Pant-like Disposable Absorbent Articles with a Releasable Line of Weakness and a Fastener

专利摘要:
The panty-type disposable absorbent article includes an absorbent chassis, a pair of opposite side panels, one or more weak lines, and one or more fasteners. The absorption chassis defines a pair of lateral edges that face in the lateral direction and a pair of waist edges that face in the longitudinal direction. Each opposing lateral panel defines a first lateral margin that is permanently attached to the lateral edge of the absorbent chassis in one waist region of the absorbent article to provide a front permanent bond. The opposing lateral panel also defines a second lateral margin that is permanently attached to the lateral edges of the absorbent chassis in the other waist region of the absorbent article to provide a rear permanent engagement. The fasteners and weak lines are located in one of the lateral panels, and the weak lines separate the fasteners from one of the permanent couplings. The fastener is configured to be exposed after the weak line is broken and used to refasten the at least one lateral panel to the opposite waist region of the absorbent article.
公开号:KR20030044069A
申请号:KR10-2003-7006124
申请日:2001-11-01
公开日:2003-06-02
发明作者:제니퍼 엘리자베쓰 포즈니악；티모씨 제임스 블렌케；카산드라 엘리자베쓰 모리스；토마스 해롤드 로에슬러；조디 도로씨 서프라이즈；로버트 유진 보그트
申请人:킴벌리-클라크 월드와이드, 인크.；
IPC主号:

专利说明:

Pant-like Disposable Absorbent Articles with a Releasable Line of Weakness and a Fastener}
[2] Absorbent articles, such as diapers, training panties or incontinence garments, are desired to provide a snug and comfortable fit around the wearer and to contain body secretions. In addition, it is desirable that such absorbent articles can be conveniently and cleanly removed from the wearer after being soiled without undesirably soiling the surrounding area, such as the caregiver or wearer's clothing. In some cases, it is also desirable that such absorbent articles can be pulled up and down the wearer's hips so that the wearer or caregiver can easily pull on and remove the absorbent article if it is not soiled. In this case, it may also be desirable for the caregiver or wearer to be able to apply the absorbent article to a wearer who is lying down similar to a conventional diaper. Such absorbent articles can assist in training the child's toilet.
[3] Conventional diapers are not provided pre-fastened, but are typically detachably connected around the wearer's hips in use by conventional fasteners such as adhesive tape fasteners or hook and loop fasteners. Waist and rear waist. For example, conventional fasteners are complementary, such as taping panels, typically located on the outer surface of the outer cover of the diaper with adhesive tape tabs located at the outermost corner of the diaper in the rear waist region of the diaper and the front waist of the diaper. A pair of fasteners, such as fasteners, was included. In this form, the diaper is secured around the wearer's waist by placing the diaper between the wearer's legs while the wearer is lying down and attaching the adhesive tape tab to the taping panel to secure the back waist of the diaper to the front waist. . Such conventional diapers are easy to fasten around the wearer and to be removed from the wearer after use without undesirably contaminating the caregiver. However, these conventional diapers are not provided in a panty-shaped pre-tightened form and are therefore not configured to be pulled up and down the wearer's hips when the fastener is attached.
[4] Several attempts have been made to provide absorbent articles that effectively contain body secretions and can be pulled up and down the wearer's hips. For example, some conventional absorbent articles, such as conventional training pants, included integral side panels that connect the front waist and back waist of the absorbent article. The lateral panel is made to be stretchable to allow the waist opening of the absorbent article to stretch as needed so that the absorbent article can be pulled up and down the wearer's hips. In addition, such side panels have been designed so that the training pant can be torn to remove it from the wearer after it becomes dirty.
[5] However, many of these attempts have not been completely satisfactory. For example, an absorbent article, such as a training pant, may stretch enough to be pulled up and down the wearer's hips, but may not necessarily achieve a compliant fit that fits the wearer. Often, such training pant loosely fits the wearer's waist, which can lead to undesirable consequences of leakage. Thus, many of these absorbent articles did not contain body secretions as effectively as conventional diaper shaped articles that could be adjusted to achieve a more compliant fit to the wearer. In addition, absorbent articles with integral side panels, such as conventional training panties, have not always been completely satisfactory to check for soiling and to remove soiled absorbent articles. For example, the lateral panels were difficult to tear when attempting to remove the absorbent article from the wearer's waist instead of pulling the absorbent article down the wearer's hips. Finally, most of these conventional training panties did not provide the selectivity that could be applied as conventional diapers.
[6] Thus, despite attempts to develop improved absorbent articles, there is still a need for absorbent articles that can effectively provide the benefits of both conventional training panties and conventional diapers. That is, they are compliant to the wearer to effectively contain body secretions, can be pulled up and down the hips and hips of the wearer without opening, are easily adhered to the wearer, are conveniently and cleanly removed from the wearer, and are easy to inspect by the caregiver There is a need for an absorbent article to help determine whether this is dirty. In addition, such a panty-type disposable absorbent article needs to be applicable to a wearer lying down like a conventional diaper.
[7] Summary of the Invention
[8] In response to the difficulties and problems discussed above, a novel panty-type disposable absorbent article with one or more weak lines and one or more fasteners has been developed. In one aspect, the invention relates to a panty-type disposable absorbent article extending between the front waist region, the back waist region, the waist regions to define the crotch region, longitudinal and transverse directions connecting them. The absorbent article includes an absorbent chassis that defines an absorbent core, an outer surface, an inner surface opposite the outer surface, a pair of laterally opposed side edges and a pair of longitudinally opposite waist edges. The absorbent article also extends laterally outwardly from the lateral edges of the absorbent chassis and connects the front waist region to the rear waist region to define a pair of opposing pairs that define the waist opening and the pair of leg openings of the panty-shaped disposable absorbent article. Side panels. Each side panel defines a first side margin that is permanently attached to the side edges of the absorbent chassis in the front waist region of the absorbent article to provide a pair of front permanent engagement portions. Each side panel also defines a second side margin that is permanently attached to the lateral edges of the absorbent chassis in the rear waist region to provide a pair of rear permanent engagement portions. The absorbent article also includes a fastener located on one of the lateral panels. The absorbent article also includes a weak line located on one side panel that separates the fastener from either the front or rear permanent engagement portion. The fastener is exposed only after the weak line is broken and is configured to refasten one side panel of the absorbent article to the outer surface of the absorbent chassis in either the front waist region or the back waist region of the absorbent article.
[9] In another aspect, the present invention relates to a panty-type disposable absorbent article extending between the front waist region, the back waist region, the waist regions to define the crotch region, longitudinal and transverse directions connecting them. The absorbent article includes an absorbent chassis that defines an absorbent core, an outer surface, an inner surface opposite the outer surface, a pair of laterally opposed side edges and a pair of longitudinally opposite waist edges. The absorbent article also includes a laterally opposite pair of stretchable back panels that are permanently attached to the lateral edges of the absorbent chassis in the rear waist region of the absorbent article to provide a pair of rear permanent engagement portions. The absorbent article also includes a laterally opposite pair of stretchable front panels that are permanently attached to the lateral edges of the absorbent chassis in the front waist region of the absorbent article to provide a pair of front permanent bonds. In addition, the front and rear panels of each lateral edge of the absorbent chassis are permanently connected together at the lateral seams to provide a pair of lateral permanent joints, defining a waist opening and a pair of leg openings to provide a panty-type disposable absorbent article. do. The absorbent article also includes a fastener located on each front panel. The absorbent article also includes a weak line in each front panel that separates the fastener from the front permanent engagement portion. The fastener is exposed only after the weak line is broken and is configured to refasten the front panel to the outer surface of the absorbent chassis in the front waist region of the absorbent article.
[10] In another aspect, the present invention relates to a panty-type disposable absorbent article extending between the front waist region, the back waist region, the waist regions to define the crotch region, longitudinal and transverse directions connecting them. The absorbent article includes an absorbent chassis that defines an absorbent core, an outer surface, an inner surface opposite the outer surface, a pair of laterally opposed side edges and a pair of longitudinally opposite waist edges. The absorbent article also includes a laterally opposite pair of stretchable back panels that are permanently attached to the lateral edges of the absorbent chassis in the rear waist region of the absorbent article to provide a pair of rear permanent engagement portions. The absorbent article also includes a laterally opposite pair of stretchable front panels that are permanently attached to the lateral edges of the absorbent chassis in the front waist region of the absorbent article to provide a pair of front permanent bonds. In addition, the front and rear panels of each lateral edge of the absorbent chassis are permanently connected together at the lateral seams to provide a pair of lateral permanent joints, defining a waist opening and a pair of leg openings to provide a panty-type disposable absorbent article. do. The absorbent article also includes a fastener positioned adjacent the lateral permanent engagement portion in each back panel. The absorbent article also includes a weak line located on each rear panel that separates the fastener from the lateral permanent engagement. The fastener is exposed only after the weak line is broken and is configured to refasten the back panel to the front waist region of the absorbent article.
[11] The present invention advantageously provides a panty-type disposable absorbent article comprising a fastener and a weak line. In particular, the present invention provides a panty-type disposable absorbent article that can be reliably pulled up and down the wearer's hips to assist the wearer's stool training, similar to a conventional training pant. In addition, similar to conventional diapers, certain forms of the panty-shaped disposable absorbent articles of the present invention may advantageously be applied to and removed from a wearer similar to conventional diapers. In addition, the panty-type disposable absorbent articles of the present invention allow the caregiver to easily inspect them to help determine whether the article is dirty or similar to conventional diapers. As such, the present invention provides a dual use absorbent article that can function as both a panty-shaped absorbent article and a conventional diaper.
[12] In addition, the panty-type disposable absorbent article of the present invention provides a weak line that facilitates opening and removal of the panty-type disposable absorbent article. Thus, panty-type diapers are provided in the form of panties to maintain the shape of the panties, but in certain forms, the caregiver or wearer can easily open the absorbent article for use or removal as a conventional diaper if desired. The weak line also helps the wearer or caregiver identify where the panty-shaped absorbent article should be opened in order to allow the absorbent article to be used in its conventional form. In addition, after the weak lines have been opened, the open edges will maintain a clean appearance without being patchy, thereby providing a more satisfactory diaper appearance when the absorbent article is used in its conventional form. Finally, the fastener can be configured to be provided by other parts of the panty absorbent article or a combination thereof. Parts that can be used individually or in combination to provide fasteners include weak lines, stretchable side panels, and the like. Accordingly, the fastener of the present invention remains unobtrusive to the wearer while the panty-type absorbent article maintains the panty shape, but can be used by the wearer after the detachable coupling part is released. In addition, applying the fasteners to existing absorbent article locations eases manufacturing and reduces cost by reducing excess material.
