absorbent articles

Abstract

To provide an absorbent article capable of suppressing the occurrence of slip and the occurrence of a rough dry skin.SOLUTION: An absorbent article 10 comprises: a liquid-permeable top sheet 11 on a skin side; a liquid-impermeable back sheet on a non-skin side; and an absorber 13 between the top sheet 11 and the back sheet, the absorbent article 10 being usable while being attached to clothing of a wearer. The absorbent article 10 comprises: a fixing material which is provided on the non-skin-side face of the absorbent article 10 and can be attached onto the skin-side face of the clothing; and an anti-slip sheet 15 having an air-permeable sheet-like substrate 17 fixed to a skin-side face 10b of the absorbent article 10 and a slip resistance material 18 made of silicone rubber which is provided on the skin-side face of the substrate 17 and has slip resistance with respect to the skin of the wearer. The anti-slip sheet 15 is provided in first areas 19 on both of the sides of the absorbent article 10 in a longitudinal direction and / or second areas 20 on both of the sides of the absorbent article 10 in a width direction, in the skin-side face 10b of the absorbent article 10.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to absorbent articles. [Background technology]

[0002] BACKGROUND ART Some commercially available absorbent articles such as pads for disposable pants are provided with fastening materials such as hook-and-loop fasteners or adhesives to prevent slippage or creases during use.

[0003] For example, Patent Document 1 discloses an absorbent article configured by sandwiching an absorbent body between a liquid-impermeable back sheet and a liquid-permeable top sheet, in which the liquid-impermeable back sheet has a predetermined pattern of adhesive slip-prevention means formed with a hot-melt pressure-sensitive adhesive.

[0004] Patent Document 2 discloses an absorbent article in which an absorbent element is interposed between a bodily fluid permeable top sheet and a bodily fluid impermeable back sheet. On the use surfaces of the front and back ends of this absorbent article, adhesive sections made of a hot melt adhesive or a pressure-sensitive adhesive that has adhesive properties to human skin are exposed. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-10245 [Patent Document 2] Patent No. 4084009 Summary of the Invention [Problem to be solved by the invention]

[0006] Absorbent articles such as disposable pants pads are prone to slippage and sagging over time. When slippage and sagging occur, the absorbent article is unable to absorb body waste effectively, and the body waste is instead directly received by the disposable pants, causing discomfort and requiring replacement of the disposable pants, which can be cost-effective.

[0007] In the absorbent article described in Patent Document 1, a liquid-impermeable back sheet (back sheet) is provided with a slip-prevention means that can be adhered to the disposable pants or underwear used in combination, but if the disposable pants or underwear slips, the absorbent article will also slip.

[0008] Furthermore, the absorbent article described in Patent Document 2 has an adhesive portion that adheres to the skin on the surface of the absorbent article that is used, but if the adhesive portion continues to come into contact with the skin, it may impede breathability and cause skin rashes and roughness.

[0009] Therefore, an object of the present disclosure is to provide an absorbent article that can prevent slippage and rough skin. [Means for solving the problem]

[0010] In order to solve the above problems, a first aspect of the present invention is an absorbent article that can be worn and used on a wearer's clothing, comprising a liquid-permeable top sheet that is positioned on the skin side when worn, a liquid-impermeable back sheet that is positioned on the non-skin side, and an absorbent body that is positioned between the top sheet and the back sheet, and further comprising an anti-slip sheet that has an adhesive material that is provided on the non-skin side of the absorbent article and can be attached to the skin side of the clothing, a breathable sheet-like substrate that is fixed to the skin side of the absorbent article, and a silicone rubber anti-slip material that is provided on the skin side of the substrate and can prevent slipping against the wearer's skin, and the anti-slip sheet is provided on at least one of a first region on both sides of the longitudinal direction of the absorbent article and a second region on both sides of the width direction of the absorbent article on the skin side of the absorbent article.

[0011] A second aspect of the present invention is the absorbent article of the first aspect, wherein the base material of the slip prevention sheet has a gap on the skin side where the anti-slip material is not disposed.

[0012] A third aspect of the present invention is an absorbent article of the first aspect or the second aspect, wherein the first region is a region located at both ends of the absorbent body in the longitudinal direction, and the second region is a region located outside the absorbent body in the width direction.

[0013] A fourth aspect of the present invention is an absorbent article of the third aspect described above, wherein the first region is a region located within a range of 20 mm to 60 mm from both ends of the longitudinal direction of the absorbent body, and the widthwise length of the anti-slip sheet provided in the first region is 50% to 70% of the total widthwise length of the absorbent article.

[0014] A fifth aspect of the present invention is an absorbent article of the first aspect or the second aspect, wherein the second region is an area spaced apart on both sides of the longitudinal center line of the absorbent article, and the distance from the center line to the anti-slip sheets of the second regions on both sides of the longitudinal direction is 10% or more and 20% or less of the total length of the longitudinal direction of the absorbent article.

