Supplementary absorbent articles

Abstract

To provide an auxiliary absorbent article capable of being produced at a low cost and properly preventing leakage of loose passage.SOLUTION: There is provided an auxiliary absorbent article 40, which is fitted to an absorbent article 50, having a length of 450 mm or greater and 650 mm or smaller and a width of 150 mm or greater and 230 mm or smaller. The auxiliary absorbent article comprises: a first layer 10; a second layer 20 which has a first folding part 22 formed by covering the first layer 10 over a length direction and folding and fixing an end part so that a part of the first layer 10 on a skin side surface becomes an opening OP1; and a third layer 30 which has a second folding part 33 formed by covering the second layer 20 over the length direction and folding and fixing an end part so that a part of the first layer 10 on the skin side surface becomes an opening OP2. A total sum B of a width of the first folding part 22 is greater than a total sum C of a width of the second folding part 33.SELECTED DRAWING: Figure 3

Description

[Technical Field]

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

[0002] A known outer absorbent article has an absorbent member arranged on the skin side of an exterior body, the absorbent member comprising a top sheet, a back sheet, and an absorbent body held between the top sheet and the back sheet. The absorbent article absorbs and retains urine and loose stools using this absorbent member, and various proposals have been made to prevent loose stools from leaking from the absorbent article.

[0003] Patent document 1 describes an absorbent article in which through holes are formed in the thickness direction from the top sheet to the absorbent body, and a diffusion layer made of nonwoven fabric or foam and having an uneven structure on the skin-contacting surface is provided between the absorbent body and the back sheet, with the diffusion layer forming the bottom of the through holes and the bottom being exposed on the skin-contacting surface side.

[0004] Patent Document 2 describes a pad-type disposable diaper that has three-dimensional gathers that protrude from both sides of the surface to the front side, and has a cup portion that is recessed in a cup shape when viewed from the front side, in a portion that extends laterally from the protruding part of the three-dimensional gathers, at least in the area behind the front end of the crotch area.

[0005] Patent document 3 describes an absorbent article that further includes a feces receiving lower sheet and a feces receiving sheet on the upper surface of the top sheet, in that order from the top sheet side, and in which the soft feces permeation rate of the feces receiving lower sheet is higher than the soft feces permeation rate of the feces receiving sheet.

[0006] Patent document 4 describes an absorbent article in which a feces pocket for storing and holding excrement is provided in the buttocks contact area, the opening of the feces pocket is covered with a mesh sheet, and the mesh sheet has a surface treatment applied to the middle area including at least the urination area by applying a hydrophilic agent. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent No. 2016-112232 [Patent Document 2] Patent No. 2014-45980 [Patent Document 3] Patent No. 2009-22460 [Patent Document 4] Patent No. 2007-90056 Summary of the Invention [Problem to be solved by the invention]

[0008] The absorbent articles and pad-type disposable diapers described in Patent Documents 1 to 4 above are intended to prevent the leakage of loose stools, but because they are intended to prevent the leakage of loose stools using absorbent articles, they require complex processing and are relatively expensive.

[0009] An object of the present invention is to provide a low-cost auxiliary absorbent article that can be attached to an absorbent article and that can adequately prevent leakage of loose stools. [Means for solving the problem]

[0010] As a result of extensive research to solve the above problems, the inventors discovered that, in an auxiliary absorbent article attached to an absorbent article, by adjusting the dimensions of the auxiliary absorbent article to fall within a predetermined range, providing a first folded portion of the second layer and a second folded portion of the third layer, and adjusting the relationship between the sum of the widths of the first folded portion of the second layer and the sum of the widths of the second folded portion of the third layer to fall within a predetermined range, it is possible to obtain a low-cost auxiliary absorbent article that can adequately prevent leakage of loose stools, and thus completed the present invention. The present invention relates to the following auxiliary absorbent articles.

[0011] (1) An auxiliary absorbent article to be attached to an absorbent article, the auxiliary absorbent article having a length of 450 mm or more and 650 mm or less and a width of 150 mm or more and 230 mm or less, comprising: a first layer; a second layer that covers the first layer along its length and has a first folded-back portion at its end that is folded back and fixed so as to leave a portion of the skin-facing surface of the first layer open; and a third layer that covers the second layer along its length and has a second folded-back portion at its end that is folded back and fixed so as to leave a portion of the skin-facing surface of the first layer open, wherein the total width of the first folded-back portion is greater than the total width of the second folded-back portion.

