properties of elastic beam laminate

专利摘要:
The present disclosure relates to one or a combination of chassis, inner leg cuffs, outer leg cuffs, flap panels, side panels, waistband and waistband of an absorbent article, which may comprise one or more pluralities of elastics. firmly spaced (less than 4 mm, less than 3 mm, less than 2 mm and less than 1 mm) and / or low medium dtex (dtex less than 300, less than 200, less than 100) and / or medium pre-stretch low (less than 300%, less than 200%, less than 100%) to provide low interlaced pressure (less than 1 psi according to the conditions defined by the interlaced pressure test) while providing a suitable section module (between about 2 gf / mm and 15 gf / mm) to make the article easy to apply and to comfortably hold the article in place even with a loaded core (containing at least 100 ml of liquid) , to provide the advantages described above. In addition, the elastomeric laminates of the present disclosure outperform existing laminates currently used for disposable absorbent articles in that they refer to one or more major parameters (including contact area percentage, height value 2 to 98%, pressure under interlacing, permeability). air, water vapor permeability rate, gauge, gauge retention value, cantilever bending, open area, section modulus, roughness wavelength, roughness frequency, graphical distortion ratio).
公开号:BR112019012088A2
申请号:R112019012088-2
申请日:2017-12-19
公开日:2019-10-29
发明作者:Darren Seitz Bret；Dean Lavon Gary；Allen Eckstein Joseph；Marie Wade Sarah；Schneider Uwe
申请人:Procter & Gamble；
IPC主号:

专利说明:

PROPERTIES OF BEAM ELASTIC LAMINATE
FIELD OF THE INVENTION [0001] The present disclosure relates to absorbent articles, more particularly, disposable absorbent articles comprising improved elastomeric laminates configured to take part in various components of the disposable absorbent articles.
BACKGROUND OF THE INVENTION [0002] The present disclosure details elastomeric laminates that comprise a greater number of elastic yarns having greater fineness and closer spacing than previously disclosed or practiced on disposable absorbent articles. In addition, the present disclosure details combinations of these elastic elements in groupings, including groupings with traditional elastics (for example, yarns, films, extruded filaments, talar, elastomeric nonwovens, etc.) that have not been previously disclosed.
[0003] These improved elastomeric laminates can be used as disposable absorbent articles (for example, diapers with tape, diapers in the form of underwear, pads and linings), components for adjustment and sealing at the user's waist, legs, groins and sides to obtain, in general, the highest level of extensibility, the most comfortable conditions of use, improved leak protection and a better fit.
[0004] More particularly, these improved elastomeric laminates offer several advantages, including improved textures and less pressure from the elastic elements on the user's skin in a given module over traditional elastic laminates known today. These improvements result in
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2/133 improved application (for example, making pants-like items easier to open for placement), adjustment, comfort and reduced skin marking of the user. The elastomeric laminate of the invention disclosed in this application performs better than the traditional film and strand laminated versions known today.
[0005] Prior art elastomeric laminates have several negative aspects for the consumer that vary based on the laminated structure. For example, traditional stranded laminates used in absorbent articles known today typically comprise elastic elements of relatively high decitex (also called in the present invention dtex) and relatively large elastic spacing which, when combined, result in high pressure conferred by each elastic on the skin and large wrinkles out of control in the laminate that both lead to an appearance not similar to a garment, reduced comfort and skin marking. Traditional stranded laminates typically comprise elastic bands at least 4 mm apart, mainly due to the manufacturing and handling limitations of individual elastic yarns through separate material feeds. In relation to extruded yarns and / or extruded rubber materials, they are similar to many elastomeric films in that they typically comprise thermoplastic materials that are subjected to significant stress relaxation over time and thus do not maintain forces suitable at the waist and legs to provide adequate initial and sustained fit and sealing throughout use.
[0006] Regarding elastic film laminates,
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3/133 they are significantly more occlusive (that is, less breathable, with very little or no air permeability), resulting in greater skin hydration and as a result significantly reduced comfort and increased marking associated with hydrated skin susceptibility to marking. In addition, elastic laminates based on film in general tend to have a higher modulus than stranded elastic laminates, therefore, being more difficult to apply to a user (making it difficult to open for placement), therefore requiring more sizes to cover a given user adjustment range. It is also very difficult to create a force profile through elastic film laminate or elastic laminate based on talagase since they are typically formed through blankets with relatively uniform properties.
[0007] There is, therefore, a consumer need that has not been met for a long time, which is to create a product that provides very low pressure on the skin, a high level of breathability, an adequate force for sustained adjustment, a low modulus, a high extensibility and a smooth uniform texture. Such an absorbent article would provide improved skin condition, marking and hydration, ease of application, ease of removal, improved sustained fit, improved sealing, as well as better adaptation to the body and user comfort.
[0008] Meeting all unmet needs of the consumer requires a complete new structural design of the elastomeric laminates used in the absorbent article. The balance of elastic decitex, the spacing of elastic yarns, the number of elastics and the elastic pre-tension required to provide such an exclusive blend
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4/133 of properties requires elastic decitex that is very low, far below that of the prior art, arranged in elastic to elastic spacing that are also very low, also well below the prior art, which in turn requires a greater number of elastics well above that known in the prior art, and elastic pre-stresses that are also low and well below almost all of the known prior art. In addition to very specific combinations of decitex, spacing, number of elastics and pre-tension necessary to apply against the range of unmet needs of consumers, an additional factor of choice for nonwoven, weight, composition, etc. it is also of critical importance to create the desired total structure. The specific set of criteria necessary to satisfy all the unmet needs of the aforementioned consumers with a single product requires not only structures of exclusive elastomeric laminate, but requires a new process, elastic in bundles (a plurality of elastics formed in and released from a bundle or coil) for the application of a large number of low decitex elastics, in low pre-tension and low spacing to obtain the correct balance of the properties of the laminate.
[0009] The applicants' disclosure will demonstrate that these unique elastomeric laminates offer not only new structures, but also an improved function that is dramatically different and better than the prior art, as shown by the various parametric methods relevant to the consumer that have been employed - including the use of surface topography to characterize and scale the distinctly smooth texture. The surface topography also provides a
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5/133 key perception in the frequency of roughness and wavelength of roughness, which are both the main parameters in the definition and characterization of the texture and leveling of the elastomeric laminates of the present disclosure. In addition to the unique texture, elastomeric laminates must maintain a high level of breathability to ensure that the skin does not become excessively hydrated and therefore, ensure a comfortable wearing experience and assist in preventing skin marks. To assess breathability and permeability to air (through air), the test is conducted to understand the volume of air that can pass through the structure. In addition, the water vapor permeability rate test is also conducted to assess how quickly the laminate can let moisture vapor from the skin through. The unique structure of the elastomeric laminates of the present disclosure results in a laminate having reduced overall stiffness and improved flexibility as demonstrated by the cantilever bending test. In addition to the improved flexibility, the unique structure of the elastomeric laminate has a low gauge without extension and maintains a high percentage of the gauge (gauge retention value) even when extended to significant strength. This uniform structure across the extension strip is very different from the structures of the prior art. The high percentage of contact area, the high frequency of roughness, the amplitude and wavelength uniformity of the roughness across the extension range also provide a perfect display for graphics. Graphical clarity is maintained in both an extended and contracted state, as demonstrated by the distortion ratio of
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6/133 chart.
[0010] Such an approach to our knowledge has never been previously revealed or attempted in the field of absorbent articles; hygienic articles, diapers with tape, diapers in the form of underwear, articles for adult incontinence, menstrual products, etc.
SUMMARY OF THE INVENTION [0011] In an example disclosed, an absorbent article may comprise a chassis and an elastomeric laminate. The chassis may comprise an upper layer, a lower layer and an absorbent core disposed between the upper layer and the lower layer. The elastomeric laminate can form at least a portion of components of an article selected from the group consisting of a strap, a side panel, a flap panel, a chassis, an upper layer and an inferior layer. The elastomeric laminate may comprise a first substrate layer and a second substrate layer and a plurality of elastics arranged between the first substrate layer and the second substrate layer. The plurality of elastics may comprise a) from about 40 to about 1000 elastic threads, b) an average thread spacing in the range of about 0.25 mm to about 4 mm, c) an average dtex in the range of about 10 to about 500 ed) an average pre-stretch in the range of about 50% to about 400%. The first substrate layer and the second substrate layer can have a weight from about 6 grams per square meter to about 30 grams per square meter. The elastomeric laminate can have a percentage of contact area of at least one of: a) greater than about 11% at 100 pm, b) greater than about 28% at 200 pm and c) greater than about 51% at 300 pm. The elastomeric laminate can have a height value of 2% to 98% of <
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7/133
1.6 mm.
[0012] The plurality of elastics can comprise from about 100 to about 650 elastic threads.
[0013] The plurality of elastics can have an average thread spacing in the range of about 0.5 mm to about 3.0 mm.
[0014] The plurality of elastics can comprise an average dtex in the range of about 30 to about 400.
[0015] The plurality of elastics may comprise an average pre-stretch in the range of about 75% to about 300%.
[0016] The elastomeric laminate can have an interlacing pressure in the range of about 0.1 psi to about 1 psi.
[0017] The elastomeric laminate can have an air permeability of at least one of: a) greater than about 40 m3 / m2 / min of air permeability at 0 gf / mm (without extension); b) greater than about 60 cubic meters / square meter / minute of air permeability at 3 g f / mm (slight extension); and c) greater than about 80 cubic meters / square meter / minute of air permeability at 7 gf / mm (moderate length).
[0018] The elastomeric laminate may have a water vapor permeability rate greater than 4000 g / m2 / 24 hours.
[0019] 0 laminate elastomeric may have one caliber of at least one of: about 0.5 mm to about 4 mm calibrate 0 g f / mm (without extension); B) in about 60% to about 95% of value retention in caliber at 3 gf / mm (slight extension) ; and c) of about 40%
at about 90% gauge retention value at 7 gf / mm (moderate extent).
[0020] The elastomeric laminate can have a flexion
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8/133 of cantilever less than about 40 mm.
[0021] The elastomeric laminate can have a roughness frequency in the range of about 0.2 mnf ¹ to about 1 mnf ¹ and a roughness wavelength in the range of about 0.5 mm to about 5 mm.
[0022] In another example disclosed, an absorbent article may comprise a chassis and an elastomeric laminate. The chassis may comprise an upper layer, a lower layer and an absorbent core disposed between the upper layer and the lower layer. The elastomeric laminate can form at least a portion of the components of an article selected from the group consisting of a waistband, waist, inner leg cuff, external leg cuff and a cross barrier. The elastomeric laminate may comprise a first substrate layer and a second substrate layer and a plurality of elastics arranged between the first substrate layer and the second substrate layer. The plurality of elastics may comprise from about 10 to about 400 elastic threads, an average thread spacing in the range of about 0.25 mm to about 4 mm, an average dtex in the range of about 10 to about 500, and an average pre-stretching in the range of about 50% to about 400%. The first layer of substrate and the second layer of substrate, each layer having a weight of about 6 grams per square meter to about 30 grams per square meter. The elastomeric laminate can have a percentage of contact area of at least one of: a) greater than about 11% at 100 pm, b) greater than about 28% at 200 pm and c) greater than about 51% at 300 pm. The elastomeric laminate can have a height value of 2% to 98% of <1.6 mm.
[0023] The plurality of elastic bands can comprise
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9/133 of about 20 to about 225 elastic threads.
[0024] The plurality of elastics may comprise an average thread spacing in the range of about 0.5 mm to about 3.0 mm.
[0025] The plurality of elastics can comprise an average dtex in the range of about 30 to about 400.
[0026] The plurality of elastics may comprise an average pre-stretch in the range of about 75% to about 300%.
[0027] The elastomeric laminate can have an interlacing pressure in the range of about 0.1 psi to about 1 psi.
[0028] The elastomeric laminate can have an air permeability of at least one of: a) greater than about 40 cubic meters / square meter / minute of air permeability at 0 gf / mm (without extension); b) greater than about 60 cubic meters / square meter / minute of air permeability at 3 g f / mm (slight extension); and c) greater than about 80 cubic meters / square meter / minute of air permeability at 7 gf / mm (moderate length).
[0029] The elastomeric laminate may have a water vapor permeability rate greater than 4000 g / m2 / 24 hours.
[0030] The elastomeric laminate can have a caliber of at least one of: a) from about 0.5 mm to about 4 mm of caliber at 0 gf / mm (without extension); b) from about 60% to about 95% of gauge retention value at 3 gf / mm (slight extension); and c) from about 40% to about 90% of gauge retention value at 7 gf / mm (moderate extent).
[0031] The elastomeric laminate can have a cantilever bending of less than about 40 mm.
[0032] The elastomeric laminate can have a
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10/133 frequency of roughness in the range of about 0.2 mm to about 1 mnf ¹ and a wavelength of roughness in the range of about 0.5 mm to about 5 mm.
BRIEF DESCRIPTION OF THE DRAWINGS [0033] Figure 1 is an image of the elastomeric laminate of the invention 150 of the present disclosure showing the contact area taken from the surface topography method.
[0034] Figure IA is an image of the elastomeric laminate of invention 120 of the present disclosure showing the contact area taken from the surface topography method.
[0035] Figure 2 current market 6 of the present contact taken from superficial.
[0036] Figure 2A current market 7 of the present contact taken from superficial.
[0037] Figure 3 diaper in the form of side garments with side seams:
is an image of the development product showing the area of the topography method is an image of the development product showing the area of the topography method is a side view of an intima comprising panels; reusable.
[0038] Figure 3A is a cross-sectional view of a reusable seam taken along line 3A-3A of the diaper in the form of underwear in Figure 3.
[0039] Figure 3B is a plan view of the diaper in the form of underwear illustrated in Figure 3, before joining the side panels to form the openings for the waist and legs.
[0040] Figure 4 is a plan view of a
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11/133 diaper in the form of underwear comprising integral side panels, before joining the side panels to form the openings for the waist and legs.
[0041] Figure 5 is a front perspective view of a diaper in the form of underwear comprising straps comprising multiple elastic zones.
[0042] Figure 5A is a perspective view of the back of the diaper in the form of underwear from Figure 5.
[0043] Figure 6 is a front perspective view of a diaper in the form of underwear comprising the different straps having both continuous and discontinuous elastics.
[0044] Figure 7 is a plan view of the diaper in the form of underwear from Figure 6, before joining the side edges of the belt to form the openings for the waist and legs.
[0045] Figure 7A is a plan view of an alternative form of diaper belt in the form of underwear of Figure 7, illustrating an elasticized upper layer.
[0046] Figure 7B is a cross-sectional view of the diaper in the form of underwear of Figure 7A taken along the transverse geometric axis, illustrating the elasticized upper layer (showing elastics 316 oriented parallel to the longitudinal geometric axis 42) and the layer bottom elastic (showing elastics 316 oriented parallel to the longitudinal geometric axis 42).
[0047] Figure 7C is a cross-sectional view of an alternative type of diaper in the form of underwear from Figure 7A taken along the transverse geometric axis, the core wrapping being
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12/133 completely surrounds the core 128, the elastics 316 are oriented parallel to the longitudinal geometric axis 42 between the core wrap 74 and the bottom layer 125 and are oriented parallel to the longitudinal geometric axis 42 between the core wrap 74 and the top layer 124 and the core 128 comprising MGA (absorbent gel material) 51 mixed with the pulp 53.
[0048] Figure 7D is a cross-sectional view of an alternative type of diaper in the form of underwear of Figure 7 taken along the longitudinal geometric axis 42, showing distinct longitudinally opposite straps, with the elastics 316 being oriented parallel to the lateral geometric axis 44 between the core wrap 74 and the upper layer 124 and oriented parallel to the lateral geometric axis 44 between the film of the lower layer 126 and the nonwoven of the lower layer 127.
[0049] Figure 7E is a cross-sectional view of an alternative form of the diaper belt in the form of underwear of Figure 7 taken along the longitudinal geometric axis 42, showing longitudinally opposite layers of the distinct internal belt longitudinally 432 and a layer of the common outer band 434 and showing elastic threads 316 extending continuously through the core.
[0050] Figure 8 is a plan view of a diaper in the form of undergarments before joining the side edges of the straps to form the openings for the waist and legs, illustrating multiple elastic bundled areas in the lower areas movement of a potential user.
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13/133 [0051] Figure 9 is a plan view of a diaper with tape comprising a pair of distinctive shaped elastomeric flap panels 530 and a pair of non-elastomeric flap panels 540.
[0052] Figure 9A is a front perspective view of the diaper with tape of Figure 9.
[0053] Figure 10 is a plan view of a diaper with tape that comprises a pair of distinct elastomeric flap panels and a pair of non-elastomeric flap panels and a formatted bottom layer.
[0054] Figure 11 is an exterior plan view of an article for feminine hygiene 801, specifically, a panty protector.
[0055] Figure 11A is an interior plan view of the feminine hygiene article 801 of Figure 11 illustrating the leg clamps 52.
[0056] Figure 11B is a cross-sectional view of the feminine hygiene article 801, along the transverse geometric axis 44 of the feminine hygiene article 801 of Figure 9.
[0057] Figure 12 is an interior plan view of an article for feminine hygiene 801, specifically an absorbent, illustrating elasticized flaps 802, where the elastics 316 are at angles of approximately 45 degrees in relation to the longitudinal geometric axis 42 and the axis lateral geometric 44.
[0058] Figure 12A is an exterior plan view of an alternative form of feminine hygiene article 801 of Figure 12, showing elasticized flaps 802, with elastics 316 being oriented parallel to the longitudinal geometric axis 42.
[0059] Figure 12B is a sectional view
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14/133 cross section of the feminine hygiene article 801, along line 12B / C-12B / C of the feminine hygiene article 801 of Figure 12A, illustrating threads between the layers that make up the flaps.
[0060] Figure 12C is a cross-sectional view of an alternative form of feminine hygiene article 801, along line 12B / C-12B / C of feminine hygiene article 801 of Figure 12A, illustrating only a layer of threads between the layers constituting the flaps, as well as underlying threads or forming a portion of the upper layer 124 and the secondary upper layer 124 '.
[0061] The Figure is a top view in interior perspective of an article with tape that comprises a transverse barrier.
[0062] Figure 14 is a schematic side view of a converter apparatus adapted to manufacture an elastomeric laminate that includes a first plurality of elastic threads positioned between a first substrate and a second substrate.
[0063] Figure 14A is a view of the converter apparatus of Figure 14 taken along line 14A - 14A.
[0064] Figure 15 illustrates the section module.
[0065] A
Figure 16 illustrates the pressure under entanglement.
[0066] Figure 17 is a graph showing the relaxation of strength over time for a laminate comprising extruded wire elastics and for the elastomeric laminate of the invention of the present disclosure.
[0067] Figure 18 illustrates articles packed with sizing symbols.
[0068] Figure 19 is an exterior view of a
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15/133 article in an extended state, the article comprising an elastomeric laminate of the present invention 302 forming a belt 430 with the engraved line (1001 (extended)) for the graphical distortion test.
[0069] Figure 19A is an exterior view of the article of Figure 19 in a contracted state, the article comprising an elastomeric laminate of the present invention 302 forming a belt 430 with the engraved line (1001 '(contracted)) for the distortion test print shop.
[0070] Figure 20 is an exterior view of an article in an extended state, the article comprising a comparative (non-inventive) elastic waistband of the prior art with the engraved line (1002 (extended)) for the graphical distortion test.
[0071] Figure 20A is an exterior view of the article of Figure 20 in a contracted state, the article comprising an elastic waistband of the prior art with the engraved line (1002 '(contracted)) for the graphical distortion test.
DETAILED DESCRIPTION [0072] The present disclosure details improved elastomeric laminates (also called bundle laminates comprising bundle elastics) comprising a greater number of elastic threads having a greater fineness (i.e., lower decitex) and a spacing closer than was previously revealed or practiced on disposable absorbent articles. These improved elastomeric laminates can be used as disposable absorbent articles (eg, diapers with tape, diapers in the form of underwear, pads and linings), components for adjusting and sealing the user's waist, legs, groins and sides to obtain, in general, the highest level of extensibility, the most usable conditions of use
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16/133 comfortable, improved leak protection and a better fit.
[0073] The explanations of the following terms may be useful for understanding this description:
[0074] The term disposable, with regard to absorbent articles, means that these, in general, are not intended to be washed or otherwise restored or reused as absorbent articles (that is, they are intended to be discarded after a single use and preferably to be recycled, decomposed or otherwise disposed of in a manner compatible with the environment). Disposable absorbent articles often comprise adhesive between the layers and / or elements to hold the article together (for example, flap panels, side panels, and waistbands are attached to the chassis through adhesive and the flap panels layers, side panels , waistband, and chassis are bonded together using adhesive). Alternatively, heat and / or pressure bonding is used with the adhesive or in place of the adhesive. In such cases portions of the material layers can become partially fused and pressed together so that once cooled, they are physically connected to each other. Non-woven adhesives (including, for example, polypropylene, polyethylene, etc.) (including, for example, styrenic block copolymers (for example, SIS, SBS)) and absorbent gel material (MGA 51 - see Figures 7 and 7B ) make up more than 50%, more than 75% and often more than 90% of the weight of the disposable absorbent article. And, a core that comprises MGA 51 is often kept inside the chassis in a way that would encapsulate and contain MGA 51 under normal conditions. Such absorbent articles
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17/133 disposables typically have an absorbent capacity greater than about 100 ml of fluid and can have capacities of up to about 500 ml of fluid or more. Sewing (including the use of thread) and / or woven materials are not typically used to produce a disposable absorbent article. If sewing or woven materials are used, they constitute an extremely small percentage of the disposable absorbent article. Some contact zones of disposable absorbent articles for fasteners may comprise a woven material, but no other part of a disposable absorbent article typically comprises woven materials.
[0075] The term absorbent article refers to devices that absorb and retain bodily exudates and, more specifically, it refers to devices that are placed against or near the user's body to absorb and retain the various exudates discharged by the body. Exemplary absorbent articles include diapers, training diapers, hygienic pants type diapers (ie, a diaper that has a waist opening and preformed leg openings, as illustrated in US Patent No. 6,120,487) , diapers that can be closed again or diapers like hygienic pants, underwear and underwear for incontinence, diaper holders and liners, feminine hygiene items such as panties protectors, feminine pads, removable absorbent liners and the like.
[0076] The terms proximal and distal refer, respectively, to the location of an element relatively close to or distant from the longitudinal or lateral central line of a structure (for example, the proximal edge of a
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18/133 element extending longitudinally is located closer to the longitudinal geometric axis than the distal edge of the same element is located in relation to the same longitudinal geometric axis).
[0077] The terms facing the user's body and facing the garment refer, respectively, to the relative location of an element, or to the surface of an element or group of elements. The term facing the user's body means that the element or surface is closer to the user during use than any other element or surface. The term garment-oriented means that the element or surface is further away from the user, during use, than any other element or surface (that is, the element or surface is close to the user's garments that may used on the disposable absorbent article).
[0078] The term longitudinal refers to a direction extending substantially perpendicular from one edge of the waist to an opposite edge of the waist of the article, and generally parallel to the maximum linear dimension of the article. Directions within 45 degrees of the longitudinal direction are considered longitudinal.
[0079] The side term refers to a direction extending from an edge extending longitudinally to an opposite edge extending longitudinally from the article and generally at a right angle to the longitudinal direction. Directions within 45 degrees of the lateral direction are considered lateral.
[0080] The term disposed refers to an element that is situated in a specific place or position.
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19/133 [0081] The joined term includes configurations by which an element is directly attached to another element by fixing the element directly to the other element and configurations by which an element is indirectly attached to another element by fixing the element to ( s) intermediate member (s), which, in turn, is / are affixed to the other element.
[0082] The terms water-permeable and water-impermeable refer to the penetrability of materials in the context of the intended use of disposable absorbent articles. Specifically, the term water permeable refers to a layer or layered structure having interconnected pores, openings and / or voids that allow liquid water, urine or synthetic urine to pass through its thickness in the absence of a pressure of force. Conversely, the term impermeable to water refers to a layer or layered structure through whose thickness liquid water, urine or synthetic urine cannot pass in the absence of a force pressure (in addition to natural forces such as gravity) . A layer or layered structure that is impermeable to water, according to this definition, may be permeable to water vapor, that is, it may be permeable to steam.
[0083] The terms elastic, elastomer or elastomeric refer to materials that have elastic properties, which include any material that, by applying a force on its initial relaxed length, can extend or stretch to an elongated length more 10% greater than its initial length and which will substantially return to its initial length upon release of the applied force. Materials
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20/133 elastomeric films may include elastomeric films, slabs, non-woven fabrics, tapes, threads and other sheet-shaped structures.
[0084] The term pre-stretch refers to the stretch imposed on an elastic or elastomeric material before combining it with another element of the elastomeric laminate or absorbent article. The pre-stretch is determined by the following equation pre-stretch = ((elastic extended length - relaxed elastic length) / relaxed elastic length) * 100.
[0085] Decitex, also known as dtex is a measurement used in the textile industry to measure threads or filaments. 1 Decitex = 1 gram per 10,000 meters. In other words, if 10,000 linear meters of a thread or filament weighs 500 grams, that thread or filament would have a decitex of 500.
[0086] The term substrate is used in the present invention to describe a material that is mainly two-dimensional (that is, in an XY plane) and whose thickness (in a Z direction) is relatively small (that is, 1/10 or less) compared to its length (in an X direction) and width (in a Y direction). Non-limiting examples of substrates include a blanket, layer or layers of fibrous, non-woven materials, films and sheets such as polymeric films or metal sheets. These materials can be used alone or can comprise two or more layers laminated together. Thus, a blanket is a substrate.
[0087] The term nonwoven refers, in the present invention, to a material made from continuous (long) filaments (fibers) and / or discontinuous (short) filaments (fibers) through processes such as
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21/133 continuous spinning, blowing via spinning, carding and the like. Nonwovens do not have a woven or knitted filament pattern.
[0088] The term machine direction (DM) is used, in the present invention, to refer to the direction of the material flow through a process. In addition, the relative location and movement of the material can be described as flowing towards the machine through a process from an upstream point in the process to a downstream point in the process.
[0089] The term transverse direction (DT) is used, in the present invention, to refer to a direction that is, in general, perpendicular to the machine direction.
[0090] The term diaper with tape (also called an open diaper) refers to disposable absorbent articles that have an initial front waist region and an initial rear waist region that are not closed, pre-closed or connected with each other when packaged, before being placed on the user. A diaper with tape can be folded around the lateral central line with the inside of a waist region in contact between surfaces with the inside of the opposite waist region without fixing or joining the waist regions. Examples of diapers with tape are disclosed in various suitable configurations in US Patent Nos. 5,167,897, 5,360,420, 5,599,335, 5,643,588, 5,674,216, 5,702,551, 5,968,025, 6,107,537, 6,118 .041, 6,153,209, 6,410,129, 6,426,444, 6,586,652, 6,627,787, 6,617,016, 6,825,393 and 6,861,571; and in US patent publications No. 2013/0072887 Al; 2013/0211356 Al and 2013/0306226 Al.
[0091] The term diaper in the form of underwear
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22/133 (also called training pants, pre-closed diaper, diaper type pants and diaper-pants to wear) refers in the present invention to disposable absorbent articles having a continuous perimeter waist opening and continuous perimeter leg openings designed for baby or adult users. Pants can be configured with a continuous or closed opening for the waist, and at least one continuous and closed opening for the legs before the article is applied to the user. Diapers in the form of underwear can be preformed or pre-closed by various techniques including, but not limited to, joining portions of the article using any permanent closing element and / or that can be closed again (for example, joints, hot connections, pressure welds, adhesives, cohesive connections, mechanical closures, etc.). Diapers in the form of underwear can be preformed anywhere along the circumference of the article in the waist region (for example, with closure or side seam, with closure or seam on the anterior waist, with closure or seam on the posterior waist ). Examples of pants-type diapers in various configurations are disclosed in US Patent Nos. 4,940,464; 5,092,861; 5,246,433; 5,569,234; 5,897,545; 5,957,908; 6,120,487; 6,120,489; 7,569,039 and in US patent publications 2003/0233082 A1; 2005/0107764 Al, 2012/0061016 Al, 2012/0061015 Al; 2013/0255861 Al; 2013/0255862 Al; 2013/0255863 Al; 2013/0255864 Al and 2013/0255865 Al, all of which are incorporated herein by reference in the present invention.
[0092] The term closed shape means that opposite waist regions are joined, when packed, permanently or in a fixable way to form a
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23/133 waist opening and one leg opening, continuous.
[0093] The term open shape means that the opposite waist regions are not initially joined together to form an opening for the waist and continuous leg openings but comprise a closure means as a fastening system for joining the waist regions together to form the waist and leg openings before or during application of the article to a user.
[0094] The term channel, as used here, is a region or zone in a layer of absorbent material that has a substantially lower weight (for example, less than 50%, less than 70%, less than 90%) than surrounding material in the material layer. The channel can be a region in a layer of material that is substantially free of material (for example, 90% free of material, 95% free of material or 99% free of material or completely free of material). A channel can extend through one or more layers of absorbent material. The channels generally have a lower flexural modulus than the surrounding regions of the absorbent material layer, allowing the material layer to flex more easily and / or rapidly distribute more body exudates within the channels than in the surrounding areas of the layer of absorbent material. Thus, a channel is not merely an indentation in the material layer that does not create a reduced weight in the material layer in the channel area.
Absorbent articles of the present disclosure [0095] Products comprising elastomeric laminates of the present disclosure may comprise absorbent articles 100 of different structure and / or shape
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24/133 that are generally designed and configured to control body exudates such as urine, menstruation and / or feces, such as diapers with tape and diapers in the form of disposable underwear, including disposable absorbent items for babies and adults.
[0096] As shown in the Figures, the absorbent articles 100 of the present disclosure may comprise a chassis 200 comprising an upper layer 124, a lower layer 125 and an absorbent core 128 disposed at least partially between, the upper layer 124 and the lower layer 125. The chassis 200 may additionally comprise an inner leg grip 150 and an outer leg grip 140 (the handles generally referred to as 52).
[0097] An end portion of an absorbent article 100 can be configured as an anterior waist region 36 and the longitudinally opposite end portion can be configured as a posterior waist region 38. An intermediate portion of absorbent article 100 extending longitudinally between the anterior waist region 36 and the posterior waist region 38 can be configured as a region between the thighs 37. The length of each one between the anterior waist region 36, the posterior waist region 38 and the region between the thighs 37 can be about 1/3 the length of the absorbent article 100, for example (see, for example, Figures 9 and 10). Alternatively, the length of each one between the anterior waist region 36, the posterior waist region 38 and the region between the thighs 37 may have other dimensions (for example, defined by the waistband or flap panel or side panel dimensions - see , for example, Figures 3B, 4, and 7). The absorbent article 100 may have an edge of the anterior waist end 136 extending
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25/133 laterally in the anterior waist region 36 and an edge of the posterior waist end 138 longitudinally opposite and extending laterally in the posterior waist region 38.
[0098] The chassis 200 of absorbent article 100 may comprise a first longitudinally extending side edge 237a and a second longitudinally and laterally extending side edge 237b. Both side edges 237 can extend longitudinally between the edge of the front waist edge 136 and the edge of the rear waist end 138. The chassis 200 can form a portion of the edge of the front waist edge 136 extending laterally in the region of the anterior waist 36 and a portion of the edge of the posterior waist end 138 extending laterally and longitudinally opposite in the region of the posterior waist 38. In addition, the chassis 200 may comprise an interior surface of the chassis, 202 (forming at least a portion of the user-facing surface 4), an outer surface of the chassis 204 (forming at least a portion of the surface facing the garment 2), a longitudinal axis 42 and a lateral axis 44. The longitudinal axis 42 can be extend through a midpoint of the edge of the edge of the anterior waist 136 and through a midpoint of the edge of the edge of the waist p rear 138, while the lateral axis 44 can extend through a midpoint of the first lateral edge 237a and through a midpoint of the second lateral edge 237b.
[0099] With reference to Figure 7, often true for absorbent articles with waistband, the chassis 200 can have a length measured along the geometric axis
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26/133 longitudinal 42 which is less than the length of the absorbent article 100. Both side edges 237 of the chassis 200 cannot extend longitudinally to one or both of the edge of the front waist edge 136 and the edge of the waist end rear 138. Chassis 200 may not form a portion of one or both of the edge of the anterior waist edge 136 extending laterally in the anterior waist region 36 and a portion of the edge of the posterior waist end 138 extending laterally and longitudinally opposite in the posterior waist 38.
[0100] With reference to Figure 7B, the chassis 200 may comprise elastics 316 oriented parallel to the longitudinal geometric axis 42 between the nonwoven of the lower layer 127 and the film of the lower layer 126. Figure 7C shows an alternative embodiment of the Figure 7B, where the chassis 200 has elastics 316 oriented parallel to the longitudinal geometric axis 42 between the core wrap 74 and the lower layer 125. Still further, Figure 7D shows another alternative embodiment where the chassis 200 comprises elastics 316 oriented in parallel with the lateral geometric axis 44 between the film of the lower layer 126 and the nonwoven of the lower layer 127. Figure 7B also shows the elastics 316 oriented in parallel with the longitudinal geometric axis 42 between a first upper layer 124a and a second layer top 124b, while Figure 7C shows an alternative embodiment where the elastics 316 are between the top layer 124 and the n wrap core 74. Still further, Figure 7D shows the elastics 316 oriented in parallel with the lateral geometric axis 44 between the upper layer 124 and the core wrap 74.
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27/133 [0101] Still in relation to an elasticized chassis 200, Figures 12A, B and C show an elasticized chassis 200, where the elastics 316 are arranged between the layers of the flaps 120. Figure 12 shows elastics 316 oriented towards the fence 45 degrees in relation to the longitudinal geometric axis 42 and the lateral geometric axis 44. Figure 12A is an alternative embodiment of Figure 12, showing the elastics of the flap 316 oriented parallel to the longitudinal geometric axis 42. Figure 12B shows two layers of elastics 316 on the flaps 120, both oriented parallel to the longitudinal geometric axis 42, the lower layer of elastics 316 being spaced with gaps between clusters, and separated by a non-woven flap layer 121. Figure 12C is an alternative embodiment of Figure 12B, where there is only one layer of elastics and no flap layer of nonwoven 121. Figure 12C also shows elastics 316 oriented parallel to the longitudinal geometric axis 42 between the upper layer 124 and the secondary upper layer 124 '(which can alternatively be oriented parallel to the lateral geometric axis 44 - not shown) and elastics 316 oriented parallel to the longitudinal geometric axis 42 between the lower layer film 126 and the nonwoven of the lower layer 127 (which can alternatively be oriented parallel to the lateral geometric axis 44 - not shown).
[0102] A portion or all of the absorbent article 100 can be made to be laterally elastically extensible. The extensibility of the absorbent article 100 may be desirable to enable the absorbent article 100 to conform to a user's body during movement by the user. Extensibility may also be desirable, for example, in order to enable
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28/133 that the caregiver extends the anterior waist region 36, the posterior waist region 38, the region between the thighs 37 and / or the chassis 200 to provide additional body coverage for users of different sizes, that is, to shape the adjustment of absorbent article 100 to the individual user and assist in ease of application. Such an extension can provide the absorbent article 100 with a generic hourglass shape, provided that the region between the thighs 37 is extended to a relatively lesser extent than the waist regions 36 and / or 38. This extension can also give the article an adjusted appearance. absorbent 100 during use.
[0103] Chassis 200 may be substantially rectangular and may have separate side panels 330 (Figure 3B), extensible flap panels 530 (Figure 9) and / or non-extensible flap panels 540 (Figure 9) joined to chassis 200 on or adjacent to the side edges of chassis 237 at one or both of the front waist region 36 and the rear waist region 38. Portions of one or more between the side edges of chassis 237, the edge of the front end of chassis 236 and the edge the rear end of chassis 238 can be arched or curved in a convex or concave manner, as shown in Figures 11, 11A and 12. The chassis 200 can comprise integral side panels 330 (see Figure 4), integral extendable flap panels (see Figure 10), integral waistbands 430 (see Figure 8) or integral non-extensible flap panels 540 formed by one or more of the nonwoven of the external cover, the film of the lower layer, the material of the external clamp for the s legs, the upper layer or wrap of the core 74 arranged in one or both of the regions of the anterior and posterior waist (Figure 9). Alternatively, chassis 200 may comprise panels
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29/133 different sides 330 (see Figure 3B), different extensible flap panels 530 (see Figures 9, 9A and 10), or distinct waistband 430 (Figures 5 to 7A and 7D). The chassis can be shaped or non-rectangular in one region of the waist, and substantially rectangular in the region of the opposite waist. Alternatively, the chassis may be substantially rectangular in one or both of the waist regions and non-rectangular in the region between the thighs.
[0104] The absorbent articles of the present disclosure may comprise a plurality of elastic elements extending laterally, the elastic elements being present in a first region of the waist, in the region between the thighs and in the second region of the opposite waist.
Closed diaper article [0105] Absorbent articles, in the style of diapers in the form of underwear, in closed form are generally revealed in Figures 3 to 8, and are designed to be packaged in closed form having an opening for the waist 190 and two leg openings 192 and designed to be placed on the wearer as a pair of durable underwear. Diapers in the form of underwear may comprise distinct elastomeric side panels 330 (Figure 3B) and / or distinct waistband 430 (Figure 7) in one or both of the anterior waist region 36 and the posterior waist region 38. Alternatively, the side panels 330 and / or waistband 430 can be formed integrally with other elements of the article, such as chassis 200 (Figures 4 and 8).
[0106] When the absorbent article comprises front and rear waist straps 430, the sides of the front and rear waist straps 430 on one side of the article can be permanently or relocably joined together and the
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30/133 front and rear side panels on the opposite side of the article can be permanently joined or fixed together to create an opening for the waist 190 and a pair of leg openings 192 (Figures 5, 5A and 6). The 430 waistband provides an elastic extensible feature that provides a more comfortable and contoured fit by initially adjusting the article 100 to the wearer in a conformable manner and maintaining that fit over time of use, well after the underwear diapers have been loaded with exudates, since the elastomeric side panels allow the sides of diapers in the form of underwear to expand and contract. In addition, the 430 elastomeric waistband provides ease of application and develops and maintains wear forces and stresses to keep the article 100 in the user and improve fit, especially when elastic beam laminates are used to form the 430 waistband. Elastomeric side panels enable ease of application
allowing the pair of diapers under form in underwear be pulled so conformable on the hips of user and positioned at the waist Where the waistband 430 if
conform to the body and provide sufficient tension to maintain the position of the article in the user. The tension created by the side panels is transmitted from the elastic waistbands 430 along the opening for the waist 190 and over at least a portion of the leg opening 192. Typically, particularly in relation to different side panels 330, the chassis 200 is disposed between the side panels 330 and extends to form a portion of the waist edge 136 and / or 138 of the diapers in the form of underwear comprising side panels 330. In other words, a portion of the waist edge 136 and / or 138 in
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31/133 one or both of the region of the anterior waist 36 and the region of the posterior waist 38 can be formed, in part, by the side panels 330 and, in part, by the chassis 200.