[0015] A sixth aspect of the present invention is an absorbent article of the first or second aspect, wherein the total area of ​​the anti-slip sheets is 10% or more and 30% or less of the area of ​​the skin side of the absorbent article.

[0016] A seventh aspect of the present invention is the absorbent article of the second aspect, wherein the area of ​​the gaps provided in the anti-slip sheet is 50% or more and 80% or less of the area of ​​the anti-slip sheet.

[0017] The eighth aspect of the present invention is an absorbent article of the second aspect, wherein the anti-slip material of the anti-slip sheet is arranged in parallel on the skin side of the substrate, and the length of the anti-slip material is 50% or less of the length of the long side of the anti-slip sheet.

[0018] A ninth aspect of the present invention is an absorbent article of the second aspect, wherein the anti-slip material of the anti-slip sheet is arranged in parallel on the skin side of the substrate, and the width of the anti-slip material is 30% or less of the length of the short side of the anti-slip sheet.

[0019] A tenth aspect of the present invention is an absorbent article according to the first or second aspect, wherein the substrate of the anti-slip sheet is a breathable film or nonwoven fabric, and the basis weight of the substrate is 20 gsm or more and 32 gsm or less. [Effects of the Invention]

[0020] According to the present disclosure, it is possible to prevent misalignment and rough skin. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a plan view of an absorbent article according to one embodiment of the present invention, viewed from the skin side. [Figure 2] FIG. 2 is a plan view of the absorbent article of FIG. 1, viewed from the non-skin side. [Figure 3] FIG. 3 is a cross-sectional view taken along the line III-III in FIG. [Figure 4] FIG. 2 is an enlarged explanatory diagram of a portion IV in FIG. 1. [Figure 5] FIG. 2 is an explanatory diagram showing the absorbent article when worn. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an absorbent article according to one embodiment of the present invention will be described with reference to the drawings.

[0023] In the description of this specification, "wearing an absorbent article" refers to the state in which the absorbent article is worn on the body, regardless of whether the absorbent article is worn before, during, or after absorbing bodily fluids. The "longitudinal direction" of each component of the absorbent article refers to the longitudinal direction of the absorbent article (the direction along the front and back of the wearer when worn), which is the direction indicated by arrow X in the figure. The "width direction" of each component of the absorbent article refers to the shorter direction perpendicular to the longitudinal direction (the direction along the left and right of the wearer when worn), which is the direction indicated by arrow Y in the figure. The "thickness direction" of each component of the absorbent article refers to the direction in which the components are stacked, which is the direction indicated by arrow Z in the figure. The "skin side" of each component of the absorbent article refers to the direction toward the wearer's body when the absorbent article is worn, and the "non-skin side" refers to the opposite direction from the skin side in the thickness direction. Body fluids refer to liquids excreted from the body to the outside, such as urine, blood, and water in loose stools. Examples of absorbent articles include absorbent napkins, light incontinence pads, urine absorption pads and other light incontinence products, sanitary napkins and other sanitary products, panty liners, etc., but are not limited to these and may also be other absorbent articles.

[0024] Fig. 1 is a plan view of an absorbent article according to one embodiment of the present invention, as viewed from the skin side. Fig. 2 is a plan view of the absorbent article of Fig. 1, as viewed from the non-skin side. Fig. 3 is a cross-sectional view taken along the arrows III-III in Fig. 1. Fig. 4 is an explanatory view showing an enlargement of part IV in Fig. 1. Fig. 4 is an explanatory view showing an enlargement of part IV in Fig. 1. Fig. 5 is an explanatory view showing the absorbent article being worn. Note that each of the drawings does not define the relative sizes of the components of the absorbent article, and the dimensions of each component can be selected appropriately from a wide range depending on the intended use of the absorbent article, etc.

[0025] [Absorbent articles] As shown in Figures 1 to 3, an absorbent article 10 according to one embodiment of the present invention is a pad-type absorbent article 10 that can be worn on a wearer's underwear, disposable diaper, or other garment A (see Figure 5). The absorbent article 10 comprises a liquid-permeable top sheet 11 that faces the wearer's skin when worn, a liquid-impermeable back sheet 12 that faces away from the wearer's skin when worn, an absorbent body 13 disposed between the top sheet 11 and the back sheet 12, an adhesive layer (fastening material) 14 provided on the away-from-skin side 10a of the absorbent article 10, and a slip-prevention sheet 15 fixed to the skin side 10b of the absorbent article 10. The absorbent article 10 of this embodiment also comprises three-dimensional gathers 16 in addition to the top sheet 11, back sheet 12, absorbent body 13, adhesive layer 14, and slip-prevention sheet 15. The absorbent article 10 may also include sheets other than the top sheet 11, the back sheet 12, the slippage prevention sheet 15, and the three-dimensional gathers 16 (for example, a cover sheet that wraps the absorbent body 13). The shape of the absorbent article 10 is not particularly limited, but is preferably a substantially rectangular or oval shape. The absorbent article 10 of this embodiment has a substantially rectangular shape.