[0012] (2) An auxiliary absorbent article of (1) above, wherein the opening is provided on the skin-side surface of the central portion of the first layer in the width direction, and the first folded portion and the second folded portion are provided on both sides of the opening in the width direction.

[0013] (3) An auxiliary absorbent article according to (1) or (2) above, wherein the ratio of the width of the first layer, the sum of the widths of the first folded-back portion, and the sum of the widths of the second folded-back portion is 1:0.6-0.7:0.3-0.4.

[0014] (4) The first layer includes an air-through nonwoven fabric, and the basis weight of the air-through nonwoven fabric is 30 g / m 2 More than 60g / m 2 The thickness of the fibers constituting the air-through nonwoven fabric is 4.0 dtex or more and 6.0 dtex or less, and the second layer and the third layer are each a composite nonwoven fabric containing a pulp fiber web in a spunbond nonwoven fabric, and the basis weight of the pulp fiber web contained therein is 35 g / m 2 The auxiliary absorbent article of (1) above.

[0015] (5) An auxiliary absorbent article according to (1) above, in which a slit penetrating the second layer is provided in the central portion in the width direction and the central portion in the length direction of the second layer covering the non-skin side surface of the first layer.

[0016] (6) An auxiliary absorbent article according to (5) above, wherein the length of the slit is 50% or more and 70% or less of the length of the auxiliary absorbent article, and the width of the slit is 10% or more and 20% or less of the width of the auxiliary absorbent article. [Effects of the Invention]

[0017] According to the present invention, a low-cost auxiliary absorbent article is provided that can adequately prevent leakage of loose stool. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a plan view schematically showing a configuration in which an auxiliary absorbent article according to the present embodiment is arranged in a tape-fastened absorbent article. [Figure 2] 2 is a schematic cross-sectional view taken along the X1-X1 cutting line shown in FIG. 1. [Figure 3] 1A is a schematic plan view of an auxiliary absorbent article according to the present embodiment, and FIG. 1B is a schematic cross-sectional view taken along the X2-X2 cutting line shown in FIG. [Figure 4] FIG. 4 is an enlarged cross-sectional view of FIG. 3(b) that schematically illustrates the auxiliary absorbent article according to the present embodiment. [Figure 5] FIG. 3(b) is an enlarged cross-sectional view of the auxiliary absorbent article according to the present embodiment, showing a state in which side leakage of loose stool is prevented. [Figure 6] 1A is a plan view of an auxiliary absorbent article according to a modification of the present embodiment, and FIG. 1B is a cross-sectional view taken along the X3-X3 line in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0019] In this specification, "wearing an absorbent article" refers to the state in which the absorbent article is worn on the body, regardless of whether bodily fluids have been absorbed or not. In an absorbent article, the length direction is the direction indicated by Y in the figure that extends from the front to the back of the body via the wearer's crotch when the absorbent article is worn on the body; the width direction is the direction indicated by X in the figure that is perpendicular to the length direction; and the thickness direction is the direction indicated by Z in the figure in which each component or element is stacked. The skin-facing surface is the surface that contacts or faces the wearer's skin when the absorbent article is worn, and the non-skin-facing surface is the surface that contacts or faces the wearer's clothing. Body fluids refer to liquids excreted from the body to the outside, such as urine, blood, and water in loose stools.

[0020] <Tape-fastened absorbent article> Hereinafter, the tape-fastened absorbent article 50 and the auxiliary absorbent article 40 of this embodiment will be described with reference to the drawings. Note that these drawings do not stipulate the shape, dimensions, size relationship, etc. of each constituent absorbent article component in the tape-fastened absorbent article 50 and the auxiliary absorbent article 40.

