Absorbent article with barrier leg cuffs having inner cuffs folded back
By adopting a barrier leg cuff with a folded-back inner cuff design in an absorbent product, the problems of leakage and limited void volume in the existing design are solved, and better leakage prevention and containment capacity are achieved.
Patent Information
- Application Number
- CN202480011445.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-02-10
- Filing Date
- 2024-02-09
- Publication Date
- 2025-09-05
AI Technical Summary
Existing barrier leg cuff designs of absorbent articles cannot fully form an effective gasket around the wearer's legs, resulting in limited leakage and void volume, and cannot effectively contain large volumes of body exudates.
A pair of barrier leg cuffs is used, each barrier leg cuff includes a folded inner cuff to form a double seal, increase the anti-leakage effect, and increase the void volume through the design of the folded inner cuff.
More effective leakage reduction and greater void volume containment are achieved, thereby improving the anti-leakage performance and usage time of the absorbent product.
Smart Images

Figure CN120603561A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure generally relates to absorbent articles (eg, diapers, adult incontinence products, feminine hygiene pads, disposable absorbent inserts, etc.) having barrier leg cuffs with folded-back inner cuffs. Background Art
[0002] Absorbent articles such as diapers, adult incontinence products, feminine hygiene pads, disposable absorbent inserts, etc. are generally used to contain urine and / or other body exudates. In order to effectively contain body exudates, the article should provide a close fit around the waist and legs of the wearer.
[0003] Current absorbent article designs often include barrier leg cuffs to help reduce the leakage of body exudates. Barrier leg cuffs typically include an inner cuff positioned inside the absorbent article's absorbent member and designed to contain body exudates within the absorbent article and adjacent to the absorbent member so they can be absorbed. The inner cuff may have elastic strands positioned therein so that the inner cuff forms a gasket along the wearer's leg to help inhibit leakage of body exudates from the absorbent article. However, these current designs may not completely gasket the wearer's leg, especially when the wearer is moving around. This is because the inner cuff forms a gasket through a single point of contact with the wearer's leg (typically at the terminal end of the inner cuff). As the wearer changes position or moves their leg, a portion of the inner cuff may lose contact with the wearer's leg, thereby allowing body exudates to leak.
[0004] Furthermore, the inner cuff is typically designed so that the elastics are located only at the terminal ends of the inner cuff, where the cuff contacts the leg. Consequently, placing the elastics only at the terminal ends of the inner cuff limits the height of the cuff and, therefore, the void volume available to contain body exudates—the volume available when the absorbent article is placed on the wearer. This configuration can limit the void volume because the height of the inner cuffs can be limited to ensure that they form an adequate gasket with the wearer's leg. A larger void volume may be desirable to handle larger volumes of body exudates and / or to allow the wearer to use a single absorbent article for an extended period of time, such as overnight.
[0005] In light of the problems with current barrier leg cuff design and functionality, absorbent articles having barrier leg cuffs should be improved. Summary of the Invention
[0006] Aspects of the present disclosure address one or more of the problems discussed above by providing an absorbent article that includes a pair of barrier leg cuffs, each barrier leg cuff including a reversed inner cuff. The barrier leg cuffs including the reversed inner cuffs form a double seal around the wearer's legs, resulting in reduced gaps and reduced leakage. The barrier leg cuffs including the reversed inner cuffs can also position the wide portion of the reversed inner cuff against the wearer's legs, thereby creating a wider anti-leakage barrier. Furthermore, the barrier leg cuffs including the reversed inner cuffs can allow absorbent articles to have a larger void volume than currently available.
[0007] The present disclosure provides, in part, an absorbent article comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, an absorbent core at least partially disposed between the topsheet and the backsheet, and a pair of barrier leg cuffs. Each barrier leg cuff is formed from a single web of material and includes a reversed inner cuff comprising an inner folded edge, a reversed folded edge, an inner elastic element, and a reversed elastic element. The inner elastic element may be disposed adjacent to the inner folded edge, and the reversed elastic element may be disposed adjacent to the reversed folded edge. At least a portion of the reversed inner cuff may be configured to overlap the topsheet when the absorbent article is in a flat, uncontracted configuration.
[0008] The present disclosure provides, in part, an absorbent article comprising a chassis including a liquid-permeable topsheet, a liquid-impermeable backsheet, and an absorbent core at least partially disposed between the topsheet and the backsheet. The absorbent article further comprises a pair of barrier leg cuffs, each barrier leg cuff formed from a single web material and including a proximal portion joined to the chassis and an inner distal portion. The web material is folded laterally outward to form a folded portion between the proximal portion and the inner distal portion, thereby forming a folded inner cuff. The folded inner cuff includes an inner folded edge, a folded folded edge, an inner elastic element, and a folded elastic element. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The above and other features and advantages of the present disclosure and the manner in which they are obtained will become more apparent, and the present disclosure itself will be better understood, by reference to the following description of example forms of the present disclosure taken in conjunction with the accompanying drawings, in which:
[0010] Figure 1 is a plan view of an exemplary absorbent article in the form of a taped diaper, with the garment-facing surface facing the viewer, in a flat, unfolded condition;
[0011] Figure 2 for Figure 1 a plan view of an example absorbent article with the wearer-facing surface facing the viewer in a flat, unfolded state;
[0012] Figure 3 In the fastened position Figure 1 and Figure 2 a front perspective view of an absorbent article;
[0013] Figure 4 is a front perspective view of an absorbent article in the form of a pant;
[0014] Figure 5 for Figure 4 a back perspective view of an absorbent article;
[0015] Figure 6 for Figure 4 a plan view of an absorbent article positioned flat with the garment-facing surface facing the viewer;
[0016] Figure 7 for Figure 6 A cross-sectional view of the absorbent article taken along line 7-7;
[0017] Figure 8 for Figure 6 A cross-sectional view of the absorbent article taken along line 8-8;
[0018] Figure 9 is a plan view of an exemplary absorbent core or absorbent article;
[0019] Figure 10 for Figure 9 A cross-sectional view of the absorbent core taken along line 10-10;
[0020] Figure 11 for Figure 10 A cross-sectional view of the absorbent core taken along line 11-11;
[0021] Figure 12 is a plan view of an exemplary absorbent article of the present disclosure that is a sanitary napkin;
[0022] Figure 13 is a schematic cross-sectional view of a barrier leg cuff having a folded-back inner cuff;
[0023] Figure 14 is a schematic cross-sectional view of a barrier leg cuff having a reversed inner cuff including a plurality of inner elastic members and a reversed elastic member;
[0024] Figure 15 is a plan view of an exemplary absorbent article in the form of a taped diaper having barrier leg cuffs with inner and outer cuffs having folded-back portions, with the wearer-facing surface facing the viewer in a flat, unfolded condition;
[0025] Figure 16 is a schematic cross-sectional view of a barrier leg cuff having a reversed inner cuff with a single inner elastic member and a single reversed elastic member;
[0026] Figure 17is a schematic cross-sectional view of a barrier leg cuff having a reversed inner cuff with a plurality of inner elastic members and a single reversed elastic member;
[0027] Figure 18 is a schematic cross-sectional view of a barrier leg cuff having a reversed inner cuff with a single inner elastic member and a plurality of reversed elastic members;
[0028] Figure 19 for Figure 15 Schematic cross-sectional view of a barrier leg cuff with a folded-back inner cuff taken along line 19-19;
[0029] Figure 20 for Figure 15 A schematic cross-sectional view of a barrier leg cuff having a folded-back inner cuff taken along line 20-20;
[0030] Figure 21 is a schematic cross-sectional view of a barrier leg cuff having an inner cuff and an outer cuff that are folded back;
[0031] Figure 22 is a schematic cross-sectional view of a barrier leg cuff having a reversed inner cuff and an outer cuff, wherein the outer cuff elastic element is disposed between the web material forming the barrier leg cuff and the backsheet and / or outer cover;
[0032] Figures 23A to 23F are schematic cross-sectional views of various stretch laminates;
[0033] Figure 24 is an exploded perspective view of an exemplary ear including a stretch laminate and illustrating an exemplary surface modification;
[0034] Figure 25 is a schematic perspective view of an absorbent article in the form of an insert and a reusable outer cover;
[0035] Figure 26 is an exemplary cross-sectional view of a nonwoven material forming a barrier leg cuff; and
[0036] Figure 27 FIG. 2 is another example cross-sectional view of a nonwoven material forming a barrier leg cuff. DETAILED DESCRIPTION
[0037] Various non-limiting forms of the present disclosure will now be described to provide a general understanding of the structural principles, function, manufacture, and use of the absorbent article with barrier leg cuffs having inner cuffs with foldbacks disclosed herein. One or more examples of these non-limiting forms are illustrated in the accompanying drawings. One or more persons skilled in the art will understand that the absorbent article with barrier leg cuffs having inner cuffs with foldbacks described herein and illustrated in the accompanying drawings are non-limiting example forms. Features shown or described in connection with one non-limiting form may be combined with features of other non-limiting forms. Such modifications and variations are intended to be included within the scope of the present disclosure.
[0038] General description of absorbent articles
[0039] An exemplary absorbent article 10 according to the present disclosure is shown in the form of a diaper. Figures 1 to 3 Shown in. Figure 1 To illustrate a plan view of the absorbent article 10, the garment-facing surface 2 faces the viewer in a flat, flat position (ie, without elastic contraction). Figure 2 for Figure 1 1 is a plan view of an example absorbent article 10 with the wearer-facing surface 4 facing the viewer in a flat, unfolded state. Figure 3 In the fastened configuration Figure 1 and Figure 2 Front perspective view of the absorbent article 10. Figures 1 to 3 The absorbent article 10 is shown for illustrative purposes only, as the present disclosure can be used to make a wide variety of absorbent articles including, for example, diapers, adult incontinence products, pant-type articles, sanitary napkins, and absorbent inserts.
[0040] The absorbent article 10 may include a front waist region 12, a crotch region 14, and a back waist region 16. The crotch region 14 may extend intermediate the front waist region 12 and the back waist region 16. The front waist region 12, the crotch region 14, and the back waist region 16 may each be approximately 1 / 3 of the length of the absorbent article 10. The absorbent article 10 may include a front end edge 18, a back end edge 20 opposite the front end edge 18, and longitudinally extending, laterally opposing side edges 22 and 24 defined by the chassis 52.