[0026] The longitudinal length (maximum length; the same applies below) L1 of the absorbent article 10 is preferably at least 140 mm and not more than 300 mm. The widthwise length L2 of the absorbent article 10 is preferably at least 50 mm and not more than 100 mm. By adjusting the dimensions of the absorbent article 10 to fall within the above ranges, a pad-type absorbent article 10 suitable for light incontinence products, sanitary products such as sanitary napkins, panty liners, etc. can be obtained.

[0027] (Top sheet) The top sheet 11 is a liquid-permeable sheet-like substrate that allows bodily fluids to pass quickly toward the absorbent body 13 and diffuse the bodily fluids in the planar direction of the absorbent body 13. The top sheet 11 is preferably a substrate that is soft to the touch and does not irritate the skin so that it may come into direct contact with the wearer's skin. Examples of substrates include nonwoven fabrics such as air-through nonwoven fabrics, thermal-bonded nonwoven fabrics, and spun-bonded nonwoven fabrics; open-pore films such as open-pore polyethylene films; foamed films such as polyethylene foam and urethane foam; and multilayer sheets made by laminating two or more of these.

[0028] To improve liquid permeability, the surface of the top sheet 11 may be embossed or perforated. Any known method can be used for embossing or perforating the top sheet 11 without limitation. Furthermore, to reduce irritation to the skin, the top sheet 11 may contain lotion, antioxidants, anti-inflammatory ingredients, pH adjusters, antibacterial agents, moisturizers, etc.

[0029] (back seat) The backsheet 12 may be formed using a liquid-impermeable substrate that prevents the body fluids retained by the absorbent 13 from wetting the wearer's clothing. Examples of such substrates include resin films and composite sheets that are laminates of resin films and nonwoven fabrics. The nonwoven fabrics used in the composite sheets may be produced by any method, and examples include single-layer nonwoven fabrics such as spunbonded nonwoven fabrics and meltblown nonwoven fabrics, composite nonwoven fabrics such as spunbonded nonwoven fabric / meltblown nonwoven fabric laminates and spunbonded nonwoven fabric / meltblown nonwoven fabric / spunbonded nonwoven fabric laminates, and composite materials thereof. Examples of resin films include polyester, polyvinyl alcohol, polyethylene, polypropylene, and composite films of polyethylene and polypropylene. To prevent stuffiness during wear, the backsheet 12 is preferably breathable. To impart breathability to the backsheet 12, for example, a filler may be added to the resin film substrate or the backsheet 12 may be embossed. The filler may be calcium carbonate, and the method for blending it may be any known method without any restrictions.

[0030] (absorbent) Examples of the absorbent body 13 include a fluff absorbent body containing absorbent fibers and superabsorbent polymer (hereinafter sometimes referred to as "SAP"), and an SAP sheet in which SAP particles are fixed between liquid absorbent sheets.

[0031] The absorbent fibers are not particularly limited as long as they are generally used in absorbent articles such as sanitary napkins, disposable diapers, and urine absorption pads, and examples thereof include fluff pulp, cotton, rayon, acetate, tissue, absorbent paper, hydrophilic nonwoven fabric, etc. Examples of fluff pulp include wood pulp (e.g., bleached coniferous kraft pulp (N-BKP) such as southern pine or Douglas fir), synthetic fiber, resin fiber, non-wood pulp, etc. that has been defibrated into a cotton-like state. Examples of liquid absorbent sheets include sheets composed of one or more of the above absorbent fibers.

[0032] The superabsorbent polymer is not particularly limited as long as it can absorb body fluids and prevent backflow, and examples thereof include polyacrylates, polyaspartates, (starch-acrylic acid) graft copolymers, (acrylic acid-vinyl alcohol) copolymers, (isobutylene-maleic anhydride) copolymers, and saponified products thereof. Among these, from the viewpoint of absorption per weight, polyacrylates are preferred, alkali metal polyacrylates are more preferred, and sodium polyacrylate is even more preferred. The superabsorbent polymers can be used alone or in combination of two or more.

[0033] In the absorbent body 13, the absorbent fibers and SAP may be in the form of a mixture of absorbent fibers and SAP particles, or may be in the form of SAP particles fixed between absorbent fibers.

[0034] (Cover sheet) A cover sheet (not shown) may be provided to encase the absorbent body 13 in order to prevent leakage of SAP particles and stabilize the shape of the absorbent body 13. The base material of the cover sheet may be any hydrophilic material, such as tissue, absorbent paper, airlaid nonwoven fabric, or spunbond nonwoven fabric. Among these, spunbond nonwoven fabric is preferred. When multiple cover sheets are provided, the base materials of the multiple cover sheets may be the same or different. An ADL layer may be provided between the top sheet 11 and the cover sheet to quickly capture and distribute body fluids from the cover sheet side to the absorbent body 13 side.