[0021] Fig. 1 is a plan view showing a configuration in which an auxiliary absorbent article according to this embodiment is arranged in a tape-fastened absorbent article, Fig. 2 is a schematic cross-sectional view taken along the X1-X1 cutting line shown in Fig. 1. As shown in Fig. 1, the absorbent article 50 of this embodiment is a tape-fastened absorbent article 50, which is a tape-fastened absorbent article (outer) 50 comprising an exterior body 91 in which a front body section 60, which primarily contacts the wearer's lower abdominal region, a crotch section 70, which primarily contacts the wearer's crotch region, and a back body section 80, which primarily contacts the wearer's buttocks, are connected in this order along the lengthwise direction. An absorbent member 90 is disposed on the skin-facing surface of the exterior body 91, spanning the front body section 60 and the rear body section 80, with the crotch section 70 at the center, so as to cover the wearer's crotch region from the front and rear of the body. Furthermore, an auxiliary absorbent article (inner pad) 40, which will be described later and which has a generally rectangular shape elongated in the lengthwise direction in a plan view, is disposed on the skin-facing surface. A pair of three-dimensional gathers 100, which extend lengthwise from the front body section 60 through the crotch section 70 to the back body section 80, are disposed on both widthwise sides of the skin-facing surface of the exterior body 91. Furthermore, the tape-fastened absorbent article 50 of this embodiment has a length of 700 mm or more and 1100 mm or less, and a maximum width of 700 mm or more and 1500 mm or less. These dimensions correspond to the product sizes S, M, and L of the tape-fastened absorbent article 50. The absorbent article 50 is not limited to the tape-fastened absorbent article 50, and may be a pants-type absorbent article. In Fig. 1, the position where the three-dimensional gathers 100 are arranged is indicated by the reference symbol 100.

[0022] The tape-fastened absorbent article 50 also includes a pair of side flaps 62 extending outward from both widthwise ends of the back body 80, a pair of side panels 63 fixed to widthwise intermediate portions of the side flaps 62 and extending outward in both widthwise directions, a pair of fastening tapes 64 arranged in the bifurcated tabs of the side panels 63, and a target tape (not shown) provided in a strip shape near the widthwise center near the longitudinal ends of the front body 60, to which the fastening tapes 64 are fixed when the tape-fastened absorbent article 50 is worn. In this embodiment, the outer shape of the tape-fastened absorbent article 50 is formed by an integrated exterior body 91 extending from the front body 60 through the crotch region 70 to the back body 80, but the present invention is not limited to this, and the front body 60 and the back body 80 may be separate bodies that are connected together by an absorbent member 90 to form an integrated tape-fastened absorbent article 50. In addition, the tape-fastened absorbent article 50 of this embodiment may be provided with end seal portions (not shown) at both longitudinal ends of a pair of three-dimensional gathers 100 on both sides of the width direction to improve the fixation of the three-dimensional gathers 100 to the absorbent member 90.

[0023] The widthwise dimension of the front body 60 is, for example, in the range of 380 mm to 790 mm, the widthwise dimension (maximum width dimension) of the back body 80 is, for example, in the range of 300 mm to 500 mm, and the widthwise dimension of the crotch region 70 is, for example, in the range of 250 mm to 320 mm, or in the range of 270 mm to 310 mm. By adjusting the dimensions of the front body 60, crotch region 70, and back body 80 to fall within the above-mentioned ranges, a tape-fastened absorbent article 50 can be obtained that allows the absorbent member 90 and auxiliary absorbent article 40 to be positioned appropriately.

[0024] Below, each of the components such as the front body 60, crotch region 70, back body 80, side flaps 62, target tape, and absorbent member 90 will be described in more detail using Figs.

[0025] <Front, crotch, and back> The front body 60 and the back body 80 are formed from an exterior body material including a nonwoven fabric at the front end (ventral end) and rear end (dorsal end) of the absorbent member 90, respectively. The crotch region 70 is interposed between the front body 60 and the back body 80, and is also formed from an exterior body material including a nonwoven fabric, like these.

[0026] The front body 60, crotch region 70, and back body 80 each include an exterior nonwoven fabric sheet (not shown) positioned away from the wearer's skin, and a backsheet film (not shown) positioned close to the wearer's skin. The exterior body material consisting of the exterior nonwoven fabric sheet and backsheet film is folded in half at the crotch region 70 along the longitudinal centerline of the absorbent member 90 and auxiliary absorbent article 40 so that the absorbent member 90 and auxiliary absorbent article 40 are on the inside (close to the skin), and the opposite side edges of the lower abdomen and buttocks are connected. As a result, the exterior nonwoven fabric sheet forms a stretchable waist opening and a pair of leg openings, and the tape-fastened absorbent article 50 as a whole is configured like removable pants. When the tape-fastened absorbent article 50 is worn, the front body 60 covers the wearer's waist on the stomach side, and the back body 80 covers the waist on the back side.

