Bags comprising perforated film wall materials and methods of making

专利摘要:
The present invention relates to sachets, for example, sachets that contain one or more active agents, such as an active agent for tissue care or an active agent for tissue. dishwashing and / or detergent compositions, and more particularly sachets using perforated film wall material and associated manufacturing methods. Figure 1
公开号:FR3092338A1
申请号:FR2001083
申请日:2020-02-04
公开日:2020-08-07
发明作者:Andreas Josef Dreher；Mark Robert Sivik；Gregory Charles Gordon；Hailing Bao；Paul Dennis Trokhan；Paul Thomas Weisman
申请人:Procter and Gamble Co；
IPC主号:

专利说明:

[0001] The present invention relates to sachets, for example, sachets which contain one or more active agents, such as a fabric care active and/or a dishwashing active and/or detergent compositions, and more particularly pouches comprising an apertured film wall material and associated methods of manufacture.
[0002] Sachets comprising detergent compositions and/or liquid compositions have been made in the past with film wall materials. Some of these pouches have been manufactured in the past with a single hole in the film wall material as a processing aid to degas the contents of the pouch's internal volume. Such a single hole in the film wall material showed no significant impact on the solubility of the film wall material during use. Other pouches known in the art do not contain such a hole in their film wall materials. Notwithstanding, consumers are constantly looking for better performing pouches for use in their consumer cleaning operations, such as laundry and/or dishwashing operations. Better performing pouches mean faster break times, faster dissolution times, and/or complete dissolution.
[0003] A problem with known pouches is their relatively long mean break time and/or mean dissolution time and/or less than complete dissolution of their film wall materials resulting in the film wall material remaining after use. . The remaining film wall material can attach to any items being cleaned making using the pouches an unpleasant experience for consumers. Similarly, less than completely soluble film wall material from a pouch presents a disposal problem or task after use, as it must be disposed of in a solid waste stream.
[0004] Thus, there is a need for a pouch comprising a film wall material which performs better than known pouches, for example, by exhibiting a shorter mean break time, a shorter mean dissolution time, and/or complete dissolution and processes for its manufacture. Further, there is a need for a pouch made from an apertured film wall material and for methods of making the same, wherein the pouch exhibits rapid release of its contents under temperature conditions. intended use. Also further, there is a need for a pouch made from an apertured film wall material and methods of making the same which do not compromise the containment of materials and particulates within the pouch. during distribution and handling. There is also a need for a pouch made from an apertured film wall material and methods for making the same where there is containment of materials and particulates within the pouch during dispensing and handling while maintaining a sufficient amount of geometric mean (GM) tensile strength of the perforated film wall material of the pouch. Further, there is a need for a pouch comprising an apertured film wall material which includes perforations which are chosen to effectively maintain containment of particulate matter (active agents) within the internal volume of the pouch. Finally, there is a need for a pouch made from an apertured film wall material and methods of making the same which provides release of perfumes and scents during storage and use of the pouches.
[0005] The present invention satisfies the above-discussed needs by providing novel pouches that include apertured film wall material and associated manufacturing methods.
[0006] An object of the present invention is a pouch comprising an apertured film wall material which defines an internal volume of the pouch.
[0007] Additionally, the pouch of the present invention may rupture as measured by the rupture test method. Preferably, said sachet has an average break time of less than 240 seconds as measured according to the break test method.
[0008] Additionally, the pouch of the present invention may include an apertured film wall material that includes a hydroxyl polymer. Preferably, said hydroxyl polymer is chosen from the group consisting of: pullulan, hydroxypropylmethyl-cellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, sodium alginate, xanthan gum, tragacanth gum, guar gum, acacia gum, gum arabic, polyacrylic acid, dextrin, pectin, chitin, collagen, gelatin, zein, gluten, soy protein, casein, polyvinyl alcohol, starch, starch derivatives, hemicellulose, hemicellulose derivatives, proteins, chitosan, chitosan derivatives, polyethylene glycol , tetramethylene ether glycol, hydroxymethylcellulose, and mixtures thereof.
[0009] Additionally, the sachet of the present invention may further comprise an active agent within the internal volume of the sachet. Preferably, said active agent is selected from the group consisting of: surfactants, bleaching agents, enzymes, suds suppressors, suds boosters, fabric softening agents, denture cleaning agents, hair cleaning agents , hair care agents, personal care agents, tinting agents, effervescent agents, and mixtures thereof, preferably wherein the active agent is in the form of a powder.
[0010] Additionally, the pouch of the present invention may exhibit a % weight loss of less than 10% as measured by the shake test method. Preferably, said sachet exhibits a % weight loss of less than 5% as measured by the shake test method.
[0011] Additionally, the pouch of the present invention may release one or more of the active agents when the pouch is exposed to the conditions of intended use.
[0012] Additionally, the pouch of the present invention may have a water content ranging from 0% to 20% as measured by the Water Content Test Method.
[0013] Additionally, the pouch of the present invention may further comprise a separate inner pouch present within the internal volume. Preferably, said inner pouch comprises a film wall material which defines a second internal volume. More preferably, said inner pouch film wall material comprises a perforated film wall material and/or an unperforated film wall material. Most preferably, said second internal volume comprises an active agent.
[0014] Additionally, the inner pouch of the pouch of the present invention may exhibit a rupture time equal to or greater than the rupture time of the pouch as measured by the rupture time test method.
[0015] Additionally, the pouch of the present invention may comprise an apertured film wall material that exhibits a geometric mean tensile strength greater than 0.1 kN/m as measured by the tensile test method.
[0016] Additionally, the pouch of the present invention may comprise an apertured film wall material which exhibits a geometric mean elongation at break of less than 1000% as measured by the tensile test method.
[0017] Additionally, the pouch of the present invention may comprise an apertured film wall material that includes a regular pattern of perforations.
[0018] Additionally, the pouch of the present invention may include a perforated film wall material which includes different sized perforations.
[0019] Additionally, the pouch of the present invention may include a perforated film wall material which includes differently shaped perforations.
[0020] One solution to the previously described problem is a pouch comprising a perforated film wall material, such as a water-soluble perforated film wall material that exhibits a shorter Break Time as measured by the break test method described herein, and/or a shorter dissolution time as measured by the dissolution test method described herein, and/or complete dissolution.
[0021] In one example of the present invention, a unit dose product, such as a pouch, comprising an apertured film wall material, such as a water-soluble apertured film wall material, is provided.
[0022] In another example of the present invention, there is provided a pouch comprising a pouch wall that defines an internal volume of the pouch containing one or more active agents, wherein the pouch wall comprises an apertured film wall material, such as a water-soluble apertured film wall material, and wherein the pouch ruptures when exposed to the conditions of intended use, such as during use, to release one or more of its active agents.
[0023] In another example of the present invention, there is provided a pouch comprising a pouch wall that defines an internal volume of the pouch containing one or more active agents, wherein the pouch wall comprises an apertured film wall material, such as a water-soluble perforated film wall material, which ruptures as measured by the rupture test method described herein.
[0024] In yet another example of the present invention, there is provided a pouch comprising an apertured film wall material, such as a water-soluble apertured film wall material, which defines an internal volume of the pouch containing one or more active agents, the pouch exhibiting a % weight loss of less than 10% as measured by the shake test method described herein.
[0025] In yet another example of the present invention, there is provided a pouch comprising an apertured film wall material, such as a water-soluble apertured film wall material, which defines an internal volume of the pouch containing one or more flavoring agents which are released from the bag.
[0026] In yet another example of the present invention, there is provided a method of making a pouch according to the present invention comprising the steps of: a) providing an apertured film wall material, such as a water-soluble apertured film wall material; and b) forming a pouch defining an internal volume from the apertured film wall material.
[0027] In yet another example of the present invention, there is provided a method of making a pouch according to the present invention comprising the steps of: a) providing a film wall material, such as a water-soluble film wall material; b) creating a plurality of holes in the film wall material so as to form a perforated film wall material; and c) forming a pouch defining an internal volume from the apertured film wall material.
[0028] In yet another example of the present invention, there is provided a method for treating a textile article in need of treatment, the method comprising the step of treating the textile article with a sachet according to the present invention, for example, by contact of the textile article with a lye formed by adding a sachet to water.
[0029] In yet another example of the present invention, there is provided a method for treating tableware in need of treatment, the method comprising the step of treating the tableware with a sachet according to the present invention, for example, by contacting dishes with a washing liquor formed by adding a sachet to water.
[0030] In yet another example of the present invention, there is provided a method for treating a toilet bowl in need of treatment, the method comprising the step of treating the toilet bowl with a sachet according to the present invention, for example, by placing contacting the toilet bowl with a cleaning liquor formed by adding a sachet to water.
[0031] The present invention relates to a pouch comprising an apertured film wall material, such as a water-soluble apertured film wall material, and methods for its manufacture.
[0032] Fig. 1
[0033] Figure 1 is a schematic representation of an example of a sachet according to the present invention;
[0034] Fig. 2
[0035] Figure 2 is a schematic representation of the pouch of Figure 1 in use;
[0036] Fig. 3
[0037] Figure 3 is a schematic representation of an example of a sachet according to the present invention;
[0038] Fig. 4
[0039] Figure 4 is a schematic representation of an example of a multi-compartment pouch according to the present invention;
[0040] Fig. 5
[0041] Figure 5 is a schematic representation of an example of an apertured film wall material according to the present invention;
[0042] Fig. 6
[0043] Figure 6 is a schematic representation of another example of a pouch according to the present invention;
[0044] Fig. 7
[0045] Figure 7 is a schematic representation of the pouch of Figure 6 in use;
[0046] Fig. 8
[0047] Figure 8 is a front elevational view of a setup for the rupture and dissolution test methods;
[0048] Fig. 9
[0049] Figure 9 is a partial top view of Figure 8; and
[0050] Fig. 10
[0051] Figure 10 is a side elevational view of Figure 8.
[0052] A "film wall material", as used herein, refers to a film material which forms one or more of the walls of a pouch. In one example, the film wall material of a pouch, at least partially or entirely, directly or indirectly defines and surrounds, directly or indirectly, an internal volume of the pouch.
[0053] A "perforated film wall material", as used herein, means that the film wall material comprises a plurality of holes, for example, more than 2 and/or more than 3 and/or more than 4 and/or more than 5. In one example, the perforated film wall material is more than 20% and/or more than 50% and/or more than 70% and/or more than 90% and/or 100% of the total surface area of the film wall material. A pouch 10 having 100% of its total area being film wall material 12, i.e., perforated film wall material 14 comprising a plurality of holes 16 is illustrated in Figures 1 and 2. another example, the perforated film wall material 14 constitutes less than 100% and/or less than 70% and/or less than 50% and/or less than 20% and/or less than 10% of the total area of the film wall material 12 of a pouch 10 as shown in Figure 3. In yet another example, as shown in Figure 4, the pouch 10 is a multi-compartment pouch which includes a wall material in perforated film 14.
[0054] The perforated film wall material of the present invention may be homogeneous or may be layered. If layered, the apertured film wall material may comprise at least two and/or at least three and/or at least four and/or at least five layers.