[0035] (3D gathers) The absorbent article 10 may have left and right three-dimensional gathers 16 on the skin side 10b to prevent side leakage of bodily fluids excreted by the wearer. In this case, the three-dimensional gathers 16 are provided at both widthwise ends of the skin side 11a of the top sheet 11 so as to extend along the longitudinal direction of the absorbent article 10. The three-dimensional gathers 16 include a water-repellent and / or waterproof gathered sheet 16a and an elastic stretchable member 16b.

[0036] The gathered sheet 16a is a water-repellent and / or waterproof (liquid-impermeable) sheet, and is made of, for example, a nonwoven fabric. The nonwoven fabric may be any water-repellent and / or waterproof nonwoven fabric made of hydrophobic fibers, and examples thereof include spunbonded nonwoven fabrics, meltblown nonwoven fabrics, and composite nonwoven fabrics (SMS nonwoven fabrics) that are spunbonded nonwoven fabric / meltblown nonwoven fabric / spunbonded nonwoven fabric laminates. For example, one widthwise end (fixed end) of the gathered sheet 16a is fixed to the backsheet 12 near both widthwise ends of the skin-side surface 11a, a widthwise middle portion is fixed to the topsheet 11 near both widthwise ends of the skin-side surface 11a, and the other widthwise end is a free end that stands upright. The fixed position of the gathered sheet is not limited to that described in this embodiment; for example, one widthwise end (fixed end) may be fixed to the topsheet 11 near both widthwise ends of the skin-side surface 11a.

[0037] The elastic stretchable member 16b is disposed along the longitudinal direction near the free end (other end) of the gathered sheet 16a, imparting standing ability to the free end and enabling the free end of the gathered sheet 16a and its surrounding area to deform to fit the wearer's body shape. The elastic stretchable member 16b may be, for example, a thread-, string- or strip-shaped member made of natural rubber, synthetic rubber, polyurethane or the like.

[0038] (Fixing material) As shown in FIGS. 2 and 3 , an adhesive layer (fastening material) 14 is provided on the non-skin side 10a of the absorbent article 10 (in this embodiment, the non-skin side 12a of the backsheet 12) to attach the absorbent article 10 to the skin side A1 of clothing A (such as underwear or a disposable diaper). That is, the adhesive layer 14 is provided on the non-skin side 10a of the absorbent article 10 so that it can be attached to the skin side A1 of the clothing A. The adhesive used to form the adhesive layer 14 is not particularly limited, and examples include hot-melt adhesives such as polyacrylic ester, vinyl acetate-ethylene copolymer, vinyl acetate-acrylic copolymer, polymethyl methacrylate, polystyrene, styrene-acrylic copolymer, polyester resin, epoxy resin, and butadiene-styrene copolymer. These may be used alone or in a blend of two or more. The adhesive layer 14 can be formed by applying the above-mentioned adhesive to the non-skin side 10a of the absorbent article 10. When the absorbent article 10 is used, the absorbent article 10 is attached to the skin side A1 of the garment A via the adhesive layer 14 (see FIG. 5). A removable sheet (such as release paper) may be attached to the adhesive layer 14 of the absorbent article 10 before use to protect the adhesive layer 14. The fastening material is not limited to the adhesive layer 14 formed by applying an adhesive to the non-skin side 10a of the absorbent article 10, but may also be, for example, double-sided tape or hook-and-loop fastener attached to the non-skin side 10a of the absorbent article 10 (such as the non-skin side 12a of the backsheet 12).

[0039] (Slip prevention sheet) As shown in Figures 1, 3, and 4, the skin side 10b of the absorbent article 10 is provided with a plurality of anti-slip sheets 15 that prevent the absorbent article 10 from slipping against the wearer's skin (sometimes referred to as "body") B. Each of the plurality of anti-slip sheets 15 includes a breathable sheet-like substrate 17 that is fixed to the skin side 10b of the absorbent article 10, and an anti-slip material 18 made of silicone rubber that is provided on the skin side of the substrate 17 and can prevent slipping against the wearer's skin B. The anti-slip sheets 15 are provided on the skin side 10b of the absorbent article 10 and can prevent slipping against the wearer's skin B, and have the function of preventing the absorbent article 10 from slipping against the skin B.

[0040] (base material) The substrate 17 is a breathable sheet-like substrate, and is fixed to the skin side 10b of the absorbent article 10. For example, the substrate 17 is adhered and fixed to the skin side 10b of the absorbent article 10 by an adhesive such as a hot melt. The substrate 17 is preferably a breathable film or nonwoven fabric. From the viewpoint of preventing stuffiness and skin rashes, the film is preferably a 6000 (g / m 2 Examples of suitable nonwoven fabrics include PE porous films with a moisture permeability of at least 100 sq m (24 h), or plastic films with equivalent breathability. Examples of suitable nonwoven fabrics include spunbond nonwoven fabrics, meltblown nonwoven fabrics, and composite nonwoven fabrics (SMS nonwoven fabrics) that are spunbond nonwoven fabric / meltblown nonwoven fabric / spunbond nonwoven fabric laminates. The basis weight of the substrate 17 preferably has a lower limit of 20 gsm or more and an upper limit of 32 gsm or less. If the basis weight of the substrate 17 is less than 20 gsm, the substrate becomes too thin, making it difficult to ensure the adhesion of the anti-slip material 18 described below. Furthermore, if the basis weight of the substrate 17 is 32 gsm or more, the breathability deteriorates, which is undesirable from the viewpoint of preventing stuffiness and skin rashes.