[0027] A backsheet film, for example, is laminated on the inside of the exterior nonwoven fabric sheet to increase the strength of the front body 60, the back body 80, and the crotch region 70. The exterior nonwoven fabric sheet can be made of a nonwoven fabric containing fibers made of a thermoplastic resin such as polypropylene, polyester, or polyethylene. Specific examples of such nonwoven fabrics include thermal bonded nonwoven fabrics, air-through nonwoven fabrics, and spunbonded nonwoven fabrics. Of these, air-through nonwoven fabrics and spunbonded nonwoven fabrics are preferred. The basis weight of the nonwoven fabric is, for example, 15 g / m 2 More than 40g / m 2 The backsheet film may be any resin film, for example, a polyethylene film. The basis weight of the backsheet film is, for example, 10 g / m 2 More than 40g / m 2 The following is the result.

[0028] <Side flaps and target tape> The tape-fastened absorbent article 50 of this embodiment has a pair of side flaps 62 formed on both widthwise ends of the back sheet film in the lower abdominal and buttocks regions, a side panel 63 provided at the widthwise end on the free end side, which is the outer widthwise end, of each side flap 62 in the back body 80, and a forked fastening tape 64 provided at the widthwise end on the free end side, which is the outer widthwise end of the side panel 63.

[0029] The tape-fastened absorbent article 50 also includes an embodiment that does not have the side flaps 62, side panels 63, and fastening tapes 64. The side panels 63 and fastening tapes 64 may be formed from separate members, or may be integrally formed. In this embodiment, the two fastening tapes 64 on one side panel 63 may be spaced apart in the length direction of the tape-fastened absorbent article 50. The fastening tapes 64 may have fastening means on their skin-facing surface, which is made of hook members that form a hook-and-loop fastener for fastening the lower abdominal portion and the back-side portion, and each fastening tape 64 may have a bifurcated tab at the tip of its outer edge in the width direction. The side panels 63 may have perforations 66 that allow them to be separated. Meanwhile, a target tape made of a loop member that forms a hook-and-loop fastener may be provided on the garment-facing surface of the lower abdominal portion.

[0030] When a wearer puts on the tape-fastened absorbent article 50, each fastening tape 64 is fixed to a target tape made of a loop member. Without being limited to this, the tape-fastened absorbent article 50 may be formed by connecting the front body section 60 and the back body section 80 at their widthwise ends at the waist to form an integrated pants-like tape-fastened absorbent article 50. Furthermore, perforations 66 may be provided on the side panels 63 at or near the longitudinal center thereof, allowing the side panels 63 to be manually cut and separated. This allows the tab section to be separated lengthwise from the perforations 66, allowing for a wider range of engagement positions to be freely selected. A tension that appropriately fits the tape-fastened absorbent article 50 to the wearer's body can be generated when worn, depending on the wearer's body shape.

[0031] The base material of the side flaps 62 may be a nonwoven fabric made of polyethylene, polypropylene, polystyrene, or the like, and these base materials may be used alone or in combination. The base materials of the side panels 63 and fastening tape 64 may be a resin film or nonwoven fabric made of polyethylene, polypropylene, polystyrene, or the like, and these base materials may be used alone or in combination. The hook member refers to a hook-shaped protrusion among the components constituting the hook fastener, and the loop member refers to a densely raised loop-shaped member that pairs with the hook member. The hook fastener is composed of a pair of hook members and loop members. The tape-fastened absorbent article 50 can be worn, for example, by placing the rear body section 80 against the wearer's buttocks and back, bringing the front body section 60 toward the wearer's abdomen, and fastening the fastening tape 64 to the target tape. The perforations 66 may be provided by equally spaced slits approximately in the center of the length of the side panels 63.

[0032] <3D gathers> The three-dimensional gathers 100 are fixed to the skin-side surface of the absorbent member 90 near both widthwise ends of the absorbent member 90 along the length of the absorbent member 90 in order to prevent, for example, lateral leakage of bodily fluids excreted by the wearer of the tape-fastened absorbent article 50. The three-dimensional gathers 100 include an elastic stretchable member 100a and a water-repellent and / or waterproof sheet member 100b.

[0033] <End seal part> End seal portions can be provided near the longitudinal ends of the skin-side surface of the tape-fastened absorbent article 50, more specifically at each end (four corners) of the pair of three-dimensional gathers 100. The end seal portions, for example, fix the three-dimensional gathers 100 to the skin-side surfaces of the absorbent member 90. The end seal portions are made of, for example, a hot melt adhesive. Examples of the shape of the end seal portions in a plan view include a square (rectangle), circle, triangle, hexagon, etc.