[1] The present invention relates to disposable absorbent articles adapted to contain body secretions. More specifically, the present invention relates to a panty-type disposable absorbent article having one or more removable weak wires and fasteners.
[13] The invention will be more fully understood and further advantages will become apparent upon reference to the following detailed description of the invention and the accompanying drawings in which like reference numerals designate like elements. The drawings are only representative and are not intended to limit the scope of the appended claims.
[14] 1 representatively shows a perspective view of one example of a panty-type disposable absorbent article of the present invention.
[15] FIG. 2 representatively shows a front view of the panty-type disposable absorbent article of FIG. 1.
[16] 3 representatively shows a front plan view of an alternative form of absorbent article with weak lines and fasteners positioned at lateral seams.
[17] 4 is a plan view of the disposable absorbent article of FIG. 1 with the article permanently broken and unfolded and flattened with the surface of the article in contact with the wearer's clothing facing the viewer and partially cut to show the underlying shape; Representatively.
[18] 5A representatively shows a perspective view of a weak line and fastener adjacent the front permanent engagement portion.
[19] 5B representatively shows a perspective view of an alternative form of weak lines and fasteners adjacent to the front permanent engagement portion.
[20] 5C representatively illustrates a perspective view of another alternative form of weak lines and fasteners located on the front side panel.
[21] 5D representatively illustrates a perspective view of another alternative form of weak lines and fasteners adjacent to lateral permanent engagement.
[22] The present invention relates to a panty-type disposable absorbent article adapted to be worn adjacent to the wearer's body to absorb and contain various secretions released from the body. The panty-type absorbent article is adapted to fit snugly to the wearer's body to effectively contain body secretions while being able to be pulled up and down the wearer's hips and hips. In addition, the absorbent article includes one or more weak lines and one or more fasteners to be secured to the wearer's waist and removed directly from the wearer's waist and to easily inspect and determine whether it is dirty during use. As such, the panty-type disposable absorbent article of the present invention can function in a manner similar to conventional training panties when in the form of panties. In addition, in certain forms, the weak line can be opened and the fasteners used allow the disposable absorbent articles of the present invention to be used similar to conventional diapers. As used herein, "disposable" means an article intended to be discarded after limited use so that it is not laundered or otherwise restored for reuse.
[23] The panty-type disposable absorbent article of the present invention will be described with a disposable panty-type diaper article adapted to be worn around the lower torso of an infant. In particular, the panty type disposable absorbent article will be described with a panty type disposable diaper having a side panel, one or more weak lines, and one or more fasteners. It is to be understood that the articles and methods of the present invention may likewise be suitable for other types of absorbent articles, such as adult incontinence articles, training panties, feminine hygiene articles, other personal hygiene or health care garments, and the like.
[24] 1 representatively illustrates one example of the panty-type disposable diaper of the present invention, generally indicated at 20. 2 representatively illustrates a front view of the panty diaper of FIG. 1. 3 representatively illustrates a front view of an alternative form of the panty diaper 20. FIG. 4 representatively illustrates the panty diaper of FIG. 1 with the article permanently cut open to open and unfold, with the surface of the article in contact with the wearer's clothing facing the observer and partially cut away to show the underlying shape. As illustrated in FIG. 4, the diaper 20 extends between the anterior waist region 22, the posterior waist region 24, the anterior waist region 22 and the posterior waist region 24, and the crotch region connecting them. (26), the longitudinal direction 38 and the transverse direction 40 are defined.
[25] The illustrated panty diaper 20 includes an absorbent chassis 28 and a pair of laterally opposite side panels 48. Absorption chassis 28 includes a pair of laterally opposite side edges 30, a longitudinally opposite pair of waist edges 32, an inner surface 34 configured to contact the wearer, and the wearer's clothes in use. Define an outer surface 36 opposite the inner surface 34, configured to contact. As representatively illustrated in FIG. 4, the absorbent chassis 28 has an outer cover 42, a bodyside liner 44 connected therewith in a superimposed relationship on the outer cover 42, and an outer cover 42 and a bodyside. An absorbent core 46 positioned between the liner 44. The lateral panel 48 extends laterally outwardly and between each lateral edges of each of the opposing lateral edges 30 of the absorbent chassis 28 in the front waist region 22 and the back waist region 24.
[26] The front waist region 22 includes a portion of the diaper 20 positioned in front of the wearer when worn, and the rear waist region 24 includes a portion of the diaper 20 positioned behind the wearer when worn. The crotch region 26 of the diaper 20 includes a portion of the diaper 20 that, when worn, sits between the wearer's legs and covers the lower torso of the wearer. Lateral panel 48 includes a portion of a diaper that, when worn, is located in the lateral hip region of the wearer. The laterally opposite side edges 30 of the absorbent chassis 28 and the side panels 48 of the diaper 20 generally define leg openings, which can be curved. The waist edge 32 and the lateral panel 48 of the absorbent chassis 28 of the diaper 20 are configured to surround the wearer's waist when worn and to provide a waist opening that defines the waist circumference dimension when attached or fastened. do.
[27] As illustrated in FIGS. 1, 2 and 4, one or more of the lateral panels 48 of the panty diaper 20 include one or more weak lines 62 in combination with the fastener 60. The lateral panel 48 is permanently attached to the lateral edge 30 of the absorbent chassis 28 via a permanent bond 64 in either the waist region 22 or 24 to provide a permanent bond 76. . One or more weak lines 62 also provide an open method for using panty diapers in conventional form. The panty diaper 20 further includes one or more fasteners 60 positioned adjacent one or more weak lines 62. The fastener 60 is configured to be available after the weak line is opened. The illustrated diaper 20 of the present invention may further include an attachment panel 82 located on the outer surface 36 of the absorbent chassis 28 to which the fastener 60 is removable.
[28] Absorption chassis 28 is configured to contain and / or absorb body secretions released from the wearer. On the other hand, the side panel 48, permanent engagement portion 76 and fastener 60 are configured to keep the diaper 20 around the wearer's waist and provide a panty-like appearance. The diaper 20 may further include leg elastics 54, retention flaps 56, and waist elastics 58, as known to those skilled in the art. It should be appreciated that the individual parts of the diaper 20 may be optional depending on the intended use of the diaper 20.
[29] The panty diaper 20 can have a variety of suitable shapes. For example, in the open form as illustrated in FIG. 4, the diaper may be generally rectangular, T-shaped or nearly hourglass-shaped. In the embodiment shown, the diaper 20 is generally I-shaped in an unfastened form. Examples of diaper forms suitable for use in connection with the present application and other diaper parts suitable for use in diapers are registered in US Pat. No. 4,798,603, issued May 17, 1989 to Meyer et al., Incorporated herein by reference. ), US Patent 5,176,668 (Bernardin et al., Registered January 5, 1993), US Patent No. 5,176,672 (Brummer et al., Registered January 5, 1993), Proxmeyer (US Pat. No. 5,192,606, registered March 9, 1993) and Hanson et al., US Pat. No. 5,509,915, registered April 23, 1996. The various aspects and forms of the present invention can provide a unique combination of softness, body compliance, reduced erythema incidence on wearer skin, reduced skin hydration, improved body secretion content and improved aesthetics.
[30] The various parts of the diaper 20 are assembled to be integrated together using various types of suitable attachment means such as adhesives, sonic and thermal bonds or combinations thereof. In the embodiment shown, for example, the outer cover 42 and the bodyside liner 44 are assembled to each other and to the absorbent core 46 with an adhesive such as a hot melt pressure sensitive adhesive. The adhesive can be applied as a uniform continuous layer of adhesive, as a patterned layer of adhesive, as a sprayed pattern of adhesive, or as a separate line, spiral or dot in a line of adhesive. Alternatively, absorbent core 46 may be connected to outer cover 42 using conventional fasteners such as buttons, hook and loop fasteners, adhesive tape fasteners, and the like. Other parts of the diaper 20 can be connected together suitably using similar means. Likewise, other diaper parts, such as elastic members 54 and 58 and fastener 60, can be assembled to diaper 20 using the attachment mechanism. Preferably, most diaper parts are assembled together using ultrasonic bonding technology to reduce manufacturing costs.
[31] As representatively illustrated in FIGS. 1-4, the outer cover 42 of the absorbent chassis 28 of the panty diaper 20 may suitably be made of a material that is liquid permeable or liquid impermeable. The outer cover 42 is generally preferably formed from a material that is substantially liquid impermeable. Typical outer covers can be made from thin plastic films or other flexible liquid impermeable materials. For example, the outer cover 42 may be formed from a polyethylene film having a thickness of about 0.013 mm (0.5 mil) to about 0.051 mm (2.0 mil). If it is desired to provide a more cloth-like outer cover 42, the outer cover 42 may comprise a polyolefin film in which a nonwoven web, such as a spunbond web of polyolefin fibers, is laminated to the outer surface. For example, a spunbond web of polypropylene fiber may be thermally laminated to a stretch-thinned polypropylene film having a thickness of about 0.015 mm (0.6 mil). The polypropylene fiber has a thickness of about 1.5 to 2.5 denier per filament and its nonwoven web has a basis weight of about 17 grams per square meter (0.5 ounces per square yard). The outer cover 42 may further comprise bicomponent fibers such as polyethylene / polypropylene bicomponent fibers. Methods of forming such outer covers, such as fabrics, are known to those skilled in the art.