[0041] The absorbent article 10 may include a liquid-permeable topsheet 26, a liquid-impermeable backsheet 28, and an absorbent core 30 positioned at least partially intermediate the topsheet 26 and the backsheet 28. The absorbent article 10 may also include one or more pairs of barrier leg cuffs 32, one or more elastic waistbands 36, and / or one or more acquisition materials 38, as further described herein. The one or more acquisition materials 38 may be positioned intermediate the topsheet 26 and the absorbent core 30. An outer cover material 40, such as a nonwoven material, may cover the garment-facing side of the backsheet 28. The absorbent article 10 may include back ears 42 located in the rear waist region 16. The back ears 42 may include fasteners 46 and may extend from the rear waist region 16 of the absorbent article 10 and be attached (using the fasteners 46) to a landing zone area or landing zone material 44 on the garment-facing portion of the front waist region 12 of the absorbent article 10. The absorbent article 10 may also have front ears 47 in the front waist region 12. The absorbent article 10 can have a central lateral (or transverse) axis 48 and a central longitudinal axis 50. The central lateral axis 48 extends perpendicular to the central longitudinal axis 50.
[0042] An absorbent article may include a secondary fastening system comprising a secondary fastening component 210 and a secondary receiving component 212, which are operably engaged to further secure the article about the wearer. The secondary fastening component 210 may be positioned in the front waist region 12, and the secondary fastening receiving component 212 may be positioned in the rear waist region 16. The addition of the secondary fastening system provides a larger surface area for fastening when the diaper is worn, thereby distributing lateral tension forces transmitted through the fastening locations when the rear waist region is pulled toward the front waist region, and vice versa. Furthermore, having two distinct fastening locations reduces the tendency of the front portion of the article to pivot (i.e., pivot about a single fastening location of the primary fastening system). Furthermore, the secondary system helps create a tension line closer to the front waist edge, which can reduce the likelihood of the front waist edge folding or flipping during wear. Furthermore, the secondary system can create an anchoring geodesic to direct forces from the crotch region to the hips to prevent sagging during wear. The secondary system can also help secure the front ears or combined belt structure in place during wear. Each of the above can be used to provide more effective and durable fastening during wear and less longitudinal and / or lateral deflection, sagging and / or wrinkling of the diaper material around the fastening area.
[0043] In other cases, the absorbent article may be in the form of a pant (pants-type) having permanent or refastenable side seams. Suitable refastenable seams are disclosed in U.S. Patent Application Publication No. 2014 / 0005020 and U.S. Patent No. 9,421,137. See Figures 4 to 8 , an example absorbent article 10 is shown in the form of a pant. Figure 4 It is a front perspective view of the absorbent article 10. Figure 5This is a back perspective view of the absorbent article 10. Figure 6 is a plan view of the absorbent article 10 lying flat with the garment-facing surface facing the viewer. Figures 4 to 8 The same as above Figure 1-Figure 3 The like reference numbered elements may be like elements (eg, absorbent core 30). Figure 7 for Figure 6 An example cross-sectional view of an absorbent article taken along line 7-7. Figure 8 for Figure 6 An example cross-sectional view of an absorbent article taken along line 8-8. Figure 7 and Figure 8 Example forms of the front belt 54 and the back belt 56 are shown. The absorbent article 10 can have a front waist region 12, a crotch region 14, and a back waist region 16. Each of the regions 12, 14, and 16 can be 1 / 3 of the length of the absorbent article 10. The absorbent article 10 can have a chassis 52 (sometimes referred to as a central chassis or centerpiece) that includes a topsheet 26, a backsheet 28, and an absorbent core 30 at least partially disposed between the topsheet 26 and the backsheet 28, and an optional acquisition material 38 that is similar to that described above with respect to the absorbent article 10. Figures 1 to 3 The absorbent article 10 may comprise a front belt 54 located in the front waist region 12 and a back belt 56 located in the back waist region 16. The chassis 52 may be joined to the wearer-facing surface 4 of the front belt 54 and the back belt 56, or to the garment-facing surface 2 of the belts 54, 56. The side edges 23 and 25 of the front belt 54 may be joined to the side edges 27 and 29 of the back belt 56, respectively, to form two side seams 58. The side seams 58 may be any suitable seams known to those skilled in the art, such as, for example, abutting seams or overlapping seams. When the side seams 58 are permanently formed or refastenably closed, the absorbent article 10 in pant form has two leg openings 60 and a waist opening perimeter 62. The side seams 58 may be permanently joined using, for example, an adhesive or adhesive portion, or may be refastenably closed using, for example, hook and loop fasteners.
[0044] In another form, the absorbent article may be Figure 25The insert 2500 shown for use with a reusable outer cover 2502. Insert 2500 can be disposable or reusable. Reusable outer cover 2502 can include a fabric or other material and can be constructed as pants or a taped diaper. In the context of taping, reusable outer cover 2502 can include a fastening system for joining the front waist area of the reusable outer cover to the back waist area. The fastening system can include, for example, snaps, buttons and / or hooks and loops. Insert 2500 can include a liquid-permeable top sheet, a liquid-impermeable back sheet and an absorbent core at least partially positioned between the top sheet and the back sheet. One or more collection and / or distribution materials can be positioned between the top sheet and the absorbent core. Insert 2500 can include one or more pairs of leg cuffs and can be free of ear pieces, side panels and / or waistbands. In some cases, a nonwoven material can be positioned on the side of the back sheet facing the clothes. The garment-facing surface of insert 2500 can be attached to the wearer-facing surface of reusable outer cover 2502 via adhesive, hook-and-loop fasteners, or other joining methods. An example insert and reusable outer cover system is disclosed in U.S. Patent No. 9,011,402, issued to Roe et al. on April 21, 2015. The insert or reusable outer cover can include a biobased content value of, for example, about 10% to about 100%, about 25% to about 100%, about 40% to about 100%, about 50% to about 100%, about 75% to about 100%, or about 90% to about 100%, as measured using ASTM D6866-10 Method B.
[0045] bring
[0046] See also Figure 7 and Figure 8 The front and back belts 54, 56 may include front and back inner belt layers 66, 67 and front and back outer belt layers 64, 65 having an elastomeric material (e.g., strands 68 or a film (which may be apertured)) at least partially disposed between the inner and outer belt layers. The elastic elements 68 or film may be relaxed (including being cut) to reduce elastic strain on the absorbent core 30, or may alternatively be continuously distributed throughout the absorbent core 30. The elastic elements 68 may have uniform or variable spacing between them in any portion of the belt. The elastic elements 68 may also be pre-strained by the same amount or by different amounts. The front and / or back belts 54, 56 may have one or more elastic-free zones 70 where the chassis 52 overlaps the front and back belts 54, 56. In other cases, at least some of the elastic elements 68 may extend continuously over the chassis 52.
[0047] The front inner belt layer 66 and the rear inner belt layer 67 and the front outer belt layer 64 and the rear outer belt layer 65 can be joined using adhesives, heat bonds, pressure bonds or thermoplastic bonds. Various suitable belt layer configurations can be found in US Patent Application Publication No. 2013 / 0211363.
[0048] The front and rear belt end edges 55, 57 may extend longitudinally beyond the front and rear chassis end edges 19, 21 (e.g., Figure 6 25 and 27 and 29 can extend laterally beyond chassis sides 22 and 24. Front and rear belts 54 and 56 can be continuous (i.e., have at least one continuous layer) from belt side edge to belt side edge (e.g., lateral distances from 23 to 25 and from 27 to 29). Alternatively, front and rear belts 54 and 56 can be discontinuous from belt side edge to belt side edge (e.g., lateral distances from 23 to 25 and from 27 to 29), making them discrete.
[0049] As disclosed in U.S. Patent No. 7,901,393, the longitudinal length (along the central longitudinal axis 50) of the rear strap 56 can be greater than the longitudinal length of the front strap 54, and this can be particularly useful for increasing hip coverage when the rear strap 56 has a greater longitudinal length than the front strap 54 adjacent to or proximate the side seams 58.
[0050] The front outer belt layer 64 and the rear outer belt layer 65 can be separated from each other so that the layers are discrete, or the layers can be continuous so that the layers extend continuously from the front belt end edge 55 to the rear belt end edge 57. The same can be said for the front inner belt layer 66 and the rear inner belt layer 67 - that is, they can also be longitudinally discrete or continuous. Furthermore, the front outer belt layer 64 and the rear outer belt layer 65 can be longitudinally continuous, while the front inner belt layer 66 and the rear inner belt layer 67 are longitudinally discrete so that gaps are formed between them - the gaps between the front and rear inner and outer belt layers 64, 65, 66 and 67 are shown in FIG. Figure 7 and the gap between the front inner belt layer 66 and the rear inner belt layer 67 is shown in Figure 8 middle.
[0051] The front and back belts 54, 56 may include slits, holes, and / or perforations that provide increased breathability, softness, and a garment-like texture. The underwear-like appearance may be enhanced by substantially aligning the waist and leg edges at the side seams 58 (see FIG. Figure 4 and 5 ).
[0052] The front and rear straps 54, 56 may include graphics (see, e.g., Figure 1The graphic may extend substantially around the entire perimeter of the absorbent article 10 and may be disposed across the side seams 58 and / or across the proximal front and back tape seams 15, 17; or alternatively, disposed adjacent the seams 58, 15, and 17 in the manner described in U.S. Patent No. 9,498,389 to create a more underwear-like article. The graphic may also be discontinuous.
[0053] Alternatively, rather than attaching belts 54 and 56 to chassis 52 to form a pant, discrete side panels may be joined to chassis side edges 22 and 24. Suitable forms of pants including discrete side panels are disclosed in U.S. Patent Nos. 6,645,190, 8,747,379, 8,372,052, 8,361,048, 6,761,711, 6,817,994, 8,007,485, 7,862,550, 6,969,377, 7,497,851, 6,849,067, 6,893,426, 6,953,452, 6,840,928, 8,579,876, 7,682,349, 7,156,833, and 7,201,744.