[0041] (anti-slip material) The non-slip material 18 is made of silicone rubber that can prevent slipping against the skin B, and has the function of preventing the absorbent article 10 from slipping against the skin B. In other words, the non-slip material 18 does not need to have enough adhesive strength to adhere (fasten) the absorbent article 10 to the skin B, but only needs to have enough adhesive strength to prevent the absorbent article 10 from slipping against the skin B. Because the non-slip material 18 is made of silicone rubber, it has excellent gas permeability and water vapor permeability and is less likely to become stuffy.

[0042] The slip prevention sheets 15 are provided on the skin-facing side 10b of the absorbent article 10 in at least one of first regions 19 on both longitudinal sides of the absorbent article 10 and second regions 20 on both widthwise sides of the absorbent article 10. That is, at least two slip prevention sheets 15 are provided. In this embodiment, slip prevention sheets 15 are provided in both the first region 19 and the second region 20. Specifically, the multiple slip prevention sheets 15 in this embodiment include a pair of front and rear slip prevention sheets 15a, 15b provided in the first region 19 and two pairs of left and right slip prevention sheets 15c to 15f provided in the second region 20 (see FIG. 1). It is preferable that the slip prevention sheets 15a, 15b provided in the first region 19 are longer in the width direction of the absorbent article 10 than in the longitudinal direction. Furthermore, it is preferable that the slip prevention sheets 15c to 15f provided in the second region 20 are longer in the longitudinal direction than in the width direction of the absorbent article 10. In this embodiment, slip prevention sheets 15 are provided in both the first region 19 and the second region 20, but this is not limited to this and they may be provided in at least one of the first region 19 and the second region 20. In this embodiment, the first region 19 is a portion of the skin-side surface 11a of the top sheet 11 and the second region 20 is a portion of the skin-side surface 10b of the gathered sheet 16a, but this is not limited to this and the first region 19 and the second region 20 may be a portion of the skin-side surface 10b of the absorbent article 10.

[0043] (1st area) The first regions 19 on both longitudinal sides of the absorbent article 10 are preferably regions that overlap both longitudinal ends of the absorbent body 13 when the absorbent article 10 is viewed from the skin side. In other words, the first regions 19 on both longitudinal sides of the absorbent article 10 are preferably regions located at both longitudinal ends of the absorbent body 13. As a result, when the anti-slip sheet 15 is provided in the first region 19, the front and rear anti-slip sheets 15a, 15b are located at both longitudinal ends of the absorbent body 13, as shown in FIG. 1 . In this way, by setting the first regions 19 in regions located at both longitudinal ends of the absorbent body 13, it is possible to suppress slippage of the absorbent body 13 in a concentrated manner rather than the entire absorbent article 10, and therefore excrement such as bodily fluids can be reliably received by the absorbent body 13.

[0044] Furthermore, when the first region 19 is located at both longitudinal ends of the absorbent body 13, the first region 19 is preferably located within a range of 20 mm to 60 mm from both longitudinal ends 13a of the absorbent body 13 inward (toward the center) in the longitudinal direction. If the first region 19 is located more than 20 mm from both longitudinal ends 13a of the absorbent body 13, the operability of providing the anti-slip sheets 15a, 15b in the first region 19 may decrease, which may result in a decrease in the productivity of the absorbent article 10. If the first region 19 is located more than 60 mm from both longitudinal ends 13a of the absorbent body 13, the anti-slip sheets 15a, 15b in the first region 19 may be located closer to the longitudinal center of the absorbent body 13, which may result in a decrease in the water absorption performance of the absorbent body 13. In other words, by making the first region 19 an area within a range of 20 mm to 60 mm from both longitudinal ends 13a of the absorbent body 13, it is possible to suppress a decrease in operability and productivity when providing the anti-slip sheets 15a, 15b in the first region 19, and also to ensure the water absorption performance of the absorbent body 13.

[0045] When anti-slip sheets 15 are provided in the first region 19, the widthwise length L3 of anti-slip sheets 15a, 15b is preferably 50% or more and preferably 70% or less of the total widthwise length L2 of absorbent article 10. By setting the widthwise length L3 of anti-slip sheets 15a, 15b to 50% or more of the total widthwise length L2 of absorbent article 10, an anti-slip effect can be achieved. Furthermore, by setting the widthwise length L3 of anti-slip sheets 15a, 15b to 70% or less of the total widthwise length L2 of absorbent article 10, a decrease in productivity of absorbent article 10 can be suppressed, and good productivity can be maintained.