[32] In addition, the outer cover 42 may be formed of a woven or nonwoven fibrous web layer that is fully or partially structured or treated to impart the desired level of liquid impermeability to selected areas adjacent or proximate to the absorbent core 46. . Also, the outer cover 42 may optionally be made of a microporous “breathable” material that prevents liquid secretion from passing through the outer cover 42 while allowing vapor to escape from the absorbent body 28. For example, the outer cover 42 can include a vapor permeable nonwoven surface layer laminated to the microporous film. Suitable “breathable” outer cover materials are disclosed in US Pat. No. 5,695,868 to McCormack et al. And US Pat. No. 5,843,056 to Good et al., Incorporated December 1, 1998, incorporated herein by reference. Described. The outer cover 42 may also be an elastomeric material, such as stretch-thermal laminate (STL), neck-bonded laminate (NBL), or stretch-bonded laminate (SBL) material. Methods of making such materials are well known in the art and are described herein by Wisneski et al. US Pat. No. 4,663,220, registered May 5, 1987, Mormon. US Patent No. 5,226, 992 (registered July 13, 1993), and European Patent Application EP 0,217,032 (published April 8, 1987) to Taylor et al. In addition, the outer cover 42 may be embossed to provide an aesthetically pleasing appearance, or otherwise provided by a matte finish.
[33] As representatively illustrated in FIG. 4, the bodyside liner 44 exhibits a body-facing surface that is suitably soft, soft and non-irritating to the wearer's skin. In addition, the bodyside liner 44 may be less hydrophilic than the absorbent core 46 to provide the wearer with a relatively dry surface, and sufficiently porous to allow liquid permeability to allow liquid to penetrate easily through its thickness. Can be. Suitable bodyside liners 44 include a wide selection of web materials, such as porous foams, reticulated foams, perforated plastic films, natural fibers (eg wool or cotton fibers), synthetic fibers (eg poly Ester or polypropylene fibers), or a combination of natural and synthetic fibers. Suitably, the bodyside liner 44 is used to help isolate the wearer's skin from the liquid retained in the absorbent core 46.
[34] Various woven and nonwoven fabrics can be used for the bodyside liner 44. For example, the bodyside liner may consist of a meltblown or spunbonded web of polyolefin fibers. The bodyside liner may also be a bonded-carded web made of natural and / or synthetic fibers. The bodyside liner may be made of a material that is substantially hydrophobic, and the hydrophobic material may optionally be treated with a surfactant or otherwise processed to impart the desired level of wetting and hydrophilicity. In a particular embodiment of the invention, the bodyside liner 44 is a polypropylene spunbond consisting of about 2.8 to 3.2 denier fibers formed from a web having a basis weight of about 20 grams per square meter and a density of about 0.13 grams per cubic centimeter. Contains nonwovens. The fabric can be surface treated with about 0.3% by weight of a surfactant commercially available from Hodgson Textile Chemicals, Inc. under the brand name AHCOVEL Base N-62. The surfactant may also be applied by any conventional means such as spraying, printing, brush coating or the like. Surfactants may be applied to the entire bodyside liner 44 or may be selectively applied to provide greater wettability of the zone to a particular zone of the bodyside liner 44, such as a central zone along the longitudinal centerline of the diaper. have. The bodyside liner 44 may also include application of a lotion or treatment configured to treat or be delivered to the wearer's skin.
[35] The absorbent core 46 of the panty diaper 20 representatively illustrated in FIG. 4 is suitably a matrix of hydrophilic fibers, such as a web of cellulose fluff, mixed with particles of a superabsorbent material, commonly known as a superabsorbent material. It may include. In a particular embodiment, the absorbent core 46 comprises a matrix of cellulose fluff, such as wood pulp fluff, and superabsorbent hydrogel forming particles. Wood pulp fluff can be replaced with synthetic polymer meltblown fibers or can be replaced with a combination of meltblown fibers and natural fibers. The superabsorbent particles may be mixed substantially homogeneously with the hydrophilic fibers, or may be mixed heterogeneously. In addition, the fluff and superabsorbent particles may optionally be placed in the desired zone of the absorbent core 46 to better contain and absorb body secretions. In addition, the concentration of superabsorbent particles may vary in the thickness direction of the absorbent core 46. Alternatively, the absorbent core 46 may include a stack of fibrous webs and other suitable means for retaining the superabsorbent material in localized areas.
[36] Absorbent core 46 can have any number of shapes. For example, the absorbent core can be rectangular, I-shaped or T-shaped. In general, the absorbent core 46 is preferably narrowed in the crotch region of the diaper 20. It has been found that the absorbent core 46 of the present invention is particularly useful when the width dimension in the crotch region 26 is from about 2.5 to about 12.7 cm (1.0 to about 5.0 inches), preferably about 7.6 cm (3.0 inches) or less. lost. The narrow crotch width dimension of the absorbent core 46 allows the absorbent chassis 28 to fit better between the wearer's legs. The size and absorbent capacity of the absorbent core 46 must be compatible with the liquid load imparted by the intended wearer's size and the intended use of the absorbent article.
[37] Superabsorbent materials can be selected from natural, synthetic, and modified natural polymers and materials. The superabsorbent material may be an inorganic material such as silica gel, or an organic compound such as a crosslinked polymer. The term "crosslinked" means any means that can effectively make a material that is normally water soluble to be substantially water insoluble but water swellable. Such means can include, for example, physical entanglement, crystalline domains, covalent bonds, ion complexes and associations, hydrophilic associations such as hydrogen bonds, and hydrophobic associations or van der Waals forces.
[38] Examples of superabsorbent synthetic polymer materials include alkali metal and ammonium salts of poly (acrylic acid) and poly (methacrylic acid), poly (acrylamide), poly (vinyl ether), maleic anhydride and copolymers of vinyl ether and alpha-olefins. , Poly (vinyl pyrrolidone), poly (vinyl morpholinone), poly (vinyl alcohol) and mixtures and copolymers thereof. Further polymers suitable for use in the absorbent core are natural and modified natural polymers such as hydrolyzed acrylonitrile-grafted starch, acrylic acid grafted starch, methyl cellulose, carboxymethyl cellulose, hydroxypropyl cellulose And natural gums such as alginate, xanthan gum, locust bean gum and the like. In addition, mixtures of natural and fully or partially synthetic absorbent polymers may also be useful in the present invention. Such superabsorbent materials are well known to those skilled in the art and are widely commercially available. Examples of superabsorbent polymers suitable for use in the present invention include SANWET IM 3900 polymer (available from Hoechst Celanese, Pottsmouth, Va.) And DOW DRYTECH 2035LD. Polymer (available from Dow Chemical Co., Midland, Mich.).
[39] The superabsorbent material may be of any of a wide variety of geometric shapes. In general, the superabsorbent material is preferably in the form of discrete particles. However, the superabsorbent material may also be fibrous, flake shaped, rod shaped, spherical shaped, needle shaped or the like. Generally, the superabsorbent material is present in the absorbent in an amount of about 5 to about 90 weight percent based on the total weight of the absorbent core 46.
[40] Optionally, a substantially hydrophilic tissue wrapsheet (not illustrated) can be used to help maintain the integrity of the airlaid fiber structure of the absorbent core 46. Typically, the tissue-wrapsheet is placed around the absorbent core on at least two major facing faces of the absorbent body and consists of an absorbent cellulosic material such as creped wedding or high wet strength tissue. As an aspect of the present invention, the tissue wrapsheet may be configured to provide a wicking layer that aids in the rapid dispensing of liquid over the mass of absorbent fibers that make up the absorbent core. Wrapsheet material on one side of the absorbent fibrous mass may be bonded to a wrapsheet located on the opposite side of the fibrous mass to allow the absorbent core 46 to be effectively trapped.
[41] As representatively illustrated in FIG. 1, the absorbent chassis 28 of the panty diaper 20 may include a pair of retention flaps 56 configured to provide barriers to lateral flow of body secretions. Retention flap 56 may be located along the laterally opposite side edge 30 of absorbent chassis 28. Each retention flap 56 typically defines an unattached edge configured to maintain an upright vertical shape at least in the crotch region 26 of the diaper 20 to form a seal relative to the wearer's body. Retention flap 56 may be longitudinally along the entire length of absorbent chassis 28, or may be present only in part along the length of absorbent chassis 28. When the retention flap 56 is shorter in length than the absorbent chassis 28, the retaining flap 56 may be selectively positioned anywhere along the lateral edge 30 of the absorbent chassis 28. As a special aspect of the invention, the retention flap 56 is present along the entire length of the absorbent chassis 28 to better contain body secretions.
[42] Such retention flaps 56 are generally well known to those skilled in the art. For example, suitable structures and arrangements of retention flap 56 are described in US Patent No. 4,704, 116 (registered November 3, 1987) to K. Enloe, which is incorporated herein by reference.
[43] Various different-sided disposable panty diapers 20 of the present invention are elastic on the waist edge 32 and the lateral edge 30 of the absorbent chassis 28 to further prevent body secretion leakage and support the absorbent chassis 28. It may further include. For example, as exemplarily illustrated in FIGS. 1 to 4, the panty diaper 20 of the present invention has a transversely opposite side edge of the absorbent chassis 28 in the crotch region 26 of the diaper 20. 30 may include a pair of leg elastic members 54 connected to 30 and a pair of waist elastic members 58 connected to the longitudinally opposite waist edges 32 of the absorbent chassis 28 of the diaper 20. have. In general, leg elastics 54 and waist elastics 58 fit the wearer's leg and waist circumference during use to maintain an active contact relationship with the wearer to effectively reduce or eliminate leakage of body secretions from the diaper 20. Is adapted to
[44] Materials suitable for use as leg elastics 54 and waist elastics 58 are well known to those skilled in the art. An example of such a material is that of an elastomeric material that is adhered to the outer cover 42 in an extended state or attached to the outer cover 42 with the outer cover corrugated so that an elastic shrinking force is imparted to the outer cover 42. Sheet or strand or ribbon. In addition, the leg elastics may include materials such as polyurethane, synthetic and natural rubber.