[0054] Top sheet
[0055] The topsheet 26 is the portion of the absorbent article 10 that contacts the wearer's skin. The topsheet 26 may be joined to a portion of a backsheet 28, an absorbent core 30, barrier leg cuffs 32, and / or any other layer known to those of ordinary skill in the art. The topsheet 26 may be compliant, feel soft, and non-irritating to the wearer's skin. In addition, at least a portion or all of the topsheet may be liquid permeable, thereby allowing liquid body exudates to easily seep through its thickness. Suitable topsheets can be made from a variety of materials, such as woven or nonwoven materials of porous foam, reticulated foam, open-cell plastic film, woven material, nonwoven material, natural fibers (e.g., wood fibers or cotton fibers), synthetic fibers or filaments (e.g., polyester fibers or polypropylene fibers or PE / PP bicomponent fibers or mixtures thereof), or a combination of natural and synthetic fibers. The topsheet may have one or more layers. The topsheet may be open-cell ( Figure 2, element 31), may have any suitable three-dimensional features and / or may have multiple embossings (e.g., a pattern of bonds). The topsheet may be apertured by over-bonding the material and subsequently breaking the over-bonds by ring rolling, such as disclosed in U.S. Patent No. 5,628,097, issued to Benson et al. on May 13, 1997, and disclosed in U.S. Patent Application Publication No. US 2016 / 0136014 to Arora et al. Any portion of the topsheet may be coated with a skin care composition, antimicrobial agent, surfactant, and / or other benefit agent. The topsheet may be hydrophilic or hydrophobic or may have hydrophilic and / or hydrophobic portions or layers. If the topsheet is hydrophobic, apertures will typically be present to allow body exudates to pass through the topsheet. The topsheet may include one or more layers of spunlace material with or without apertures. The topsheet may include a variable basis weight nonwoven material.
[0056] negatives
[0057] Backsheet 28 is generally that part of the surface positioning facing clothes of absorbent article 10 adjacent absorbent cores 30.Can be joined on the top sheet 26 of absorbent article, outer cover material 40, absorbent cores 30 and / or the part of any other layer by any attachment method well known by persons skilled in the art.Backsheet 28 prevents or at least suppresses the body exudates that absorbent cores 10 absorbs and holds from soiling goods, such as bed sheet, underwear and / or clothing.Backsheet is generally liquid-impermeable, or at least is liquid-impermeable basically.Backsheet can for example be or comprise thin plastic film (such as thermoplastic film), and this thin plastic film has the thickness of about 0.012mm to about 0.051mm.Other suitable backsheet materials can comprise breathable material, and this breathable material allows steam to escape from absorbent article, still prevents or at least suppresses body exudates from seeing through backsheet simultaneously.
[0058] Outer cover material
[0059] The outer cover material (sometimes referred to as a backsheet nonwoven material) 40 may include one or more nonwoven materials joined to and covering the backsheet 28. The outer cover material 40 forms at least a portion of the garment-facing surface 2 of the absorbent article 10 and effectively "covers" the backsheet 28 so that no film is present on the garment-facing surface 2. The outer cover material 40 may include a pattern of bonds, apertures, and / or three-dimensional features. The outer cover material 40 may be a hydroentangled nonwoven material.
[0060] absorbent core
[0061] As used herein, the term "absorbent core" 30 refers to the component of the absorbent article 10 that is disposed within the article for absorbing and containing liquids, such as urine, received by the absorbent article. Thus, the absorbent core typically has a high absorbent capacity. Figures 9 to 11 An example absorbent core 30 is schematically shown in . The absorbent core comprises absorbent material 72 typically enclosed within or sandwiched between core pockets 74.
[0062] The core wrap can be a single material that is folded and attached to itself, or it can include separate top and bottom layers that can be bonded or otherwise joined together. The absorbent material typically includes superabsorbent particles, which are optionally mixed with cellulose fibers. As used herein, "absorbent core" does not include any acquisition system, top sheet, or back sheet of the absorbent article.
[0063] exist Figures 9 to 11 The example absorbent core 30 shown alone in FIG is in a dry state (before use). The absorbent core may generally have a generally rectangular shape defined by its longitudinal edges and transverse front and rear edges, or may have other shapes.
[0064] The absorbent material 72 may be deposited as an absorbent layer having a generally rectangular profile, such as Figure 9 Various absorbent cores can also be used. The layer of absorbent material 72 can also have a non-rectangular perimeter (a "shaped" core). In particular, the absorbent material 72 can define a taper along its width toward the center region of the core (or a "dog bone" shape). In this way, the absorbent material deposition area can have a relatively narrow width in the area of the core intended to be placed in the crotch region of the absorbent article. This can provide, for example, better wearing comfort. Other shapes such as "T" or "Y" or "hourglass" shapes can also be used for the absorbent material area.
[0065] The absorbent material 72 may be any conventional absorbent material known in the art. For example, the absorbent material may comprise a blend of cellulose fibers and superabsorbent particles ("SAP"), wherein the percentage of SAP is typically in the range of about 50% to about 75% by weight of the absorbent material. The absorbent material may also be free of cellulose fibers, as is known in so-called airfelt-free cores, wherein the absorbent material consists of or consists essentially of SAP. The absorbent material may also be a high internal phase emulsion foam. "Superabsorbent polymer" or "SAP" herein refers to absorbent materials that are typically cross-linked polymer materials that can absorb at least 10 times their own weight in an aqueous 0.9% saline solution as measured using the "Centrifuge Retention Capacity" (CRC) test (EDANA method WSP 241.2.R3 (12)). The SAP may particularly have a CRC value of at least 20 g / g, particularly 20 g / g to 40 g / g. As used herein, "superabsorbent polymer particles" refers to superabsorbent polymer materials that are in particulate form so as to be flowable in a dry state.
[0066] Various absorbent core designs containing large amounts of SAP have been proposed in the past, see, for example, U.S. Patent No. 5,599,335 (Goldman), EP 1,447,066 (Busam), WO 95 / 11652 (Tanzer), U.S. Patent Application Publication No. 2008 / 0312622 A1 (Hundorf), and WO 2012 / 052172 (Van Malderen). Specifically, SAP printing techniques such as those disclosed in U.S. Patent Application Publication No. 2006 / 024433 (Blessing), U.S. Patent Application Publication No. 2008 / 0312617, and U.S. Patent Application Publication No. 2010 / 0051166 A1 (both to Hundorf et al.) can be used. However, the present disclosure is not limited to a particular type of absorbent core. The absorbent core may also include one or more adhesives, such as an auxiliary adhesive applied between the inner surface of one (or both) of the core wrap layers and the absorbent material to reduce leakage of the SAP outside the core wrap. Microfiber adhesive webs can also be used in cores that do not contain airfelt, as described in the Hundorf reference above. For simplicity, these adhesives are not shown in the drawings. Other core configurations that include a high loft nonwoven substrate (such as a carded nonwoven layer) having a porous structure into which SAP particles have been deposited can also be used in the present disclosure.
[0067] The absorbent material may be deposited as a continuous layer within the core wrap. The absorbent material may also be present discontinuously, for example in the form of individual pockets or strips of absorbent material enclosed within the core wrap and separated from one another by material-free joining areas. A continuous layer of absorbent material, in particular SAP, may also be obtained by combining two absorbent layers with matching discontinuous absorbent material application patterns, wherein the resulting layer is substantially continuously distributed in the absorbent particulate polymer material areas, such as Figures 10 and 11 As taught, for example, in U.S. Patent Application Publication No. 2008 / 312,622 Al (Hundorf), each absorbent material layer can thus include a pattern having absorbent material landing areas and absorbent material-free land areas, wherein the absorbent material landing areas of the first layer substantially correspond to the absorbent material-free land areas of the second layer, and vice versa.
[0068] The basis weight (amount deposited per unit surface area) of the absorbent material can also be varied to create a profiled distribution of the absorbent material, particularly in the longitudinal direction of the core, but also in the transverse direction, or both, to provide greater absorbency toward the center and midsection of the core. The absorbent core can also include one or more longitudinally (or otherwise) extending channels 76, which are regions of the absorbent layer that are substantially free of absorbent material within the absorbent material layer. The top side of the core wrap can advantageously be bonded to the bottom side of the core via adhesive, mechanical, or ultrasonic bonding through these material-free regions. Examples of such channels in cores without airfelt can be found in WO 2012 / 170778 (Rosati et al.) and US 2012 / 0312491 (Jackels). Channels can, of course, also be formed in absorbent cores comprising a mixture of cellulose fibers and SAP particles. These channels can embody any suitable shape, and any suitable number of channels can be provided. In other cases, the absorbent core can be embossed to create an impression of channels. Figures 9 to 11 The absorbent core in is only an example absorbent core. Many other absorbent cores with or without channels are also within the scope of the present disclosure.
[0069] Elastic waist feature structure
[0070] See also Figure 1 and Figure 2The absorbent article 10 may include one or more elastic waistbands 36. The one or more elastic waist features 36 may comprise a waistband or waist cuff. The elastic waist features 36 may be located on the garment-facing surface 2 or the wearer-facing surface 4. Alternatively, the elastic waist features 36 may be located between the topsheet 26 and the backsheet 28. By way of example, a first elastic waist feature 36 may be present in the front waist region 12 near the front waist edge 18, and a second elastic waist feature 36 may be present in the back waist region 16 near the back waist edge 20. The elastic waist features 36 may help seal the absorbent article 10 around the wearer's waist and at least inhibit body exudates from escaping the absorbent article 10 around the waist opening. In some cases, the elastic waist features may completely surround the waist opening of the absorbent article 10. The elastic waist features 36 may include an elastic film joined to the topsheet 26 and a nonwoven material covering the elastic film. In other cases, the elastic waist features 36 may include an elastic film sandwiched between two nonwoven materials. The elastic film may be ultrasonically bonded or otherwise bonded or attached to one or more nonwoven materials. The one or more nonwoven materials may be hydroentangled. The elastic film and / or nonwoven materials may be pre-activated (i.e., activated before being joined together), or the formed elastic film / nonwoven laminate may be activated after the laminate is formed.
[0071] Collect materials
[0072] See also Figure 1 、 Figure 2 、 Figure 7 and Figure 8 One or more acquisition materials 38 may be present at least partially between the topsheet 26 and the absorbent core 30. The acquisition material 38 is typically a hydrophilic material that provides significant wicking of body exudates. These materials can dehydrate the topsheet 26 and quickly draw body exudates into the absorbent core 30. The acquisition material 38 may comprise, for example, one or more nonwoven materials, foams, formed films, apertured formed films, cellulosic materials, cross-linked cellulosic materials, airlaid cellulosic nonwovens, spunlace materials, or combinations thereof. In some cases, portions of the acquisition material 38 may extend through portions of the topsheet 26, portions of the topsheet 26 may extend through portions of the acquisition material 38, and / or the topsheet 26 may be nested with the acquisition material 38. Typically, the acquisition material 38 may have a width and length that is less than the width and length of the topsheet 26. The acquisition material may serve as a secondary topsheet in the context of a feminine pad. The acquisition material may have one or more channels as described above with reference to the absorbent core 30 (including the embossed pattern). The channels in the acquisition material may or may not align with the channels in the absorbent core 30. In one example, the first acquisition material may comprise a nonwoven material and the second acquisition material may comprise a cross-linked cellulosic material.