[0034] <Absorption material> The absorbent member 90 includes a top sheet 94, a back sheet 92, and an absorber 93 held between the top sheet 94 and the back sheet 92. The absorbent member 90 is arranged on the skin-facing surface of the exterior body 91 of the tape-fastened absorbent article 50, and is arranged across the front body 60 and the back body 80, with the crotch region 70 at the center, so as to cover the wearer's crotch region from the front and back of the body.

[0035] <Top sheet> The top sheet 94 is a liquid-permeable sheet-like substrate that allows bodily fluids to pass quickly toward the absorbent body. Because the top sheet 94 may come into contact with the wearer's skin, a substrate that is soft to the touch and does not irritate the skin is preferred. Examples of such substrates include hydrophilic sheets, composite nonwoven fabrics that are laminates of the same or different hydrophilic sheets, apertured films such as apertured polyethylene films, and foamed films such as polyethylene foam and urethane foam. Examples of hydrophilic sheets include air-through nonwoven fabrics, thermal-bonded nonwoven fabrics, spunlace nonwoven fabrics, and spunbonded nonwoven fabrics made from synthetic fibers made of synthetic resins such as polypropylene and polyethylene, recycled fibers such as rayon, and natural fibers such as cotton.

[0036] The surface of the top sheet 94 may be embossed or perforated to improve liquid permeability. The top sheet 94 may contain one or more of lotions, antioxidants, anti-inflammatory ingredients, pH adjusters, antibacterial agents, moisturizers, etc. to reduce irritation to the skin. The basis weight of the top sheet 94 is set to, for example, 15 g / m² from the viewpoints of strength, processability, and liquid return. 2 More than 40g / m 2 The shape of the top sheet 94 is not particularly limited, and may be any shape that covers part or all of the absorbent body, as required to guide bodily fluids to the absorbent body without leakage.

[0037] <Absorbent> The absorbent body 93 is disposed between the top sheet 94 located on the skin side and the back sheet 92 located on the non-skin side, and absorbs and retains bodily fluids that have permeated the top sheet 94. The absorbent body 93 of this embodiment is supported mainly on the skin side surface of the crotch region 70 of the exterior body 91, and extends to the skin side surface of the back body 80, and may also extend to the skin side surface of the front body 60. In this embodiment, the region of the absorbent body 93 extending into the back body 80 has a maximum width of 300 mm or more and 600 mm or less, a length in the longitudinal direction of 180 mm or more and 375 mm or less, and an area of ​​380 cm 2 More than 1000cm 2 The following is the result.

[0038] The absorbent body 93 has a lengthwise dimension (maximum length) of, for example, 100 mm to 800 mm, 150 mm to 500 mm, or 270 mm to 500 mm. The widthwise dimension (maximum width) of the absorbent body 93 is, for example, 50 mm to 500 mm, 60 mm to 400 mm, or 70 mm to 105 mm. When the absorbent body 93 has an hourglass-shaped planar shape, the lengthwise dimension is 180 mm to 800 mm, the widthwise dimensions of the ventral and dorsal portions that contact the wearer's abdomen and back, respectively, are both 60 mm to 400 mm, and the widthwise dimension of the crotch portion that contacts the wearer's crotch is 90 mm to 250 mm. The absorbent body 93 may be embossed entirely or partially. Examples of the shape of the absorbent body 93 in a plan view include an hourglass shape, an I-shape, a rectangle, a rounded square with rounded corners, an oval, etc. The absorbent body 93 may be a laminate of an upper-layer absorbent body arranged in the upper layer (skin side) and a lower-layer absorbent body arranged in the lower layer (non-skin side).

[0039] The absorbent body 93 contains, for example, absorbent fibers and superabsorbent polymers (hereinafter also referred to as "SAP") as absorbent base materials.