[0055] The apertured film wall material comprising the pouch may comprise one or more active agents, for example, a fabric care active, a dishwashing active, a hard surface active, and mixtures thereof. In one example, an apertured film wall material of the present invention includes one or more surfactants, one or more enzymes (such as in enzyme spherule form), one or more flavorants, and/or one or more suppressants. of foam. In another example, an apertured film wall material of the present invention includes an adjuvant and/or a chelating agent. In another example, an apertured film wall material of the present invention includes a bleaching agent (such as an encapsulated bleaching agent).
[0056] In one example, the apertured film wall material is a water-soluble apertured film wall material. In another example, the perforations of the perforated film wall material may be arranged in a regular pattern, for example, in the form of a logo, word, and/or symbol, or a non-random repeating pattern. In yet another example, the perforations can be arranged in a non-repeating pattern.
[0057] The perforations within the apertured film wall material can be of virtually any shape and size, so long as the apertured film wall material provides the function of defining at least a portion of the internal volume of a pouch . In one example, the perforations within the perforated film wall materials are generally round or oblong in shape, in a regular pattern of spaced apertures. The perforations may each independently have a diameter ranging from about 0.1 to about 2 mm and/or from about 0.5 to about 1 mm. The perforations may form an open area within the perforated film wall material ranging from about 0.5% to about 25% and/or from about 1% to about 20% and/or from about 2% to about 10%. It is believed that the beneficial effects of the present invention can be realized with non-repeating and/or non-regular patterns of perforations having various shapes and sizes. In one example, the perforations may be oriented such that the perforation walls project outward from the apertured film wall material of the pouch or inward toward the interior volume of the pouch.
[0058] In one example, two or more of the perforations in the perforated film wall material have different sizes and/or shapes.
[0059] Figure 5 illustrates an example of a perforated film wall material 14. The perforated film wall material 14 includes a plurality of holes 16 defined in this case by the perforation walls 17 which protrude from a surface of the screen material. perforated film wall 14. In one example, perforation walls 17 may protrude from either surface (opposing surfaces) of perforated film wall material 14. As illustrated, perforation walls 17 may be volcano-like structures having relatively thin irregularly shaped distal ends 19 around their periphery. The perforation walls 17 extend from their distal ends to a surface of the apertured film wall material 14. a user and prevent pouches made with this type of apertured film wall material 14 from sticking together during storage and distribution in a package comprising a plurality of pouches. Pouches could be made with the distal end 19 of the apertured film wall material 14 facing the interior or exterior of the pouch.
[0060] The perforation walls 17 of the apertured film wall material 14 illustrated in Figure 5 may have a perforation gauge H, which is the dimension from the opposite surface plane A of the apertured film wall material 14 to a distal end 19 of a perforation wall 17.
[0061] The puncture gauge H is measured using microscopic techniques such as viewing a cross section of the perforated film wall material with a scanning electron microscope. The puncture gauge H is measured under a non-confining weight condition with such microscopy methods. The diameter of the holes formed by the perforation wall extending from the surface of the perforated film wall material is the average diameter measured by taking measurements from the opposite surface plane A of the perforation wall to the opening in the perforation wall at the distal end of the perforation wall. Such diameter measurements are also made by microscopy, as mentioned previously for the perforation gauge measurements H. The perforation gauge H can have values ranging from approximately 0 to approximately 3 mm and/or approximately 0.01 mm to about 2 mm and/or from about 0.05 mm to about 2 mm.
[0062] In one example, openings/holes (perforations) can be punched in the film wall materials, before and/or after it is formed into a pouch, using any suitable method and/or equipment, for example, a needling needle with a diameter of about 0.6 mm. Openings (perforations) can be pierced in an area of approximately 1 cm ² in the center of the rounded part (powder side) of a sachet so as to form a sachet comprising an apertured film wall material. Each hole can be drilled so that the needle penetrates completely into the film wall material. In another example, the pouch may comprise a perforated film wall material comprising a region of openings (perforations) - a perforated region, and a region without openings (no perforations) - an unperforated region.
[0063] Apertured films can be made by any number of known techniques. Suitable perforating methods for films are described in U.S. Patent No. 2,748,863 entitled "Perforating Machine For Thermoplastic Films" which describes the use of a perforating cylinder packed with hot pins arranged in annular rows and a backing roller having grooves which cooperate with the pins defining a line of contact in which the thermoplastic films can be perforated. Other suitable methods for perforating films are described in U.S. Patent No. 3,929,135, entitled "Absorptive Structures Having Tapered Capillaries", which issued to Thompson on December 30, 1975; U.S. Patent No. 4,324,246 entitled "Disposable Absorbent Article Having A Stain Resistant Topsheet", which issued to Mullane, et al. April 13, 1982; U.S. Patent No. 4,342,314 entitled "Resilient Plastic Web Exhibiting Fiber-Like Properties", which issued to Radel, et al. August 3, 1982; U.S. Patent No. 4,463,045 entitled "Macroscopically Expanded Three-Dimensional Plastic Web Exhibiting Non-Glossy Visible Surface and Cloth-Like Tactile Impression", which issued to Ahr, et al. July 31, 1984; and U.S. Patent No. 5,006,394 "Multilayer Polymeric Film" issued to Baird on April 9, 1991. -Textured Web” filed April 26, 2011 and U.S. Patent No. 8,241,543 titled “Method And Apparatus For Making An Apertured Web” issued to O'Donnell, et al. on August 14, 2012.
[0064] In one example, the perforated film wall material has a basis weight of less than 500 g/m ² and/or less than 400 g/m ² and/or less than 200 g/m ² and/or less than 100 g/m 2 m ² as measured.
[0065] "Conditions of intended use", as used herein, means the temperature, physical, chemical, and/or mechanical conditions to which a pouch and/or its apertured film wall material of the present invention is exposed. when the sachet is used for one or more of the intended purposes. For example, if a pouch of the present invention is designed for use in a washing machine for laundry care purposes, the intended use conditions include those temperature, chemical, physical, and/or mechanical conditions present in a washing machine, including any washing water, during a laundry washing operation. In another example, if a sachet of the present invention is intended for use by a human as a shampoo for hair care purposes, the conditions of intended use will include such temperature, chemical, physical and/or mechanical conditions. present during shampooing of human hair. Likewise, if a pouch of the present invention is intended for use in a dishwashing operation, either by hand or by a dishwasher, the conditions of intended use will include temperature, chemical, physical and /or mechanics present in dishwashing water and/or a dishwasher, during the dishwashing operation.
[0066] An "active agent", as used herein, means an additive that produces an intended effect in an environment external to the pouch of the present invention, such as when the pouch is exposed to the conditions of intended use. In one example, an active agent includes an additive that treats a surface, such as a hard surface (i.e., kitchen countertops, bathtubs, toilets, toilet bowls, sinks , floors, walls, teeth, cars, windows, mirrors, dishes) and/or a soft-touch surface (i.e., fabric, hair, skin, mats, crops, plants). In another example, an active agent includes an additive that creates a chemical reaction (i.e., foaming, fizzing, coloring, warming, cooling, foaming, sanitizing and/or clarifying and/or chlorination, such as water clarification and/or water disinfection and/or water chlorination). In yet another example, an active agent includes an additive that treats an environment (ie, deodorizes, purifies, perfumes the air).
[0067] "Treat" as used herein in relation to treating a surface or environment means that the active agent provides a beneficial effect to a surface or environment. Treating includes immediately regulating and/or improving the appearance, cleanliness, odor, purity and/or feel of a surface or environment. In one example, treating in reference to treating a surface of keratinous tissue (e.g., skin and/or hair) means immediately regulating and/or improving the cosmetic appearance and/or feel of the surface of the keratin tissue. For example, "regulating the condition of the skin, hair, or nails (keratinous tissue surface)" includes: thickening of the skin, hair, or nails (e.g., developing epidermis and/or dermis and/or the subdermal layers [e.g., subcutaneous fat or muscle] of the skin, and possibly the keratinous layers of the nail and hair shaft) to reduce atrophy of the skin, hair, or nails, increase the convolution of the dermal-epidermal border (also known as the dermal papilla network), prevention of loss of skin or hair elasticity (loss, damage and/or inactivation of functional skin elastin) such as elastosis, sagging, return loss of skin or hair after deformation; a melanin- or non-melanin-related change in the color of the skin, hair, or nails such as under the dark circles of the eyes, coverage of large spots (eg, irregular red coloring due, for example, to rosacea ) (hereafter referred to as "diffuse redness"), yellowish complexion (pale color), discoloration caused by telangiectasia or dark circles, and graying of the hair.
[0068] In another example, treating means removing stains, soils and/or odors from textile articles, such as clothes, towels, linens, and/or hard surfaces, such as countertops and/or crockery, including pots and pans.
[0069] A "fabric care active" as used herein means an active agent which, when applied to a textile article, provides a benefit and/or enhancement to the textile article. Non-limiting examples of benefits and/or improvements to a textile article include cleaning (e.g., by surfactants), stain removal, stain reduction, wrinkle removal, restoring anti-static, wrinkle resistance, permanent pressing, wear reduction, wear resistance, anti-pilling, anti-pilling, anti-soiling, soil resistance (including, soil release), shape retention, shrinkage reduction, softness, fragrance, antibacterial effect, antiviral effect, odor resistance, and odor elimination.
[0070] "Active dishwashing agent" as used herein means an active agent which, when applied to dishes, glassware, pots, pans, utensils, and/or cooktops provides a benefit and/or improvement to dishes, glassware, plasticware, pots, pans and/or hotplates. Non-limiting examples of beneficial effects and/or improvements to dishes, glassware, plasticware, pots, pans, utensils, and/or stove tops include the removal of food and/or or soil, cleaning (e.g., with surfactants), stain removal, stain reduction, grease removal, water spot removal and/or stain prevention. water, glass and metal care, sanitation, shine, and polishing.
[0071] A "hard-surface active agent", as used herein, means an active agent which, when applied to floors, countertops, sinks, windows, mirrors, showers, baths, and/or toilets , provides a beneficial effect and/or improvement to floors, countertops, sinks, windows, mirrors, showers, baths, and/or toilets. Non-limiting examples of beneficial effects and/or improvements to floors, countertops, sinks, windows, mirrors, showers, baths, and/or toilets include food and/or soil removal, cleaning ( for example, by surfactants), stain removal, stain reduction, grease removal, water spot removal and/or water spot prevention, limescale, disinfection, shine, polishing, and refreshing.
[0072] "Water-soluble" and/or "water-soluble material", as used herein, means a material which is miscible in water. In other words, a material that is capable of forming a stable homogeneous solution (separates no more than 5 minutes after forming the homogeneous solution) with water under ambient conditions.
[0073] “Ambient conditions,” as used herein, means 23°C ± 1.0°C and 50% ± 2% relative humidity.
[0074] "Weight average molecular weight" as used herein means weight average molecular weight as determined using gel filtration chromatography according to the protocol found in Colloids and Surfaces A. Physico Chemical & Engineering Aspects, Vol. 162, 2000, pages 107-121.
[0075] A "trigger condition", as used herein in an example, means anything which, as an action or event, serves as a stimulus and initiates or precipitates a change in the pouch of the present invention or its material. of the apertured film wall material, such as loss or change in the physical structure of the apertured film wall material of the pouch and/or rupture and and release of an additive, such as an active agent from the pouch. In another example, the trigger condition may be present in an environment, such as water, when a sachet of the present invention is added to water. In other words, nothing changes in the water except that the sachet of the present invention is present therein.
[0076] "By weight on a dry apertured film wall material basis" and/or "by weight on a dry pouch basis" means the "dry weight" of the apertured film wall material and/or pouch, respectively, measured according to the water content test method described herein.