[0046] (Second area) The second regions 20 on both sides in the width direction of the absorbent article 10 are preferably regions located widthwise outward of the absorbent body 13. As a result, when anti-slip sheets 15 are provided in the second regions 20, the left and right anti-slip sheets 15 are located widthwise outward of the absorbent body 13. By setting the second regions 20 on both sides in the width direction of the absorbent article 10 widthwise outward of the absorbent body 13 in this way, it is possible to prevent a decrease in the absorption capacity of the absorbent body 13 due to the anti-slip sheets 15 provided in the second regions 20. Note that the second regions 20 of the absorbent article 10 are not limited to regions located widthwise outward of the absorbent body 13, and may be, for example, regions overlapping the absorbent body 13.

[0047] Furthermore, the second regions 20 on both sides in the width direction of the absorbent article 10 are preferably provided spaced apart from each other on both sides of a center line CL in the longitudinal direction of the absorbent article 10 (shown by a dashed line CL in Fig. 1). As a result, when the anti-slip sheets 15 are provided in the second regions 20, two pairs of anti-slip sheets 15c to 15f are provided on the left and right sides, as shown in Fig. 1. In this case, the distance L4 from the center line CL to the anti-slip sheets 15c to 15f of the second regions 20 on both sides in the longitudinal direction is preferably 10% or more and preferably 20% or less of the total length L1 in the longitudinal direction of the absorbent article 10. In this way, by spacing the anti-slip sheets 15c to 15f from the center line CL by 10% or more of the total length L1 in the longitudinal direction of the absorbent article 10, it is possible to ensure that the area in the longitudinal central portion, including the center line CL, in which the anti-slip sheets 15 are not provided is 20% or more of the total length L1 in the longitudinal direction of the absorbent article 10. This makes it easier for the three-dimensional gathers 16 in the longitudinal central portion of the absorbent article 10 to stand up when the absorbent article 10 receives bodily excrement or other waste, thereby allowing the three-dimensional gathers 16 to function effectively. Furthermore, by spacing the anti-slip sheets 15c to 15f from the center line CL by 20% or less of the total length L1 in the longitudinal direction of the absorbent article 10, it is possible to ensure that the area in the longitudinal central portion of the absorbent article 10 in which the anti-slip material 18 is not provided is 40% or less of the total length L1 in the longitudinal direction of the absorbent article 10. This makes it possible to prevent a decrease in the slippage prevention effect of the absorbent article 10 located in the crotch region of the wearer when worn. The second regions 20 of the absorbent article 10 are not limited to two pairs of regions on both sides in the width direction of the absorbent article 10, but may be one pair of regions on both sides in the width direction, or three or more pairs of regions on both sides in the width direction.

[0048] (void) It is preferable to provide voids 21, where no anti-slip material 18 is disposed, on the skin-facing side of the substrate 17 of the anti-slip sheet 15. The area of ​​the voids 21 provided on the skin-facing side of the substrate 17 of the anti-slip sheet 15 is preferably 50% or more and preferably 80% or less of the area of ​​the anti-slip sheet 15 (the area of ​​the skin-facing side of the substrate 17). The lower limit of the area of ​​the voids 21 is more preferably 60% or more of the area of ​​the anti-slip sheet 15, and the upper limit of the area of ​​the voids 21 is more preferably 70% or less of the area of ​​the anti-slip sheet 15. If the area of ​​the voids 21 is smaller than 50% of the area of ​​the anti-slip sheet 15, the absorbent article 10 will adhere too closely to the skin, increasing the risk of stuffiness and skin rash. If the area of ​​the voids 21 is larger than 80% of the area of ​​the anti-slip sheet 15, the anti-slip effect may not be fully achieved. In other words, by setting the area of ​​the gaps 21 provided in the anti-slip sheet 15 to be between 50% and 80% of the area of ​​the anti-slip sheet 15, it is possible to suppress stuffiness and skin irritation while also achieving a sufficient anti-slip effect.

[0049] The shape of the anti-slip material 18 provided on the skin side of the substrate 17 of the anti-slip sheet 15 is not particularly limited, and for example, multiple anti-slip materials 18 in the shape of wavy lines, dashed lines, straight lines, dots, etc. may be provided on the skin side of the substrate 17 in a manner that creates gaps 21.

[0050] For example, as shown in FIGS. 1 and 4, multiple linear anti-slip members 18 may be arranged in parallel on the skin-facing side of the substrate 17. That is, multiple anti-slip members 18 may be arranged in parallel on the skin-facing side of the substrate 17. In this embodiment, the multiple anti-slip members 18 provided on the anti-slip sheets 15a, 15b in the first region 19 are arranged in parallel in the width direction (Y direction) from one end to the other in the longitudinal direction (X direction) of the anti-slip sheets 15a, 15b, with an inclination relative to the longitudinal direction. Furthermore, the multiple anti-slip members 18 provided on the anti-slip sheets 15c to 15f in the second region 20 are arranged in parallel in the longitudinal direction (X direction) from one end to the other in the width direction (Y direction) of the anti-slip sheets 15c to 15f, with an inclination relative to the width direction. The slippage prevention sheets 15a and 15b in the first region 19 are elongated in the width direction of the absorbent article 10, and the slippage prevention sheets 15c to 15f in the second region 20 are elongated in the length direction of the absorbent article 10.