[0107] Diapers in the form of undergarments comprising side panels 330 may also comprise a pair of laterally opposite resealable joints 174 as shown in Figures 3 and 3A. The resealable side joint 174 can be formed by attaching in an affixable manner to an inner surface of a portion of the article, for example, a side panel 330, to an outer surface of another portion of the article 100, for example, a side panel longitudinally opposite 330 or the chassis 200 to form the resettable side joint 174. Figure 3A illustrates a front side panel 330f comprising a latch 175 comprising hooks facing the opposite side of a user (the latch 175 disposed on an external surface of the front side panel 330f) that is securely attached to a coupling closure 178 (loops or a suitable nonwoven in Figure 3A), the coupling closure 178 being arranged on an internal surface of the rear side panel 330b. Note that Figure 3A is an alternative embodiment of Figures 3 and 3B, since the diapers in the form of underwear in Figures 3 and 3B do not comprise a coupling closure 178 - instead, closure 175 in Figures 3 and 3B attaches reliably directly to the rear side panels 330.
[0108] Underwear diapers comprising waistband 430 may also comprise a first permanent side junction 172 and a second permanent side junction laterally 172 as illustrated, for example, in Figures 5, 5A and 6. The permanent side junction 172 can be formed by the union of a
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32/133 inner surface of a portion of article 100, for example waistband 430, to an outer surface of another portion of article 100, for example a longitudinally opposite waistband 430 or chassis 200 to form permanent side junction 172. Alternatively, the permanent side junction 172 can be formed by joining an inner surface of a portion of the article 100, for example a waistband 430, to an inner surface of another portion of the article 100, for example, a waistband 430 longitudinally opposite to form the permanent side junction 172. Any diapers in the form of underwear that comprise the side panel configurations 330 described above may comprise a waistband 122 in which at least a portion of the waistband 122 (as shown in Figure 3B) is arranged in or immediately adjacent to the waist edge 136 and / or 138 and overlaps a portion of the central chassis 200. The waistband 122 can extend laterally to overlap portions internal leg clamps 150 and / or portions of the elastomeric side panels 330. The waistband 122 may be arranged on the inner surface 202 of the chassis 200 or alternatively between the upper layer 124 and the lower layer 125.
[0109] Particularly in relation to the waistband 430, as shown in Figure 7E, the inner belt layer 432 and / or the outer belt layer 434 of the first and the second elastomeric waistband 430 may be formed by a common belt layer, as shown in Figure 7E. When the first and the second elastomeric waistband 430 have a common waistband layer, the common waistband layer can extend from a first waist edge in a first waist region to a second waist edge
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33/133 longitudinally opposite in a second waist region, that is, edge of the anterior waist 136 to the edge of the posterior waist 138.
[0110] In addition, particularly in relation to diapers in the form of underwear with waistband 400, as shown in Figures 7 and 7A, diapers in the form of underwear with waistband 400 may have a first elastomeric waistband 430 arranged in a first region waist having a first longitudinal length and a second elastomeric waistband 430 disposed in a second waist region having a second longitudinal length, the longitudinal length of the first waistband being greater than the longitudinal length of the second waistband along the side edge of the waistband at the side junction or a position adjacent to it. This difference in length helps to provide coverage for the buttocks on the back of the diapers in the form of underwear providing a more underwear-like appearance. And while this advantage is
revealed to the diapers in form underwear with waistband 400, there too an advantage in have panels side longitudinally longest 330 in the region gives waist posterior 38. Open ribbon article [0111] Absorbent articles, of style with ribbon, in open way, are generically revealed in Figures 9 a
10. The diaper-open article with tape 500, as shown in Figures 9 and 10, may comprise elastomeric flap panels 530 in one or both of the region of the anterior waist 36 and the region of the posterior waist 38. The panels of elastomeric tabs 530 can be structurally unitary with other elements of article 100 or as a separate element joined to another element
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34/133 of article 100. The first 530 elastomeric flap panels provide an elastic extensible feature that provides a more comfortable and contoured fit by initially adjusting article 100 to the user in a conformable manner and maintaining that fit over time of use as well after the diaper with tape 500 has been loaded with exudates, since the first 530 elastomeric flap panels allow the diaper to expand and contract to fit the user. Additionally, the elastomeric flap panels 530 develop and maintain wear forces (stresses) and accentuate the stresses developed and maintained by the clamping system 179 (including clasps 175 (for example, hooks) that can be releasably engaged with a clasp coupling 178 (for example, loops)), to keep article 100 on the user and improve fit. The elastomeric flap panels 530 assist especially in maintaining the primary tension line formed by the fastening system 179, allowing the diaper to conform in a conforming manner on the user's hips where there is dynamic movement, and initially pre-tensioning the opening for the waist 190 and leg opening 192, since the positioner typically extends elastomeric flap panels 530 when applying diaper tape 500 over the user so that when elastomeric flap panels 530 contract, tension is transmitted to from the elastomeric flap panels 530 along the waist opening 190 and along at least a portion of the leg opening 192. Although the open-shaped article of the present disclosure may have the elastomeric flap panels 530 arranged in the region of the posterior waist 38, alternatively, the diaper with tape 500 can be provided with elastomeric flap panels 530 arranged in the region gives
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35/133 front waist 36 or both between the front waist region 36 and the back waist region 38. The open-shaped article may also have elastomeric flap panels 530 arranged in a first waist region and elastomeric flap panels 530 or non-elastomeric flap panels 540 arranged in a second waist region.
[0112] In an alternative modality, the absorbent articles, with tape style, in an open form may comprise an elastomeric waistband 430 arranged in one of the regions of the waist. The elastomeric waistband 430 can be joined and / or positioned in a specific location or position and can be structurally unitary with other elements of article 100 or as a separate element joined to another element of article 100. In a diaper with tape and waistband, the Elastomeric waistband 430 can be arranged in the region of the posterior waist 38. Elastomeric waistband 430 can have fasteners arranged at the laterally opposite ends of the waistband or in a position adjacent to them. Closures 175 can be arranged on the inner surface of the waistband 430 to engage with a separate coupling closure component 178 or with the outer surface 204 of the article (such as non-woven lower layer 127) in order to secure the article to the user .
Outer layer material [0113] The bottom layer 125 may comprise a bottom layer film 126 and a nonwoven layer of the bottom layer 127. The nonwoven layer of the bottom layer 127 may also be called an outer coating material. The material of the outer covering forms at least a portion of the surface facing the garment of the absorbent article 100 and effectively covers the film of the bottom layer 126 so that the film is not
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36/133 present on the surface facing the garment. 0
material coating outside can understand a standard binding, openings and / or resources three-dimensional. Absorbent core [0114] As used here, the core term
absorbent 128 refers to the component of absorbent article 100 which has the most absorbent capacity and which comprises an absorbent material. With reference to Figures 7, 7B, and 7C, in some cases, the absorbent material (for example, 51 and 53) can be positioned inside a core pouch or a core wrap 74. The absorbent material can be profiled or not profiled, depending on the specific absorbent article. The absorbent core 128 may comprise, essentially consist of, or consist of, a core shell, an absorbent material and glue contained within the core shell. The absorbent material may comprise superabsorbent polymers, a mixture of superabsorbent polymers and aerated felt, only aerated felt and / or a foam. In some cases, the material
pad can understand when any less 80% any less 85% minus 90%, to 95% less any less 99% or up until 10 0% polymers superabsorbents, in Weight, of material
pad. In such cases, the absorbent material may be free of aerated felt, or at least predominantly free of aerated felt - in such cases MGA 51 can be held in place by an adhesive 54, such as a thermoplastic adhesive. And, for swim diapers, the item may be free of superabsorbent polymers. The periphery of the absorbent core, which can be the periphery of the core wrap, can define any suitable shape, such as a
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37/133 rectangular shape, in T, Y, hourglass or dog bone, for example. A periphery of the absorbent core which is generally shaped like a dog bone or hourglass can taper along its width towards the region between the thighs 37 of the absorbent article 100.
[0115] With reference to Figures 7, 7B and 7C, the absorbent core 128 may have areas that have little or no absorbent material, where a surface facing the user of the core bag 74 can be joined to a surface facing the part of clothing from the core pouch 74. These areas that have little or no absorbent material can be called channels 129. These channels can incorporate any suitable formats and any suitable number of channels can be provided. In other cases, the absorbent core can be embossed to create the impression of channels. The absorbent core in Figures 7, 7B and 7C is merely an example of an absorbent core. Many other absorbent cores with or without channels are also within the scope of the present disclosure.
[0116] As used here, a loaded absorbent core is one that contains (or is capable of containing) a charge
at least 50, 100 or 200 milliliters (mL) for diapers, diapers under form in underwear and articles for incontinence in adults. Articles absorbents
disposables of the present disclosure that comprise an absorbent core are designed to fit the user with an empty absorbent core (ie one that is not loaded), as well as being able to adjust usage for an appreciable time (2 or more hours) even when the core is loaded.
Catch materials
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38/133 [0117] One or more capture materials (eg 130) may be present at least partially between the top layer 124 and the absorbent core 128. The capture materials are typically hydrophilic materials that provide significant capillary effect absorption. of bodily exudates. These materials can remove water from the upper layer 124 and quickly move the body exudates into the absorbent core 128. The capture materials 130 can comprise one or more nonwoven materials, foams, cellulosic materials, cross-linked cellulosic materials, produced non-woven cellulosic materials by air deposition (airlaid), hydroentangled materials, or combinations thereof, for example. In some cases, portions of the capture materials may extend through portions of the upper layer 124, portions of the upper layer 124 may extend through portions of the capture materials and / or the upper layer 124 may be nested with the materials capture. Typically, a capture material or layer may be of a width and length that are less than the width and length of the top layer 124. The acquisition material may be a secondary top layer in the context of a feminine pad. The acquisition material can have one or more channels, as described in the section of the absorbent core 128 (including the embossed version). The channels in the acquisition material may or may not align with the channels in the absorbent core 128. In one example, a first acquisition material may comprise a non-woven material and a second acquisition material may comprise a cross-linked cellulosic material.
Contact zone [0118] With reference to Figure 9A, the article
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The absorbent 39/133 100 may have a contact zone area 45 that is formed on a portion of the surface facing the garment 2 of the outer coating material. The contact zone area 45 may be in the region of the posterior waist 38 if the absorbent article 100 is attached from the front to the rear or it can be in the region of the anterior waist 36 if the absorbent article 100 is attached from the rear to the front. In some cases, the contact zone 45 may be or may comprise one or more non-woven materials that are attached to a portion of the outer lining material in the anterior waist region 36 or in the posterior waist region 38 depending on whether the absorbent article attaches to the front or back. In essence, the contact zone 45 is configured to receive the latches 175 and can comprise, for example, a plurality of loops configured to be engaged with a plurality of hooks on the latches 175, or vice versa.
Moisture indicator / graph [0119] The absorbent articles 100 of the present disclosure may comprise graphs (for example, a chassis graph 299, a waistband 399 graph, a side panel graph 499, or a flap panel graph 599) and / or humidity indicators 80 that are visible from the surface facing the garment 2. The graphics can be printed on the contact zone 45, the lower layer 125, the upper layer 124, the waistband 430, the panels side panels 330 and flap panels 530 and / or elsewhere. Moisture indicators are typically applied to the side facing the absorbent core of the lower layer film 126, so that they can be brought into contact with bodily exudates within the absorbent core 128. In some cases, moisture indicators can form
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40/133 portions of the graphs eg 299. For example, a humidity indicator can appear or disappear and create / remove a character within some graphs. In other cases, humidity indicators 80 may coordinate (for example, same design, same pattern, same color) or not coordinate with the graphics. Alternatively,
graphs and / or indicators in moisture 80 may be over and / or visible The leave gives surface User-facing 204. [0120] One or more of the panels in flap / sides
330, 530 can comprise a graphic arranged thereon. One or more of the elastomeric flap / side panels 330, 530 comprise a graph (e.g., 399, 599) substantially aligned with a chassis graph 299 to form a composite graph. In addition, the front and rear belts 430f and 430b can comprise graphics. The graphics can extend substantially around the entire circumference of the absorbent article 100 and can be arranged through the side junctions 172 and / or through the proximal front and rear waist edges 15 (see Figure 5); or, alternatively, adjacent to the joints in the manner described in US Patent No. 9,498,389 to create an article more similar to underwear. The graphics can also be discontinuous.
Top layers
[0121] Articles absorbents 10 0 from gift revelation can understand a layer higher 124. A top layer 124 is the part and article pad 100 that is in contact with the skin of user. The layer higher 124 may to be attached to the bottom layer 125, core pad 128, to the clamps for the legs 52 and / or any other layers, as is known by
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41/133
knowledgeable in the technique. THE layer supei senior 124 Can be malleable, soft to the touch and not annoying for the skin of user. Additionally, a portion or all the layer
The upper layer may be permeable to liquids, allowing the liquid exudates to penetrate quickly through its thickness. A suitable top layer can be manufactured from a wide range of materials, such as porous foams, reticulated foams, plastic films with openings, woven materials, non-woven materials, woven or non-woven materials of natural fibers (for example, fibers of wood or cotton), filaments or synthetic fibers (for example, bicomponent fibers of PE / PP or polyester or polypropylene or mixtures thereof), or a combination of natural and synthetic fibers. The top layer can have one or more layers. The upper layer may be provided with openings, may have any suitable three-dimensional features, and / or may have a plurality of embossings (for example, a connection pattern). The top layer can be provided with openings
through the over-consolidation of a materi there and then , a rupture of overconsolidations through of frown per cylinder of rings as revealed at US patent n ° 5,628,097, to Benson et al., granted in May 13 in
1997, and disclosed in the publication of US patent application No. US 2016/0136014, by Arora et al. Any portion of the top layer can be coated with a skin care composition, an antibacterial agent, a surfactant and / or other beneficial agents. The top layer may be hydrophilic or hydrophobic or may have hydrophilic and / or hydrophobic portions or layers. If the top layer is hydrophobic, openings are typically present so that body exudates can pass through the
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42/133 top layer.
Lower layers [0122] The absorbent article 100 of the present disclosure can comprise a lower layer 125. The lower layer 125 is generally that portion of the absorbent article 100 positioned close to the surface facing the garment of the absorbent core 128. The lower layer 125 can be joined to portions of the upper layer 124, to the nonwoven of the lower layer 127, to the absorbent core 128 and / or to any other layers of the absorbent article by any fastening methods known to those skilled in the art. The lower layer film 126 prevents, or at least inhibits, the body exudates absorbed and contained in the absorbent core 128 from soiling articles such as bed sheets, underwear and / or garments. The bottom layer is typically liquid-impermeable, or at least substantially liquid-impermeable. The bottom layer can, for example, be or comprise a thin plastic film, such as a thermoplastic film having a thickness of about 0.012 mm to about 0.051 mm. Other suitable lower layer materials may include breathable materials, which allow vapors to escape from the absorbent article while still preventing, or at least inhibiting, the passage of body exudates through the lower layer.
Leg clamps [0123] The absorbent articles 100 of the present disclosure may comprise leg clamps 52, which include internal leg clamps 150 and external leg clamps 140. The internal leg clamps 150 can be positioned laterally within external leg clamps 140. Each
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43/133 of the leg clamps 52 can be formed of a piece of material that is attached to the absorbent article 100 so that it can extend upwards from a user-facing surface of the absorbent article 100 and provide improved containment of body exudates approximately at the junction between the user's torso and legs. The internal leg clamps 150 are bounded by an edge directly or indirectly attached to (or formed by) the top layer and / or the bottom layer and a free end edge, which is intended to contact and form a seal with the skin of the user. The inner leg clamps 150 can extend longitudinally at least partially (or completely) between the edge of the front waist 136 and the edge of the rear waist 138 of the absorbent article 100 on opposite sides of the chassis and can be at least present in the region between the thighs 37. The inner leg clamps 150 may individually comprise one or more elastics 316 (e.g., elastic strands or bands) near or at the free end edge. These elastics 316 cause the internal leg clamps 150 to help form a seal around a user's legs and torso. The outer leg clamps 140 extend, at least partially, between the front end edge 136 and the rear end edge 138. The outer leg clamps 140 essentially cause portions of the absorbent article 100 close to the side edges chassis 237a and 237b help to form a seal around the user's legs. The outer leg clamps 140 can extend at least in the region between the thighs 37.
Waistband / waist limiter [0124] The absorbent articles 100 of this
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44/133 disclosure may comprise one or more elastic waistbands 122. The elastic waistbands 122 may be positioned on the surface facing the garment or the surface facing the user, or may be formed between them. As an example, a first elastic waistband 122 may be present in the anterior waist region 36, close to the edge of the anterior waist 136, and a second elastic waistband 122 may be present in the region of the posterior waist 38, close to the edge of the posterior waist 138. The elastic waistband
122 can assist in sealing the absorbent article 100 around a user's waist and at least inhibit bodily exudates from escaping the absorbent article 100 through the circumference of the waist opening. In some cases, an elastic waistband may completely surround the waist opening 190 of the absorbent article 100. A waist restraint 123 may be formed by an extension of the waistband 122 and may remain unscrewed to the underlying structure in the central portion of the restraint. waist 123 to enable the body exudates flowing along the top layer 124 to be trapped between the top layer 124 and the bottom side of the waist limiter 123. In other words, the waist limiter
123 can be joined to the underlying structure, for example, the central chassis 200 of the absorbent article 100 along the longitudinally distal edge of the waist limiter 123 and / or along the laterally opposite side edges of the waist limiter 123.
Waistband [0125] In addition to what has been revealed about waistbands in the OPEN SHAPED TAPE ARTICLE and CLOSED SHAPE ARTICLE Sections above, the front and rear waistbands 430f and 430b may comprise layers of front and rear waistbands 432
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45/133 and front and rear waistband layers 434 that have an elastomeric material (for example, yarns 316 or a film (which can be provided with openings)) at least partially arranged between them. The elastic yarns 316 or the film can be relaxed (including being cut) to reduce the elastic elongation on the absorbent core 128 or, alternatively, pass continuously through the absorbent core 128. The elastic yarns 316 can have uniform or variable spacing between the same in any portion of the waistband. The elastic yarns 316 can also be pre-stretched in the same amount or in different amounts. The front and rear waistbands 430f and 430b can have one or more zones free of elastic element where the chassis 200 overlaps the waistbands 430f and 430b. In other cases, at least some of the elastic threads 316 may extend continuously through the chassis 200.
[0126] The front and rear layers of the inner waist 432 and the front and back layers of the outer waist 434 can be joined using adhesives, hot connections, pressure joints, ultrasonic, or thermoplastic connections. Various suitable configurations of the waistband layer can be found in US Patent Application Publication No. 2013/0211363.
[0127] The end edges of the front and rear waistband 438f and 438b can extend longitudinally beyond the end edges of the front and rear chassis 236 and 238 or can be co-terminal. The side edges of the front and rear waistband 437 can extend laterally beyond the side edges of the chassis 237a and 237b. The front and rear waistbands 430f and 430b can be continuous (that is, have at least one layer that is continuous (see 434 in Figure 7E) from the edge of the end