[0077] "Different from" or "different", as used herein, means, with respect to a material, such as an active agent, being chemically, physically and/or structurally different from another material, such as another active agent. For example, starch is different from cellulose. However, different molecular weights of the same material, such as different molecular weights of starch, are not different materials from each other for purposes of the present invention.
[0078] "Machine Direction" or "MD" as used herein refers to the direction parallel to the flow of the apertured film wall material through the apertured film wall material making machine.
[0079] "Cross machine direction" or "CD" as used herein refers to the direction perpendicular to the machine direction in the same plane of the apertured film wall material.
[0080] As used herein, the articles "a" and "a" when used herein, for example, "an anionic surfactant" or "a fiber" are intended to refer to one or more of the material which is claimed or described.
[0081] All percentages and ratios are by weight unless otherwise stated. All percentages and ratios are calculated on a total composition basis, unless otherwise stated.
[0082] Unless otherwise stated, all constituent or composition levels are by reference to that constituent or composition level, and exclude impurities, e.g., residual solvents or by-products, which may be present in sources available in trade.
[0083] As illustrated in Figures 1 and 2, an example of a pouch 10 of the present invention comprises a film wall material 12, such as an apertured film wall material 14 comprising a plurality of openings/holes (perforations ) 16, for example, a water-soluble perforated film wall material. The film wall material 12 defines an internal volume 18 of the pouch 10. Any contents 20 of the pouch 10, for example, active agents in powder form, laundry detergent compositions, dishwashing, and other cleaning compositions, can be contained and retained within the internal volume 18 of pouch 10 at least until pouch 10 ruptures. In one example, pouch 10 ruptures between and/or around holes 16 within apertured film wall material 14, for example, during use and releases its contents 20, as shown in Figure 2.
[0084] The pouch 10 under conditions of intended use is shown in Figure 2. Figure 2 illustrates the scenario when a user adds the pouch 10 to a liquid 22, such as water, in a container 24, such as washing machine or dishwasher, so as to create a washing liquor. As illustrated in Figure 2, when the pouch 10 comes into contact with the liquid 22, the pouch 10 ruptures, such as by dissolving portions of the apertured film wall material 14, causing at least a portion of , or even all, its content 20 is released from the internal volume 18 of the bag 10.
[0085] Figure 3 illustrates another example of a pouch 10 of the present invention. The pouch 10 includes a film wall material 12 comprising an apertured film wall material 14, for example, a water-soluble apertured film wall material, which initially forms an open pouch by being configured such that the internal volume 18 is partially defined by the perforated film wall material 14. Additional film wall material 12, such as additional perforated film wall material 14 and/or additional unperforated film wall material, may be associated to the first apertured film wall material 14 to further define the internal volume 18 producing a closed pouch. The additional film wall material 12 may be bonded, as sealed, to the apertured film wall material 14 thereby trapping any contents (not shown) within the internal volume 18 of the pouch 10.
[0086] In one example, the pouch of the present invention may be a single compartment pouch as shown in Figures 1-3.
[0087] In another example as illustrated in Figure 4, the sachet 10 of the present invention may be a multi-compartment sachet 10 comprising two or more compartments 26, 28 which may contain different active agents and/or different compositions and/or the same active agents and/or the same compositions. For example, one compartment 26 may contain a fast dissolving active agent and another compartment 28 may contain a slower dissolving active agent relative to the fast dissolving active agent. In yet another example, each of the compartments 26, 28 may include different film wall materials 12 which dissolve at different rates such that the contents (not shown) of the different compartments 26, 28 are released from their respective compartments. respective compartments 26, 28 at different times during use. This staggered release profile could be used if incompatible materials are contained in the different compartments 26, 28. As shown in Figure 4, one of the compartments 28 may include an apertured film wall material 14, such as a water-soluble apertured film wall, and the other compartment 26 may comprise an unperforated water-soluble film wall material 30, such as a water-soluble unperforated film wall material. In yet another example, a powder composition, such as a powder detergent composition, may be contained in compartment 28 and a liquid composition, such as a liquid detergent composition, may be contained in compartment 26.
[0088] In one example, the pouch of the present invention further comprises a separate inner pouch present within the internal volume of the outer pouch. The inner pouch may include a film wall material and/or a fibrous wall material that defines a second internal volume. In one example, the inner pouch includes an apertured film wall material. In another example, the inner pouch comprises an unperforated film wall material. The second internal volume of the inner sachet may comprise one or more active agents which may be the same or different from any active agents present in the internal volume of the outer sachet.
[0089] In one example, the inner pouch has a mean break time equal to or greater than the mean break time of the outer pouch as measured according to the break test method described herein.
[0090] In yet another example of the present invention, as illustrated in Figures 6 and 7, the pouch 10 may comprise a film wall material 12 comprising an apertured film wall material 14 that defines an internal volume 18 that contains one or several additional pouches, for example, a film pouch 32 comprising an unperforated film wall material, such as a water-soluble unperforated film wall material. In addition to the film pouch 32, the pouch 10 may include other contents such as powdered detergent compositions and/or one or more active agents. The film sachet 32 may comprise one or more active agents, for example, powdered detergent compositions and/or liquid detergent compositions and/or active agents. The film pouch 32 can be released upon rupture of the pouch 10, such as during use. The contents of the sachet 10 and the contents of the film sachet 32 may be the same or different. In another example, the additional pouch within pouch 10, film pouch 32, may comprise apertured film wall material 14 and/or a combination of non-perforated film wall material 30 and perforated film wall 14.
[0091] The sachet 10 of Figure 6 under conditions of intended use is shown in Figure 7. Figure 7 illustrates a scenario when a user adds the sachet 10 to a liquid 22, such as water, in a container 24, such as a washing machine or dishwasher, so as to create a wash liquor. As illustrated in Figure 7, when the pouch 10 comes into contact with the liquid 22, the pouch 10 ruptures, for example, by dissolution of a portion of the apertured film wall material 14 and initial formation of the fragments of film material. film wall 12, such that at least part, if not all, of its contents, e.g., film pouch 32, is released from the internal volume 18 of pouch 10.
[0092] The pouch 10 of the present invention may be of any shape and size as long as it is suitable for its intended use.
[0093] In one example, the apertured film wall material may have a uniform or substantially uniform thickness across the entire pouch.
[0094] In another example, the pouches of the present invention may exhibit a % weight loss of less than 10% and/or less than 5% and/or less than 3% and/or less than 1% and/or less than 0. .5% and/or less than 0.1% and/or less than 0.05% and/or about 0% as measured by the shake test method described herein.
[0095] In one example, the apertured film wall materials of the pouches of the present invention may exhibit a % weight loss of less than 10% and/or less than 5% and/or less than 3% and/or less than 1% and/or less than 0.5% and/or less than 0.1% and/or less than 0.05% and/or about 0% as measured by the shake test method described herein and a resistance geometric mean tensile strength greater than 0.1 kN/m and/or greater than 0.25 kN/m and/or greater than 0.4 kN/m and/or greater than 0.45 kN/m and/or greater than 0.50 kN/m and/or greater than 0.75 kN/m as measured by the tensile test method described herein.
[0096] In yet another example, the apertured film wall materials of the pouches of the present invention may exhibit a % weight loss of less than 10% and/or less than 5% and/or less than 3% and/or less than 1% and/or less than 0.5% and/or less than 0.1% and/or less than 0.05% and/or about 0% as measured by the shake test method described herein and a geometric mean elongation (GM) at break of less than 1000% and/or less than 800% and/or less than 650% and/or less than 550% and/or less than 500% and/or less than 475% as as measured by the tensile testing method described herein.
[0097] Table 1 below shows the % weight loss as measured according to the shake test method described herein of exemplary pouches of the present invention.
[0098] Sample Number of holes added % weight loss Bag of invention 1 10 <0.05% Bag of Invention 2 20 <0.05%
[0099] In one example, the pouch of the present invention comprising an apertured film wall material, for example, a water-soluble apertured film wall material, exhibits a mean break time of less than 240 seconds and/or less than 120 seconds and/or less than 120 seconds. or less than 60 seconds and/or less than 30 seconds and/or less than 10 seconds and/or less than 5 seconds and/or less than 2 seconds and/or instantaneous as measured according to the rupture test method described herein.
[0100] Table 2 below shows the mean break time as measured according to the break test method described herein of exemplary pouches of the present invention.
[0101] Sample Number of holes added Mean break time (seconds) Bag of invention 1 10 11.7 Bag of Invention 2 20 11.0
[0102] The apertured film wall material of the present invention can be used as is or can be coated with one or more active agents.
[0103] In one example, the perforated film wall material of the present invention has a thickness greater than 0.01 mm and/or greater than 0.05 mm and/or greater than 0.1 mm and/or up to about 100 mm and/or up to about 50 mm and/or up to about 20 mm and/or up to about 10 mm and/or up to about 5 mm and/or up to about 2 mm and/or up to about 0.5 mm and/or up to about 0.3 mm as measured by the thickness test method described herein.
[0104] In another example, the perforated film wall material of the present invention exhibits a geometric mean tensile (GM) strength greater than 0.1 kN/m and/or greater than 0.25 kN/m and/or greater than than 0.4 kN/m and/or greater than 0.45 kN/m and/or greater than 0.50 kN/m and/or greater than 0.75 kN/m as measured according to the test method of traction described here.
[0105] In another example, the perforated film wall material of the present invention exhibits a geometric mean (GM) elongation at break of less than 1000% and/or less than 800% and/or less than 650% and/or less than 550% and/or less than 500% and/or less than 475% as measured by the tensile test method described herein.
[0106] Table 3 shows the geometric mean tensile strength and geometric mean elongation of two examples of perforated film wall materials of the present invention and two non-perforated film wall materials of the prior art.
[0107] Sample Perforated number of holes added Geometric Mean Tensile Strength (kN/m) Geometric mean elongation at break (%) Perforated film of the invention 1 Yes - 10 1.01 351.8% Invention Perforated Film 2 Yes - 20 1.25 356.5% Prior Art Unperforated Film 1 No None 1.14 410.8% Prior Art Unperforated Film 2 No - 1 1.06 276.8%
[0108] In one example, the apertured film wall material of the present invention exhibits an average dissolution time of less than 24 hours and/or less than 12 hours and/or less than 6 hours and/or less than 1 hour (3600 seconds). and/or less than 30 minutes and/or less than 25 minutes and/or less than 20 minutes and/or less than 15 minutes and/or less than 10 minutes and/or less than 5 minutes and/or more than 1 second and /or greater than 5 seconds and/or greater than 10 seconds and/or greater than 30 seconds and/or greater than 1 minute as measured according to the dissolution test method described herein.
[0109] In one example, the apertured film wall material of the present invention exhibits an average dissolution time per g/m ² of sample of about 10 seconds/(g/m ² ) or less, and/or about 5, 0 s/(g/m ² ) or less, and/or about 3.0 s/(g/m ² ) or less, and/or about 2.0 s/(g/m ² ) or less, and/ or about 1.8 s/(g/m ² ) or less, and/or about 1.5 s/(g/m ² ) or less as measured according to the dissolution test method described herein.
[0110] In one example, the apertured film wall material comprises a polymer, such as a film-forming polymer. The apertured film wall material can, for example, be obtained by casting, blow molding, extrusion or blow molding of the polymeric material, as is known in the art.
[0111] Non-limiting examples of polymers, copolymers and/or derivatives thereof suitable for use as film wall material are selected from the group consisting of: polyvinyl alcohols, polyvinylpyrrolidone, polyalkylene oxides, acrylamide, acrylic acid, cellulose, cellulose ethers, cellulose esters, cellulose amides, polyvinyl acetates, polycarboxylic acids and salts, polyamino or peptide acids, polyamides, polyacrylamide, maleic/acrylic acid copolymers , polysaccharides including starch and gelatin, natural gums for example xanthum gum and carragum gum.
[0112] In one example, the polymers are chosen from polyacrylates and water-soluble acrylate copolymers, methylcellulose, sodium carboxymethylcellulose, dextrin, ethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, maltodextrin, polymethacrylates. In another example, the polymers are selected from polyvinyl alcohols, copolymers of polyvinyl alcohol and hydroxypropyl methylcellulose (HPMC), and combinations thereof. In one example, the level of polymer, for example a polyvinyl alcohol polymer, in the bag material is preferably at least 60% by weight relative to the weight of the bag material.