[0073] Landing Zone
[0074] See also Figure 1 and Figure 2 , the absorbent article 10 can have a landing zone area 44 formed in a portion of the garment-facing surface 2 of the outer cover material 40. If the absorbent article 10 fastens from front to back, the landing zone area 44 can be located in the rear waist region 16; or if the absorbent article 10 fastens from back to front, the landing zone area 44 can be located in the front waist region 16. In some cases, the landing zone 44 can be or include one or more discrete nonwoven materials that are attached to a portion of the outer cover material 40 in the front waist region 12 or the rear waist region 16, depending on whether the absorbent article is fastened from the front or the back. In essence, the landing zone 44 is configured to receive the fastener 46 and can include, for example, a plurality of loops configured to engage with a plurality of hooks on the fastener 46, or vice versa.
[0075] Wetting indicator / graphics
[0076] See also Figure 1 , the absorbent article 10 of the present disclosure may include graphics 78 and / or wetness indicators 80 visible from the garment-facing surface 2. The graphics 78 may be printed on the landing zone 40, the backsheet 28, and / or other locations. The wetness indicators 80 are typically applied to the side of the backsheet 28 that faces the absorbent core so that they can be contacted by body exudates within the absorbent core 30. In some cases, the wetness indicators 80 may form part of the graphics 78. For example, the wetness indicators may appear or disappear, and characters may be added / removed from some graphics. In other cases, the wetness indicators 80 may be coordinated with the graphics 78 (e.g., the same design, the same pattern, the same color) or not.
[0077] Front and back ear pieces
[0078] See above mentioned Figure 1 and Figure 2In a taped diaper, the absorbent article 10 may have front ears 47 and / or back ears 42. In most taped diapers, only one set of ears is required. A single set of ears may include fasteners 46 configured to engage the landing zone or landing zone area 44. If two sets of ears are provided, in most cases, only one set of ears may have fasteners 46, while the other set of ears does not. The ears or portions thereof may be elastic or may include elastic sheets. In one example, an elastic film or elastic strands may be positioned between the first and second nonwoven materials. The elastic film may be apertured or non-apertured. The ears may be formed. The ears may be integral (e.g., extensions of the outer cover material 40, the backsheet 28, and / or the topsheet 26), or may be discrete components attached to the chassis 52 of the absorbent article on the wearer-facing surface 4, the garment-facing surface 2, or between both surfaces 4 and 2.
[0079] masking layer
[0080] One or more masking layers or materials may be provided in the absorbent article 10. The masking layer may be a layer that provides a soft feel when the absorbent article is touched from the garment-facing surface 2 or the wearer-facing surface 4. The masking layer may "mask" the graininess potentially caused by the absorbent material 72 (such as superabsorbent polymer). The masking layer may "mask" body exudates, making them invisible when viewing the wearer-facing surface 4 or the garment-facing surface 2 of the absorbent article 10. The masking layer may have a basis weight ranging from about 15 gsm to about 50 gsm, or from about 15 gsm to about 40 gsm. The masking layer may include one or more nonwoven materials (e.g., hydroentangled nonwovens), foams, pulp layers, and / or other suitable materials. The masking layer may be the outer cover material 40. The masking layer may be a layer forming the garment-facing side or the wearer-facing side of the core bag 74. The masking layer may be a separate material positioned between the garment-facing side of the core bag 74 and the liquid-impermeable backsheet 28.
[0081] Stretch laminate
[0082] Various elements of the absorbent article 10 described herein may include stretch laminates. For example, either of the belts 54 and 56 and / or either of the ears 42, 47 may include a stretch laminate as described below. The waistband 36 may also include a stretch laminate. Such laminates may include an elastomeric layer that provides extensibility to the laminate and one or more outer layers that are less stretchable but are suitable for providing durability and desired tactile properties. In this manner, the laminate allows the components of the absorbent article to closely and comfortably contact the wearer while providing a desired aesthetic quality. Figures 23A to 23F 90 are cross-sectional views of various stretch laminates. Figure 23AAs shown, the stretch laminate 90 may include a first cover layer 100 and an elastomeric film layer 300 joined via one or more ultrasonic bonds 400. The elastomeric film layer 300 may have one or more skin layers, such as a first skin layer 301 providing a first surface and a second skin layer 302 providing a second surface. Figure 23B As shown, the stretch laminate 90 may include a first cover layer 100 and a second cover layer 200 with an elastomeric film layer 300 sandwiched therebetween in a facing relationship to both the first cover layer 100 and the second cover layer 200. All three layers may be joined via one or more ultrasonic bonds 400. Figure 23C and Figure 23D As shown, all or a portion of the first cover layer 100 may include one or more layers, such as a first layer 101 and a second layer 102, which may have the same composition or different compositions. Similarly, all or a portion of the second cover layer 200 may include one or more layers, such as a first layer 201 and a second layer 202, which may have the same composition or different compositions. Figure 23E and Figure 23F As shown, a portion of the first cover layer 100 or the second cover layer 200 can be folded over to provide a multi-layer structure on all or a portion of the opposing side of the stretch laminate 90.
[0083] The elastomeric film layer 300 of the stretch laminate 90 can include a single layer or multiple layers of one or more elastically extensible materials. The elastically extensible material can have a thickness between about 10 μm and about 100 μm, or between about 20 μm and about 60 μm, or between about 30 μm and about 50 μm, or in some embodiments, about 40 μm. The elastically extensible material can include an elastomeric polyolefin, and in some embodiments, a polyolefin (POE) blown film.
[0084] The elastically extensible material may include a modified resin. The elastically extensible material may include various additives. Suitable additives (including but not limited to stabilizers, antioxidants, and antibacterial agents) may be used to prevent thermal, oxidative, and biochemical degradation of the elastically extensible material. The additives may comprise from about 0.01% to about 60% of the total weight of the elastically extensible material. In other embodiments, the composition comprises from about 0.01% to about 25% of the additives. In other suitable embodiments, the elastically extensible material comprises from about 0.01% to about 10% by weight of the additives.
[0085] The ultrasonic bonds 400 preferably eliminate the need for any adhesive, however, an adhesive may be employed to join the layers 100, 200, 300 of the stretch laminate 90. The adhesive may be selected from any adhesive known to provide suitable attachment between the elastomeric film layer 300 and the cover layers 100, 200. In some embodiments, the adhesive may be a hot melt adhesive having a basis weight of less than about 15 gsm.
[0086] The elastomeric film layer 300 can be mechanically preactivated prior to attachment to at least one cover layer 100, 200. For example, the elastomeric film layer 300 can be preactivated by stretching it transverse to its web direction by more than 50% (i.e., strain >50%). In some embodiments, the stretching occurs by approximately 100% to approximately 500% relative to the initial width of the elastomeric film layer 300. In alternative embodiments, the elastomeric film layer 300 can be stretched in the web direction, in a direction different from or transverse to the web direction, or in a combination of these directions. The term "stretching" refers to the fact that the stretching of the elastomeric film layer 300 is not fully reversible, and the inelastic portion causes the film to have a greater width after preactivation (i.e., the elastomeric film does not have a 100% recovery rate and therefore has a deformation percentage value). After stretching, the elastomeric film layer 300 retracts, and its width can be approximately 10% to approximately 30% wider relative to the initial width of the film. In other words, after the pre-activated stretching and retraction described in detail below, the elastomeric film layer 300 can exhibit a deformation of about 10% to about 30%.
[0087] According to various embodiments in which the elastomeric film layer 300 comprises both an elastically extensible material and at least one skin layer disposed on the elastically extensible material, the preactivation process can physically alter these materials differently, for example, because these materials have different elastic and recovery properties. During preactivation, the skin layers 301 and / or 302 are stretched similarly to the elastically extensible material (i.e., subjected to similar strain). However, after stretching, the skin layers and the elastically extensible material will retract and recover differently (i.e., have different set points). Compared to the elastically extensible material, the skin layers are less elastic and therefore have less recovery after stretching, also known as a higher set point. The skin layers are also much thinner than the elastically extensible material. Therefore, when the thicker elastically extensible material retracts and recovers after being stretched before activation, it forces the attached skin layer to retract with it. However, because the skin layers cannot recover as much as the elastically extensible material, they shrink and wrinkle. Consequently, the cross-sectional profile and top-view appearance of the elastomeric film layer 300 are modified after the preactivation process.
[0088] In some configurations, it may be desirable to provide a stretch laminate, or an element of an absorbent article 10 comprising such a stretch laminate (such as a belt or ear), with zones of varying performance properties. Such enhanced properties may include breathability, softness, strength, thickness, wrinkle uniformity, modulus, aesthetic enhancement, tear resistance, combinations of any of the foregoing, and / or zones having varying values of any of the foregoing characteristics. According to various embodiments, the stretch laminate and / or an element comprising the stretch laminate may include: embossing, apertures, perforations, slits, fused materials or coatings, compressed materials, secondary bonds positioned away from the chassis attachment bonds, plastic deformation, and creases.
[0089] Figure 24 1 is an exploded perspective view of exemplary ears 42, 47 of a stretch laminate 90 that schematically illustrates exemplary surface modifications. The precursor material may be surface modified prior to lamination. One or more surface modifications 800 (also referred to as morphological features) are shown in one or more layers of the laminate. Surface modifications 800 may include embossing 802, cuts (e.g., apertures, perforations, slits), melted material or coating, compressed material 808, plastic deformation 810 (e.g., activated stripes 812), creases 814, post-formation bonds 816 (e.g., adhesive bonds, pressure bonds, thermal bonds, and / or ultrasonic bonds applied after the substrate is formed), and combinations thereof. Surface modifications may be applied after the initial formation of the substrate itself, thereby forming a modified substrate. In other words, thermally bonded fibers used to create a nonwoven are not considered surface modifications. Once the nonwoven has been formed, creating bonds on the nonwoven is considered a surface modification. Additionally or alternatively, surface modifications 800 on different layers may work together to provide enhanced properties.
[0090] One or more structural features can be formed on the laminate after the initial bonding of the layers. The structural features can include embossing, cutouts (e.g., holes, perforations, slits), molten materials or coatings, compressed materials, plastic deformation (e.g., activated strips), folds, secondary bonds (e.g., adhesive bonds, pressure bonds, thermal bonds, and / or ultrasonic bonds applied after the initial bonding of the laminate), and combinations thereof. The structural features or surface modifications can be in the form of design elements.