[45] As representatively illustrated in FIGS. 1 to 4, the panty diaper 20 further includes a pair of lateral panels 48 opposite in the transverse direction. Each side panel 48 has a first lateral margin 50 permanently attached to the lateral edge 30 of the absorbent chassis 28 at the anterior waist region 22, providing a pair of permanent engagement 76. And a second lateral margin 52 permanently attached to the lateral edge 30 of the absorbent chassis 28 in the rear waist region 24.
[46] In addition, each lateral panel 48 may comprise one or more individual pieces of separate material. For example, in the illustrated embodiment, each side panel 48 includes a front side panel 70 and a rear side panel 72. The illustrated front side panel 70 is a first side that is permanently attached to the lateral edge 30 of the absorbent chassis 28 in the front waist region 22 of the diaper 20 to provide a front permanent engagement 76. Margin 50. The illustrated rear side panel 72 is a second side that is permanently attached to the side edge 30 of the absorbent chassis 28 in the rear waist region 24 of the diaper 20 to provide a rear permanent engagement 76. Margin 52. In this form, as illustrated in FIGS. 1 to 3 and 5C to 5C, the transversely outwardly facing edges of each front side panel 70 are provided at the transversely outwardly facing edges of each rear side panel 72. Connected to provide lateral seam 74. Side panels 48 with these front side panels 70 and back side panels 72 provide improved productivity. In another form, each lateral panel 48 may comprise a single piece of material folded over the porcelain along a fold line positioned at a location similar to the lateral seam 74 in manufacturing.
[47] Lateral seams 74 of the present invention may be arranged in many forms. For example, as representatively illustrated in FIGS. 1-3 and 5C-5D, the lateral seam 74 may be provided in a flanged engagement form. In the illustrated embodiment, the inner surface of the front panel 70 is attached in a form overlapping the inner surface of the rear panel 72 to provide a flanged lateral seam 74. Alternatively, the lateral seam 74 may be provided in a lap-type bond form. As such, the outer surface 36 of one of the front panel 70 and the rear panel 72 is coupled to the inner surface 34 of the front panel 70 or the rear panel 72 in an overlapping arrangement. For example, the lateral seam 74 may be provided in lap bond form (not illustrated). In a lap bonded form, this form may be desirable because the lateral seam 74 is primarily exposed to shear forces in use to provide improved seam strength.
[48] Suitable materials for the side panels 48 of the diaper 20 are generally known in the art. For example, a suitable material for the side panel 48 is suitable for the outer cover 42 or the bodyside liner 44 of the absorbent chassis 28 of the diaper 20, such as a woven and nonwoven material and a stack of foreign materials. And the aforementioned materials. Preferably, the lateral panel 48 is elastic or stretchable to provide improved fit to the wearer's perimeter. For example, the lateral panel 48 can include stretch-thermal laminate (STL), neck-bonded laminate (NBL) or stretch-bonded laminate (SBL) material. Methods for the preparation of such materials are well known to those skilled in the art and are described in US Pat. No. 4,663,220 to May 5, 1987 to Wisneski et al., Which is incorporated herein by reference in its entirety. US Pat. No. 5,226,992, registered July 13, 1993, and European Patent Application EP 0,217,021, published April 8, 1987 to Taylor, et al. . When the side panel 48 is made of an elastic material, it is preferably about 10 to about 400%, more preferably about 100% or more, even more preferably in the transverse direction 40 for improved fit and performance. Preferably from about 100% to about 300%, even more preferably from about 150% to about 250%. The stretchability of the side panels when using elastic materials allows the side panels 48 to stretch over and around the wearer's hips when pulling on the pre-fastened diaper, while the waist after the diaper is correctly placed on the wearer Ensure proper fit is maintained.
[49] Alternatively, the side panel 48 may be provided by a portion of the absorbent chassis 28, such as outer cover 42, bodyside liner 44, or a combination thereof (not illustrated). For example, the side panel 48 may be provided by the outer cover 42. As such, the outer cover 42 extends laterally beyond the lateral edge 30 of the absorbent chassis 28 in the front or rear waist regions 22 and 24 so that the front or rear waist region of the diaper 20 ( Permanently attached to 22) and 24 may provide a pair of permanent engagement portions 76.
[50] Preferably, the side panel 48 is a neck-bonded laminate material because it has the ability to stretch in the cross machine direction for improved manufacturing. For example, in certain embodiments, the lateral panel 48 is from Shawmut Mills (office in West Bridgewater, Mass.) Inserted between two necked stretched spunbond layers. And neck-bonded laminate material comprising a urethane film having a basis weight of about 15 grams per square meter commercially available under the tradename SHAWMUT TX-1560. Each spunbond layer has a basis weight of about 16 grams per square meter and consists of 3.0 denier polypropylene fibers. The composite is laminated together with an additional amount of adhesive spray of about 0.3 grams per square meter. Suitable adhesives are available under the trade name FINDLEY 2525A from Findley Adhesive. Such neck-bonded laminate materials can generally be drawn about 185% in the cross machine direction.
[51] The permanently engaging portion 76 of the present invention, including the front, rear and lateral permanently engaging portion 76 may be comprised of a permanently engaging portion 64. For example, as representatively illustrated in FIGS. 5B-5D, permanent engagement 76 may be provided by continuous permanent engagement 64 extending longitudinally from the waist opening to the leg opening. Alternatively, permanent bond 64 may be provided discontinuously within permanent bond 76. For example, the permanent bond 64 can be a pocket of separated point bonds, dotted lines, continuous lines, discontinuous lines, and combinations thereof. In addition, the bond may have any shape, such as round, square, triangular, and the like. Permanent bond 64 may be provided by any type of bond, such as adhesive, thermal and sonic bonds well known to those skilled in the art. Preferably, the bonding is ultrasonic bonding for improved manufacturing efficiency.
[52] Alternatively, as representatively illustrated in FIGS. 1-5A, the permanent engagement 76 may be provided by a combination of permanent engagement 64 and fastener 60, as discussed in more detail below. have. As such, fastener 60 may be provided adjacent to or aligned with permanent engagement 64, thereby assisting permanent engagement 64 in providing permanent engagement 76. As such, the permanent coupling 76 may be provided by any combination of permanent coupling 64 and fastener 60, as is well known to those skilled in the art.
[53] The different-sided panty-type disposable diaper 20 of the present invention further includes one or more fasteners 60 on one of the lateral panels 48 to secure the absorbent article around the wearer's waist. Preferably, the diaper 20 includes a pair of fasteners 60 located on each side panel as illustrated in FIGS. 1-4 for improved fit and performance. The fastener 60 of the present invention is configured to be available after the weak line 62 is loosened, as discussed in more detail below. The fastener 60 provides for easy application of the panty absorbent article while providing fit and comfort of a conventional diaper type absorbent article when the caregiver or wearer wishes to use the article as a conventional diaper type absorbent article. The diaper 20 which can be provided is provided.
[54] Fastener 60 may consist of a single piece or multiple pieces of material. In addition, some of the diapers 20 may help to provide the fastener 60. For example, as representatively illustrated in FIGS. 5B-5D, the fastener 60 may be provided by a combination of fastening members 66 attached to a portion of the side panel 48. Fastener 60 may also be manufactured in a variety of shapes and sizes known to those skilled in the art. For example, as representatively illustrated in FIGS. 1-5A, fastener 60 may be generally rectangular in shape. Also, as representatively illustrated in FIGS. 5B-5D, fastener 60 can define other contours, such as curved or the like.
[55] Preferably, the fastener 60 of the present invention may be characterized by the ability to be stretched at least in the transverse direction 40. For example, as discussed above, the fastener 60 may be provided by a combination of the fastening member 66 and a portion of the side panel 48 that may be stretched. Thus, the stretchable lateral panel 48 provides stretch for the fastener 60. In addition, the fastener 60 is configured to itself extend at least in the transverse direction. As such, the fastener 60 can define a degree of stretch that is different from the lateral panel 48. Alternatively, fastener 60 can include an extensible panel (not illustrated) that can provide fastener 60 having a different degree of stretchability than lateral panel 48. Greater flexibility in engaging the outer surface 36 of the absorbent chassis 28 of the diaper 20 with the fastener 60 when the fastener 60 is characterized by at least stretch in the transverse direction 40. And range is allowed to provide the wearer with improved fit and comfort. If the fastener 60 is provided with a stretchable panel, the fastener may be made of a material well known in the art. Materials suitable for the side panel 48 may include stretch-bonded suitable layer (SBL) materials, neck-bonded laminate (NBL) materials, elastomer films, elastomer foam materials, and the like as described above.
[56] Preferably, the fastener 60 may be configured to directly refasten directly to the outer surface of the outer cover 42 of the diaper 20 to provide improved fit and ease of fastening. The fastener 60 may also be configured to refasten directly to the outer surface of the lateral panel 48 of the diaper 20. As such, by providing the wearer or caregiver with a larger surface area for engaging the fastener 60, the fit and ease of fastening of the diaper 20 can be further improved.
[57] Alternatively, the attachment panel 82 may be positioned on the outer cover 42 and configured to refastenably engage the fastener to the attachment panel 82. As representatively illustrated in FIG. 3, the disposable diaper 20 of the present invention includes an attachment panel 82 positioned on the outer cover 42 at one of the waist regions 22 and 24 of the diaper 20. On outer surface 36. In this form, the fastener 60 is refastened to the attachment panel 82 to keep the diaper 20 around the wearer's waist after the weak line 62 is broken and the fastener 60 becomes available. Configured to engage with each other. Attachment panel 82 may include two separate panels positioned along opposite lateral edges 30 of diaper 20 in one of waist regions 22 and 24 of diaper 20. Alternatively, attachment panel 82 may comprise a single piece of material extending substantially throughout each waist region of diaper 20.
[58] Suitable fasteners that contribute to providing the fastener 60 are well known to those skilled in the art and include adhesive tape tab fasteners, hook and loop fasteners, mushroom fasteners, snaps, pins, belts, and the like and combinations thereof. can do. For example, as illustrated in the embodiment, the fastener 60 and / or fastening member 66 may be a hook-type fastener and the outer cover 42 or attachment panel 82 is complementary looped. It can be configured to function as a fastener. Preferably, the fastener 60 is a hook-type fastener that can be refastenably engaged with the outer cover 42 directly. This arrangement provides the ability to vary the size of the waist opening in small increments over a wide range to fit the wearer's waist.