[0113] In one example, the apertured film wall material comprises a hydroxyl polymer. Non-limiting examples of suitable hydroxyl polymers include pullulan, hydroxypropyl methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, sodium alginate, xanthan gum, tragacanth gum, guar gum, acacia gum, gum arabic, polyacrylic acid, dextrin, pectin, chitin, collagen, gelatin, zein, gluten, soy protein, casein, polyvinyl alcohol, starch, starch derivatives, hemicellulose, hemicellulose derivatives, proteins, chitosan, chitosan derivatives, polyethylene glycol, tetramethylene ether glycol, hydroxymethylcellulose, and mixtures thereof.
[0114] The polymer can have a weight-average molecular mass ranging from approximately 1,000 to approximately 1,000,000 g/mol and/or from approximately 10,000 to approximately 300,000 g/mol and/or from approximately 20,000 to approximately 150,000 g/mol.
[0115] Polymer blends can also be used as the film wall material. This can be advantageous for controlling the mechanical and/or dissolution properties of the compartments or the sachet, depending on its application and the needs required. Suitable blends include, for example, blends in which one polymer has a higher water solubility than another polymer, and/or one polymer has a higher mechanical strength than another polymer. Also suitable are blends of polymers having different weight average molecular weights, for example, a blend of polyvinyl alcohol or a copolymer thereof of weight average molecular weight ranging from about 10,000 to about 40,000 g/mol and/or about 20,000 g/mol, and polyvinyl alcohol or a copolymer thereof with a weight average molecular weight ranging from about 100,000 to about 300,000 g/mol and/or about 150,000 g/mol.
[0116] Compositions of polymer blends are also suitable within the scope of the present invention, comprising for example hydrolytically degradable and water-soluble mixtures such as polylactide and polyvinyl alcohol, obtained by mixing polylactide and polyvinyl alcohol, typically comprising approximately 1 to 35% by weight polylactide and about 65% to 99% by weight polyvinyl alcohol.
[0117] In one example, the polymers include polymers that are about 60% to about 98% hydrolyzed and/or about 80% to about 90% hydrolyzed so as to improve the dissolution characteristics of the material.
[0118] In another example, the film wall materials include polyvinyl alcohol films known as Monosol M8630, marketed by Chris-Craft Industrial Products of Gary, Ind., USA, and polyvinyl alcohol films having corresponding solubility and deformation characteristics. Other suitable films within the scope of the present invention include the films known under the trademark PT film and/or the films of the K-series range supplied by Aicello, or the VF-HP film supplied by Kuraray.
[0119] The film wall material may also include one or more additive ingredients. It may for example be advantageous to add plasticizers, for example glycerol, ethylene glycol, diethylene glycol, propylene glycol, sorbitol and mixtures thereof. Other additives can include one or more active agents.
[0120] In one example, the apertured film wall material and/or dry pouch made therefrom comprises less than 20% and/or less than 15% and/or less than 10% and/or less than 7% and/or less than 5% and/or less than 3% and/or up to 0% and/or up to more than 0% based on the dry weight of the perforated film wall material and/or the sachet of moisture, such as water, eg, free water, as measured by the water content test method described herein. In one example, the pouch has a water content ranging from about 0% to 20% as measured by the water content test method described herein.
[0121] Active agents are a class of additives that are designed and intended to provide a benefit to something other than the apertured film wall material and/or the pouch itself, such as providing a benefit to an environment external to the perforated film wall and/or bag. The active agents can be any suitable additive which produces an intended effect under the conditions of intended use. For example, the active agent may be selected from the group consisting of: body cleansing and/or conditioning agents such as hair care agents such as shampoo agents and/or hair dye agents, hair conditioning, skin care agents, sunscreen agents, and skin conditioning agents; laundry care and/or conditioning agents such as fabric care agents, fabric conditioning agents, fabric softening agents, fabric anti-crease agents, antistatic fabric care agents fabric care soil release agents, soil release agents, dispersing agents, suds suppressing agents, suds boosters, anti-foam agents, and freshening agents fabrics ; liquid and/or powdered dishwashing agents (for hand dishwashing and/or automatic dishwashing applications), hard surface care agents, and/or conditioning and/or polishing agents; other cleaning and/or conditioning agents such as antimicrobial agents, antibacterial agents, antifungal agents, fabric tinting agents, perfume, bleaching agents (such as oxygen bleaches, hydrogen peroxide, percarbonate bleaches, perborate bleaches, chlorine bleaches), bleach activators, chelating agents, builders, lotions, brightening agents, air care agents, carpet care agents, fade inhibiting agents, clay soil removers, antiredeposition agents, soil release polymers, polymeric dispersants, alkoxylated polyamine polymers, alkoxylated polycarboxylate polymers, amphiphilic graft copolymers, dissolution aids, buffer systems, water softening agents, water hardening agents, pH adjusting agents, enzymes, flocculating agents, effervescent agents, preservatives, cosmetic agents, make-up removing agents, foaming agents, deposition aid agents, coacervate forming agents, clays, thickening agents, latexes, silicas, desiccants, odor control agents, antiperspirant agents, cooling agents, warming agents, absorbent gel agents, anti-inflammatory agents, dyes, pigments, acids, and bases; liquid treatment actives; active agricultural agents; industrial active agents; ingestible active agents such as medicinal agents, tooth whitening agents, tooth care agents, mouthwash agents, periodontal gum care agents, edible agents , dietetic agents, vitamins, minerals; water treatment agents such as water clarifying agents and/or water sanitizing agents, and mixtures thereof.
[0122] Non-limiting examples of suitable cosmetic agents, skin care agents, skin conditioning agents, hair care agents, and hair conditioning agents are described in CTFA Cosmetic Ingredient Handbook , Second Edition, The Cosmetic, Toiletries, and Fragrance Association, Inc. 1988, 1992.
[0123] One or more classes of chemicals may be useful for one or more of the active agents listed above. For example, surfactants can be used for any number of the active agents previously described. Similarly, bleaches can be used for fabric care, hard surface cleaning, dishwashing and even teeth whitening. For this reason, those skilled in the art will appreciate that the active agents will be selected based on the desired intended use of the sachet of the present invention.
[0124] For example, if a sachet is to be used for hair care and/or conditioning, then one or more suitable surfactants, such as a foaming surfactant, could be selected to provide the desired beneficial effect to a consumer when are exposed to the conditions of intended use of the pouch.
[0125] In one example, if the sachet is designed or intended to be used for washing clothes in a laundry operation, then one or more surfactants and/or enzymes and/or builders and/or fragrances and/or stain removers Appropriate foam and/or bleaching agents could be chosen to provide the desired beneficial effect to a consumer when exposed to the conditions of intended use of the pouch. In another example, if the sachet is designed to be used for washing clothes in a laundry operation and/or for washing dishes in a dishwashing operation, then the sachet may comprise a composition laundry detergent or dishwashing detergent composition or active agents used in such compositions. In yet another example, if the sachet is designed for use in cleaning and/or sanitizing a toilet bowl, then the sachet may comprise a toilet bowl cleaning composition and/or an effervescent composition and/or active agents used in such compositions.
[0126] In one example, the active agent is selected from the group consisting of: surfactants, bleaching agents, enzymes, suds suppressors, suds boosters, fabric softening agents, denture cleaning agents, hair, hair care agents, individual care agents, tinting agents, effervescent agents, and mixtures thereof.
[0127] In another example, the active agent is in the form of a powder and/or a particulate material.
[0128] In one example, the sachet of the present invention comprises at least 5 g and/or at least 10 g and/or at least 15 g of active agents within its internal volume.
[0129] In another example, the sachet of the present invention includes bleaches, citric acid, and perfume.
[0130] The pouch of the present invention may be made by any suitable method known in the art so long as an apertured film wall material, e.g., a water-soluble apertured film wall material of the present invention is used to form at least part of the sachet.
[0131] In one example, the pouch can be made using any suitable equipment and process. Single compartment pouches can be made by vertical or horizontal form fill techniques commonly known in the art. Non-limiting examples of suitable methods of making water-soluble pouches, although including non-perforated film wall materials, are described in EP 1504994, EP 2258820, and application WO02/40351 (all assigned to The Procter & Gamble Company).
[0132] In another example, the process for preparing the pouches of the present invention may include the step of forming the pouches from an apertured film wall material in a series of molds, the molds being positioned an intertwined way. By shaping, it is typically meant that the perforated film wall material is placed over and into the molds, for example, the perforated film wall material may be vacuum drawn into the molds, so that the wall material in perforated film is flush with the internal walls of the moulds. This is commonly known as vacuum forming. Another method is thermoforming to mold the perforated film wall material into the shape of the mold.
[0133] Thermoforming typically involves the step of forming an open pouch in a mold under the application of heat, which allows the apertured film wall material used to make the pouches to take the shape of the molds. This process can also be used to create perforations in the film wall material so as to form perforated film wall materials.
[0134] Vacuum forming typically includes the step of applying a (partial) vacuum (reduced pressure) to a mold which draws the apertured film wall material into the mold and causes the apertured film wall material takes the shape of the mould. The pouch forming process can also be performed by first heating the perforated film wall material and then applying reduced pressure, eg a (partial) vacuum.
[0135] The apertured film wall material is typically sealed by any sealing means. For example, by heat sealing, wet sealing or by pressure sealing. In one example, a sealing source is contacted with the apertured film wall material and heat or pressure is applied to the apertured film wall material, and the apertured film wall material is sealed. The sealing source can be a solid object, for example, a metal, plastic or wooden object. If heat is applied to the apertured film wall material during the sealing process, then said sealing source is typically heated to a temperature ranging from about 40°C to about 200°C. If pressure is applied to the apertured film wall material during the sealing process, then the sealing source typically applies pressure ranging from about 1 x 10 ⁴ Nm ^-2 (10 kPa) to about 1 x 10 ⁶ Nm ^-2 (1 MPa), to perforated film wall material.
[0136] In another example, the same piece of perforated film wall material can be folded, and sealed to form the pouches. Typically, more than one piece of apertured film wall material can be used in the process. For example, a first piece of the apertured film wall material can be vacuum drawn into the molds so that the apertured film wall material is flush with the interior walls of the molds. A second piece of perforated or unperforated film wall material may be positioned such that it at least partially overlaps and/or completely overlaps the first piece of perforated film wall material. The first piece of apertured film wall material and the second piece of apertured film wall material are sealed together. The first piece of apertured film wall material and the second piece of film wall material may be the same or different.
[0137] In another example of making a pouch of the present invention, a first piece of apertured film wall material may be vacuum drawn into the molds so that the apertured film wall material is flush with the interior walls of the molds. . One or more active agents and/or detergent composition, may be added to, for example, poured into, opened pouches (internal volume) in the moulds, and a second film wall material, perforated or unperforated, may be placed on the active agents and/or the detergent composition and in contact with the first apertured film wall material and the first piece of apertured film wall material and the second piece of apertured film wall material are sealed together the other to form sachets, typically in such a way as to at least partially surround and/or completely surround its internal volume and the active agents and/or the detergent composition within its internal volume.