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46/133 from waistband 438f to the end edge of the opposite waistband 438b). Alternatively, the front and rear waistband 430f and 430b can be discontinuous from the edge of the waistband 438f to the edge of the opposite waistband 438b (see
432 and 434 in Figure 7D), so that are distinct. [0128] According revealed in the patent US n ° 7,901,393, the length longitudinal (along of axis geometric longitudinal < central 42) of the rear waistband 430b Can be bigger than length longitudinal of waistband
anterior 430f, and this can be particularly useful for increased buttock coverage when the rear waistband 430b has a longer longitudinal length in relation to the front waistband 430f adjacent or immediately adjacent to the side joints 172. Alternatively, the bottom corners of the rear long can be trimmed in diagonal or curved lines.
[0129] The front and rear waistbands 430f and 430b can include slits, holes and / or perforations that provide breathability, increased softness and a garment-like texture. The underwear-like appearance can be accentuated by the substantial alignment of the edges of the waist and legs at the side joints 172.
Absorbent article packaging and packaging symbols [0130] The absorbent articles 100 of the present disclosure can be placed in packages 610 (shown in Figure 18 as dotted lines so that the absorbent articles 100 can be seen). The packages may comprise polymeric films and / or other materials. Graphics and / or symbols 1000 related to the properties of absorbent articles can be formed, printed, positioned and / or placed on the external portions of the
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47/133 packages. Each package can comprise a plurality of absorbent articles 100. The absorbent articles 100 can be packed under compression in order to reduce the size of the packages, while still providing an adequate amount of absorbent articles per package. By packaging absorbent articles under compression, caregivers can easily handle and store 610 packages, while providing distribution savings for manufacturers due to the size of the packages. Consequently, packs 610 of absorbent articles 100 of the present disclosure may have a stack height in the pouch, as disclosed in US patent publication No. 2014/0052088, granted to Weisman, entitled ABSORBENT PRODUCTS HAVING IMPROVED PACKAGING EFFICIENCY.
[0131] Desirably, the 610 package has parallel sides and a top of the package that is parallel to the bottom of the package, making the package ideal for stacking on a shelf for storage or for display in a store for purchase by consumers. Typically, packs 610 of absorbent articles 100 are labeled with a recommended user weight range (typically for babies, young children and older children) and / or waist circumference (typically for adult absorbent article products) than the article packaged is meant to fit. As a result, weight and / or waist circumference information is most often placed on package 610 as part of the marking areas 1000 to identify the appropriate size of article required by the consumer.
[0132] Additionally, the marking areas 1000 can illustrate the user using the article and / or an area of
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48/133 separate markup can illustrate the component or feature of the article. In relation to absorbent articles for babies, descriptions of symbols of suitable stages of development and methods of displaying the packaging comprising the absorbent articles can be found in US Patent No. 7,222,732 granted to Ronn, entitled MERCHANDISE DISPLAY SYSTEM FOR IDENTIFYING DISPOSABLE ABSORBENT ARTICLE CONFIGURATIONS FOR WEARERS.
Lines [0133] The term line means a display of packages comprising disposable absorbent articles of different article constructions (for example, different elastomeric materials [compositionally and / or structurally] on the side panels, side flaps and / or waist flaps, various graphic elements, different product structures, closures or lack thereof, sizes, core capacities, etc.). Packaging may have the same brand and / or sub-brand and / or the same registered trademark and / or have been manufactured by or for a common manufacturer and packaging may be available at a common point of sale (for example, oriented close together in a particular area of a retail store). A provision is marketed as a product line that normally has similar packaging elements (for example, type of packaging material, film, paper, dominant color, design theme, etc.) that give the consumer the idea that Different individual packages are part of a larger line. Often, the lines have the same brand, for example, Huggies, and the same sub-brand, for example, Pull-Ups. A different product in the line may have the same Huggies brand and Little Movers sub-brand. Differences between the product's Pull-Ups and the product
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Little Movers in the line can include product shape, application style, different fixation designs or other structural elements designed to address differences in physiological or psychological development. In addition, the packaging is distinctly different in that Pull-Ups are packed in a predominantly blue or pink film pouch and Little Movers are packed in a predominantly red film pouch.
[0134] Additionally in relation to Lines, as another example a line can be formed by different products that have different product forms produced by the same manufacturer, for example, Kimberly Clark, and having a common trademark registration, for example, a product may have the Huggies trade name and sub-brand, for example, Pull-Ups. A different product in the line may have a Good Nites brand / sub-brand and both are registered trademarks of Kimberly-Clark Corporation and / or are produced by Kimberly-Clark. Lines often also have the same trademarks, including trademarks of the brand, sub-brand and / or features and / or benefits through the provision. Online line means a Line distributed by a common online source.
Transverse barrier [0135] As shown in Figure 13, the transverse barrier 16 can extend parallel to the lateral geometric axis 44 and can be joined by connections 13 to the clamps 150 and joined by connections 14 to the upper layer 124 so that the barrier cross section extends in a Z direction opposite to the top layer when the article (for example, 500) is opened and used. More particularly, the transverse barrier 16 may extend in a Z direction due, in part, to the clamps upright in the
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50/133 direction Z when the article is opened for use. The transverse barrier 16 can prevent fecal matter from migrating into the anterior waist region 36. Thus, the transverse barrier 16 can be oriented adjacent to the region where the anterior waist 36 and the region between the thighs 37 meet, or it can be arranged between the junction where the anterior waist region 36 and the region between the thighs 37 meet and the lateral geometric axis 44. The displacement of the connection sites 13 and 14 will influence the angle of the transverse barrier 16 in relation to the layer
I guessed senior 124. The places of connection 13 and 14 can to be oriented from so that the transverse barrier if extend in an direction Z that is about 90 degrees gives surface of top layer 124. Hygiene article feminine [0136] With reference to the Figures 11 at 12C the
absorbent articles of the present disclosure may be a feminine hygiene article 801 also called a sanitary napkin and include feminine pads and panty protectors. The sanitary pad 801 may comprise a liquid-permeable top layer 124, a liquid-impermeable bottom layer, or substantially liquid-impermeable layer 125 and an absorbent core 128. The liquid-impermeable bottom layer 125 may or may not be vapor permeable. The absorbent core 128 may have any or all of the features described herein that pertain to the absorbent core 128 and, in some forms, may have a secondary upper layer 124 '(CSS) in place of the capture materials disclosed above. CSS 124 'can comprise one or more channels, as described above (including embossed version). In some ways, the channels in CSS 124 'can be aligned with the
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51/133 channels in the absorbent core 128. The sanitary napkin 801 may also comprise flaps 120 extending outwardly relative to a longitudinal geometric axis 42 of the sanitary napkin 801. The sanitary napkin 801 may also comprise a lateral geometric axis 44. The flaps 120 can be integral with CS (top layer), Cl (bottom layer) joined to top layer 124, bottom layer 125 and / or absorbent core 128.
Process [0137] Referring to Figures 14 and 14A, a plurality of elastic threads 316 (from about 10 threads to about 1500 threads having a decitex of about 10 to about 500) unfolds around a first geometric axis of rotation 346 of a first beam 314 (which is a first measuring device 310) in the direction of the DM machine and transfers the plurality of elastic yarns 316 from the first beam 314 (for example, a warp beam) to a second measuring device 312 (which includes a first cylinder 324 having a second axis of rotation 328 and a second cylinder 331 having a third axis of rotation 334, which form a choke 336). The plurality of elastic yarns 316 can be extended along the direction of the DM machine between the first measuring device 310 and the second measuring device 312 to pre-stretch the plurality of elastics 316 (from about 50% to about 400% ). The extended elastic yarns 316 can be joined through an adhesive 350 from an adhesive applicator 349 (or the plurality of elastics 316 can be joined by other suitable means) with a first layer of substrate 306 and a second layer of substrate 308 in the second measuring device 312 to produce an elastomeric laminate 302, so that each wire is spaced
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52/133 (in the DT) in the elastomeric laminate of about 0.25 mm to about 4 mm. It is this process that forms the elastomeric laminate 302 of the present disclosure and which can additionally be incorporated into the various components of absorbent article such as the waistband, the flap panels, the side panels, the transverse barriers, the upper layers, the lower layers, the clamps, waist limiters and / or chassis to offer the benefits described in this patent application. Additional details of the process for creating elastomeric laminate (s) in bundles for use in disposable absorbent articles are disclosed in US publication No. 62 / 436,589, entitled METHODS AND APPARATUSES FOR MAKING ELASTOMERIC
LAMINATES WITH ELASTIC STRANDS UNWOUND FROM BEAMS, first inventor being Schneider, deposited on December 20, 2016. Elastomeric laminate 302 can be produced as part of the absorbent article production line, or can be produced offline, and rolled out as an elastomeric laminate which is fed to the production line of the absorbent article.
Elastomeric laminate (s) of the present disclosure [0138] An elastomeric laminate 302 of the present disclosure can comprise a plurality of elastics 316 between a first substrate 306 and a second layer of substrate 308, where the plurality of elastics 316 (often called first plurality of rubber bands, a second plurality of rubber bands, etc.) have an average wire spacing in the range of about 0.25 mm to about 4 mm, an average dtex in the range of about 10 to about 500, and an interlacing pressure in the range of about 0.1 to about 1 psi. Said elastomeric laminate 302 can be used to form at least a portion of various components of the absorbent article. When the laminate
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Elastomeric 53/133 302 forms at least a portion of at least one of the group consisting of a waistband, a chassis, a side panel, an upper layer, a lower layer and a flap panel, and combinations thereof, the plurality elastic bands 316 of the elastomeric laminate 302 may comprise from about 40 to about 1000 elastic threads. And, when the elastomeric laminate 302 forms at least a portion of at least one of the group consisting of a waistband, a waist limiter, an internal leg clamp, an external leg clamp and a cross barrier, and combinations thereof , the first plurality of elastics 316 of the elastomeric laminate 302 may comprise from about 10 to about 400 elastic threads. Finally, the plurality of elastics is a contextual term, where certain properties (for example, average dtex, average wire spacing, pressure under interlacing, etc.), dispositions, attributes, characteristics, etc. of elastics are referred to to define what is a certain plurality of elastics.
[0139] In addition, the elastomeric laminate 302 can form at least a portion of one or more from the group of article components including a waistband 430, a side panel 330, chassis 200, an upper layer 124, lower layer 125 and a flap panel 530, elastomeric laminate 302 can comprise a plurality of elastics 316 having from about 40 to about 1000 elastic threads with an average thread spacing in the range of about 0.25 mm to about 4 mm, a dtex average in the range of about 10 to about 500, an average pre-stretch in the range of about 50% to about 4000%; and a first substrate 306 and a second substrate 308, each having a base weight in the range of about 6 grams per square meter to about 30
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54/133 grams per square meter.
[0140] When the elastomeric laminate 302 can form at least a portion of one or more among the group of components of the article including a waistband 430, a side panel 330, a chassis 200, an upper layer 124, a lower layer 125 and a flap panel 530, the elastomeric laminate 302 can comprise a plurality of elastics 316 having from about 50 to about 825 elastic threads. In addition, the plurality of elastics 316 may comprise from about 100 to about 650 elastic threads. In addition, the plurality of elastics 316 may comprise from about 150 to about 475 elastic threads.
[0141] When the elastomeric laminate 302 can form at least a portion of one or more among the group of article components including a waistband 430, a side panel 330, a chassis 200, an upper layer 124, a lower layer 125 and a flap panel 530, elastomeric laminate 302 can comprise a plurality of elastics 316 having an average yarn spacing in the range of about 0.5 mm to about 3.5 mm. In addition, the plurality of elastics 316 may have an average thread spacing in the range of about 1.0 mm to about 2.5 mm.
[0142] When the elastomeric laminate 302 can form at least a portion of one or more among the group of article components including a waistband 430, a side panel 330, a chassis 200, an upper layer 124, a lower layer 125 and a flap panel 530, the elastomeric laminate 302 can comprise a plurality of elastics 316 having an average dtex in the range of about 30 to about 400. In addition, the elastomeric laminate 302 can have an average dtex of the plurality of elastics 316 of about 50 to about 250.
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55/133 [0143] When the elastomeric laminate 302 can form at least a portion of one or more among the group of article components including a waistband 430, a side panel 330, a chassis 200, an upper layer 124, a lower layer 125 and a flap panel 530, the elastomeric laminate 302 can comprise a plurality of elastics 316 which have an average pre-stretch which can be from about 75% to about 300%. In addition, the elastomeric laminate may comprise a plurality of elastics 316 with an average pre-stretch in the range of about 100% to about 250%.
[0144] The elastomeric laminate 302 can form at least a portion of one or more from the group of article components including a waistband 122, a waist limiter 123, an inner leg clamp 150, an outer leg clamp 140 and an transverse barrier 16 and can comprise a plurality of elastics 316 having from about 10 to about 400 elastic threads with an average thread spacing in the range of about 0.25 mm to about 4 mm, an average dtex in the range of about from 10 to about 500, an average pre-stretch in the range of about 50% to about 400% and a first substrate 306 and / or a second substrate 308, each having a base weight in the range of about 6 grams per square meter to about 30 grams per square meter.
[0145] The elastomeric laminate 302 can form at least a portion of one or more among the group of article components including a waistband 122, a waist limiter 123, an inner leg clamp 150, an outer leg clamp 140 and an transverse barrier 16 and can comprise a plurality of elastics 316 having from about 15 to about 300 elastic threads. In addition
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56/133 the plurality of elastics 316 may comprise from about 20 to about 225 elastic threads. In addition, the plurality of elastics 316 can comprise from about 25 to about 150 elastic threads.
[0146] The elastomeric laminate 302 can form at least a portion of one or more from the group of article components including a waistband 122, a waist limiter 123, an inner leg clamp 150, an outer leg clamp 140 and an transverse barrier 16 and can comprise a plurality of elastics 316 having an average thread spacing in the range of about 0.5 mm to about 3.0 mm. In addition, the plurality of elastics 316 may have an average thread spacing in the range of about 0.75 mm to about 2.5 mm.
[0147] The elastomeric laminate 302 can form at least a portion of one or more of the article's component group including a waistband 122, a waist limiter 123, an inner leg clamp 150, an outer leg clamp 140 and an transverse barrier 16 and can comprise a plurality of elastics 316 having an average dtex in the range of about 30 to about 400. Alternatively, the plurality of elastics 316 of the elastomeric laminate 302 can have an average dtex in the range of about 50 to about 250.
[0148] The elastomeric laminate 302 can form at least a portion of one or more among the group of article components including a waistband 122, a waist limiter 123, an inner leg clamp 150, an outer leg clamp 140 and an transverse barrier 16 and can comprise a plurality of elastics 316 having an average pre-stretch in the range of about 75% to about 300%. Alternatively, the laminate
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57/133 elastomeric may comprise elastic elements with an average pre-stretch in the range of about 100% to about 250%.
[014 9] Any of the waistband 430, side panel 330, flap panel 530, chassis 200, top layer 124, bottom layer 125, waistband 122, waist limiter 123, leg clamp inner leg 150, outer leg clamp 140 or transverse barrier may comprise an elastomeric laminate 302 comprising a plurality of elastics 316 having interlocking pressure in the range of about 0.1 psi to about 1 psi, or about 0.2 psi to about 0.8 psi.
[0150] Any of the waistband 430, side panel 330, flap panel 530, chassis 200, top layer 124, bottom layer 125, waistband 122, waist limiter 123, inner leg clamp 150, the external leg clamp 140 or the transverse barrier may comprise an elastomeric laminate comprising an air permeability at 0 gf / mm (without extension) greater than about 40 cubic meters / square meter / minute and / or a level of air permeability at 3 gf / mm (slight extension) greater than about 60 cubic meters / square meter / minute and / or a level of air permeability at 7 gf / mm (moderate extension) greater than about 80 cubic meters / square meter / minute.
[0151] Any of waistband 430, side panel 330, flap panel 530, chassis 200, top layer 124, bottom layer 125, waistband 122, waist limiter 123, inner leg clamp 150, the external leg clamp 140 or the transverse barrier may comprise an elastomeric laminate comprising a water vapor permeability rate greater than 2000
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58/133 g / m2 / 24 h, greater than 4000 g / m2 / 24 h or greater than 6000 g / m2 / 24 h.
[0152] Any of waistband 430, side panel 330, flap panel 530, chassis 200, top layer 124, bottom layer 125, waistband 122, waist limiter 123, inner leg clamp 150, the external leg clamp 140 or the transverse barrier may comprise an elastomeric laminate
comprising a area bigger open what about 70%, greater than about 80%, bigger than about in 90%. [0153] Any one of the waistband 430, the panel
side 330, flap panel 530, chassis 200, top layer 124, bottom layer 125, waistband 122, waist limiter 123, inner leg clamp 150, outer leg clamp 140 or crossbar may comprise an elastomeric laminate having a caliber at 0 gf / mm (without extension) of about 0.5 mm to about 4 mm and / or a retention value of caliber at 3 gf / mm (slight extension) of about from 60% to about 95% and / or a gauge retention value of 7 gf / mm (moderate length) from about 40% to about 90% [0154] Any of the waistband 430, side panel 330 , the flap panel 530, the chassis 200, the top layer 124, the bottom layer 125, the waistband 122, the waist limiter 123, the inner leg clamp 150, the outer leg clamp 140 or the transverse barrier can comprise an elastomeric laminate comprising a cantilever bending less than about 40 mm or alternatively less than about 35 mm in other modalities the cantilever bending can be less than 30 mm or alternatively less than 25 mm. The 302 elastomeric laminate of the present disclosure may have cantilever flexion of
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59/133 about 15 mm to about 30 mm.
[0155] Any of the waistband 430, side panel 330, flap panel 530, chassis 200, top layer 124, bottom layer 125, waistband 122, waist limiter 123, inner leg clamp 150, the outer leg clamp 140 or the transverse barrier may comprise an elastomeric laminate comprising a percentage of contact area greater than about 13% at 100 pm and / or greater than about 27% at 200 pm and / or greater than about 39% at 300 pm and / or a height value of 2% to 98% <1.6 mm. Alternatively, any of the waistband 430, side panel 330, flap panel 530, chassis 200, top layer 124, bottom layer 125, waistband 122, waist limiter 123, inner leg clamp 150 , the outer leg clamp 140 or the transverse barrier may comprise an elastomeric laminate comprising a percentage of contact area greater than about 10% at 100 pm and / or greater than about 20% at 200 pm and / or greater than about 30% at 300 pm and / or a height value of 2% to 98% of <2.2 mm. The comparative difference in the percentage of contact area is shown in Figures 1, IA, for elastomeric laminates 302 of the present disclosure, and in Figures 2 and 2A, for products currently marketed elastic laminates of the prior art. The elastomeric laminate 302 of the present disclosure can have a height value of 2 to 98% between 0.3 and about 3.0.
[0156] Any of the waistband 430, side panel 330, flap panel 530, chassis 200, top layer 124, bottom layer 125, waistband 122, waist limiter 123, inner leg clamp 150, the external leg clamp 140 or the transverse barrier may comprise an elastomeric laminate
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60/133 comprising a roughness frequency in the range of about 0.2 mnf ¹ to about 1 mnf ¹ and a roughness wavelength in the range of about 0.5 mm to about 5 mm.
[0157] It should also be considered that any of the waistband 430, the side panel 330, the panel with flap 530, the chassis 200, the upper layer 124, the lower layer 125, the waistband 122, the limiter of waist 123, the inner leg clamp 150, the outer leg clamp 140 or the transverse barrier may comprise an elastomeric laminate comprising one or more of the parametric values and ranges cited earlier in this document.