[59] The different-sided panty-type diapers 20 of the present invention further include one or more weak lines 62 in one of the lateral panels 48. Preferably, the diaper 20 includes a weak line 62 and a fastener 60 in each side panel 48. For example, as representatively illustrated in FIGS. 1-4, each front side panel 70 includes a weak line 62. Alternatively, as representatively illustrated in FIGS. 5C-5D, the weak line 62 may be located on one or both of the rear side panels 72.
[60] Weak line 62 may consist of one or more weak lines 62. For example, as representatively illustrated in FIGS. 1-4, the diaper 20 includes a pair of distinct weak lines 62 located on each lateral panel 48. Alternatively, as representatively illustrated in FIGS. 5A-5D, the weak line 62 may consist of one continuous weak line.
[61] The diaper 20 is provided in the form of a panty in which the weak line 62 is not damaged. In such form, the diaper 20 can be worn or peeled off by pulling it over the wearer's leg and hips. In addition, the weak line 62 should have a relatively low strength so that, if desired, the joint can be broken by the caregiver without tearing or severely damaging other portions of the diaper 20. However, the strength of the weak line 62 should be large enough so that it will not break until it is intentionally broken by the caregiver. As such, the weak line 62 can break to irradiate the diaper for possible dirt. If the diaper 20 becomes dirty during use, the weak line 62 can be broken to easily remove the diaper 20 from the wearer's waist while reducing the risk of undesirably soiling the wearer's clothes or legs. Finally, the weak line 62 may be loosened to allow the user to choose to apply the panty diaper 20 in the form of a conventional diaper.
[62] Weak line 62 may be located anywhere on side panel 48 as is well known in the art. For example, as representatively illustrated in FIG. 5C, the weak line may generally be located in the center of the front or rear side panels 70 and 72. Alternatively, the weak line may be located adjacent to one of the permanent bonds 76. For example, as representatively illustrated in FIGS. 1-5B and 5D, the weak line may be located adjacent to the front or lateral permanent engagement 76. Alternatively, the weak line 62 may be located inside the first or second lateral margins 50 and 52 of the lateral panel 48. Preferably, as representatively illustrated in FIGS. 1-5B and 5D, a weak line may be located between the fastener 60 and the permanent bond 64 providing the permanent bond 76.
[63] Suitable weak lines 62 are well known to those skilled in the art and include lines of perforated, thinned or engraved material, which may be continuous or discontinuous, other pieces of weaker material, or combinations thereof. Can be. Preferably, weak line 62 is provided with perforations for improved performance and ease of use. For example, as representatively illustrated in FIGS. 1-5D, diaper 20 includes one or more perforated lines to provide a weak line 62. The perforation may be made of ultrasonic holes or may be provided by mechanical perforation means well known to those skilled in the art. In addition, the use of a weak wire 62 can improve the productivity of the diaper 20 by allowing the permanent bond 64 to be applied critically during the manufacturing process.
[64] The weak line is provided in combination with the fastener 60. In such a state, when the weak line 62 is opened, in the illustrated embodiment the fastener 60 reattaches the lateral panel 48 of the diaper 20 to the front waist region 22 of the diaper 20. And be made available for engagement with the fastenable engagement. If the lateral panel 48 and / or fastener 60 is stretchable, this arrangement advantageously refastenses the fastener 60 to the front waist region 22 of the diaper 20. Provided to the caregiver or wearer of the extensibility from the lateral panel 48. Thus, the likelihood of a leak is reduced by providing the wearer with a closer fit and more conformable fit.
[65] Alternatively, the weak line 62 and the fastener 60 can be configured to engage the fastener with the back waist region 24 of the diaper 20. In this form, fastener 60 engages lateral panel 48 to rear waist region 24 to provide diaper 20. This form is advantageous when it is desired that the weak line 62 and the fastener 60 be positioned towards the rear of the wearer. This form is desirable to prevent the wearer from opening the weak line 62 or fastener 60 too early.
[66] The combination of the fastener 60 and the weak line 62 can be located anywhere on the side panel 48 of the diaper 20 as is well known to those skilled in the art. For example, as representatively illustrated in the illustrated embodiment, the fastener 60 is permanently attached to the diaper 20 in the lateral panel 48 adjacent the weak line 62. As a result, the weak line 62 separates the fastener 60 from one of the permanent engagement portions 76. As such, when the weak line 62 is broken and opened to provide a diaper 20 of the conventional type, the fastener 60 is usable and the lateral panel 48 is moved to the front waist region 22 or the rear waist. And refastenably engage the outer surface 36 of the region 24.
[67] In particular, as representatively illustrated in FIGS. 1-2 and 4-5B, fastener 60 and weak line 62 may be located in front side panel 70. As such, when the weak line 62 is broken, the fastener 60 is configured to refasten the front lateral panel 70 to the outer surface 36 of the front waist region 22. Preferably, fastener 60 and weak line 62 are located adjacent permanent engagement 76.
[68] Alternatively, as representatively illustrated in FIG. 5D, fastener 60 and weak line 62 may be located in rear lateral panel 72. As such, when the weak line 62 is broken, the fastener 60 is configured to refasten the rear side panel 70 to the outer surface 36 of the front waist region 22. Alternatively, the fastener 60 can be configured to refastenly engage the rear lateral panel 70 with the outer surface 36 of the rear waist region 24. Preferably, fastener 60 and weak line 62 are positioned adjacent lateral permanent engagement 76, and fastener 60 is configured to engage front waist region 22.
[69] Alternatively, as illustrated representatively in FIG. 3, fastener 60 and weak line 62 may be located inside or adjacent to lateral seam 74, where weak line 62 is present. Separates fastener 60 from permanent engagement 64 providing lateral permanent engagement 76. As such, the fastener 60 may be configured to refasten the front waist region 22 or the back waist region 24 when the perforation line 62 is broken.
[70] The combination of the weak line 62 and the fastener 60 can be provided in any form known to those skilled in the art. For example, as representatively illustrated in FIGS. 5B-5D, the weak line 62 may define a continuous line extending from the waist opening to the leg opening. Thus, the weak line 62 also extends from the waist opening to the leg opening while separating the fastener 60 from the permanent engagement 76. In this form, the weak line 62 may also define the contour of the fastener 60. In particular, the fastener 60 may consist of a combination of fastener members 66 attached to a portion of the lateral panel as described above. Upon breaking of the weak line 62, the fastener 60 is a side panel. 48 is provided for use in refastenably engaging the front or rear waist regions 22 and 24. This form may be desirable as it provides a neat diaper appearance in panty form. The fastener 60 is not unobtrusive while the diaper 20 is used in a panty arrangement, whereas it is readily available and noticeable after the opening of the weak line 62.
[71] Alternatively, the weak line 62 may only partially surround the permanent bond 64 including the permanent bond 76. As such, the weak line 62 separates the fastener 60 from the permanent bond 76 by merely separating the permanent bond 64 from the fastener 60. For example, as representatively illustrated in FIGS. 1-5A, the weak line 62 is limited to only partially surrounding the permanent bond 64 that provides the permanent bond 76. As such, the panty diaper 20 is only open for use in conventional form when the weak line 62, which is limited to at least partially enclosing the permanent bond, breaks and the fastener 60 becomes usable.
[72] In this form, the permanent coupling 76 may be provided by a single permanent coupling 64 and fastener 60 partially surrounded by the weak line 62. For example, as representatively illustrated in FIG. 5A, the permanent engagement portion 76 may be a single permanent engagement (partially surrounded by a fastener 60 and a weak line 62 to be separated from the fastener 60). 64). As such, when the weak line 62 is opened, the fastener 60 becomes usable and the diaper 20 is of a conventional form. Alternatively, the permanent bond 76 may be provided by a plurality of permanent bonds 64. For example, as representatively illustrated in FIGS. 1-4, the permanent engagement 76 is each paired permanent engagement 64 partially surrounded by a weak line 62 to separate from the fastener 60, respectively. It is provided by the fastener 60 located between. As such, the diaper 20 is open for use in conventional form when the perforations 62 are all open, and the fastener 60 is also exposed for use.
[73] In certain embodiments representatively illustrated in FIG. 3, the lateral seam 74 can include longitudinally spaced permanent bonds 64, each providing two, lateral permanent bonds 76, and fasteners 60 is located between two permanent bonds 64. Each lateral seam also includes a weak line 62 partially surrounded by permanent bond 64. As such, the weak line separates fastener 60 from each permanent bond 64. Thus, upon opening of the weak line 62, the diaper 20 is provided in a conventional form, and the fastener 60 can detach the lateral panel 48 to the outer surface 36 of the front waist region 22. It can be used for the purpose of attachment.
[74] Another aspect of the present invention advantageously provides a panty-type disposable absorbent article comprising a combination of weak lines and fasteners. The absorbent article is provided in the form of a pre-tightened panty to allow it to be pulled up and down the hips of the wearer, such as conventional training panties. However, the weak line can be loosened to allow the diaper to be used and applied like a conventional diaper. In addition, upon opening of the weak line, the fastener may be adapted to refastenably engage the front and rear waist portions of the absorbent article and to hold the absorbent article around the wearer's waist after the article has been pulled and worn in a manner similar to conventional diapers. Can be used.
[75] Thus, the absorbent article of the present invention is designed to be reliably pulled up and down the hips of the wearer to aid in the wearer's practice of toilet. In addition, similar to conventional diapers, the absorbent articles of the present invention are advantageously applied to the wearer and can be removed from the wearer relatively easily and cleanly. As such, the present invention provides panty-shaped absorbent articles and absorbent articles that perform the dual function of conventional diapers.
[76] Although the present invention has been described in detail with respect to specific aspects thereof, those skilled in the art can readily derive changes, modifications, and equivalents to these aspects when understanding the above. Accordingly, the scope of the invention should be assessed as that of the appended claims and their equivalents.