[0138] In another example, the pouch manufacturing process can be used to prepare pouches that have an internal volume that is divided into more than one compartment, typically known as multi-compartment pouches. In the multi-compartment pouch method, the perforated film wall material is folded at least twice, or at least three pieces of perforated film wall materials are used, or at least two pieces of perforated film wall materials are used, at least one piece of perforated film wall material being folded at least once. The third piece of pouch perforated film wall material, when present, or a folded piece of perforated film wall material, when present, creates a barrier layer which, when the pouch is sealed, divides the internal volume of said sachet into at least two compartments.
[0139] In another example, a method of making a multi-compartment pouch includes placing a first piece of apertured film wall material in a series of molds, for example, the first piece of Perforated film can be vacuum drawn into the molds so that the perforated film wall material is flush to the inner walls of the molds. The active agents are typically dumped into the open pouch formed by the first piece of perforated wall film material in the molds. A pre-sealed compartment made of a perforated film wall material can then be placed above the molds containing the active agents. These pre-sealed compartments and said first piece of perforated film wall material can be sealed together to form multi-compartment pouches, eg, dual-compartment pouches.
[0140] The sachets obtained by the methods of the present invention can be water-soluble. Sachets are typically closed structures, made of the perforated film wall material described herein, typically enclosing an internal volume which may include one or more active agents and/or a detergent composition. The apertured film wall material is suitable for containing active agents, for example, without allowing release of the active agents from the pouch prior to contact of the pouch with water. The exact execution will depend on, for example, the type and amount of active agents in the sachet, the number of compartments in the sachet, the characteristics required of the sachet to hold, protect and dispense or release the active agents.
[0141] For sachets with multiple compartments, the active agents and/or compositions contained in the various compartments can be identical or different. For example, incompatible ingredients may be contained in different compartments.
[0142] The sachets of the present invention may be of such a size that they advantageously contain either a unit dose quantity of the active agents therein, suitable for the operation required, for example washing, or only a partial dose, to allow the consumer greater flexibility to vary the amount used, for example, depending on the size and/or soil level of the wash load. The shape and size of the pouch is typically determined, at least to some extent, by the shape and size of the mould.
[0143] The multi-compartment pouches of the present invention may additionally be packaged in an outer package. The outer packaging may be a see-through or partially-through container, for example, a transparent or translucent bag, tub, crate or bottle. The packaging may be plastic or made of any other suitable material, provided that the material is strong enough to protect the sachets during transport. This type of packaging is also very useful because the user does not have to open the packaging to see how many sachets are left in the packaging. According to another possibility, the packaging can have an opaque outer packaging, on which indications or possible illustrations represent the visually distinct contents of the packaging.
[0144] Examples of making a sachet
[0145] An example of a pouch of the present invention can be made as follows. Cut two layers of film wall material at least twice the size of the pouch you plan to make. For example, if the finished pouch size has a plan footprint of approximately 52 inches x 2 inches (5.08 cm x 5.08 cm), then the film wall materials are cut to 5 inches x 5 inches (12 .7cm x 12.7cm). Next, place both layers one on top of the other on the heating element of an Impulse sealer (Impulse Sealer model TISH-300 from TEW Electric Heating Equipment CO., LTD, 7F , No.140, Sec.2, Nan Kang Road, Taipei, Taiwan). The position of the layers on the heating element should be where a side closure junction is to be created. Close the sealer arm for 1 second to seal the two layers together. In a similar fashion, seal two more sides to create two more side closure joints. With all three sides sealed, the two film wall materials form a pocket. Next, add the appropriate amount of powder to the pocket, then seal the last side to create the last side seal. A sachet is now formed. For most film wall materials that are less than 0.2 mm thick, a heat control setting of 4 and a heat time of 1 second are used. Depending on the film wall materials, the heating temperature and heating time may need to be adjusted to achieve a desirable seal. If the temperature is too low or the heating time is not long enough, the film wall material may not melt sufficiently and the two layers easily separate; if the temperature is too high or the heating time is too long, pinholes may form at the sealed edge. Sealing equipment conditions should be adjusted so that the layers melt and form a seal, but do not introduce negative features such as pinholes on the seal edge. Once the seal bag is formed, scissors are used to cut away the excess material and leave a 1-2mm edge on the outside of the seal bag.
[0146] Sachets of the present invention comprising one or more active agents, for example, one or more fabric care active agents according to the present invention can be used in a method for treating a textile article. The process for treating a textile article may comprise one or more steps selected from the group consisting of: (a) pretreating the textile article before washing the textile article; (b) contacting the textile article with a lye formed by contacting the sachet with water; (c) contacting the textile article with the sachet in a dryer; (d) drying the textile article in the presence of the sachet in a dryer; and (e) combinations thereof.
[0147] In some embodiments, the method may further comprise the step of pre-wetting the sachet before bringing it into contact with the textile article intended to be pretreated. For example, the sachet can be pre-moistened with water, then adhered to a part of the textile article comprising a stain which must be pretreated. As a variant, the textile article can be moistened and the sachet placed or adhered to it. In some embodiments, the method may further include the step of selecting only a portion of the pouch for use in treating a textile article. For example, if a single textile article is to be treated, a portion of the pouch may be cut and/or torn and either placed or adhered to the textile article or placed in water so as to form a relatively small amount detergent which is then used to pre-treat the textile article. In this way, the user can customize the fabric treatment process according to the task to be performed. In some embodiments, at least a portion of a sachet can be applied to the textile article to be treated using a device. Exemplary devices include, but are not limited to, brushes, sponges and ribbons. In yet another embodiment, the sachet can be applied directly to the surface of the textile article. Any of one or more of the aforementioned steps may be repeated to achieve the desired beneficial fabric treatment effect for a textile article.
[0148] Testing methods
[0149] Unless otherwise specified, all tests described herein including those described under the Definitions section and the test methods that follow are performed on samples that have been conditioned in a conditioned room at a temperature of 23°C ± 1.0°C and relative humidity of 50% ± 2% for a minimum of 2 hours before testing. The samples tested are “usable units”. "Usable units" as used herein means sheets, flats from roll stock, pre-processed flats, sheet and/or single or multi-compartment products . All tests are carried out under the same environmental conditions and in such a conditioned room. Do not test specimens that have defects such as creases, tears, holes, and the like. Samples packaged as described herein are considered dry samples (such as “dry pouches”) for testing purposes. All instruments are calibrated to manufacturer specifications.
[0150] Basis weight test method
[0151] The basis weight of an apertured film wall material is measured in stacks of twelve usable units using a top loading analytical balance with a resolution of ±0.001g. The scale is protected from drafts and other disturbances by using a draft shield. A precision cutting die, measuring 3.500 in ± 0.0035 in by 3.500 in ± 0.0035 in (8.89 cm ± 0.0089 cm by 8.89 cm ± 0.0089 cm) is used to prepare all samples.
[0152] With a precision cutting die, cut the samples into squares. Combine the cut squares to form a stack twelve samples thick. Measure the mass of the sample stack and record the result to plus or minus 0.001 g.
[0153] Basis weight is calculated in pounds/3000 ^ft2 or g/ ^m2 as follows: Basis weight is calculated in pounds/3000 ^ft2 or g/ ^m2 as follows: Surface mass = (Mass of stack) / [(Area of 1 square in stack) x (Number of squares in stack) For example, Basis mass (pounds/3000 ft ² ) = [[Pile mass (g) / 453.6 (g/lbs)] / [12.25 (in ² ) / 144 (in ² /ft ² ) x 12] ] x 3000 Where, Surface mass (g/m ² ) = Mass of the pile (g) / [79.032 (cm ² ) / 10,000 (cm ² /m ² ) x 12]
[0154] Indicate the result within plus or minus 0.1 lb/3000 ft ² or 0.1 g/m ² . The dimensions of the sample can be changed or varied using a similar precision cutter as mentioned previously, so as to have at least 100 square inches (645.16 cm ² ) of sample area in the battery.
[0155] Water content test method
[0156] The water content (moisture) present in a perforated film wall material and/or pouch is measured using the following water content test method. A perforated film wall material or part thereof in the form of a pre-cut sheet and/or a bag (“sample”) is placed in a conditioned room at a temperature of 23°C ± 1, 0°C and 50% ± 2% relative humidity for at least 24 hours before testing. Each sample has an area of at least 4 square inches (25.8 cm ² ), but is of a size small enough to fit comfortably on the weighing pan of the balance. Under the above temperature and humidity conditions, using a balance with at least four decimal places, the sample weight is recorded every five minutes until a change of less than 0.5% from previous weight is detected for a period of 10 minutes. The final weight is recorded as the "balance weight". Within 10 minutes, the samples are placed in the forced air oven above a grid for 24 hours at 70°C ± 2°C at a relative humidity of 4% ± 2% for drying. After 24 hours of drying, the sample is removed and weighed within 15 seconds. This weight is referred to as the “dry weight” of the sample.
[0157] The water content (moisture) of the sample is calculated as follows:
[0158] The % water (moisture) in the sample is averaged for 3 replicates to give the indicated % water (moisture) in the sample. Report results to plus or minus 0.1%.
[0159] Break test method
[0160] Apparatus and materials - 2000 mL glass beaker 50 (approximately 7.5 inches (19.05 cm) high by 5.5 inches (13.97 cm) -Plate for Magnetic Stirrer 52 (Labline, Melrose Park, IL, Model No. 1250 or equivalent) - Magnetic Stir Bar 54 (2 inches (5.08 cm) long by 3/8 inch (0.9525 cm) diameter, Teflon coated) -Thermometer (1 to 100°C +/- 1°C) - Clamp for 1.25 inch (3.175 cm) paper binding - Alligator Clip (about one inch (2.54cm) long) 56 -58 depth adjustment rod and 60 bracket with 62 base - Stopwatch (accurate to at least 0.1 seconds) - Deionized water (equilibrated at 23°C ± 1°C)
[0161] Sample preparation: For the burst test, pouch samples are equilibrated at 23°C ± 1°C and 50% ± 2% relative humidity for at least 24 hours prior to testing. The rupture test is also carried out under these conditions of temperature and relative humidity.
[0162] Equipment Setup: As shown in Figures 8-10, a 2000 mL glass beaker 50 is filled with 1600 ± 5 mL of deionized water and placed on top of a magnetic stir plate 52. A magnetic stir bar 54 is placed at the bottom of beaker 50. The stirring speed is adjusted so that a smooth vortex develops in the center of beaker 50 with the bottom of the vortex at the 1200 mL mark.
[0163] A test cycle may be required to ensure that the depth adjustment rod is configured correctly for the particular pouch being tested. A bag 64 is secured by its edge in the clasp of a binder clip, which is suspended from an alligator clip 56 with one of its two wire handles. The alligator clip 56 is welded to the end of a depth adjustment rod 58. The depth adjustment rod 58 is configured so that when the binder clip is lowered into the water, the entire bag 64 is completely immersed in water in the center of the beaker 50, the top of the bag 64 is at the bottom of the vortex, and the bottom of the bag 64 is not in direct contact with the stirring bar 54. Due to the different dimensions of the different pouch samples, the depth adjustment rod 58 may need to be adjusted for each type of pouch sample.
[0164] Test protocol: The bag 64, which is indirectly attached to the depth adjustment rod 58, is dropped into the water in one motion and the timer is started immediately. Bag 64 is carefully monitored visually. Breaking time is defined as the time when the pouch initially separates, releasing its contents, such as powders, into the water, which means the pouch breaks.
[0165] Three replicates of each sample are measured and average break times are reported to +/- 0.1 seconds.
[0166] Dissolution test method
[0167] Device and materials: For the dissolution test, the same apparatus configuration (Figures 8-10) as used in the break test method is used except that a 35 mm slide frame and holder are used. -35mm slide to hold part of perforated film wall material in alligator clip 56 instead of alligator clip 56 simply holding a pouch. - 2000 mL glass beaker 50 (approximately 7.5 inches (19.05 cm) high by 5.5 inches (13.97 cm) -Plate for Magnetic Stirrer 52 (Labline, Melrose Park, IL, Model No. 1250 or equivalent) - Magnetic Stir Bar 54 (2 inches (5.08 cm) long by 3/8 inch (0.9525 cm) diameter, Teflon coated) - Thermometer (1 to 100°C +/- 1°C) - Clamp for 1.25 inch (3.175 cm) paper binding - Alligator Clip (about one inch (2.54cm) long) 56 -58 depth adjustment rod and 60 bracket with 62 base - Stopwatch (accurate to at least 0.1 seconds) - Deionized water (equilibrated at 23°C ± 1°C) -Cutting die -- stainless steel cutting die sized 3.8cm x 3.2cm - 35mm Polaroid Slide Frame (marketed by Polaroid Corporation or equivalent) 35mm Slide Frame Holder (or equivalent)