[0091] It will be appreciated that a combination of one or more surface modifications and one or more structural features may be employed. It will also be appreciated that certain cover layer substrates may be selected based on their ease of surface modification and / or formation of structural features. By way of non-limiting example, if the substrate and / or laminate are mechanically activated, a carded nonwoven may be selected. Lower modulus materials such as polyethylene-based materials may be more suitable for modification by laser energy.
[0092] packaging
[0093] The absorbent articles of the present disclosure can be placed in packages. The packages can comprise polymer films and / or other materials. Graphics and / or indicia related to the properties of the absorbent articles can be formed on, printed on, positioned on, and / or placed on an exterior portion of the packages. Each package can include multiple absorbent articles. The absorbent articles can be stacked under compression to reduce the size of the packages while still providing a sufficient number of absorbent articles per package. By packaging the absorbent articles under compression, caregivers can easily handle and store the packages, while also providing manufacturers with distribution savings due to the reduced size of the packages.
[0094] series
[0095] A "collection" refers to a display of packages of disposable absorbent articles with different article configurations (e.g., different elastomeric materials (compositionally and / or structurally) in the side panels, side wings, and / or belt flaps, different graphic elements, different product structures, fasteners, or none). The packages may have the same brand and / or sub-brand and / or the same trademark registration and / or be manufactured by or for a common manufacturer, and such packages may be available at a common point of sale (e.g., oriented adjacent to each other in a given area of a retail store). A collection is marketed as a series of products, typically with similar packaging elements (e.g., type of wrapper, film, paper, primary color, design theme, etc.), which conveys to consumers that the different individual packages are part of a larger collection. Collections often share the same brand, such as "Huggies," and the same sub-brand, such as "Pull-Ups." Different products within a collection may share the same brand, "Huggies," and the sub-brand, "Little Movers." The differences between the "Pull-Ups" and "Little Movers" products in the product line may include product form, application method, different fastening designs, or other structural elements designed to address differences in physical or mental development. Additionally, the packaging is significantly different in that "Pull-Ups" are packaged in a predominantly blue or pink film pouch, while "Little Movers" are packaged in a predominantly red film pouch.
[0096] With further reference to a "collection," as another example, a collection may be formed of different products having different product forms that are manufactured by the same manufacturer, e.g., "Kimberly-Clark," and have a common trademark registration, e.g., one product may have the brand name "Huggies," and a sub-brand such as "Pull-Ups." Different products in a collection may have the brand / sub-brand "Good Nites," both of which are registered trademarks of The Kimberly-Clark Corporation and / or manufactured by Kimberly-Clark. Collections also typically share common trademarks, including trademarks for the brand, sub-brands, and / or features and / or benefits of the entire collection. An "online collection" refers to a "collection" that is distributed through a commonly used online source.
[0097] sanitary napkin
[0098] See also Figure 12 The absorbent article of the present disclosure may be a sanitary napkin 110. The sanitary napkin 110 may include a liquid-permeable topsheet 114, a liquid-impermeable or substantially liquid-impermeable backsheet 116, and an absorbent core 118. The liquid-impermeable backsheet 116 may or may not be vapor-permeable. The absorbent core 118 may have any or all of the features described herein with respect to the absorbent core 30, and in some forms, may include a secondary topsheet 119 (STS) in place of the acquisition material disclosed above. The STS 119 may include one or more channels (including embossed patterns) as described above. In some forms, the channels in the STS 119 may align with the channels in the absorbent core 118. The sanitary napkin 110 may also include wings 120 extending outwardly relative to the longitudinal axis 180 of the sanitary napkin 110. The sanitary napkin 110 may also include a lateral axis 190. The wings 120 may be joined to the topsheet 114, the backsheet 116, and / or the absorbent core 118. The sanitary napkin 110 may further include a front edge 122, a back edge 124 longitudinally opposite the front edge 122, a first side edge 126, and a second side edge 128 longitudinally opposite the first side edge 126. A longitudinal axis 180 may extend from a midpoint of the front edge 122 to a midpoint of the back edge 124. A lateral axis 190 may extend from a midpoint of the first side edge 128 to a midpoint of the second side edge 128. The sanitary napkin 110 may further include additional features commonly found in sanitary napkins as are known in the art.
[0099] Barrier leg cuffs
[0100] See also Figure 1 and Figure 2For example, the absorbent article 10 of the present disclosure may include a pair of barrier leg cuffs 32. The barrier leg cuffs 32 may extend at least partially or completely between the front edge 18 and the rear edge 20 of the absorbent article 10 on opposite sides of the central longitudinal axis 50 and may be present at least in the crotch region 14. Each barrier leg cuff 32 in the pair of barrier leg cuffs may be formed from a single web of material. Figure 13 As shown, at least a portion of the proximal portion 1310 of the barrier leg cuff 32 can be directly or indirectly joined to the chassis 52. The inner distal portion 1312 of the barrier leg cuff 32 can be opposite the proximal portion 1310 and can be configured to contact the wearer's skin during use of the absorbent article 10. Thus, at least a portion or all of the inner distal portion 1312 of the barrier leg cuff 32 can be unattached to the chassis 52. For example, at least a portion of the inner distal portion 1312 of the barrier leg cuff 32 disposed in the crotch region 14 of the absorbent article 10 can be unattached to the chassis 52, thereby allowing the inner distal portion 1312 of the barrier leg cuff 32 to remain in contact with the wearer's body during wear, particularly when the wearer is in motion. The web of material forming the barrier leg cuff 32 can be folded laterally outward to form a fold 1305 between the proximal portion 1310 and the inner distal portion 1312 of the barrier leg cuff 32. The formation of the reverse fold 1305 results in the formation of the reversed inner cuff 1300. The web material can be further folded laterally inward to form the reversed fold edge 1302 and laterally outward to form the inner fold edge 1301. The reversed fold edge 1302 can be disposed laterally outboard of the inner fold edge 1301 when the absorbent article is in a flat, uncontracted configuration.
[0101] like Figure 13As shown, the inner fold edge 1301 and the reverse fold edge 1302 can be spaced apart from each other so as to form a broad inner face 1320 of the reversed inner cuff 1300. This inner face 1320 of the reversed inner cuff 1300 can be configured to face the wearer's body when the absorbent article 10 is worn. The distance (BW) between the inner fold edge 1301 and the reverse fold edge 1302 forming the inner face 1320 of the reversed inner cuff 1300 can be between about 8 mm and about 35 mm, between about 10 mm and about 30 mm, between about 12 mm and about 25 mm, or between about 15 mm and about 20 mm, with all values within these ranges and any ranges therein or formed therefrom being specifically recited. The inner cuff 1300 with a wide inner face 1320, as described herein, can reduce the incidence of body exudates leaking from the leg cuff 32 of an absorbent article by forming a relatively wide gasket area between the leg cuff 32 area of the absorbent article and the wearer's skin. This wide gasket area can increase the probability that at least a portion of the barrier leg cuff 32 remains in contact with the wearer during use of the absorbent article. The inner cuff 1300 with a wide inner face 1320, as described above, can also reduce the incidence of indentations on the wearer's skin. Indentations typically occur when concentrated forces, such as the force of elastic components of an absorbent article, press against the wearer's skin. The inner cuff 1300 with a wide inner face 1320 of the present disclosure can reduce or eliminate the incidence of indentations, in part because the force of the elastic components is spread across the wide inner face 1320 rather than being concentrated in a narrower portion of the cuff.
[0102] Various portions of the barrier leg cuff 32 can be directly or indirectly joined to a portion of the chassis 52 via chassis attachment bonds 1322. As described above, at least a portion of the proximal portion 1310 of the barrier leg cuff 32 can be joined to the chassis 52. A portion of the proximal portion 1310 of the barrier leg cuff 32 can be joined to the chassis from the front end edge 18 to the rear end edge 20 of the absorbent article 10 via the chassis attachment bonds 1322. The barrier leg cuff 32 can be joined to the chassis 52 via adhesive, thermal bonds, pressure bonds, ultrasonic bonds, combinations thereof, or any other bonding methods known in the art. The joining of the barrier leg cuff 32 to the chassis 52 can be continuous, discontinuous, and / or intermittent. A portion of the barrier leg cuff 32, such as a portion of the proximal portion 1310 of the barrier leg cuff 32, can be joined to the topsheet 26 and / or the backsheet 28.
[0103] The reversed inner cuff 1300 can include an inner elastic element 1303 positioned adjacent to the inner folded edge 1301 and a reversed elastic element 1304 positioned adjacent to the reversed folded edge 1302. The inner elastic element 1303 and the reversed elastic element 1304 can each comprise a single elastic member or can each comprise a plurality of elastic members. The inner elastic element 1303 and the reversed elastic element 1304 can extend the entire length of each reversed inner cuff 1300. For example, where the reversed inner cuff 1300 extends from the front edge 18 to the rear edge 20 of the absorbent article 10, the inner elastic element 1303 and the reversed elastic element 1304 can also extend the length of the absorbent article between the front edge 18 and the rear edge 20. The inner elastic element 1303 and the reversed elastic element 1304 may not extend the entire length of each reversed inner cuff 1300. The inner elastic element 1303 and the return elastic element 1304 may extend only a portion of the length of the return inner cuff 1300, for example, only in the crotch region 14 or only in the crotch region 14 and the back waist region 16. The inventors have discovered that the return inner cuff 1300 of the present disclosure, comprising two distinct elastic elements (the inner elastic element and the return elastic element) spaced apart from one another, can form two independent gasket points between the inner cuff and the wearer's body, thereby reducing leakage of body exudates from the absorbent article during wear. To form two distinct gasket points within a single return inner cuff, the distance (EW) between the inner elastic element 1303 and the return elastic element 1304 can be between about 5 mm and about 15 mm, between about 6 mm and about 12 mm, or between about 8 mm and about 10 mm, with all values within these ranges and any ranges therein or therefrom being specifically recited.