[0040] <Absorbent fiber> The absorbent fiber is not particularly limited as long as it is one generally used in absorbent articles such as sanitary napkins, disposable diapers, and urine absorption pads, and examples thereof include fluff pulp (hereinafter simply referred to as "fluff"), cotton, rayon, acetate, tissue, absorbent paper, hydrophilic nonwoven fabric, etc. Among these, fluff pulp is preferred from the viewpoint of absorbency. Examples of fluff pulp include wood pulp (for example, bleached coniferous kraft pulp (N-BKP) such as southern pine or Douglas fir), synthetic fiber, resin fiber, cotton-like defibrated material such as non-wood pulp, etc. When fluff pulp is used as the absorbent fiber in the absorbent body, the basis weight of the absorbent fiber is, for example, 100 g / m 2 More than 800g / m 2 The following range or 325g / m 2 More than 615g / m 2 This allows the fabric to absorb more body fluids without compromising the feel against the skin.

[0041] <Superabsorbent polymer> 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.

[0042] The superabsorbent polymer is used in the form of particles, fibers, etc., but is preferably used in the form of particles from the viewpoint of ease of handling, etc. In this case, by avoiding the use of a finely powdered superabsorbent polymer that has poor flowability as a powder and using a superabsorbent polymer with a median particle size, basic absorption performance can be improved and the rough feel caused by the hardness of the absorbent body 93 can be reduced. The median particle size of the superabsorbent polymer is, for example, in the range of 50 μm to 600 μm or in the range of 100 μm to 500 μm.

[0043] The basis weight of the SAP in the absorbent body 93 is, for example, 60 g / m 2 More than 450g / m 2 The following range or 245g / m 2 More than 445g / m 2 The SAP basis weight is within the following range. By setting the basis weight of the SAP within the aforementioned range, gel blocking in the absorbent body 93 can be prevented and a large amount of body fluid can be absorbed by the absorbent body 93. Furthermore, in the absorbent body 93, the ratio of the weight of the superabsorbent polymer to the weight of the entire absorbent body, i.e., weight of superabsorbent polymer / weight of entire absorbent body 93×100 (%), is, for example, in the range of 15% by weight or more, or in the range of 15% by weight to 70% by weight.

[0044] In the absorbent body 93, the absorbent fibers and SAP may be in the form of a mixture of absorbent fibers and SAP particles, or may be an SAP sheet in which SAP particles are fixed between absorbent fibers.

[0045] <Back seat> The backsheet 92 may be formed using a liquid-impermeable substrate that prevents body fluids held by the absorber 93 from wetting clothing, and 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 made by any method, and examples include single-layer nonwoven fabrics such as spunbond nonwoven fabrics and meltblown nonwoven fabrics, composite nonwoven fabrics such as spunbond nonwoven fabric / meltblown nonwoven fabric laminates and spunbond nonwoven fabric / meltblown nonwoven fabric / spunbond nonwoven fabric laminates, and composite materials thereof. Examples of resin films include polyester, polyvinyl alcohol, polyethylene, polypropylene, and composite films of polyethylene and polypropylene.

[0046] The basis weight of the back sheet 92 is, for example, 15 g / m 2 More than 60g / m 2 The range is as follows. In order to prevent stuffiness when worn, it is preferable that the back sheet 92 be breathable. In order to make the back sheet 92 breathable, for example, a filler may be blended into the resin film of the base material, or the back sheet 92 may be embossed. An example of the filler is calcium carbonate, and the blending method may be any known method without any restrictions.

[0047] <Method of manufacturing the absorption member> The absorbent member 90 can be manufactured by a known manufacturing method, for example, a manufacturing method including a step of placing the absorber 93 between the top sheet 94 and the back sheet 92, and a step of fixing the edge of the top sheet 94 to the edge of the back sheet 92 partially or entirely using a hot melt adhesive, heat embossing, ultrasonic embossing, high frequency embossing, etc. Leg gathers, waist gathers, side flaps, etc. can be provided as necessary.

[0048] <Method for manufacturing a tape-fastened absorbent article> The method for manufacturing the tape-fastened absorbent article 50 is not particularly limited, and any conventionally known method can be used, such as a manufacturing method including the steps of preparing an exterior nonwoven fabric sheet and a back sheet film having predetermined shapes for the front body 60, crotch region 70, and back body 80, arranging an absorbent member 90 on the skin-facing surface of the exterior body material including the exterior nonwoven fabric sheet and back sheet film, and further arranging three-dimensional gathers 100, and connecting the target tape of the front body 60 and the fastening tape 64 of the back body 80. The fastening tape 64 may be prepared by previously adhering a fastening means to the surface of the base material of the side panel 63, cutting it to a predetermined shape to form the side panel 63, and joining this to the side flap 62.