[0168] Sample preparation Equilibrate perforated film wall material samples in a constant temperature and humidity environment of 23°C ± 1°C and 50% ± 2% relative humidity for at least 24 hours prior to testing. The dissolution test is also carried out under these temperature and relative humidity conditions. Measure the basis weight of sample materials using the basis weight method defined here. Cut three dissolution test specimens from a sample of perforated film wall material to be tested using a cutting die (3.8 cm x 3.2 cm), so that it fits within the frame of 35mm slide which has an open area dimension of 24 x 36mm. Block each sample in an independent 35 mm slide frame.
[0169] Equipment Setup: As shown in Figures 8-10, a 2000 mL glass beaker 50 is filled with 1600 ± 5 mL of deionized water and placed on top of a magnetic stir plate 52. A magnetic stir bar 54 is placed at the bottom of beaker 50. The stirring speed is adjusted so that a smooth vortex develops in the center of beaker 50 with the bottom of the vortex at the 1200 mL mark.
[0170] A test cycle may be required to ensure the depth adjustment rod is set correctly. Fix the 35 mm slide frame in the alligator clip 56 of the 35 mm slide frame so that the long end of the slide frame is parallel to the surface of the water. Alligator clip 56 should be positioned in the middle of the long end of the slide frame. The alligator clip 56 is welded to the end of a depth adjustment rod 58. The depth adjustment rod 58 is configured so that when the binder clip is lowered into the water, the sample of entire apertured film wall material is completely submerged in water in the center of beaker 50, that the top of the apertured film wall material sample is at the bottom of the vortex, and that the bottom of the slide frame/ slide frame holder is not in direct contact with the stirring bar 54. The depth adjustment rod 58 and the alligator clip 56 must be adjusted so that the position of the material sample surface perforated film wall is perpendicular to the flow of water.
[0171] In one motion, drop the attached slide and clamp into the water and start the timer. The apertured film wall material sample is deposited such that the apertured film wall material sample is centered in the beaker. When all of the visible apertured film wall material sample is released from the slide frame, lift the slide out of the water while continuing to monitor the solution for fragments of apertured film wall material sample not dissolved. Dissolution occurs when all sample fragments of perforated film wall material are no longer visible. Record this as dissolving time.
[0172] Three replicates of each perforated film wall material sample are run and average dissolution times are shown at +/- 0.1 seconds. The average dissolution time is in units of seconds.
[0173] Average dissolution times are normalized to basis weight by dividing each by the basis weight of perforated film wall material sample as determined by the basis weight method defined herein. Mean dissolution times normalized to basis weight are in units of seconds/(g/m ² ) of sample (s/(g/m ² )).
[0174] Tensile test method
[0175] Device and materials: -Multipurpose knife or utility knife -Scissors - 1 inch (2.54 cm) precision punch (Model No. JDC25 manufactured by Thwing-Albert Instrument Company, 14 W Collings Ave, West Berlin, NJ 08091) or equivalent
[0176] Sample preparation: Using a utility knife, a corner of the bag is cut along its edge. After the majority of the contents of the pouch are emptied, using a pair of scissors, a sample of film wall material is cut along the edge of the pouch. The film wall material is then gently cleaned by scrubbing to remove any residue. Any damage to the film wall material, such as stretching, scratching, pinching, puncturing, is avoided during the sample preparation step. If the film wall material is damaged (i.e. torn, stretched, cut, punctured, etc.) as a result of separation of the wall material from the pouch, the sample is discarded and another undamaged sample is prepared.
[0177] The tensile property of the film wall material can depend on the direction of applied strain relative to its manufacturing orientation, i.e. machine direction (MD) and cross direction (CD). If the machine direction and the cross direction are not apparent, the longer axial direction parallel to an edge of the bag is taken as the machine direction and the orthogonal direction is taken as the cross direction. Or if the emptied bag is practically square, again, an axial direction parallel to an edge of the bag is taken as the machine direction and the orthogonal direction is taken as the cross direction.
[0178] The pouch wall samples are cut to a dimension of 25.4 mm (1 inch) by 12.7 mm (0.5 inch) using a precision punch. Samples are equilibrated at 23 ± 1°C and 50% ± 2% relative humidity for at least 24 hours prior to testing. Tensile testing is performed in accordance with ASTM D882-02 at 23°C ± 1°C and 50% ± 2% relative humidity, along with the exceptions and/or conditions listed below.
[0179] Test protocol: Because of the size of a typical pouch, the initial reference length is chosen to be 6.35 mm (0.25 inch) and a reference width is 25.4 mm (1 inch). Tensile strength and elongation at break are measured using a constant speed elongation tensile tester with a computer interface, such as an Instron Model 5569 Tensile Tester (manufactured by Instron Corporation, 825 University Ave, Norwood, MA 02062) equipped with Bluehill® material testing software version 2.18. The test speed is set at 500 mm/minute. Both the upper movable and lower stationary pneumatic grips are fitted with smooth stainless steel faced jaws, 25.4 mm high and wider than the width of the test specimen. Air pressure of approximately 0.41 MPa (60 psi) is supplied to the jaws. A suitable load cell is chosen such that the calculated tensile strength is accurate to within +/- 0.01 kN/m. Tensile strength is defined as maximum peak force (kN) divided by sample width (m) and reported in kN/m to +/- 0.01 kN/m. Elongation at break is defined as the elongation at which the force has dropped to 10% of its maximum divided by the original gauge length multiplied by 100 and given as a % at +/- 0.1%. Three replicates of each sample were tested in the machine direction and the cross direction.
[0180] Calculations: Geometric Mean Tensile Strength = Square Root of [Machine Direction Tensile Strength (kN/m) x Cross Direction Tensile Strength (kN/m)] Geometric mean elongation at break = Square root of [Machine direction elongation at break (%) x Cross machine direction elongation at break (%)]
[0181] Shaking test method
[0182] Device and materials: -850 micrometer sieve (8 inches (20.32 cm) diameter) - Solid tray (8 inches (20.32 cm) in diameter) that fits under the screen -Lab-Line Orbit Environ Shaker Model No. 3528 (manufactured by Lab-Line Instrument Inc., Melrose Park, IL 60160) or equivalent - Scale (accurate to 0.0001 grams)
[0183] Sample preparation: Pouch samples are equilibrated at 23°C ± 1°C and 50% ± 2% relative humidity for at least 24 hours prior to testing. The shaking test is carried out under the same conditions of temperature and relative humidity.
[0184] Test protocol: Before carrying out the shaking test, the mass of the sachet is measured at +/- 0.1 mg. The bag sample is placed in the center of the sieve, which rests on the full pan. Both the sieve and the tray are placed on the shaker plate. The shaking speed is set at 150-170 rpm for 10 minutes. The mass of the sachet is measured again after the shake test at +/- 0.1 mg. Three replicates of each sample are tested. The percentage weight loss is calculated based on the mass of the sachet before and after shaking and is indicated at +/- 0.1%.
[0185] Thickness test method
[0186] The thickness of a perforated film wall material is measured by cutting 5 samples of fibrous wall material such that each cut sample is one size larger than the loading surface of a Tester's load foot VIR Model II thickness electronics available from Thwing-Albert Instrument Company, Philadelphia, PA. Typically, the loading surface of the load leg has a circular area of approximately 3.14 in ² (20.26 cm ² ). The sample is confined between a flat horizontal surface and the loading surface of the load foot. The loading surface of the loading foot applies a confining pressure to the sample of 1.52 kPa (15.5 g/cm ² ). The thickness of each sample is the resulting gap between the flat surface and the loading surface of the load foot. The thickness is calculated as the average thickness of the five samples. The result is indicated in millimeters (mm).
[0187] The dimensions and values described herein should not be understood to be strictly limited to the exact numerical values quoted. Instead, unless otherwise specified, each such dimension means both the quoted value and the functionally equivalent range surrounding that value. For example, a dimension described as "40 mm" means "approximately 40 mm".
[0188] Citation of any document is not an admission that it is prior art to any invention described or claimed herein or that alone, or in any combination with any any other reference(s) it teaches, suggests or describes any such invention. Further, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in another document, the meaning or definition ascribed to that term in this document shall prevail.
[0189] While particular embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various other variations and modifications may be made without departing from the spirit and scope of the invention. It is intended, therefore, to cover in the appended claims all such variations and modifications which fall within the scope of the present invention.
[0190] The invention is also based on the following embodiments.
[0191] 1. Pouch characterized by comprising a perforated film wall material which defines an internal volume of the pouch.
[0192] 2. Sachet according to embodiment 1, characterized in that the sachet breaks as measured according to the rupture test method, preferably characterized in that the sachet has an average rupture time of less than 240 seconds as measured according to the rupture test method.
[0193] 3. Bag according to any one of the preceding embodiments, characterized in that the perforated film wall material comprises a hydroxyl polymer, preferably characterized in that the hydroxyl polymer is chosen from the group consisting of: pullulan, hydroxypropylmethyl -cellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, sodium alginate, xanthan gum, tragacanth gum, guar gum, acacia gum, gum arabic, polyacrylic acid, dextrin, pectin, chitin, collagen, gelatin, zein, gluten, soy protein, casein, polyvinyl alcohol, starch, starch derivatives, hemicellulose, hemicellulose derivatives, proteins, chitosan, chitosan derivatives, polyethylene glycol, tetramethylene ether glycol, hydroxymethylcellulose, and mixtures thereof.
[0194] 4. Sachet according to any one of the preceding embodiments, characterized in that the sachet further comprises an active agent within the internal volume of the sachet, preferably characterized in that the active agent is chosen from the group consisting of in: surfactants, bleaching agents, enzymes, suds suppressors, suds boosters, fabric softening agents, denture cleaning agents, hair cleaning agents, hair care agents, personal care agents, tints, effervescent agents, and mixtures thereof, preferably characterized in that the active agent is in the form of a powder.
[0195] 5. Bag according to embodiment 4, characterized in that the bag has a % weight loss of less than 10% as measured according to the shake test method, preferably characterized in that the bag has a % of less than 5% weight loss as measured by shake test method.
[0196] 6. Sachet according to embodiment 4 or 5, characterized in that the sachet releases one or more of the active agents when the sachet is exposed to the conditions of intended use.
[0197] 7. Sachet according to any one of the preceding embodiments, characterized in that the sachet has a water content ranging from 0% to 20% as measured according to the water content test method.
[0198] 8. Bag according to any of the preceding embodiments, characterized in that the bag further comprises a separate inner bag present in the internal volume, preferably characterized in that the inner bag comprises a film wall material which defines a second internal volume, more preferably characterized in that the film wall material of the inner pouch comprises a perforated film wall material and/or an unperforated film wall material, most preferably characterized in that the second internal volume includes an active agent.
[0199] 9. Bag according to embodiment 8, characterized in that the inner bag has a rupture time equal to or greater than the rupture time of the sachet as measured according to the rupture time test method.
[0200] 10. Bag according to any one of the preceding embodiments, characterized in that the perforated film wall material has a geometric mean tensile strength greater than 0.1 kN/m as measured according to the test method of traction.
[0201] 11. Bag according to any one of the preceding embodiments, characterized in that the perforated film wall material has a geometric mean elongation at break of less than 1000% as measured according to the tensile test method.
[0202] 12. A bag according to any of the preceding embodiments, characterized in that the perforated film wall material comprises a regular pattern of perforations.
[0203] 13. A bag according to any of the preceding embodiments, characterized in that the perforated film wall material comprises a non-repeating pattern of perforations.
[0204] 14. Bag according to any one of the preceding embodiments, characterized in that the perforated film wall material comprises perforations of different sizes.
[0205] 15. Bag according to any one of the preceding embodiments, characterized in that the perforated film wall material comprises perforations of different shapes.