[0104] The inner elastic element 1303 and the return elastic element 1304 can be attached to the return inner cuff 1300 along the entire length of the return inner cuff 1300, or the elastic elements 1303, 1304 can be attached to only a portion of the return inner cuff 1300. The inner elastic element 1303 and the return elastic element 1304 can be attached to the return inner cuff 1300 by any suitable means, such as by adhesives, thermal bonds, pressure bonds, ultrasonic bonds, and combinations thereof. The return elastic element 1304 can be attached to the web material forming the return inner cuff 1300 over a greater longitudinal length than the inner elastic element 1303. See Figure 15, the return elastic element 1304 can have a return elastic longitudinal attachment length (BL), wherein the return elastic element 1304 is attached to the web material forming the return inner cuff 1300 over a longitudinal length (BL) greater than the attachment length (IL) of the inner elastic element 1303, the longitudinal length (BL) being between about 1 mm and about 20 mm, between about 2 mm and about 15 mm, or between about 3 mm and about 10 mm, specifically reciting all values within these ranges and any ranges formed therein or therefrom. It is believed that a greater return elastic longitudinal attachment length (BL) compared to the inner elastic element attachment length (IL) results in a wear configuration in which both the return fold edge 1302 and the inner fold edge 1301 of the return inner cuff 1300 maintain contact with the wearer's skin during use.
[0105] The inner elastic element 1303 may include a single elastic member (e.g. Figure 16 ), or may include multiple elastic members (such as Figure 13 、 Figure 14 and Figure 17 ). The inner elastic element 1303 may include a first inner elastic member 1307. The inner elastic element 1303 may include a second inner elastic member 1309. The inner elastic element 1303 may include a third inner elastic member 1311. The first inner elastic member 1307, the second inner elastic member 1309, and the third inner elastic member 1311 may all be made of the same material, or they may be made of different materials. For example, the first inner elastic member 1307, the second inner elastic member 1309, and the third inner elastic member 1311 may all be elastic strands having the same or different linear densities.
[0106] The retracted elastic element 1304 may include a single elastic member (e.g. Figure 16 ), or may include multiple elastic members (such as Figure 13 、 Figure 14 and Figure 18 ). The retracted elastic element 1304 may include a first retracted elastic member 1313. The retracted elastic element 1304 may include a second retracted elastic member 1315. The retracted elastic element 1304 may include a third retracted elastic member 1317. The first retracted elastic member 1313, the second retracted elastic member 1315, and the third retracted elastic member 1317 may all be the same material, or they may be different materials. For example, the first retracted elastic member 1313, the second retracted elastic member 1315, and the third retracted elastic member 1317 may all be elastic strands having the same or different linear densities.
[0107] Regardless of the composition of the inner elastic element 1303 and the reversed elastic element 1304 (e.g., whether there is a single elastic member or multiple elastic members), the inner elastic element 1303 can be configured to exert a different contractile force than the reversed elastic element 1304. The inner elastic element 1303 can be configured to exert a greater contractile force than the reversed elastic element 1304. The inventors have discovered that a reversed inner cuff 1300 having a difference in contractile force between the elastic elements near the inner fold edge 1301 and the elastic elements near the reversed fold edge 1302 can allow the reversed inner cuff 1300 to better conform to the contours of the wearer during use of the absorbent article, thereby ensuring that both the area of the reversed inner cuff 1300 adjacent to the inner fold edge 1301 and the area adjacent to the reversed fold edge 1302 remain in contact with the wearer's body during use. Maintaining contact between the portion of the folded-back inner cuff 1300 and the wearer's body, particularly when the wearer is in motion and the body's contours may change, allows the inner cuff gasket to be maintained and reduces or prevents leakage of body exudates.
[0108] The return elastic element 1304 can be configured to exert a total contractile force that is between about 30% and about 95%, between 45% and about 90%, or between about 60% and about 85% of the total contractile force exerted by the inner elastic element 1303, specifically reciting all values within these ranges and any ranges therein or derived therefrom. The total contractile force exerted by the inner elastic element 1303 and the return elastic element 1304 can be established by any method known in the art, including selecting elastic members having different linear densities, elastic pre-straining (straining the elastic elements prior to attachment to the web material forming the barrier leg cuffs), and the like.
[0109] Regardless of whether the inner spring element 1303 and the return spring element 1304 are formed from a single elastic member or from a plurality of elastic members, the inner spring element 1303 can have a total linear density greater than the total linear density of the return spring element 1304. The inner spring element 1303 can have a total linear density between about 800 decitex and about 1500 decitex, between about 850 decitex and about 1450 decitex, between about 900 decitex and about 1400 decitex, or between about 940 decitex and about 1360 decitex, with all values within these ranges and any ranges therein or formed therefrom being specifically recited. Where the inner spring element 1303 comprises a plurality of elastic members, the individual linear densities of each elastic member are added together to produce the total linear density. The reflective elastic element 1304 can have a total linear density between about 240 dtex and about 1425 dtex, between about 255 dtex and about 1378 dtex, between about 270 dtex and about 1330 dtex, or between about 282 dtex and about 1295 dtex, specifically reciting all values within these ranges and any ranges therein or formed thereby. Where the reflective elastic element 1304 comprises a plurality of elastic members, the individual linear densities of each elastic member are added together to produce the total linear density. Each elastic member, including both the inner elastic element 1303 and the reflective elastic element 1304, can each have a linear density between about 350 dtex and about 1200 dtex, between about 400 dtex and about 1150 dtex, or between about 500 dtex and about 1000 dtex, specifically reciting all values within these ranges and any ranges therein or formed thereby.
[0110] Regardless of whether the inner elastic element 1303 and the reflective elastic element 1304 are formed from a single elastic member or from multiple elastic members, the inner elastic element 1303 can have a total prestrain that is greater than the total prestrain of the reflective elastic element 1304. The inner elastic element 1303 can have a prestrain between about 150% and about 350%, between about 175% and about 325%, or between about 200% and about 300%, specifically reciting all values within these ranges and any ranges therein or formed therefrom. The reflective elastic element 1304 can have a prestrain between about 150% and about 350%, between about 175% and about 325%, or between about 200% and about 300%, specifically reciting all values within these ranges and any ranges therein or formed therefrom. In the case where the inner elastic element 1303 and / or the reflective elastic element 1304 include multiple elastic members, the prestrain can be a measure of the prestrain of each elastic member, rather than the total prestrain of all elastic members. All elastic members constituting the inner elastic element 1303 may be configured to have the same pre-strain. Similarly, all elastic members constituting the return elastic element 1304 may be configured to have the same pre-strain.
[0111] See again Figure 13 , the inner elastic element 1303 can be formed of a plurality of inner elastic members 1307, 1309, and the retracted elastic element 1304 can be formed of a plurality of retracted elastic members 1313, 1315. In one form, the plurality of inner elastic members 1307, 1309 can each have the same linear density and be configured to have the same pre-strain. In another form, the plurality of inner elastic members 1307, 1309 can have different linear densities and be configured to have different pre-strains. In another form, the plurality of inner elastic members 1307, 1309 can each have the same linear density and be configured to have different pre-strains. In yet another form, the plurality of inner elastic members 1307, 1309 can each have different linear densities and be configured to have different pre-strains.
[0112] Still see Figure 13 , the multiple retracted elastic members 1313, 1315 can each have the same linear density and be configured to have the same pre-strain. In another form, the multiple retracted elastic members 1313, 1315 can have different linear densities and be configured to have different pre-strains. In another form, the multiple retracted elastic members 1313, 1315 can each have the same linear density and be configured to have different pre-strains. In yet another form, the multiple retracted elastic members 1313, 1315 can each have different linear densities and be configured to have different pre-strains. The inner elastic element 1303 and the retracted elastic element 1304 can each include more than two elastic members, such as Figure 14 As shown, the inner elastic element 1303 and the return elastic element 1304 are each formed by three elastic members.
[0113] See also Figure 16 , the inner elastic element 1303 can be formed from a single inner elastic member 1601, and the retracted elastic element 1304 can be formed from a single retracted elastic member 1602. In one form, the single inner elastic member 1601 and the single retracted elastic member 1602 can have the same linear density and be configured to have different pre-strains. The pre-strain of the inner elastic member 1601 can be greater than the pre-strain of the single retracted elastic member 1602. In another form, the single inner elastic member 1601 and the single retracted elastic member 1602 can be configured to have the same pre-strain and have different linear densities. The linear density of the single inner elastic member 1601 can be greater than the linear density of the single retracted elastic member 1602.
[0114] The inner spring element 1303 may include a different number of inner spring members than the number of retracted spring members comprising the retracted spring element 1304. Figure 17 , the inner elastic element 1303 may include a plurality of inner elastic members—such as Figure 17 1701 and a second inner elastic member 1702. The retracted elastic element 1304 may include a single retracted elastic member 1703. As described above, the individual elastic elements 1701, 1702, and 1703 may have the same linear density or different linear densities. Similarly, the individual elastic elements 1701, 1702, and 1703 may be configured to have the same pre-strain or may be configured to have different pre-strains. The inner elastic element 1303 may be configured to have a total contractile force greater than the total contractile force of the retracted elastic element 1304.
[0115] Now see Figure 18 , the inner elastic element 1303 may include a single elastic member 1801, and the return elastic element 1304 may include multiple elastic members - such as Figure 18 1802 and 1803 are shown. As described above, each elastic element 1801, 1802, and 1803 can have the same linear density or different linear densities. Similarly, each elastic element 1801, 1802, and 1803 can be configured to have the same pre-strain or can be configured to have different pre-strains. The inner elastic element 1303 can be configured to have a total contraction force greater than the total contraction force of the return elastic element 1304.
[0116] The barrier leg cuffs 32 can be configured so that when the absorbent article is in a flat, uncontracted configuration, at least a portion or all of the folded-back inner cuff 1300 can overlap the topsheet 24. It is believed that the partial or complete overlap of the folded-back inner cuff 1300 and the topsheet 26 can result in a reduced incidence of body exudates leaking from the absorbent article. It is believed that maintaining the folded-back inner cuff 1300 adjacent to the permeable topsheet 26 provides a greater likelihood that body exudates will be wicked through the topsheet 26 and locked in the absorbent core rather than escaping out the sides of the article.
[0117] At least a portion of the folded-back inner cuff 1300 may be joined to another portion of the web material forming the barrier leg cuff 32. Figure 15 , a portion of the folded-back inner cuff 1300 disposed in the front waist region 12 of the absorbent article 10 may be joined to a portion of the web material forming the barrier leg cuffs 32 by a first inner cuff attachment bond 1501. A portion of the folded-back inner cuff 1300 disposed in the rear waist region 16 of the absorbent article 10 may be joined to a portion of the web material forming the barrier leg cuffs 32 by a second inner cuff attachment bond 1502. Figure 19As can be seen in the cross-sectional view of a portion of the middle barrier leg cuff 32 disposed in the front waist region 12, a portion of the folded-back inner cuff 1300 formed by the inner distal portion 1312 of the web material forming the barrier leg cuff 32 is attached to the proximal portion 1310 of the web material by a first inner cuff attachment bond 1501. In other words, at least a portion of the folded-back inner cuff 1300 located between the inner folded edge 1301 and the folded-back folded edge 1302 can be joined to a portion of the web material disposed between the folded-back inner cuff 1300 and the topsheet 26 by the first inner cuff attachment bond 1501 and / or the second inner cuff attachment bond 1502. In addition, a portion of the web material forming the folded inner cuff 1300 and located between the inner fold edge 1301 and the folded fold edge 1302 can be joined to a portion of the web material located between the proximal portion 1310 of the barrier leg cuff and the folded portion 1305 by the first inner cuff attachment adhesive portion 1501 and / or the second inner cuff attachment adhesive portion 1502.