权利要求:
Claims (33)
[1" claim-type="Currently amended] a) an absorbent chassis defining an absorbent core, an outer surface, an inner surface opposite the outer surface, a pair of lateral edges facing in the transverse direction and a pair of waist edges facing in the longitudinal direction,
b) a pair of opposing pairs extending laterally outwardly from said lateral edges of said absorbent chassis, said front waist region connecting to said back waist region defining a waist opening and a pair of leg openings of a panty-shaped disposable absorbent article; Side panels,
c) fasteners located on one of the lateral panels, and
d) a weak line located on the lateral panel that separates the fastener from either the front permanent coupling or the rear permanent coupling,
Each of the opposing lateral panels permanently attached to the lateral edges of the absorbent chassis in the front waist region to provide a pair of front permanent couplings and a first side margin of the absorbent chassis in the rear waist region. Define a second lateral margin permanently attached to the lateral edge to provide a pair of rear permanent engagement,
The fastener is exposed only after the weak line is broken and refitably engages one or more of the lateral panels of the absorbent article to the outer surface of the absorbent chassis in either the front waist region or the rear waist region of the absorbent article. Configured to
A panty-type disposable absorbent article extending between the front waist region, the back waist region, the waist regions to define the crotch region, longitudinal and transverse directions connecting them.
[2" claim-type="Currently amended] The absorbent article of claim 1 wherein the fastener is a hook and loop fastener.
[3" claim-type="Currently amended] The absorbent article of claim 2 further comprising at least one attachment panel located on the outer surface of the absorbent chassis, the fastener being configured to refasten the attachment panel.
[4" claim-type="Currently amended] 3. The absorbent article as in claim 2, wherein said absorbent chassis comprises an outer cover providing said outer surface of said absorbent chassis, said fastener being configured to refasten directly to said outer cover of said absorbent chassis.
[5" claim-type="Currently amended] The absorbent article of claim 1 wherein said lateral panels are at least extensible in said lateral direction.
[6" claim-type="Currently amended] 6. The absorbent article as in claim 5, wherein the lateral panel is a neck-bonded laminate material.
[7" claim-type="Currently amended] The absorbent article of claim 1 wherein the fastener is stretchable.
[8" claim-type="Currently amended] 8. An absorbent article as set forth in claim 7, wherein said side panel is extensible and said fastener defines a degree of stretch that is different from said side panel.
[9" claim-type="Currently amended] The absorbent article of claim 1 wherein the fastener is provided by a fastening member attached to a portion of the lateral panel.
[10" claim-type="Currently amended] The absorbent article of claim 1 wherein the fastener defines a fastener contour and the fastener contour is at least partially provided by the weak line.
[11" claim-type="Currently amended] The absorbent article of claim 10, wherein the fastener contour is curved.
[12" claim-type="Currently amended] The absorbent article of claim 1 wherein the weak line defines a continuous line extending from the waist opening to one of the leg openings.
[13" claim-type="Currently amended] The absorbent article of claim 1 wherein said weak line is a line of perforation.
[14" claim-type="Currently amended] The absorbent article of claim 13 wherein the line of perforation is an ultrasonic aperture.
[15" claim-type="Currently amended] a) an absorbent chassis defining an absorbent core, an outer surface, an inner surface opposite the outer surface, a pair of lateral edges facing in the transverse direction and a pair of waist edges facing in the longitudinal direction,
b) a laterally opposite pair of stretchable rear panels permanently attached to the lateral edges of the absorbent chassis in the rear waist region of the absorbent article to provide a pair of rear permanent engagement portions,
c) a transversely opposite pair of stretchable front panels permanently attached to the lateral edges of the absorbent chassis in the front waist region of the absorbent article to provide a pair of front permanent bonds,
d) fasteners located on each of said front panels, and
e) a weak line located in each of said front panels and separating said fastener from said front permanently engaging portion,
The front panel and the rear panel of each lateral edge of the absorbent chassis are permanently connected together at the lateral seam to provide a pair of lateral permanent couplings, defining a waist opening and a pair of leg openings to define a panty-type disposable absorbent article. Provide,
The fastener is exposed only after the weak line is broken and configured to refasten the front panel to the outer surface of the absorbent chassis in the front waist region of the absorbent article;
A panty-type disposable absorbent article extending between the anterior waist region, the posterior waist region, and the waist regions to define the crotch region, longitudinal and transverse directions that connect them.
[16" claim-type="Currently amended] The absorbent article of claim 15 wherein the fastener is a hook and loop fastener.
[17" claim-type="Currently amended] The absorbent article of claim 15 wherein the fastener is stretchable.
[18" claim-type="Currently amended] 18. The absorbent article of claim 17 wherein the fastener defines a degree of stretch that is different from the front side panel.
[19" claim-type="Currently amended] The absorbent article as set forth in claim 15, wherein the fastener is provided by a fastening member attached to a portion of the front side panel.
[20" claim-type="Currently amended] 16. The absorbent article of claim 15 wherein the fasteners each define a fastener contour and the fastener contour is at least partially provided by the weak line.
[21" claim-type="Currently amended] 21. The absorbent article of claim 20 wherein the fastener contour is curved.
[22" claim-type="Currently amended] The absorbent article of claim 15 wherein said weak line is a perforated line.
[23" claim-type="Currently amended] 23. The absorbent article of claim 22 wherein the lines of each perforation are ultrasonic holes.
[24" claim-type="Currently amended] a) an absorbent chassis defining an absorbent core, an outer surface, an inner surface opposite the outer surface, a pair of lateral edges facing in the transverse direction and a pair of waist edges facing in the longitudinal direction,
b) a laterally opposite pair of stretchable rear panels permanently attached to the lateral edges of the absorbent chassis in the rear waist region of the absorbent article to provide a pair of rear permanent engagement portions,
c) a transversely opposite pair of stretchable front panels permanently attached to the lateral edges of the absorbent chassis in the front waist region of the absorbent article to provide a pair of front permanent bonds,
d) fasteners positioned adjacent said lateral permanent coupling in each said rear panel, and
e) a weak line located in each of said rear panels and separating said fastener from said rear permanently engaging portion,
The front panel and the rear panel of each lateral edge of the absorbent chassis are permanently connected together at the lateral seam to provide a pair of lateral permanent couplings, defining a waist opening and a pair of leg openings to define a panty-type disposable absorbent article. Provide,
The fastener is exposed only after the weak line is broken and is configured to refasten the back panel to the outer surface of the absorbent chassis in the front waist region of the absorbent article;
A panty-type disposable absorbent article extending between the anterior waist region, the posterior waist region, and the waist regions to define the crotch region, longitudinal and transverse directions that connect them.
[25" claim-type="Currently amended] 25. The absorbent article of claim 24 wherein the fastener is a hook and loop fastener.
[26" claim-type="Currently amended] The absorbent article of claim 24 wherein said fastener is stretchable.
[27" claim-type="Currently amended] 27. The absorbent article of claim 26 wherein the fastener defines a degree of stretch that is different from the rear side panel.
[28" claim-type="Currently amended] 25. The absorbent article as in claim 24, wherein said fastener is provided by a fastening member attached to a portion of said rear side panel.
[29" claim-type="Currently amended] 25. The absorbent article of claim 24 wherein the fasteners each define a fastener contour and the fastener contour is at least partially provided by the weak line.
[30" claim-type="Currently amended] 30. The absorbent article of claim 29 wherein the fastener contour is curved.
[31" claim-type="Currently amended] The absorbent article of claim 24 wherein said weak line is a perforated line.
[32" claim-type="Currently amended] 32. The absorbent article of claim 31 wherein the lines of each perforation are ultrasonic holes.
[33" claim-type="Currently amended] 25. The method of claim 24, wherein each lateral seam comprises at least two longitudinally spaced permanent bonds, the fastener being located at the lateral seam between the longitudinally spaced bonds, wherein each weak line is interposed therebetween. And absorbing the fastener to separate the fastener from the longitudinally spaced permanent bond.