权利要求:
Claims (21)
[0001]
A pouch characterized by comprising a perforated water-soluble film wall material that defines an internal volume of the pouch, the perforated water-soluble film wall material comprising one or more film wall material active agents present in the wall material in perforated water-soluble film and further comprising a plurality of holes, and characterized in that the sachet further comprises one or more sachet active agents within the internal volume of the sachet, at least one of the sachet active agents being in the form of a powder and/or a particulate matter.
[0002]
Sachet according to Claim 1, characterized in that the sachet breaks as measured according to the rupture test method, the sachet preferably exhibiting an average rupture time of less than 240 seconds as measured according to the rupture test method.
[0003]
Sachet according to any one of the preceding claims, characterized in that the perforated water-soluble film wall material comprises a hydroxyl polymer, preferably characterized in that the hydroxyl polymer is chosen from the group consisting of: pullulan, hydroxypropylmethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, sodium alginate, xanthan gum, tragacanth gum, guar gum, acacia gum, gum arabic, polyacrylic acid, dextrin, pectin, chitin, collagen, gelatin, zein, gluten, soy protein, casein , polyvinyl alcohol, starch, starch derivatives, hemicellulose, hemicellulose derivatives, proteins, chitosan, chitosan derivatives, polyethylene glycol, tetramethylene ether glycol, hydroxymethylcellulose, and mixtures thereof.
[0004]
Sachet according to any one of the preceding claims, characterized in that at least one of the film wall material active agents is selected from the group consisting of: surfactants, bleaching agents, enzymes, suds suppressors, boosters foaming agents, fabric softening agents, denture cleaning agents, hair cleaning agents, hair care agents, personal care agents, tinting agents, effervescent agents, tooth whitening agents, tooth care agents teeth, mouthwash agents, periodontal gum care agents, and mixtures thereof.
[0005]
Sachet according to any one of the preceding claims, characterized in that at least one of the sachet active agents is chosen from the group consisting of: surfactants, bleaching agents, enzymes, suds suppressors, suds boosters, fabric softening agents, denture cleaning agents, hair cleaning agents, hair care agents, personal care agents, tinting agents, effervescent agents, tooth whitening agents, tooth care agents, mouthwash, periodontal gum care agents, and mixtures thereof.
[0006]
Sachet according to any one of the preceding claims, characterized in that the sachet has a % weight loss of less than 10% as measured according to the shake test method, preferably characterized in that the sachet has a % of less than 5% weight loss as measured by shake test method.
[0007]
A sachet according to any preceding claim, characterized in that the perforated water-soluble film wall material releases at least one of the active agents of the perforated water-soluble film wall material when the perforated water-soluble film wall material is exposed to the conditions of intended use.
[0008]
A sachet according to any preceding claim, characterized in that the sachet releases at least one of the sachet active agents when the sachet is exposed to the conditions of intended use.
[0009]
Sachet according to any one of the preceding claims, characterized in that the sachet has a water content ranging from 0% to 20% as measured according to the water content test method.
[0010]
Sachet according to any of the preceding claims, characterized in that the perforated water-soluble film wall material exhibits a geometric mean tensile strength greater than 0.1 kN/m as measured by the tensile test method.
[0011]
Sachet according to any one of the preceding claims, characterized in that the perforated water-soluble film wall material exhibits a geometric mean elongation at break of less than 1000% as measured according to the tensile test method.
[0012]
Sachet according to any of the preceding claims, characterized in that the perforated film wall material comprises a regular pattern of the plurality of holes.
[0013]
Sachet according to any of the preceding claims, characterized in that the perforated film wall material comprises a non-repeating pattern of the plurality of holes.
[0014]
Bag according to any one of the preceding claims, characterized in that the plurality of holes have different sizes.
[0015]
Bag according to any one of the preceding claims, characterized in that the plurality of holes have different shapes.
[0016]
Bag according to any one of the preceding claims, characterized in that at least one of the plurality of holes has a diameter ranging from at least 0.1 mm to approximately 2 mm.
[0017]
A pouch according to any preceding claim, characterized in that the plurality of holes in the perforated water-soluble film wall material form an open area ranging from about 0.5% to about 25%.
[0018]
Bag according to any one of the preceding claims, characterized in that the bag also comprises a seal.
[0019]
Sachet according to any of the preceding claims, characterized in that the perforated water-soluble film wall material has a thickness greater than 0.01 mm as measured by the thickness test method.
[0020]
Sachet according to any one of the preceding claims, characterized in that the perforated water-soluble film wall material exhibits an average dissolution time of less than 24 hours as measured according to the dissolution test method.
[0021]
Sachet according to any one of the preceding claims, characterized in that the perforated water-soluble film wall material exhibits an average dissolution time per g/m2 of sample of about 10 seconds/(g/m2) or less such that measured according to the dissolution test method.