[0118] The portion of the barrier leg cuff 32 including the inner cuff attachment bonds 1501, 1502 may define an attachment area. Figure 15 As shown, a front attachment area (AR) may be provided in the front waist region 12. f ), and a rear attachment area (AR) may be provided in the rear waist region 14. r ). The front and back attachment areas may be separated by an area of the folded-back inner cuff 1300 that is not attached to another portion of the web material forming the barrier leg cuffs 32, which may be primarily disposed in the crotch region 14 of the absorbent article 10. Figure 19 and Figure 20 A cross-sectional view of the attached areas (ARf, ARr) and the unattached areas is shown. When the absorbent article 10 is in a flat, uncontracted state, the portion of the folded-back inner cuff disposed in the attached areas (AR f , AR r ) may have a width of the surface of the attachment area facing the wearer (Bw a ), and the portion of the folded-back inner cuff disposed outside the attachment area, such as in the crotch region 14, may have a surface width (BW) of the unattached area facing the wearer. u ). Width of the surface of the attachment area facing the wearer (Bw a ) can be greater than the width of the unattached area facing the wearer (BW u ) is large. The width of the surface of the attachment area facing the wearer (Bw a ) can be greater than the width of the unattached area facing the wearer (BW u ) is between about 0.5 mm and about 5 mm, between about 1 mm and about 3.5 mm, or about 2 mm, with all values within these ranges and any ranges therein or therefrom being specifically recited.
[0119] The inner cuff attachment bonds 1501, 1502 may be implemented by adhesives, heat bonds, pressure bonds, ultrasonic bonds, combinations thereof, or any other bonding methods known in the art. The inner cuff attachment bonds 1501, 1502 may be continuous, discontinuous, and / or intermittent.
[0120] like Figure 20 As shown, the inner cuff 1300 that is folded back may include an edge bond 2001 disposed within the inner cuff 1300 and between the inner elastic element 1303 and the folded back elastic element 1304. The edge bond 2001 may separate the inner elastic element 1303 from the folded back elastic element 1304 within the inner cuff 1300. The edge bond 2001 may be formed by adhesive, thermal bonding, pressure bonding, ultrasonic bonding, combinations thereof, or any other bonding method known in the art. The edge bond may be continuous, discontinuous, and / or intermittent. Without being bound by theory, it is believed that the edge bond 2001 may increase the rigidity of the inner cuff 1300 that is folded back, thereby allowing for greater stability and control during attachment of the barrier leg cuff 32 to the absorbent article. The increased rigidity due to the presence of the edge bond 2001 may allow for easier and more accurate placement of the barrier leg cuff 32 onto the absorbent article 10.
[0121] See also Figure 21 In addition to forming the inner cuff 1300 that is folded back as discussed herein, the web of material forming the barrier leg cuff 32 can also form an outer cuff 2100. The outer cuff 2100 can include an outer cuff fold edge 2114 and an outer cuff material edge 2116. The web of material forming the barrier leg cuff 32 can be folded laterally inward to form the outer cuff fold edge 2114. The outer cuff 2100 can form an outer distal portion 2102 of the barrier leg cuff 32 that is disposed laterally outward from the proximal portion 1310 of the barrier leg cuff 32 when the absorbent article 10 is in a flat, uncontracted state. The outer cuff 2100 can be disposed laterally outward from the topsheet 26 when the absorbent article 10 is in a flat, uncontracted state.
[0122] The outer cuff 2100 may include an outer cuff elastic element 2104. The outer cuff elastic element 2104 may be disposed adjacent to the outer cuff folded edge 2114. The outer cuff elastic element 2104 may be formed from a single elastic member 2106, or may be formed from a plurality of elastic members, such as Figure 21 2106, 2108, 2110 and 2110 are shown. The outer cuff elastic member 2104 can extend at least partially between the front edge 18 and the rear edge 20 of the absorbent article 10. The outer cuff elastic member 2104 can be joined to the web material forming the barrier leg cuff 32 at least in the crotch region 14 of the absorbent article. The outer cuff elastic member 2104 can be disposed between two surfaces of the web material forming the barrier leg cuff 32, as shown. Figure 21 As shown. Figure 22 As shown, the outer cuff elastic elements 2104 may be disposed between the web material forming the barrier leg cuffs 32 and a portion of the backsheet 28. In one form, the outer cuff elastic elements 2104 may be disposed between the web material forming the barrier leg cuffs 32 and the backsheet film. In another form, the outer cuff elastic elements 2104 may be disposed between the web material forming the barrier leg cuffs 32 and the outer cover material 40.
[0123] See also Figure 26 , illustrates an example cross-sectional view of a nonwoven material forming a barrier leg cuff 32. This cross-sectional view does not include elastic strands or films. The barrier leg cuff 32 may include, in order or not, a first spunbond nonwoven layer 2600, a second spunbond nonwoven layer 2602, a third meltblown nonwoven layer 2604, a fourth meltblown nonwoven layer 2606, a fifth meltblown nonwoven layer 2608, and a sixth spunbond nonwoven layer 2610. This may also be referred to as an SSMMMS nonwoven material, where S is a spunbond nonwoven layer and M is a meltblown nonwoven layer.
[0124] See also Figure 27 , illustrates another example cross-sectional view of a nonwoven material forming a barrier leg cuff 32. This cross-sectional view does not include elastic strands or films. The barrier leg cuff 32 may include, in order or not, a first spunbond nonwoven layer 2712, a second spunbond nonwoven layer 2714, a third meltblown nonwoven layer 2716, a fourth meltblown nonwoven layer 2718, and a fifth meltblown nonwoven layer 2720. This may also be referred to as an SSMMS nonwoven material, where S is a spunbond nonwoven layer and M is a meltblown nonwoven layer.
[0125] Biobased content of components
[0126] The components of the absorbent articles described herein may be at least partially composed of bio-based content, as described in U.S. Patent Application No. 2007 / 0219521 A1. For example, the superabsorbent polymer component may be bio-based via its derivation from bio-based acrylic acid. Bio-based acrylic acid and its production methods are described in U.S. Patent Application Publication No. 2007 / 0219521 and U.S. Patents No. 8,703,450, No. 9,630,901 and No. 9,822,197. Other components such as nonwovens and film components may contain bio-based polyolefin materials. Bio-based polyolefins are further discussed in U.S. Patent Application Publication Nos. 2011 / 0139657, 2011 / 0139658, 2011 / 0152812 and 2016 / 0206774 and U.S. Patent No. 9,169,366. Example bio-based polyolefins for use in the present disclosure include those known by the designation SHA7260. ™ 、SHE150 ™ or SGM9450F™ The polymers obtained were (all available from Braskem SA).
[0127] The absorbent article component may comprise a biobased content value of, for example, from about 10% to about 100%, from about 25% to about 100%, from about 40% to about 100%, from about 50% to about 100%, from about 75% to about 100%, or from about 90% to about 100%, as measured using ASTM D6866-10 Method B.
[0128] Recycling-friendly and bio-based absorbent products
[0129] The components of the absorbent articles described herein can be recycled for other uses, regardless of whether they are (at least partially) formed from recyclable materials. Examples of recyclable absorbent article materials are nonwovens, films, fluff pulp, and superabsorbent polymers. The recycling process can sterilize the absorbent articles using an autoclave, after which the absorbent articles can be shredded and separated into different by-product streams. Example by-product streams can include plastics, superabsorbent polymers, and cellulose fibers, such as pulp. These by-product streams can be used to produce fertilizers, manufacture plastic products, paper products, viscose, building materials, absorbent pads for pets or hospital beds, and / or other uses. More details about absorbent articles that facilitate recycling, designs for recycling-friendly diapers, and designs for recycling-friendly and bio-based component diapers are disclosed in U.S. Patent Application Publication No. 2019 / 0192723, published on June 27, 2019.
[0130] combination
[0131] 1. An absorbent article (10), comprising:
[0132] a liquid permeable topsheet (26);
[0133] a liquid-impermeable backsheet (28);
[0134] an absorbent core (30) disposed at least partially between the topsheet (26) and the backsheet (28); and
[0135] A pair of barrier leg cuffs (32), each barrier leg cuff (32) formed from a single web of material and comprising a reversed inner cuff (1300) comprising:
[0136] Inner folded edge (1301),
[0137] Folding back the folded edge (1302),
[0138] an inner elastic element (1303), and
[0139] a folded elastic element (1304);
[0140] wherein the inner elastic element (1303) is disposed adjacent to the inner folded edge (1301), and the return-folded elastic element (1304) is disposed adjacent to the return-folded edge (1302); and
[0141] wherein at least a portion of the folded-back inner cuff (1300) is configured to overlap the topsheet (26) when the absorbent article is in a flat, uncontracted configuration.
[0142] 2. The absorbent article (10) of paragraph 1, wherein the web material is folded laterally outward to form the inner fold edge (1301), and wherein the web material is folded laterally inward to form the turned-back fold edge (1302).
[0143] 3. The absorbent article (10) of any of paragraphs 1 or 2, wherein the inner elastic element (1303) comprises a first inner elastic member (1307).
[0144] 4. The absorbent article (10) of paragraph 3, wherein the inner elastic element (1303) comprises a second inner elastic member (1309).
[0145] 5. The absorbent article (10) of any of paragraphs 3 or 4, wherein the first inner elastic member (1307) and / or the second inner elastic member (1309) are elastic strands having a linear density between about 350 dtex and about 1200 dtex, between about 400 dtex and about 1150 dtex, or between about 500 dtex and about 1000 dtex.
[0146] 6. The absorbent article (10) of any of the preceding paragraphs, wherein the retracted elastic element (1304) comprises a first retracted elastic member (1313).