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KR100676797B1|2007-02-01|Absorbent Article with Non-irritating Refastenable Seams

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EP1565142B1|2011-04-13|Absorbent article with improved fastening system

同族专利:

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公开号 | 公开日

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KR100738793B1|2007-07-12|

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MXPA03003766A|2003-07-28|

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GB2385772B|2004-08-11|

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JP2004520869A|2004-07-15|

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DE10196884B4|2014-12-24|

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DE10196884T5|2004-04-15|

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GB2385772A|2003-09-03|

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US6508797B1|2003-01-21|

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GB0312105D0|2003-07-02|

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AU4158002A|2002-06-03|

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WO2002041816A2|2002-05-30|

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JP4139683B2|2008-08-27|

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WO2002041816A3|2003-12-31|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2000-11-03|Priority to US09/706,150

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2000-11-03|Priority to US09/706,150

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2001-11-01|Application filed by 킴벌리-클라크 월드와이드, 인크.

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2001-11-01|Priority to PCT/US2001/046267

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2003-06-02|Publication of KR20030044069A

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2007-07-12|Application granted

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2007-07-12|Publication of KR100738793B1

优先权:

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申请号 | 申请日 | 专利标题

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US09/706,150|2000-11-03|

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US09/706,150|US6508797B1|2000-11-03|2000-11-03|Pant-like disposable absorbent articles with a releasable line of weakness and a fastener|

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PCT/US2001/046267|WO2002041816A2|2000-11-03|2001-11-01|Pant-like disposable absorbent articles with a releasable line of weakness and a fastener|