[0158] An absorbent article of the present disclosure may have an elastomeric laminate 302 forming at least a portion of one or more of a waistband 430, a side panel 330, a flap panel 530, a waistband 122, a chassis 200, a layer upper 124 and a lower layer 125. The elastomeric laminate 302 can comprise a plurality of elastics 316 that have a specific medium dtex, nonwoven type, non-woven grammage, average yarn spacing and average pre-stretch. And, the article may comprise two or more absorbent article components (including a waistband 430, a side panel 330, a flap panel 530, a waistband 122, a chassis 200, an upper layer 124 and a lower layer 125) comprising a elastomeric laminate 302 which has one or more identical or substantially identical laminated elements (including a medium dtex, non-woven type, non-woven grammage, average yarn spacing and medium pre-stretch).
[0159] In addition to the elastic yarns in bundle 316 that can be used in each of the components of absorbent article, other elastic components such as nonwovens
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61/133 elastic bands, elastomeric films, elastomeric foams, elastomeric bands and elastomeric tapes, or combinations thereof, can be used with the 316 bundle elastics.
[0160] In one embodiment, an absorbent article comprising an elastomeric laminate 302 and an elastomeric laminate can form at least a portion of one or more of the group of article components including a waistband 430, a side panel 330, a chassis 200 , an upper layer 124, a lower layer 125 and a flap panel 530. The elastomeric laminate 302 may comprise a plurality of elastics 316 having from about 40 to about 1000 elastic threads or from about 100 to about 650 elastic threads or from about 150 to about 475 elastic threads. The plurality of elastics 316 may have an average thread spacing in the range of about 0.25 mm to about 4 mm or from about 0.5 mm to about 3.5 mm or from about 0.75 mm to about 2.5 mm. The plurality of rubber bands 316 can comprise rubber bands having a mean dtex in the range of about 10 to about 500 or about 30 to about 400 or about 50 to about 250. The plurality of rubber bands 316 can also have a average pre-stretching in the range of about 50% to about 400% or about 75% to about 300% or from about 100% to about 250%. The elastomeric laminate may also comprise a first layer of substrate 306 and / or a second layer of substrate 308, each of which may have a basis weight in the range of about 6 grams per square meter to about 30 grams per square meter . The elastomeric laminate 302 comprising the plurality of elastics 316 may have an interlacing pressure in the range of about 0.1 psi to about 1 psi, or about
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0.2 psi to about 0.8 psi. The elastomeric laminate may comprise an air permeability at 0 gf / mm (without extension) greater than about 40 cubic meters / square meter / minute and / or an air permeability level at 3 gf / mm (slight extension) greater than about 60 cubic meters / square meter / minute or an air permeability level of 7 gf / mm (moderate length) greater than about 80 cubic meters / square meter / minute. The elastomeric laminate may comprise a water vapor permeability rate greater than 2000 g / m2 / 24 h, greater than 4000 g / m2 / 24 h or greater than 6000 g / m2 / 24 h. Elastomeric laminate having a caliber at 0 gf / mm (without extension) of about 0.5 mm to about 4 mm and / or a retention value of caliber at 3 gf / mm (slight extension) of about 60% at about 95% and / or a gauge retention value of 7 gf / mm (moderate extent) from about 40% to about 90%. The elastomeric laminate may comprise a cantilever bending of less than about 40 mm and alternatively less than about 35 mm. The elastomeric laminate may also comprise a percentage of contact area greater than about 10% at 100 pm and / or greater than about 20% at 200 pm and / or greater than about 28% at 300 pm and / or a value height from 2% to 98% <1.8 mm. Alternatively, the elastomeric laminate may comprise a percentage of contact area greater than about 11% at 100 pm and / or greater than about 28% at 200 pm and / or greater than about 51% at 300 pm and / or a height value from 2% to 98% of <1.6 mm. The elastomeric laminate having a roughness frequency in the range of about 0.2 mnf ¹ to about 1 mnf ¹ and a roughness wavelength in the range of about 0.5 mm to about 5 mm. In alternative modalities, the elastomeric laminate can comprise a
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63/133 frequency of roughness in the range of about 0.2 mid ¹ to about 0.85 mnf ¹ and roughness wavelengths in the range of about 1.2 mm to about 5 mm. The elastomeric laminate can also have a section module of about 2 gf / mm to about 15 gf / mm, alternatively from about 3 gf / mm to about 12 gf / mm, in alternative modalities, in the range of about 4 gf / mm to about 10 gf / mm. The elastomeric laminate can also have an open area greater than about 60%, alternatively greater than about 75% or greater than about 90%.
[0161] In another embodiment, an absorbent article comprising an elastomeric laminate 302 and an elastomeric laminate may form at least a portion of one or more of the group of article components including a waistband 122, a waist limiter 123, a inner leg clamp 150, an outer leg clamp 140 and a transverse barrier 16. Elastomeric laminate 302 may comprise a plurality of elastics 316 having from about 10 to about 400 elastic threads or from about 15 to about 300 threads elastic or about 20 to about 225 elastic threads or about 25 to about 150 elastic threads. The plurality of elastics 316 may have an average thread spacing in the range of about 0.25 mm to about 4 mm or from about 0.5 mm to about 3.5 mm or from about 0.75 mm to about 2.5 mm. The plurality of rubber bands 316 can comprise rubber bands having a mean dtex in the range of about 10 to about 500 or about 30 to about 400 or about 50 to about 250. The plurality of rubber bands 316 can also have a average pre-stretch in the range of about 50% to about 400% or about 75% to about 300% or about 100% to about 250%. The elastomeric laminate can comprise
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64/133 also a first layer of substrate 306 and / or a second layer of substrate 308, each of which may have a basis weight in the range of about 6 grams per square meter to about 30 grams per square meter. The elastomeric laminate 302 comprising the plurality of elastics 316 can have an interlacing pressure in the range of about 0.1 psi to about 1 psi, or from about 0.2 psi to about 0.8 psi. The elastomeric laminate may comprise an air permeability at 0 gf / mm (without extension) greater than about 40 cubic meters / square meter / minute and / or an air permeability level at 3 gf / mm (slight extension) greater than about 60 cubic meters / square meter / minute or an air permeability level of 7 gf / mm (moderate length) greater than about 80 cubic meters / square meter / minute. The elastomeric laminate may comprise a water vapor permeability rate greater than 2000 g / m2 / 24 h, greater than 4000 g / m2 / 24 h or greater than 6000 g / m2 / 24 h. Elastomeric laminate having a gauge at 0 gf / mm (without extension) of about 0.5 mm to about 4 mm and / or a gauge retention value at 3 gf / mm (slight extension) of about 60% at about 95% and / or a gauge retention value of 7 gf / mm (moderate extent) from about 40% to about 90%. The elastomeric laminate may comprise a cantilever bending of less than about 40 mm and alternatively less than about 35 mm. The elastomeric laminate may also comprise a percentage of contact area greater than about 10% at 100 pm and / or greater than about 20% at 200 pm and / or greater than about 28% at 300 pm and / or a value height from 2% to 98% <1.8 mm. Alternatively, the elastomeric laminate may comprise a percentage of contact area greater than about 11% at 100 pm and / or greater
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65/133 than about 28% at 200 pm and / or greater than about 51% at 300 pm and / or a height value of 2% to 98% of <1.6 mm. Elastomeric laminate that has a roughness frequency in the range of about 0.2 mid ¹ to about 1 mid ¹ and a roughness wavelength in the range of about 0.5 mm to about 5 mm. In alternative embodiments, the elastomeric laminate may comprise a roughness frequency in the range of about 0.2 mid ¹ to about 0.85 mif ¹ and wavelengths from about 1.2 mm to about 5 mm. The elastomeric laminate can also have a section module of about 2 gf / mm to about 15 gf / mm, alternatively from about 3 gf / mm to about 12 gf / mm, in alternative modalities, in the range of about 4 gf / mm to about 10 gf / mm. The elastomeric laminate can also have an open area greater than about 60%, alternatively greater than about 75% or greater than about 90%.
Surface topography [0162] In the surface topography method, a specimen of elastic laminate is removed from an absorbent article and extended through and in contact with the convex surface of a transparent horizontal cylindrical pipe segment, allowing the surface area topology of the side facing the laminate body is measured through the transparent pipe segment using optical profilometry. The 3D surface data is then sampled and processed to extract various parameters that describe the percentage of contact area and the height of 2 to 98% of the surface of the elastic laminate specimen, as well as the frequency of roughness and the length of roughness wave.
[0163] The epidermis is the outermost layer of the skin. Categorized in five horizontal layers, the epidermis in the
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66/133 truth consists of somewhere between 50 cell layers (in thin areas) up to 100 cell layers (in thick areas). The average thickness of the epidermis is 0.1 millimeters or 100 micrometers, which is about the thickness of a sheet of paper. The dermis, which is the layer immediately below the epidermis, can have a thickness between 1.0 mm and 1.5 mm. For comparison, we selected a first adjustment to determine the percentage of contact area corresponding to the thickness of the epidermis, 100 micrometers, a second adjustment at 2X the epidermis, or 200 micrometers, and a third adjustment at 3X the epidermis, 300 micrometers.
[0164] It is evident from surface topography measurements that the examples of elastomeric laminate of the invention 302 have significantly greater surface contact at 100 pm (1.5X to 1.9X), 200 pm (1.8X to 2.5X ) and 300 pm (1.9X to 2.7X) compared to the prior art structures in the table above for both waistband 122 applications as well as waistband 430 applications (see Figures 1, IA, 2 and 2A). In addition, the height value of 2% to 98% that is derived from surface topography data also shows a significant difference in surface smoothness for the invention 302 elastomeric laminate examples compared to prior art structures. These differences in increased surface contact, as well as in surface smoothness, will have a direct and significant impact on minimizing or eliminating the skin marking of the various structures that can be created from the elastomeric laminates of the invention 302, such as waistband 430, side panels 330, flap panels 530, waistband 122, waist restraints 123, upper layers 124, lower layers 125, clamps for inner legs 150, clamps
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67/133 for external legs 140 and transverse barriers 165. In contrast, the data above for the height value 2% to 98% show that the prior art product has a much rougher surface due, in part, to its elasticity of greater decitex and greater spacing that results in greater uncontrolled roughness. The larger uncontrolled roughnesses are combined with significantly lower surface contact and it can be seen that the pressure on the skin and the skin marking is probably significantly higher for prior art product runs.
[0165] In addition to the surface topography, it is also important to ensure that the skin maintains an adequate moisture content and does not become excessively hydrated as by occlusion. Excessively hydrated skin such as skin that has been occluded, especially in warmer climates, may be more prone to skin marking and damage. Thus, it is also an objective of such an elastomeric laminate of the invention 302 to provide adequate breathability, air permeability through the structure, to help keep the skin in the proper hydration content by working in collaboration with the smooth surface of the elastomeric laminate of the invention to provide optimal unmarked skin conditions or skin damage. Therefore, it is desirable that the elastomeric laminate of the invention 302 has a level of air permeability at 0 gf / mm (without extension) greater than about 40 cubic meters / square meter / minute and / or a level of air permeability at 3 gf / mm (slight extension) greater than about 60 cubic meters / square meter / minute and / or an air permeability level of 7 gf / mm (moderate extension) greater than about 80 cubic meters / square meter / minute.
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68/133 [0166] Therefore, it would be beneficial to have an absorbent article 100 comprising a chassis 200 having an upper layer 124, a lower layer 125 and an absorbent core 128 disposed between the upper layer 124 and the lower layer 125 and an elastomeric laminate. 302 joined to the chassis 200 so that the elastomeric laminate 302 comprises a first plurality of elastics 316 disposed between the first and the second substrate layer 306 and 308. The elastomeric laminate 302 can form at the
one less portion in to any less one of The group what consisting of a waistband 430 , one panel lateral 330, a layer higher than 124 and one panel of tab 530. 0 laminate elastomeric 302 can Tue a percentage in contact in surface to 100 pm May r that about 10% and / or an percentage contact in surface at 200 pm bigger what
about 20% and / or a percentage of contact surface at 300 pm or greater than about 28%. In addition, the elastomeric laminate 302 can have a height value of 2% to 98% less than about 1.6. The elastomeric laminate 302 can have an air permeability level of 0 gf / mm (without extension) from about 40 cubic meters / square meter / minute to about 80 cubic meters / square meter / minute and / or a permeability level in air at 3 gf / mm (slight extension) of about 60 cubic meters / square meter / minute at about 120 cubic meters / square meter / minute and / or a level of air permeability at 7 gf / mm (moderate extension ) from about 80 cubic meters / square meter / minute to about 160 cubic meters / square meter / minute. The elastomeric laminate 302 may also have an air permeability at 0 gf / mm of about 40 to about 120 m3 / m2 / min.
[0167] It would also be beneficial to have an article
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69/133 absorbent 100 comprising a chassis 200 having an upper layer 124, a lower layer 125 and an absorbent core 128 disposed between the upper layer 124 and the lower layer 125 and an elastomeric laminate 302 joined to the chassis 200 so that the laminate elastomeric 302 comprises a first plurality of elastics 316 disposed between the first and the
second layer in substrate 306 and 308. 0 laminate elastomeric 302 can form to any less an portion in at least one of the group that It consists on a waistband 122, one limiter
waist 123, an inner leg clamp 150, an outer leg clamp 140 and a transverse barrier 165. The elastomeric laminate 302 may have a percentage of surface contact at 100 pm greater than about 13% and / or a percentage of surface contact at 200 pm greater than about 27% and / or a percentage of surface contact at 300 pm greater than about 39%. In addition, the elastomeric laminate 302 can have a height value of 2% to 98% less than about 1.6. The elastomeric laminate 302 can have an air permeability level of 0 gf / mm (without extension) greater than about 40 cubic meters / square meter / minute and / or an air permeability level of 3 gf / mm (slight extension) ) greater than about 60 cubic meters / square meter / minute and / or an air permeability level of 7 gf / mm (moderate length) greater than about 80 cubic meters / square meter / minute. The elastomeric laminate 302 may also have an air permeability at 0 gf / mm in the range of about 40 to about 120 m3 / m2 / min.
[0168] In addition to the skin health and skin marking benefits associated with the smooth textures made possible by the 302 elastomeric laminate, as illustrated above by the profilometry data, the structure
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70/133 of the elastomeric laminate 302 also provides a significant improvement in the control and clarity of graphics. Many absorbent articles, diapers with tape and diapers in the form of underwear, intended for use in babies and young children comprise a large number of graphic elements arranged on the outer surface as well as on the inner surface of the article. Many elastomeric structures like the waistband 430 of the prior art have structures that have large roughness and wavy surfaces that distort the graphics on the surface of the article. The surface of the elastomeric laminate 302 of the present invention is significantly smoother and as a result does not distort or mask the graphics on the surface. The magnitude of the difference is captured in the Table below.
[0169] The measurement involves stretching the article to its full width and engraving a line on the outer surface of the article extending from the upper left corner of the waistband at or adjacent to the intersection of the side junction and the edge of the waist to the lower right corner of the waistband at or adjacent to the intersection of the lateral junction and the edge of the leg. For the examples in the Table above, a 6 mm wide line was engraved on the surface. The article is then left to return to its relaxed state. A rectangular box is created based on the dimensions of the contracted line. The width of the box is measured and reported as shown in Table 5. A distortion factor is then calculated by taking the final dimension of the box and dividing it by the original width of the line. It can be seen from the data in Table 5 that the elastomeric laminate of the invention 302 has a distortion factor of 1, which means that it has demonstrated little or no
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71/133 no distortion from the fully extended state to the contracted state. The elastic waistband products 430 of the prior art have significantly higher distortion factors with all samples having a distortion factor of 4 or more, 4 to 5 times greater than the distortion factor of the elastomeric laminate of the invention 302.
[0170] Therefore, it would be beneficial to have an absorbent article 100 comprising a chassis 200 having an upper layer 124, a lower layer 125 and an absorbent core 128 disposed between the upper layer 124 and the lower layer 125 and an elastomeric laminate 302 attached to the chassis 200 so that the elastomeric laminate 302 comprises a first plurality of elastics 316 disposed between the first and the second substrate layer 306 and 308. The elastomeric laminate 302 can form at least a portion of at least one of the group consisting of a waistband 430, a side panel 330, an upper layer 124 and a flap panel 530. The elastomeric laminate 302 can have a percentage of surface contact at 100 pm greater than about 10% and / or a percentage of surface contact at 200 pm greater than about 20% and / or a percentage of contact surface at 300 pm or greater than about 28%. In addition, the elastomeric laminate 302 can have a height value of 2% to 98% less than about 1.6. The elastomeric laminate 302 can also have a graphical distortion ratio (shown in Figures 19, 19A, 20 and 20A) less than about 4, less than about 3 or less than about 2 or about 1 to about 3 Contracted graphics (symbolized by the written lines 1001 'and 1002') are less distorted when placed on the elastomeric laminate of invention 302 of the present disclosure in
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72/133 compared to those sold.
currently strung laminates
Multiple bundles [0171] It should be considered that one or more of a waistband 122, a waist limiter 123, an inner leg clamp 150, an outer leg clamp 140 and / or a transverse barrier can be formed from multiple elastic bundles. For example, a bundle can form a first portion of one or more of a waistband 122, a waist limiter 123, an inner leg clamp 150, an outer leg clamp 140 and / or a transverse barrier and a second bundle can form a second portion of one or more of a waistband 122, a waist limiter 123, an inner leg clamp 150, an outer leg clamp 140 and / or a transverse barrier where the separate bundles can comprise a different number of elastics and / or the bundles may have elastics having different decitex, and / or the elastics of the two bundles may be arranged at different spacings, and / or the separate bundles may provide elastics having different pre-stretch, and / or different bundles may provide elastics having different orientations in the product, for example: linear, arched, inclined, etc. The resulting portions of the waistband 122, waist limiter 123, inner leg clamp 150, outer leg clamp 140 and / or the transverse barrier created from such a multi-bundle approach may have a different texture, similar in appearance to different garment, section module and / or force.
[0172] It should also be considered that one or more of the components of the absorbent article including a waistband 430, a side panel 330, a flap panel 530, a waistband
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122, a chassis 200, an upper layer 124 and a lower layer 125 can comprise an elastomeric laminate 302 formed from multiple elastic bundles. For example, a bundle may form a first portion of one or more absorbent article components including a waistband 430, a side panel 330, a flap panel 530, a waistband 122, a chassis 200, an upper layer 124 and a lower layer 125, and a second bundle can form a second portion of an absorbent article component including a waistband 430, a side panel 330, a flap panel 530, a waistband 122, a chassis 200, an upper layer 124 and a lower layer 125 The separate bundles can comprise a different number of elastics and the bundles can have elastics 316 having different decitex. The elastics of the two bundles can be arranged in different spacing and / or the separate bundles can provide elastics having different pre-stretch and / or different bundles can provide elastics having different orientations in the product, for example, linear, arched, inclined, etc. . The resulting portions of the absorbent article components including a waistband 430, a side panel 330, a flap panel 530, a waistband 122, a chassis 200, an upper layer 124 and / or a lower layer 125 created from an approach of multiple bundles may have a different texture, appearance similar to the garment, section module and / or different strength.
Laterally extended elastics 316 [0173] An article for use with the body of the present disclosure may comprise one or more elastomeric laminates 302 having a plurality of elastic elements extending laterally, where the one or more elastomeric laminates may be present in a first waist region, in the region between the thighs and / or
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74/133 in the second region of the opposite waist, and where elastics 316 may be arranged in one or both of the first and second regions of the waist, they may have one or more of a higher average dtex, higher average pre-stretch and mean thread spacing less than some or all of the elastic elements extending laterally arranged in the region between the thighs. Such an article for use with the body may comprise one or more elastomeric laminates 302 having a plurality of elastics 316 having from about 100 to about 1500 elastic threads with an average thread spacing in the range of about 0.25 mm to about 4 mm, an average dtex in the range of about 10 to about 500, an average pre-stretch in the range of about 50% to about 400% and a first substrate 306 and / or second substrate 308, each having a base weight in the range of about 6 grams per square meter to about 30 grams per square meter.