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引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

US2748863A|1953-03-02|1956-06-05|Harold Z Benton|Perforating machine for thermoplastic films|

---

US3066347A|1961-05-02|1962-12-04|Peter S Vosbikian|Cleaning devices|

---

US3097787A|1961-09-15|1963-07-16|Olin Mathieson|Packaging film|

---

BE794951A|1972-02-03|1973-05-29|Parke Davis & Co|WATER SOLUBLE PACKAGING|

---

US3929135A|1974-12-20|1975-12-30|Procter & Gamble|Absorptive structure having tapered capillaries|

---

US4155971A|1976-08-18|1979-05-22|E. I. Du Pont De Nemours And Company|Method of making water-soluble films from polyvinyl alcohol compositions|

---

US4342314A|1979-03-05|1982-08-03|The Procter & Gamble Company|Resilient plastic web exhibiting fiber-like properties|

---

US4324246A|1980-05-12|1982-04-13|The Procter & Gamble Company|Disposable absorbent article having a stain resistant topsheet|

---

US4463045A|1981-03-02|1984-07-31|The Procter & Gamble Company|Macroscopically expanded three-dimensional plastic web exhibiting non-glossy visible surface and cloth-like tactile impression|

---

GB8605734D0|1986-03-07|1986-04-16|Unilever Plc|Dispensing treatment agents|

---

US4839076A|1988-04-07|1989-06-13|The Procter & Gamble Company|Pouched through the washer and dryer laundry additive product having at least one wall comprised of finely apertured polymeric film|

---

US4820435A|1988-05-02|1989-04-11|E. I. Du Pont De Nemours And Company|Liquid-dispensing pouch|

---

US5006394A|1988-06-23|1991-04-09|The Procter & Gamble Company|Multilayer polymeric film|

---

TR24867A|1989-08-23|1992-07-01|Unilever Nv|CAMASIR TREATMENT PRODUCT|

---

US5053270A|1990-05-18|1991-10-01|Colgate-Palmolive Co.|Non-woven fabric construction for detergent pouch|

---

GB9103743D0|1991-02-22|1991-04-10|Unilever Plc|Laundry treatment product|

---

US5534178A|1994-12-12|1996-07-09|Ecolab Inc.|Perforated, stable, water soluble film container for detersive compositions|

---

US6783294B2|2000-02-14|2004-08-31|Johnson & Johnson Consumer Companies, Inc.|Solid cleanser holder|

---

JP2001302405A|2000-04-27|2001-10-31|Kumiai Chem Ind Co Ltd|Agrochemical preparation for paddy field and method for scattering the same|

---

GB2365018A|2000-07-24|2002-02-13|Procter & Gamble|Water soluble pouches|

---

GB2369083A|2000-11-17|2002-05-22|Procter & Gamble|Process for preparing pouches|

---

CA2592729C|2000-11-27|2011-02-22|The Procter & Gamble Company|Detergent pouch comprising superposed or superposable compartments|

---

US7125828B2|2000-11-27|2006-10-24|The Procter & Gamble Company|Detergent products, methods and manufacture|

---

GB2375515B|2001-05-17|2003-11-19|Reckitt Benckiser|Water-soluble containers|

---

US7977532B2|2002-09-05|2011-07-12|The Procter & Gamble Company|Tampon with clean appearance post use|

---

US8241543B2|2003-08-07|2012-08-14|The Procter & Gamble Company|Method and apparatus for making an apertured web|

---

WO2005035382A1|2003-10-07|2005-04-21|Henkel Kommanditgesellschaft Auf Aktien|Film packed agent portion and method for producing|

---

PL1543763T3|2003-12-16|2012-08-31|Unilever Nv|Ingredient dispenser for automatic dishwashers|

---

IL171091A|2005-09-26|2011-01-31|Samuel Icht|Water-soluble detergent film with a print and method of production|

---

ITBO20060081A1|2006-02-10|2007-08-11|Luca Scoppa|PACKAGE FOR WASHING FABRICS, IN PARTICULAR COLORED FABRICS.|

---

US20100018641A1|2007-06-08|2010-01-28|Kimberly-Clark Worldwide, Inc.|Methods of Applying Skin Wellness Agents to a Nonwoven Web Through Electrospinning Nanofibers|

---

DE102007042450B4|2007-09-06|2009-12-31|Andreas Siggelkow|Water-soluble packaging with functional depot and method for its production and use of the packaging|

---

DE202008007644U1|2008-05-23|2008-10-09|Siggelkow, Andreas|Water-soluble packaging with functional depot|

---

EP2380966B2|2008-02-08|2021-11-10|The Procter & Gamble Company|Process for making a water-soluble pouch|

---

HUE048039T2|2009-06-02|2020-05-28|Procter & Gamble|Water-soluble pouch|

---

EP2302026A1|2009-09-15|2011-03-30|The Procter & Gamble Company|Detergent composition comprising surfactant boosting polymers|

---

US20130053293A1|2009-12-30|2013-02-28|John Dituro|Biodegradable package for detergent|

---

EP2361964B1|2010-02-25|2012-12-12|The Procter & Gamble Company|Detergent composition|

---

PL2588288T3|2010-07-02|2016-04-29|Procter & Gamble|Process for making films from nonwoven webs|

---

US9242774B2|2010-08-12|2016-01-26|Church & Dwight Co., Inc.|Detergent pouch with improved properties|

---

US8551929B2|2010-08-23|2013-10-08|The Sun Products Corporation|Unit dose detergent compositions and methods of production and use thereof|

---

US8629093B2|2010-09-01|2014-01-14|The Procter & Gamble Company|Detergent composition comprising mixture of chelants|

---

US9044353B2|2011-04-26|2015-06-02|The Procter & Gamble Company|Process for making a micro-textured web|

---

EP2800831B1|2012-01-04|2020-12-16|The Procter and Gamble Company|Fibrous structures comprising particles and methods for making same|

---

US20140228194A1|2013-02-13|2014-08-14|Multi-Pack Solutions|Systems and methods for forming openings in water soluble packets|

---

US20140336029A1|2013-05-07|2014-11-13|The Procter & Gamble Company|Process for laser puncturing holes into water-soluble films|US20160145547A1|2014-11-25|2016-05-26|Milliken & Company|Film-Encased Cleaning Composition|

---

US10927331B2|2017-02-14|2021-02-23|Sutherland Products, Inc.|Dissolvable detergent pouch and method|

---

CN107474982B|2017-08-08|2019-04-30|诺维信公司|Synergy capsule|

---

AU2019270966B2|2018-05-14|2021-11-11|The Procter & Gamble Company|Unit-dose oral care compositions|

---

CA3146832A1|2019-07-11|2021-01-14|Griffin Bros., Inc.|Tire enhancement product, package, and method|

法律状态:
2020-02-18| PLFP| Fee payment|Year of fee payment: 6 |

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2020-08-12| PLFP| Fee payment|Year of fee payment: 7 |

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2021-08-12| PLFP| Fee payment|Year of fee payment: 8 |

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2021-10-08| PLSC| Publication of the preliminary search report|Effective date: 20211008 |

优先权:

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申请号 | 申请日 | 专利标题

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US201361874546P| true| 2013-09-06|2013-09-06|

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US61/874,546|2013-09-06|

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