[0051] In this case, the length L5 of the multiple anti-slip members 18 is preferably 50% or less of the length L6 of the anti-slip sheet 15 in the long side direction. If the length L5 of the multiple anti-slip members 18 is longer than 50% of the length L6 of the anti-slip sheet 15 in the long side direction, the absorbent article 10 will adhere too closely to the skin, which may cause stuffiness or skin irritation. In other words, by setting the length L5 of the multiple anti-slip members 18 to 50% or less of the length L6 of the anti-slip sheet 15 in the long side direction, stuffiness and skin irritation can be suppressed. Note that the long side direction of the anti-slip sheet 15 is the width direction (Y direction) of the absorbent article 10 in the case of the anti-slip sheets 15a and 15b provided in the first region 19, and is the length direction (X direction) of the absorbent article 10 in the case of the anti-slip sheets 15c to 15f provided in the second region 20 (see FIG. 1).

[0052] Furthermore, it is preferable that the width L7 of the multiple anti-slip materials 18 is 30% or less of the length L8 in the short-side direction of the anti-slip sheet 15. If the width L7 of the multiple anti-slip materials 18 is longer than 30% of the length L8 in the short-side direction of the anti-slip sheet 15, the absorbent article 10 will adhere too closely to the skin, which may cause stuffiness or skin irritation. In other words, by setting the width L7 of the multiple anti-slip materials 18 to 30% or less of the length L8 in the short-side direction of the anti-slip sheet 15, stuffiness and skin irritation can be suppressed. Note that the short-side direction of the anti-slip sheet 15 is the longitudinal direction (X direction) of the absorbent article 10 in the case of the anti-slip sheets 15a and 15b provided in the first region 19, and is the width direction (Y direction) of the absorbent article 10 in the case of the anti-slip sheets 15c to 15f provided in the second region 20.

[0053] The total area of ​​anti-slip sheets 15 (in this embodiment, the total area of ​​anti-slip sheets 15a to 15f) is preferably 10% or more and 30% or less of the area of ​​skin-side surface 10b of absorbent article 10. By setting the total area of ​​anti-slip sheets 15 within the above range, damage to the skin caused by anti-slip sheets 15 can be reduced while still achieving an anti-slip effect.

[0054] (How to use) Next, an example of how to use the absorbent article 10 will be described. Fig. 5 is an explanatory diagram showing the absorbent article being worn. Fig. 5 is a schematic cross-sectional view of the absorbent article being worn, viewed from the side. Fig. 5 also shows a schematic illustration of clothing A (underwear, disposable diaper, etc.) and a wearer's body B, with the curved lower portion of body B being the crotch area, and the legs of the wearer not being shown.

[0055] As shown in Figure 5, when using the absorbent article 10, the user attaches the adhesive layer (fastening material) 14 on the non-skin side 10a of the absorbent article 10 (in this embodiment, the non-skin side 12a of the back sheet 12) to the skin side A1 of the clothing A. When the user wears the clothing A with the absorbent article 10 attached, the anti-slip material 18 of the anti-slip sheet 15 on the skin side 10b of the absorbent article 10 comes into contact with the wearer's skin B. The anti-slip material 18 of the anti-slip sheet 15 in contact with the wearer's skin B has an anti-slip effect on the absorbent article 10 against the wearer's skin B.

[0056] The absorbent article 10 configured as described above has an adhesive layer (fastening material) 14 on the non-skin side 10a of the absorbent article 10 that can be attached to the skin side A1 of the clothing A, so that the absorbent article 10 can be attached to the clothing A when in use. In addition, the skin side 10b of the absorbent article 10 has an anti-slip sheet 15 that has an anti-slip material 18 that can prevent slipping against the wearer's skin B, so that when the clothing A with the absorbent article 10 attached is worn, the anti-slip material 18 of the anti-slip sheet 15 on the skin side 10b of the absorbent article 10 comes into contact with the wearer's skin B. The anti-slip material 18 prevents the absorbent article 10 from slipping against the wearer's skin B, so that, for example, when the clothing A shifts during prolonged use, the absorbent article 10 can be prevented from shifting against the wearer's skin B.

[0057] The anti-slip sheet 15 is provided on at least one of the first regions 19 on both longitudinal sides and the second regions 20 on both widthwise sides of the skin-side surface 10b of the absorbent article 10. In other words, the anti-slip sheet 15 can be provided symmetrically in the longitudinal or widthwise direction on the skin-side surface 10b of the absorbent article 10, thereby stably preventing the absorbent article 10 from slipping against the wearer's skin B.

[0058] Furthermore, the base material 17 of the slip prevention sheet 15 is breathable, which can prevent stuffiness and skin rashes.