Chemistry (spandex in relation to extruded filaments) and structure [0174] Elastic bundle using Spandex fibers. One type of Spandex fiber is the urea polyurethane elastomer or the high content of hard segment polyurethane elastomer, which needs to be formed into fibers using a solution (solvent) spinning process (instead of being processable) in the molten state). The urea bonds in the urea polyurethane provide strong mutual chemical interactions crucial for obtaining anchoring that allows good tension relaxation performance at temperatures close to body temperature in time scales corresponding to the use of diapers, including overnight. . This type of anchoring allows for better strength relaxation (that is, little decline in strength with
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75/133 time when kept in extended condition at body temperature) over many thermoplastic styrenic block copolymers or thermoplastic polyurethane (polyurethane with hard segment melting below 200 ° C).
[0175] In contrast, extruded filaments and slabs are typically produced from styrenic block copolymers or thermoplastic elastomers that can be formed in the molten state using conventional extrusion processes. Thermoplastic elastomers include compositions such as polyolefin elastomers, polyurethane (hard segment polyurethane melting below 200 ° C), etc. Because these thermoplastic elastomers such as polyurethane (polyurethane with a hard segment with melting below 200 ° C) can be melted / melted again and extruded they become susceptible to greater stress relaxation in use, which is the main negative aspect. The styrenic block copolymers used in extruded filaments comprise a comparatively long rubbery intermediate block located between comparatively short end blocks. End blocks short enough to enable conventional smooth flow extrusion processes are often more prone to stress relaxation and to being subjected to force relaxation over time, see Figure 17.
[0176] The urea binding present in Spandex requires that it be produced by the spinning process. Spandex cannot be fused / re-melted or extruded as styrenic block copolymers. The Spandex prepolymer is combined with solvent and additives and the solution is spun to produce the solid Spandex fiber. Multiple fibers are then formed together to form a
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Spandex. Spandex yarns can have surface finishes to avoid blocking and being rolled up in coils. A Spandex fiber can have a decitex of about 15, so a 500 decitex yarn can nominally have 33 fibers wound together to make a yarn. Depending on the decitex we use for the bundle approach, we can have 15 fibers (or filaments), 8 fibers, 5 fibers, 3 fibers or even as few as 2 fibers. Spandex fiber can be mono or bicomponent (as disclosed in WO201045637A2).
[0177] Additionally related to bundle elastic chemistry, it may be desirable to coat bundle elastics with an oil, such as a silicone oil, including about 10%, about 7%, about 5%, about 3% , or about 1% silicone oil. Treating bundle elastics with silicone oil helps to prevent blockage (crosslinking) when the threads are wound in a coil or bundle and this also decreases the COF (coefficient of friction) for the thread in textile machinery (for weaving processes) , knitting and warp).
[0178] Commercially available Spandex yarns can also be known as Lycra, Creora, Roica or Dorlastan. Spandex is often called elastane fiber or polyurethane fiber.
[0179] LYCRA HYFIT yarns, a product of Invista, Wichita, Kansas, USA are suitable for the production of yarns that make up the plurality of elastics 316 that make up elastomeric laminate 302. Some yarns, for example, HYFIT LYCRA previously mentioned, may comprise several individual fibers wound together to form the yarn. Regarding the elastic threads formed from several individual fibers, it was found that the fibers
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77/133 individuals can move relative to each other by changing the cross-sectional shape of the yarn as well as becoming unwound, which can lead to inefficient control of the
fine threads how bonding / joining / joining inefficient wires elastic one or both among the first layer in substrate 306 and the second layer of substrate 308 of laminate elast omeric 302. For minimize aspects negatives in relation to wires who understand an
plurality of fibers it would be advantageous to minimize the number of fibers in a given yarn. It would be desirable, therefore, to have less than about 40 fibers per yarn, less than about 30 fibers per yarn, less than about 20 fibers per yarn, less than about 10 fibers per yarn, less than about 5 fibers per yarn and 1 fiber forming the thread. In the case of a single fiber forming the yarn which can provide performance comparable to the prior art multiple fiber yarns, it would be desirable for the fiber to have a fiber decitex in the range of about 22 to about 300 and a fiber diameter in the range from about 50 micrometers to about 185 micrometers.
Examples of elastic beam laminates [0180] Interactions and consumer research have shown that there has been a long-unmet consumer need for absorbent articles that have the correct module balance for application and ease of removal and freedom movement while providing an article with low elastic pressure (compared to current strung products) to provide a comfortable wearing experience, free of marks on the skin. Elastomeric laminate structures that have a section modulus between about 2 gf / mm and 15 gf / mm or between 3 gf / mm and 12 gf / mm or between 4 gf / mm and 10 gf / mm have been found to be most desirable for ease of
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78/133 application, ease of removal, adjustment for adaptation and freedom of movement. Depending on the elastic configuration in these structures, they can exhibit very high pressures under each elastic element, for example, elastic threads, leading to an increase in skin marking and reduced comfort. One approach to reducing the pressure of the rubber band on the skin is to increase the number of rubber bands for a given area. Increasing the number of elastics in a given area can only reduce the pressure under each elastic, however, if this is the only change it can also significantly increase the total modulus of the elastomeric laminate structure. To obtain the correct balance between modulus and pressure on the skin, it is necessary to reduce the elastic decitex and / or the elastic stretch when the spacing between the elastics is reduced, thus increasing the number of elastics to balance the modulus and the pressure on the skin. skin and keep these parameters within the range preferred by the consumer. This advance was made possible through the application of very low decitex elastic at very low stretch levels and with very tight elastic spacing which have never been seen before in disposable absorbent articles. The application of this low decitex elastic in low stretch and tight spacing is made possible through a new technology of absorbent articles created from the textile warp beam technology approach. The Examples below are some modalities of such elastomeric structures.
Example 1 - Diaper article in the form of underwear with waistband (see, for example, Figures 5, 5A, 6, 7, 7A and 8) [0181] 0 Example 1 is an absorbent diaper article in the form of underwear with waistband. The diapers under
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79/133 form of underwear comprises a waistband laminate arranged in both regions of the waist and the following materials and construction.
External waistband layer (first of substrate 306):
Inner waistband layer (second of substrate 308):
Bottom layer film 126:
Core Wrap:
MGA;
Distribution layer:
Capture layer:
Upper layer 124:
Elastic waistband profile:
Elastic clamp profile:
Non-woven layer of continuous spinning g / m2
Non-woven g / m2 continuous spinning
12 g / m2 liquid-impermeable polyethylene film
Continuous hydrophilic spinning nonwoven of 10 g / m2 absorbent gel material; reticulated cellulosic fiber synthetic g / m2 capture layer
Non-woven spinning continues hydrophilic at 12 g / m2
Table 1, col. B
Table 4, col. Ç
Example 2 - Article with tape (see, for example, Figures 9, 9A and 10) [0182] Example 2 with tape is an absorbent article with tape on the side panel. The tape item comprises a pair of side panels arranged in a first waist region and the following materials and construction.
Elastomeric flap panel outer layer (first layer of substrate 306):
Inner layer of elastomeric flap panel (second layer of substrate 308):
Bottom layer film 126:
Core wrap:
MGA;
Distribution layer:
17 g / m2 carded non-woven 17 g / m2 continuous spinning non-woven
12 g / m2 liquid-impermeable polyethylene film
Non-woven continuous spinning hydrophilic 10 g / m2 absorbent gel material cross-linked cellulosic fiber
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Capture layer:
Upper layer 124:
Elastic side panel profile:
Elastic clamp profile:
Front waistband:
Back waistband:
synthetic g / m2 capture layer
Non-woven spinning continues
hydrophilic of 12 g / m2 Table 2, col. THE Table 4, col. B Table 3, col. THE Table 3, col. THE
Example 3 Diaper article in the form of underwear with side panel (see, for example, Figures 3 and 3B) [0183] Example 3 is an absorbent article for diapers in the form of underwear with side panel.
diaper article in the form of underwear has a pair of side panels arranged in each waist region comprising the following materials and construction.
Outer layer of the side panel (first layer of substrate 306):
Inner layer of the side panel (second layer of substrate 308):
Bottom layer film 126:
Core wrap:
MGA:
Distribution layer:
Capture layer:
Upper layer 124:
Elastic profile of the front side panel:
Elastic profile of the rear panel:
Elastic clamp profile:
Front waistband:
Back waistband:
17 g / m2 carded nonwoven 17 g / m2 continuous spinning nonwoven
12 g / m2 liquid-impermeable polyethylene film
10 g / m2 hydrophilic continuous spinning non-woven absorbent gel material reticulated cellulosic fiber g / m2 synthetic capture layer
12 g / m2 hydrophilic continuous spinning nonwoven
Table 2; col. B
Table 2; col. B
Table 4, col. THE
Table 3, col. Ç
Table 3, col. Ç
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TABLE 1: Elastic waistband profiles of the invention
THE Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area(%) Section module (gf / mm) Interlacing pressure (psi) Front waistband 1 40 140 100% 0.6 79.2% 10.9 0.328 2 40 70 150% 0.6 85.3% 5.5 0.463 3 40 70 150% 0.6 85.3% 5.5 0.463 4 40 140 100% 0.6 79.2% 10.9 0.328 Back waistband 4 40 140 100% 0.6 79.2% 10.9 0.328 3 40 70 150% 0.6 85.3% 5.5 0.463 2 40 70 150% 0.6 85.3% 5.5 0.463 1 40 140 100% 0.6 79.2% 10.9 0.328 B Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area(%) Section module (gf / mm) Interlacing pressure (psi) Front waistband 1 50 70 175% 0.5 82.4% 6, 6 0.386 2 50 70 175% 0.5 82.4% 6, 6 0.386 3 50 70 175% 0.5 82.4% 6, 6 0.386 4 50 70 175% 0.5 82.4% 6, 6 0.386 Back waistband 4 50 70 175% 0.5 82.4% 6, 6 0.386 3 50 70 175% 0.5 82.4% 6, 6 0.386 2 50 70 175% 0.5 82.4% 6, 6 0.386 1 50 70 175% 0.5 82.4% 6, 6 0.386 Ç Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area(%) Section module (gf / mm) Interlacing pressure (psi) Front waistband 1 30 70 200% 0.8 89, 0% 4, 1 0.618 2 20 210 150% 1, 1 86, 1% 8.9 0.490 3 30 70 200% 0.8 89, 0% 4, 1 0.618 4 30 70 200% 0.8 89, 0% 4, 1 0.618 Back waistband 4 30 70 200% 0.8 89, 0% 4, 1 0.618 3 30 70 200% 0.8 89, 0% 4, 1 0.618 2 30 70 200% 0.8 89, 0% 4, 1 0.618 1 30 210 150% 1, 1 86, 1% 8.9 0.490
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TABLE 2: Elastic profiles of the side panel / flap of the invention
THE Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area(%) Section module (gf / mm) Interlacing pressure (psi) 1 30 140 125% l, o 87.5% 6, 6 0.546 2 30 140 125% 0.8 84.4% 8.2 0.437 3 30 140 125% 1.0 87.5% 6, 6 0.546 4 30 140 125% 1.0 87.5% 6, 6 0.546 B Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area(%) Section module (gf / mm) Interlacing pressure (psi) 1 60 70 125% 0.5 82.4% 6, 6 0.386 2 60 70 125% 0.5 82.4% 6, 6 0.386 3 60 70 125% 0.5 82.4% 6, 6 0.386 4 60 70 125% 0.5 82.4% 6, 6 0.386 Ç Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area(%) Section module (gf / mm) Interlacing pressure (psi) 1 15 210 165% 2.0 92.4% 4, 9 0. 892 2 15 210 165% 1, 1 86, 1% 8.9 0.490 3 15 210 165% 2.0 92.4% 4, 9 0. 892 4 15 210 165% 2.0 92.4% 4, 9 0. 892
TABLE 3: Elastic waistband profiles of the present invention
THE Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area(%) Section module (gf / mm) Interlacing pressure (psi) 1 40 111 100% 0.6 81.5% 8.7 0.368 B Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area(%) Section module (gf / mm) Interlacing pressure (psi) 1 50 90 110% 0.5 80.0% 8.4 0.341
Ç
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Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area(%) Section module (gf / mm) Interlacing pressure (psi) 1 35 120 200% 0.7 83.5% 8, 0 0.413
TABLE 4: Cudd elastic profiles of the invention
THE Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area (%) Section module (gf / mm) Interlacing pressure (psi) Inner 50 30 200% 0.5 88.5% 2.8 0.590 Outer 50 70 200% 0.5 82.4% 6, 6 0.386 B Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area(%) Section module (gf / mm) Interlacing pressure (psi) Inner 25 70 170% 0.5 82.4% 6, 6 0.386 Outer 25 140 200% 1.0 87.5% 6, 6 0.546 Ç Section Number of rubber bands Medium Dtex Medium pre-stretch Average wire spacing (mm) Open area(%) Section module (gf / mm) Interlacing pressure (psi) Inner 25 140 85% 0.5 75, 1% 13, 1 0.273 Outer 25 140 200% 1.0 87.5% 6, 6 0.546
Table 5: Elastomeric laminate of the invention and comparison with the prior art
Product Average wire spacing (mm) Section module (gf / mm) Cantilever bending (mm) Graphic distortion ratio Estimated average Dtex Average Fiber / Yarn Currently marketed product 1 (Baby) 8.5 6, 7 28.96 5.0 940 56
Petition 870190054457, of 06/13/2019, p. 105/194
84/133
Currently marketed product 2 (Baby) 5, 2 5, 6 38.06 4.7 625 55 Currently marketed product 3 (Baby) 5, 3 3, 9 35.27 4.0 450 56 Currently marketed product 4 (Baby) 4, 8 5, 4 29, 15 5.0 550 56 Currently marketed product 5 (Baby) 6, 8 3, 4 36, 87490 43 Currently sold product 6 (Baby) 3, 6 6, 9 25, 95525 43 Elastomeric laminate of the invention 120 0.5 7, 9 24.67 1.0 85 5 Elastomeric laminate of the invention 150 0.5 7, 9 23, 1385 5 Elastomeric laminate of the UB invention 0.5 7, 9 85 5 Currently marketed product 7 (Baby) 5, 6 5, 2 620 42 Currently sold product 8 (Baby) 8.3 2, 9 510 43
Table 6: Elastomeric laminate of the invention and comparison with the prior art
Product Calibrate0 gf / mm (mm) Calibrate3 gf / mm (mm) Gauge retention value a3 gf / mm (%) Calibrate7 gf / mm (mm) Gauge retention value at 7 gf / mm (%) Currently marketed product 1 (Baby) 2, 8 2.4 84 1.8 65 Currently marketed product 2 (Baby) 4.5 2.4 54 1, 1 23 Currently marketed product 3 (Baby) 3, 4 3.0 89 2.5 75 Currently product 2.4 2.2 92 1.9 80
Petition 870190054457, of 06/13/2019, p. 106/194
85/133
marketed 4 (Baby)Currently marketed product 5 (Baby) 2.4 1.9 81 1.0 40 Currently sold product 6 (Baby) 1.4 1.3 90 0.9 65 Elastomeric laminate of the invention 120 1.2 1, 1 90 1, 1 86 Currently marketed product 7 (Baby) 1, 9 1.7 89 1, 1 58 Currently sold product 8 (Baby) 0, 9 0.3 38 0.3 32
Petition 870190054457, of 06/13/2019, p. 107/194
Table 7: Elastomeric laminate of the invention and comparison with the prior art
Product Roughness frequency (1 / mm) Roughness wavelength (mm) Percentage of contact area 100 pm (%) Percentage of contact area 200 pm (%) Percentage of contact area 300 pm (%) Height of2 to 98% (mm) Currently marketed product 1 (Baby) 0.288 3.47 9, 8 19, 1 27.3 2,667 Currently marketed product 2 (Baby) 0.210 4.77 7 15, 8 24.6 3,092 Currently marketed product 3 (Baby) 0.210 4.77 6.5 16, 1 24.7 2,292 Currently marketed product 4 (Baby) 0.459 2.18 5.3 11, 6 19 2,260 Currently marketed product 5 (Baby) 0.249 4, 02 6.2 14, 9 24.4 1,841 Currently sold product 6 (Baby) 0.524 1.91 7.3 16.2 26, 9 1,619 Elastomeric laminateof the invention 120 0.616 1.62 19.7 53, 1 80.5 0.614 Elastomeric laminateof the invention 150 0.721 1.39 17, 1 43 67.9 0.503 Elastomeric laminate of the UB invention 0.367 2.73 20.6 32.7 40.8 1,286 Currently marketed product 7 (Baby) 0.315 3, 18 12.2 26.2 38.6 1,714 Currently sold product 8 (Baby) 0.341 2.93 9.4 18, 9 26, 9 1,661
86/133
Petition 870190054457, of 06/13/2019, p. 108/194
Table 8: Elastomeric laminate of the invention and comparison with the prior art
Product Interlacing pressure (psi) Air permeability 0 gf / mm (m3 / m2 / min) Air permeability 3 gf / mm (m3 / m2 / min) Air permeability 7 gf / mm (m3 / m2 / min) Water vapor permeability rate (g / m2 / 24 h) Open Area (%) Currently marketed product 1 (Baby) 1. 578 75 104 109 5279 95.7% Currently marketed product 2 (Baby) 1, 344 43 64 70 5021 94.9% Currently marketed product 3 (Baby) 1,626 48 68 70 4568 95.8% Currently marketed product 4 (Baby) 1.323 69 121 110 4616 94.9% Currently marketed product 5 (Baby) 1.987 55 83 86 4654 96.6% Currently sold product 6 (Baby) 1.001 111 146 146 5234 93.2% Elastomeric laminate of the invention 120 0.351 40 58 58 4684 80.6% Elastomeric laminate of the invention 150 0.351 4670Elastomeric laminate of the UB invention 0.351 88 105 91 4586 80.6% Currently marketed product 7 (Baby) 1.451 120 100 9295.3% Currently sold product 8 (Baby) 2.368 91 92 8597, 1%
87/133
Petition 870190054457, of 06/13/2019, p. 109/194
88/133 [0184] Tables 5 to 8 illustrate combinations of structural parameters made possible by the elastomeric laminates of the invention that cannot be performed by elastic structures of the prior art or products currently marketed. For example, although the elastomeric laminate of the invention of the present disclosure in the Tables has a section modulus of 7.9 gf / mm, higher than any of the prior art references and the elastomeric laminate of the invention also has the most intertwining pressure 0.35 psi low. The elastomeric laminates of the invention also have a very smooth surface that provides a higher percentage of contact area than any other prior art product in the Tables above and the higher roughness frequency, all while providing the unique combination of low caliber ( fineness) and high gauge retention value. All of these benefits of the elastomeric laminate of the invention are derived from a lower mean dtex than any of the prior art references, combined with the lower average wire spacing than any of the prior art references.
Absorbent article sections [0185] The components of absorbent articles comprising 302 elastomeric laminates can be sectioned to enable measurement and detailed characterization of the structure. The waistband 122 (see Figures 3B, 4 and 10), the waist limiter 123 (see Figure 9), the internal leg clamp 150, the external leg clamp 140 and the transverse barrier 165 all comprise 1 section. With regard to waistband 122,
Petition 870190054457, of 06/13/2019, p. 110/194
89/133 waist limiter 123, to the internal leg clamp 150, to the external leg clamp 140 and to the transverse barrier 165 the section is defined as the region arranged between, and including, the most distal elastic and the most proximal elastic.
[0186] Other components such as chassis 200, top layer 124 (see Figures 7A and 7C), bottom layer 125 (see Figures 7C and 7D), side panel 330 (see Figure 3B), flap panel 530 ( see Figures 9 and 10) and the waistband panel 430 (see Figures 7 and 7A) comprise all the multiple sections, as described here. With respect to side panel 330, flap panel 530 and waistband 430, the portion of the component to be sectioned is defined as the region between, and including, the most distal elastic of the elastomeric laminate 302 and the most proximal elastic of the elastomeric laminate 302. The region is defined by a first line extending parallel to the lateral geometric axis 44 and passing through the most distal point of the most distal elastic and a second line extending parallel to the lateral geometric axis and passing through the most proximal point of the most proximal elastic. For each of these elements, the region is then divided into 4 equal sections, defined by three lines arranged parallel to the lateral geometric axis 44 and arranged at 25%, 50% and 75% of the distance between the first line and the second line. The region comprises a first section which includes the most distal elastic, a fourth section which includes the most proximal elastic, a second section disposed adjacent to the first section and a third section disposed between the second section and the fourth section.
Petition 870190054457, of 06/13/2019, p. 111/194
90/133 [0187] In relation to the chassis 200, the upper layer 124 (see Figures 7A and 7C) and the lower layer 125 (see Figure 7C) in which the elastics 316 of the elastomeric laminate 302 extend in a substantially longitudinal orientation, the portion of the component to be sectioned is defined as the region disposed between, and including, the most distal elastic of the elastomeric laminate 302 on a first side of the longitudinal geometric axis 42 and the most distal elastic of the elastomeric laminate 302 on a second side of the axis longitudinal geometric 42. The region is defined by a first line extending parallel to the longitudinal geometric axis 42 and passes through the most distal point of the most distal elastic on a first side of the longitudinal geometric axis 42 and a second line extending parallel to the longitudinal geometric axis 42 and passes through the most distal point of the most distal elastic on a second side of longitudinal geometric axis 42. For each one of these elements, the region is then divided into 4 equal sections, defined by three lines arranged parallel to the longitudinal geometric axis 42 and arranged at 25%, 50% and 75% of the distance between the first line and the second line. The region comprises a first section which includes the most distal elastic on the first side of the longitudinal geometric axis, a fourth section which includes the most distal elastic on the second side of the longitudinal geometric axis, a second arranged section adjacent to the first section and a third arranged section between the second section and the fourth section.
[0188] Regarding chassis 200, top layer 124 and bottom layer 125 (see Figure 7D) in
Petition 870190054457, of 06/13/2019, p. 112/194
91/133 which elastics 316 of elastomeric laminate 302 extend in a substantially lateral orientation, the portion of the component to be sectioned is defined as the region disposed between, and including, the most distal elastic of elastomeric laminate 302 on a first side the lateral geometric axis 44 and the most distal elastic of the elastomeric laminate 302 on a second side of the lateral geometric axis 44. The region is defined by a first line extending parallel to the lateral geometric axis 44 and passing through the most distal point of the most distal elastic on a first side of the lateral geometric axis 44 and a second line extending parallel to the lateral axis 44 and passing through the most distal point of the most distal elastic on a second side of the lateral geometric axis 44. For each of these elements, the region is then divided into 4 equal sections, defined by three lines arranged parallel to the lateral geometric axis 44 and arranged in 25%, 50% and 75% of the distance between the first line and the second line. The region comprises a first section which includes the most distal elastic on the first side of the lateral geometric axis, a fourth section which includes the most distal elastic on the second side of the lateral geometric axis, a second arranged section adjacent to the first section and a third arranged section between the second section and the fourth section.