[0147] 7. The absorbent article (10) of paragraph 6, wherein the first retracted elastic member (1313) is an elastic strand having a linear density between about 350 dtex and about 1200 dtex, between about 400 dtex and about 1150 dtex, or between about 500 dtex and about 1000 dtex.
[0148] 8. An absorbent article (10) according to any of the preceding paragraphs, wherein the inner elastic element (1303) is configured to have a first contraction force, wherein the return elastic element (1304) is configured to have a second contraction force, and wherein the first contraction force is different from the second contraction force.
[0149] 9. The absorbent article (10) of paragraph 8, wherein the first contraction force is greater than the second contraction force.
[0150] 10. An absorbent article (10) according to any of the preceding paragraphs, wherein at least a portion of the folded-back inner cuff (1300) between the inner folded edge (1301) and the folded-back folded edge (1302) is joined to a portion of the web material disposed between the folded-back inner cuff (1300) and the top sheet (26).
[0151] 11. The absorbent article (10) of any of the preceding paragraphs, wherein each barrier leg cuff (32) further comprises an outer cuff (2100) comprising an outer cuff folded edge (2114), an outer cuff material end (2116), and an outer cuff elastic element (2104).
[0152] 12. The absorbent article (10) of paragraph 11, wherein the web of material is folded laterally inward to form the outer cuff folded edge (2114).
[0153] 13. The absorbent article (10) of paragraphs 11 or 12, wherein the outer cuff elastic element (2104) is positioned adjacent the outer cuff folded edge (2114).
[0154] 14. The absorbent article (10) of any of paragraphs 11 to 13, wherein the outer cuff elastic element (2104) comprises a plurality of elastic members.
[0155] 15. The absorbent article (10) of any of the preceding paragraphs, wherein the absorbent article (10) is a disposable insert (2500) configured to be engaged with a reusable outer cover (2502).
[0156] 16. The absorbent article (10) of any one of paragraphs 1 to 14, wherein the absorbent article (10) is a taped diaper comprising a secondary fastening system comprising a secondary fastening component (210) and a secondary receiving component (212).
[0157] 17. An absorbent article (10), comprising:
[0158] a chassis (52) comprising a liquid permeable topsheet (26), a liquid impermeable backsheet (28), and an absorbent core (30) at least partially disposed between the topsheet (26) and the backsheet (28); and
[0159] A pair of barrier leg cuffs (32), each barrier leg cuff (32) formed from a single web of material and comprising a proximal portion (1310) and an inner distal portion (1312) joined to the chassis (52), wherein the web of material is folded laterally outward to form a folded portion (1305) between the proximal portion (1310) and the inner distal portion (1312), thereby forming a folded inner cuff (1300), the folded inner cuff (1300) comprising an inner folded edge (1301), a folded folded edge (1302), an inner elastic element (1303) and a folded elastic element (1304).
[0160] 18. An absorbent article (10) according to paragraph 17, wherein a portion of the web material forming the inner cuff (1300) of the return and located between the inner fold edge (1301) and the return fold edge (1302) is joined to a portion of the web material located between the proximal portion (1310) of the barrier leg cuff and the return portion (1305).
[0161] 19. The absorbent article (10) of paragraphs 17 or 18, wherein at least a portion of the folded-back inner cuff (1300) is configured to overlap the topsheet (26) when the absorbent article is in a flat, uncontracted configuration.
[0162] 20. The absorbent article (10) of any one of paragraphs 16 to 19, wherein the web material is folded laterally outward to form the inner folded edge (1301) of the folded inner cuff (1300), and wherein the web material is folded laterally inward to form the folded edge (1302).
[0163] 21. The absorbent article (10) of any of paragraphs 16 to 20, wherein the inner elastic element (1303) comprises a first inner elastic member (1307).
[0164] 22. The absorbent article (10) of paragraph 21, wherein the inner elastic element (1303) comprises a second inner elastic member (1309).
[0165] 23. The absorbent article (10) of any of paragraphs 21 or 22, wherein the first inner elastic member (1307) and / or the second inner elastic member (1309) are elastic strands having a linear density between about 350 dtex and about 1200 dtex, between about 400 dtex and about 1150 dtex, or between about 500 dtex and about 1000 dtex.
[0166] 24. The absorbent article (10) of any of paragraphs 16 to 23, wherein the retracted elastic element (1304) comprises a first retracted elastic member (1313).
[0167] 25. The absorbent article (10) of paragraph 24, wherein the first retracted elastic member (1313) is an elastic strand having a linear density between about 350 dtex and about 1200 dtex, between about 400 dtex and about 1150 dtex, or between about 500 dtex and about 1000 dtex.
[0168] 26. The absorbent article (10) of any one of paragraphs 16 to 25, wherein the inner elastic element (1303) is configured to have a first contractile force, wherein the return elastic element (1304) is configured to have a second contractile force, and wherein the first contractile force is different from the second contractile force.
[0169] 27. The absorbent article (10) of paragraph 26, wherein the first contraction force is greater than the second contraction force.
[0170] 28. An absorbent article (10) according to any one of paragraphs 16 to 27, wherein at least a portion of the folded-back inner cuff (1300) located between the inner fold edge (1301) and the folded-back fold edge (1302) is joined to a portion of the web material arranged between the folded-back inner cuff (1300) and the proximal portion (1310) of the barrier leg cuff (32).
[0171] 29. The absorbent article (10) of any of paragraphs 16 to 28, wherein each barrier leg cuff (32) further comprises an outer cuff (2100) comprising an outer cuff folded edge (2114), an outer cuff material end (2116), and an outer cuff elastic element (2104).
[0172] 30. The absorbent article (10) of paragraph 29, wherein the web of material is folded laterally inward to form the outer cuff folded edge (2114).
[0173] 31. The absorbent article (10) of paragraphs 29 or 30, wherein the outer cuff elastic element (2104) is positioned adjacent the outer cuff folded edge (2114).
[0174] 32. The absorbent article (10) of any of paragraphs 29 to 31, wherein the outer cuff elastic element (2104) comprises a plurality of elastic members.
[0175] 33. The absorbent article (10) of any of paragraphs 16 to 32, wherein the absorbent article (10) is a disposable insert (2500) configured to be engaged with a reusable outer cover (2502).
[0176] 34. The absorbent article (10) of any one of paragraphs 16 to 32, wherein the absorbent article (10) is a taped diaper comprising a secondary fastening system comprising a secondary fastening component (210) and a secondary receiving component (212).
[0177] The dimensions and values disclosed herein should not be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."
[0178] Unless expressly excluded or otherwise limited, each document cited herein, including any cross-referenced or related patent or patent application and any patent application or patent to which this application claims priority or the benefit of, is hereby incorporated by reference in its entirety. The citation of any document is not an admission that it is prior art to any of the present inventions disclosed or claimed herein, or an admission that it, by itself or in combination with any one or more references, proposes, suggests, or discloses 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 a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.
[0179] Although the present disclosure has been described and illustrated with specific embodiments, it will be apparent to those skilled in the art that many other changes and modifications may be made without departing from the spirit and scope of the present disclosure. It is therefore intended that all such changes and modifications within the scope of the present disclosure be included in the appended claims.
Claims
1. An absorbent article (10), comprising: a liquid permeable topsheet (26); a liquid-impermeable backsheet (28); an absorbent core (30) disposed at least partially between the top sheet (26) and the back sheet (28); and A pair of barrier leg cuffs (32), each barrier leg cuff (32) formed from a single web of material and comprising a reversed inner cuff (1300) comprising: Inner folded edge (1301), Folding back the folded edge (1302), an inner elastic element (1303), and a folded elastic element (1304); wherein the inner elastic element (1303) is disposed adjacent to the inner folded edge (1301), and the folded-back elastic element (1304) is disposed adjacent to the folded-back folded edge (1302); wherein the inner elastic element (1303) is configured to have a first contraction force, wherein the return elastic element (1304) is configured to have a second contraction force, and wherein the first contraction force is different from the second contraction force; and wherein at least a portion of the folded-back inner cuff (1300) is configured to overlap the topsheet (26) when the absorbent article is in a flat, uncontracted configuration.
2. The absorbent article (10) according to claim 1, wherein the web material is folded laterally outward to form the inner folded edge (1301), and wherein the web material is folded laterally inward to form the turned-back folded edge (1302).
3. The absorbent article (10) according to any one of claims 1 or 2, wherein the inner elastic element (1303) comprises a first inner elastic member (1307).
4. The absorbent article (10) according to claim 3, wherein the inner elastic element (1303) comprises a second inner elastic member (1309).
5. The absorbent article (10) according to any one of claims 3 or 4, wherein the first inner elastic member (1307) and / or the second inner elastic member (1309) is an elastic strand having a linear density between about 350 dtex and about 1200 dtex, between about 400 dtex and about 1150 dtex, or between about 500 dtex and about 1000 dtex.
6. The absorbent article (10) according to any one of the preceding claims, wherein the retracted elastic element (1304) comprises a first retracted elastic member (1313).
7. The absorbent article (10) of claim 6, wherein the first retracted elastic member (1313) is an elastic strand having a linear density between about 350 dtex and about 1200 dtex, between about 400 dtex and about 1150 dtex, or between about 500 dtex and about 1000 dtex.
8. The absorbent article (10) of claim 1, wherein the first contraction force is greater than the second contraction force.
9. An absorbent article (10) according to any one of the preceding claims, wherein at least a portion of the folded-back inner cuff (1300) located between the inner folded edge (1301) and the folded-back folded edge (1302) is joined to a portion of the web material arranged between the folded-back inner cuff (1300) and the top sheet (26).
10. The absorbent article (10) according to any one of the preceding claims, wherein each barrier leg cuff (32) further comprises an outer cuff (2100) comprising an outer cuff folded edge (2114), an outer cuff material end (2116), and an outer cuff elastic element (2104).
11. The absorbent article (10) according to claim 10, wherein the web material is folded laterally inward to form the outer cuff folded edge (2114).
12. The absorbent article (10) according to claim 10 or 11, wherein the outer cuff elastic element (2104) is positioned adjacent the outer cuff folded edge (2114).
13. The absorbent article (10) according to any one of claims 10 to 12, wherein the outer cuff elastic element (2104) comprises a plurality of elastic members.
14. The absorbent article (10) of any one of the preceding claims, wherein the absorbent article (10) is a disposable insert (2500) configured to be engaged with a reusable outer cover (2502).
15. The absorbent article (10) according to any one of claims 1 to 13, wherein the absorbent article (10) is a taped diaper comprising a secondary fastening system comprising secondary fastening components (210) and secondary receiving components (212).
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