[0059] Furthermore, the anti-slip material 18 of the anti-slip sheet 15 is made of silicone rubber, which has excellent gas and water vapor permeability, ensuring breathability and preventing stuffiness and skin irritation. Furthermore, since the anti-slip material 18 prevents the absorbent article 10 from slipping relative to the skin B and does not adhere (fasten) the absorbent article 10 to the skin B, the anti-slip sheet 15 may come into contact with or move away from the skin B depending on the wearer's movements and posture. In this way, a gap is created between the skin B and the anti-slip sheet 15 depending on the wearer's movements and posture, ensuring breathability and preventing stuffiness and skin irritation.

[0060] Therefore, according to this embodiment, it is possible to prevent the absorbent article 10 from shifting and causing rough skin.

[0061] Furthermore, by providing gaps 21 on the skin side of the base material 17 of the slip-preventing sheet 15 where no anti-slip material 18 is placed, the breathability of the slip-preventing sheet 15 can be further improved, which can prevent stuffiness and skin rashes and the occurrence of rough skin.

[0062] The manner (including shape and dimensions) of providing the anti-slip material 18 on the skin-side surface of the substrate 17 of the anti-slip sheet 15 is not limited to the above. For example, in this embodiment, the skin-side surface of the substrate 17 of the anti-slip sheet 15 is provided with a gap 21 where the anti-slip material 18 is not disposed. However, the anti-slip material 18 may be provided over the entire skin-side surface of the substrate 17 without providing the gap 21. Even in this case, the substrate 17 is breathable, ensuring breathability and preventing stuffiness and skin irritation. Furthermore, the anti-slip material 18 is made of silicone rubber, which has excellent gas and water vapor permeability and ensures breathability, preventing stuffiness and skin irritation. Furthermore, as described above, depending on the wearer's movement and posture, a gap may be formed between the skin B and the anti-slip sheet 15, ensuring breathability and preventing stuffiness and skin irritation.

[0063] Although the present invention has been described above based on the above embodiment, the present invention is not limited to the content of the above embodiment, and can be modified as appropriate without departing from the scope of the present invention. In other words, all other embodiments, examples, operational techniques, etc. made by those skilled in the art based on this embodiment are naturally included in the scope of the present invention. [Explanation of symbols]

[0064] 10: Absorbent articles 10a: Non-skin side of absorbent article 10b: Skin side of absorbent article 11: Top sheet 12: Back seat 13: Absorbent 14: Adhesive layer (adhesive material) 15: Anti-slip sheet 17: Base material 18: Anti-slip material 19:First area 20:Second area 21:Void A: Clothes A1: Skin side of clothing B: Wearer's skin

Claims

1. An absorbent article that can be worn on a wearer's clothes and used, comprising: a liquid-permeable top sheet that is positioned on the skin side when worn; a liquid-impermeable back sheet that is positioned on the non-skin side; and an absorbent body that is placed between the top sheet and the back sheet, a fastening material provided on a non-skin side of the absorbent article and attachable to a skin side of the clothing; a slip prevention sheet including a breathable sheet-like substrate fixed to the skin side of the absorbent article, and a silicone rubber non-slip material provided on the skin side of the substrate to prevent slipping against the wearer's skin, The slip prevention sheet is provided on the skin side of the absorbent article in at least one of first regions on both sides in the longitudinal direction of the absorbent article and second regions on both sides in the width direction of the absorbent article, A gap in which the anti-slip material is not disposed is provided on the skin side of the base material of the anti-slip sheet, The area of ​​the gap provided in the anti-slip sheet is 50% or more and 80% or less of the area of ​​the anti-slip sheet. An absorbent article characterized by:

2. the first region is a region located at both ends of the absorbent body in the longitudinal direction, The second region is a region located on the outer side of the absorbent body in the width direction.

2. The absorbent article according to claim 1.

3. the first region is a region located within a range of 20 mm to 60 mm from both ends of the absorbent body in the longitudinal direction, The length in the width direction of the anti-slip sheet provided in the first region is 50% or more and 70% or less of the entire length in the width direction of the absorbent article.

3. The absorbent article according to claim 2.

4. the second region is a region provided on both sides of a center line in the longitudinal direction of the absorbent article, the second region being spaced apart from the center line, The distance from the center line to the anti-slip sheets in the second regions on both sides in the longitudinal direction is 10% or more and 20% or less of the entire length of the absorbent article in the longitudinal direction.

3. The absorbent article according to claim 1 or claim 2.

5. The total area of ​​the slippage prevention sheets is 10% or more and 30% or less of the area of ​​the skin side of the absorbent article.

3. The absorbent article according to claim 1 or claim 2.

6. The anti-slip material of the anti-slip sheet is provided in parallel on the skin side of the base material, The length of the anti-slip material is 50% or less of the length of the anti-slip sheet in the long side direction.

2. The absorbent article according to claim 1.

7. The anti-slip material of the anti-slip sheet is provided in parallel on the skin side of the base material, The width of the anti-slip material is 30% or less of the length of the short side of the anti-slip sheet.

2. The absorbent article according to claim 1.

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