权利要求:
Claims (28)
[1]
1. Absorbent article, comprising:
a chassis comprising an upper layer, a lower layer and an absorbent core disposed between the
Petition 870190054457, of 06/13/2019, p. 113/194
92/133 top layer and bottom layer;
an elastomeric laminate that forms at least a portion of the article components selected from the group consisting of a waistband, side panel, flap panel, chassis, top layer, bottom layer and combinations thereof;
the elastomeric laminate comprising a first substrate layer and a second substrate layer and a plurality of elastics arranged between the first substrate layer and the second substrate layer;
the plurality of elastics comprising a) from about 40 to about 1000 elastic threads, b) an average thread spacing in the range of about 0.25 mm to
fence in 4 mm, c) one average dtex in the about 10 fence in 500 and d) one medium pre-stretch in the range in fence in 50% about in 400%; being what The first substrate layer and The
second layer of substrate have a base weight in the range of about 6 grams per square meter to about 30 grams per square meter;
being what The laminate elastomeric has an percentage of area in contact from at least one among: The) bigger than about of 11 o, o o d 100 pm, b) greater than about 28 o, o o d
200 pm and c) greater than about 51% at 300 pm; and the elastomeric laminate having a height value of 2% to 98% of <1.6 mm.
[2]
Absorbent article according to claim 1, the plurality of elastics comprising from about 100 to about 650 elastic threads.
Petition 870190054457, of 06/13/2019, p. 114/194
93/133
[3]
Absorbent according to any of the preceding claims, the plurality of elastics comprising an average yarn spacing in the range of about 0.5 mm to about 3.0 mm.
[4]
Absorbent article according to any of the preceding claims, the plurality of elastics comprising an average dtex in the range of about 30 to about 400.
[5]
5. Absorbent article according to any of the preceding claims, the plurality of elastics comprising an average pre-stretch in the range of about 75% to about 300%.
[6]
6. Absorbent article according to any of the preceding claims, the elastomeric laminate having an average pressure under wire in the range of about 0.1 psi to about 1 psi.
[7]
7. Absorbent article according to any of the preceding claims, with the elastomeric laminate having an air permeability of at least one of: a) greater than about 40 cubic meters / square meter / minute of air permeability at 0 gf / mm (without extension); b) greater than about 60 cubic meters / square meter / minute of air permeability at 3 g f / mm (slight extension); and c) greater than about 80 cubic meters / square meter / minute of air permeability at 7 gf / mm (moderate length).
[8]
8. Absorbent article according to any of the preceding claims, the elastomeric laminate having a water vapor permeability rate greater than about 4000 g / m2 / 24 h.
Petition 870190054457, of 06/13/2019, p. 115/194
94/133
[9]
9. Absorbent article according to any of the preceding claims, the elastomeric laminate having a caliber of at least one of: a) from about 0.5 mm to about 4 mm in caliber at 0 gf / mm (without extension); b) from about 60% to about 95% of gauge retention value at 3 gf / mm (slight extension); and c) from about 40% to about 90% of gauge retention value at 7 gf / mm (moderate extent).
[10]
10. Absorbent article according to any of the preceding claims, the laminate having a cantilever bending of less than about 40 mm.
[11]
11. Absorbent article according to any of the preceding claims, the elastomeric laminate having a roughness frequency in the range of about 0.2 mnf ¹ to about 1 mnf ¹ and a wavelength of roughness in the range of about from 0.5 mm to about 5 mm.
[12]
Absorbent article according to any of the preceding claims, the plurality of elastics comprising from about 200 to about 500 elastic threads.
[13]
13. Absorbent according to any of the preceding claims, the plurality of elastics comprising an average spacing of yarn in the range of about 1 mm to about 2.5 mm.
[14]
An absorbent article according to any of the preceding claims, the plurality of elastics comprising an average dtex in the range of about 50 to about 350.
[15]
15. Absorbent article, according to any of the
Petition 870190054457, of 06/13/2019, p. 116/194
95/133 previous claims, the plurality of elastics comprising an average pre-stretching in the range of about 125% to about 250%.
[16]
An absorbent article according to any of the preceding claims, the elastomeric laminate having an average pressure under wire in the range of about 0.2 psi to about 0.9 psi.
[17]
17. Absorbent article according to any of the preceding claims, the elastomeric laminate having an air permeability of at least one of: a) greater than about 50 cubic meters / square meter / minute of air permeability at 0 gf / mm (without extension); b) greater than about 75 cubic meters / square meter / minute of air permeability at 3 gf / mm (slight extension); and c) greater than about 100 cubic meters / square meter / minute of air permeability at 7 gf / mm (moderate extension).
[18]
18. Absorbent article according to any of the preceding claims, the elastomeric laminate having a water vapor permeability rate greater than about 5000 g / m2 / 24 h.
[19]
19.
Absorbent article according to any of the preceding claims, the elastomeric laminate having a caliber of at least one of: a) from about 0.75 mm to about 3 mm in caliber at 0 gf / mm (without extension); b) from about 70% to about 90% of gauge retention value at 3 gf / mm (slight extension); and c) from about 55% to about 75% of gauge retention value at 7 gf / mm (moderate extent).
[20]
20. Absorbent article, according to any
Petition 870190054457, of 06/13/2019, p. 117/194
96/133 of the preceding claims, the elastomeric laminate having a cantilever bending of less than about 30 mm.
[21]
21. Absorbent article according to any of the preceding claims, the elastomeric laminate having a roughness frequency in the range of about 0.3 mnf ¹ to about 0.75 mnf ¹ and a wavelength of roughness in the range from about 0.75 mm to about 3.5 mm.
[22]
22. Absorbent article according to any of the preceding claims, the plurality of elastics comprising urea polyurethane.
[23]
23. Absorbent article according to any of the preceding claims, the plurality of elastics comprising a silicone oil coating.
[24]
24. Absorbent article according to any of the preceding claims, the plurality of elastics being disposed between and joined to the first and second layer of substrate through an adhesive.
[25]
25. Absorbent article according to claim 22, the adhesive being selected from the group consisting of styrenic block copolymers, polyolefins, vinyl ethylene acetates, polyurethanes, ethylene-propylene copolymers, propylene-ethylene copolymers, polymers in polyolefin block, polyolefin homopolymers, polyesters, polyamides, silicones, cyanoacrylics, acrylics, butyl rubber and combinations thereof.
[26]
26. Absorbent article according to any of the preceding claims, with the plurality of
Petition 870190054457, of 06/13/2019, p. 118/194
Elastic 97/133 consists essentially of polyurethane urea.
[27]
27. Absorbent article according to any of the preceding claims, the plurality of elastics consisting of urea polyurethane.
[28]
28. Method for producing the absorbent article according to any of the preceding claims, comprising the step of unrolling the plurality of elastics which are unrolled from a single bundle to form the elastomeric laminate.
Set of claiming examples 2
1. Absorbent article, comprising:
a chassis comprising an upper layer, a lower layer and an absorbent core disposed between the upper layer and the lower layer;
an elastomeric laminate that forms at least a portion of article components selected from the group consisting of a waistband, a waist limiter, an internal leg clamp, an external leg clamp, a cross barrier and combinations thereof;
the elastomeric laminate comprising a first substrate layer and a second substrate layer and a plurality of elastics arranged between the first substrate layer and the second substrate layer;
the plurality of elastics comprising from about 10 to about 400 elastic threads, an average thread spacing in the range of about 0.25 mm to about 4 mm, an average dtex in the range of about 10 to about 500, and an average pre-stretch in the range of about 50% to about 400%;
Petition 870190054457, of 06/13/2019, p. 119/194
98/133 the first substrate layer and the second substrate layer, each having a base weight in the range of about 6 grams per square meter to about 30 grams per square meter;
being what The laminate elastomeric has an percentage of area in contact from at least one among: The) bigger than about of 11 o, o o d 100 pm, b) greater than about 28 o, o o d
200 pm and c) greater than about 51% at 300 pm; and the elastomeric laminate having a height value of 2% to 98% of <1.6 mm.
Absorbent article according to claim 1, the plurality of elastics comprising from about 20 to about 225 elastic threads.
Absorbent article according to any of the preceding claims, the plurality of elastics comprising a mean spacing of yarn in the range of about 0.5 mm to about 3.0 mm.
Absorbent article according to any of the preceding claims, the plurality of elastics comprising an average dtex in the range of about 30 to about 400.
5. Absorbent article according to any of the preceding claims, the plurality of elastics comprising an average pre-stretch in the range of about 75% to about 300%.
6. Absorbent article according to any of the preceding claims, the elastomeric laminate having an average pressure under the wire in the range of about 0.1 psi to about 1 psi.
7. Absorbent article, according to any of the
Petition 870190054457, of 06/13/2019, p. 120/194
99/133 previous claims, with the elastomeric laminate having an air permeability of at least one of: a) greater than about 40 cubic meters / square meter / minute of air permeability at 0 gf / mm of (without extension) ; b) greater than about 60 cubic meters / square meter / minute of air permeability at 3 g f / mm (slight extension); and c) greater than about 80 cubic meters / square meter / minute of air permeability at 7 gf / mm (moderate length).
8. Absorbent article according to any of the preceding claims, the elastomeric laminate having a water vapor permeability rate greater than about 4000 g / m2 / 24 h.
9. Absorbent article according to any of the preceding claims, the elastomeric laminate having a caliber of at least one of: a) from about 0.5 mm to about 4 mm in caliber at 0 gf / mm (without extension); b) from about 60% to about 95% of gauge retention value at 3 gf / mm (slight extension); and c) from about 40% to about 90% of gauge retention value at 7 gf / mm (moderate extent).
10. Absorbent article according to any of the preceding claims, the elastomeric laminate having a cantilever bending of less than about 40 mm.
11. Absorbent article according to any of the preceding claims, the elastomeric laminate having a roughness frequency in the range of about 0.2 mnf ¹ to about 1 mnf ¹ and a wavelength of roughness in the range of about 0.5 mm to about
Petition 870190054457, of 06/13/2019, p. 121/194
100/133
5 mm.
Absorbent article according to claim 1, the plurality of elastics being
comprises of < about 30 to about 175 wires rubber bands. 13. Pad, according with any of claims previous, being what The plurality in
Elastics comprise an average thread spacing in the range of about 1 mm to about 2.5 mm.
An absorbent article according to any of the preceding claims, the plurality of elastics comprising an average dtex in the range of about 50 to about 350.
An absorbent article according to any one of the preceding claims, the plurality of elastics comprising an average pre-stretching in the range of about 125% to about 250%.
An absorbent article according to any of the preceding claims, the elastomeric laminate having an average pressure under wire in the range of about 0.2 psi to about 0.9 psi.
17. Absorbent article according to any of the preceding claims, the elastomeric laminate having an air permeability of at least one of: a) greater than about 50 cubic meters / square meter / minute of air permeability at 0 gf / mm (without extension); b) greater than about 75 cubic meters / square meter / minute of air permeability at 3 gf / mm (slight extension); and c) greater than about 100 cubic meters / square meter / minute of air permeability at 7 gf / mm (moderate extension).
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101/133
18. Article / pad, according any of claims previous ores, being that laminate elastomeric have a rate permeability greater water vapor what about 5000 g / m2 / 24 H. 19. Article / pad , according with any of claims previous, being that the laminate elastomeric have a caliber at least one of: in about 0.75 mm to about 3 mm . caliber a 0 gf / mm (without extension) ; B) about 70% to about 90% of value in retention caliber at 3 gf / mm (slight extension to) ; and c) in about 55% about 75% of value of retention in
gauge at 7 gf / mm (moderate extension).
20. Absorbent article according to any of the preceding claims, the elastomeric laminate having a cantilever bending of less than about 30 mm.
21. Absorbent article according to any of the preceding claims, the elastomeric laminate having a roughness frequency in the range of about 0.3 mnf ¹ to about 0.75 mnf ¹ and a wavelength of roughness in the range from about 0.75 mm to about 3.5 mm.
22. Absorbent article according to any of the preceding claims, the plurality of elastics comprising urea polyurethane.
23. Absorbent article according to any of the preceding claims, the plurality of elastics comprising a silicone oil coating.
24. Absorbent article according to any of the preceding claims, with the plurality of
Petition 870190054457, of 06/13/2019, p. 123/194
102/133 elastic bands are arranged between and bonded to the first and second layer of substrate through an adhesive.
25.
Absorbent article according to claim 22, the adhesive being selected from the group consisting of styrenic block copolymers, polyolefins, vinyl ethylene acetates, polyurethanes, ethylene-propylene copolymers, propylene ethylene copolymers, polyolefin block polymers, homopolymers of polyolefin, polyesters, polyamides, silicones, cyanoacrylics, acrylics, butyl rubber and combinations thereof.
26. Absorbent article according to any of the preceding claims, the plurality of elastics consisting essentially of polyurethane urea.
27. Absorbent article according to any of the preceding claims, the plurality of elastics consisting of urea polyurethane.
28.
Method for producing the absorbent article according to any of the preceding claims, characterized in that it comprises the step of unrolling the first plurality of elastics which are unwound from a single bundle to form the elastomeric laminate.

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法律状态:
2021-10-13| B350| Update of information on the portal [chapter 15.35 patent gazette]|

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2022-03-03| B06W| Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]|

优先权:

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申请号 | 申请日 | 专利标题

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US201662436589P| true| 2016-12-20|2016-12-20|

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US201762483965P| true| 2017-04-11|2017-04-11|

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US201762553538P| true| 2017-09-01|2017-09-01|

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US201762553149P| true| 2017-09-01|2017-09-01|

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US201762553171P| true| 2017-09-01|2017-09-01|

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US201762581278P| true| 2017-11-03|2017-11-03|

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PCT/US2017/067230|WO2018118870A1|2016-12-20|2017-12-19|Beamed elastic laminate properties|

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