[0049] Next, the auxiliary absorbent article 40 will be described in detail with reference to FIGS. Fig. 3 is a diagram schematically showing an auxiliary absorbent article according to this embodiment. (a) is a plan view schematically showing the auxiliary absorbent article according to this embodiment, and (b) is a schematic cross-sectional view taken along the X2-X2 cutting line shown in (a). Fig. 4 is an enlarged cross-sectional view of Fig. 3(b) schematically showing the auxiliary absorbent article according to this embodiment. Fig. 5 is an enlarged cross-sectional view of Fig. 3(b) schematically showing the auxiliary absorbent article according to this embodiment, showing a state in which side leakage of loose stool is prevented.

[0050] <Auxiliary absorbent articles> The auxiliary absorbent article 40 is used in combination with a tape-fastened absorbent article 50, and is placed on the skin-facing surface of the absorbent member 90 that is placed on the skin-facing surface of the exterior body 91 of the tape-fastened absorbent article 50. For example, the auxiliary absorbent article 40 is attached by being stored inside the three-dimensional gathers 100 on the skin-facing surface of the absorbent member 90 of the tape-fastened absorbent article 50. The auxiliary absorbent article 40 can also be attached to the tape-fastened absorbent article 50 only when necessary, such as when the stool is soft.

[0051] 3 to 5, the auxiliary absorbent article 40 has a generally rectangular shape that is elongated in the longitudinal direction in plan view, with its longitudinal dimension L (maximum length) being 450 mm to 650 mm and its width dimension A (maximum width) being 150 mm to 230 mm. When placed in, for example, a tape-fastened absorbent article 50, the auxiliary absorbent article 40 is sized so that it does not protrude from the absorbent member 90 in plan view and fits within the absorbent member 90. The auxiliary absorbent article 40 comprises a first layer 10, a second layer 20 that covers the first layer 10 along the length and has a first folded-back portion 22 formed by folding back and fixing an end portion 20E of the first layer 10 so as to form an opening OP1 in a portion of the skin-side surface of the first layer 10, and a third layer 30 that covers the second layer 20 along the length and has a second folded-back portion 33 formed by folding back and fixing an end portion 30E of the first layer 10 so as to form an opening OP2 in a portion of the skin-side surface of the first layer 10. Furthermore, the total width B of the first folded portion 22 is greater than the total width C of the second folded portion 33 .

[0052] <1st layer> The first layer 10 is made of nonwoven fabric and has a generally rectangular shape that is elongated in the longitudinal direction in plan view. In this embodiment, an air-through nonwoven fabric, which is easy to obtain bulk, is used as the nonwoven fabric for the first layer 10. The basis weight of this air-through nonwoven fabric is 30 g / m 2 More than 60g / m 2 The fiber thickness of the air-through nonwoven fabric is 4.0 dtex or more and 6.0 dtex or less. By adjusting the basis weight of the air-through nonwoven fabric of the first layer 10 and the thickness of the fibers that make up the air-through nonwoven fabric within the above-mentioned ranges, it is possible to reliably retain the solid content of loose stools with a nonwoven fabric having a high fiber fineness.

[0053] <2nd layer> The second layer 20 is made of a nonwoven fabric and has a generally rectangular shape that is long in the length direction in plan view. The second layer 20 covers the non-skin side surface 10C of the first layer 10 and both widthwise end portions 10B, 10B of the first layer 10 over the entire length of the first layer 10, and also covers a portion of the skin side surface 10A of the first layer 10 over the entire length of the first layer 10. The second layer 20 covers both widthwise sides of the first layer 10 on the skin-side surface 10A of the first layer 10 so as to form an opening OP1 at the center C in the widthwise central portion of the first layer 10, and both end portions 20E, 20E of the second layer 20 are folded back to form the opening OP1 and are superimposed on the second layer 20 covering both widthwise sides of the first layer 10, covering both widthwise sides of the first layer 10. In other words, both widthwise sides of the first layer 10 are doubly covered by first folded portions 22 formed by a lower second layer covering both widthwise sides of the first layer 10 and an upper second layer covering the lower second layer by folding back both end portions 20E, 20E of the second layer 20 to form the opening OP1. As described above, the second layer 20 covers the first layer 10 in the folded state at the first fold 22, and therefore the total area of ​​the second layer 20 is larger than that of the first layer 10.

[0054] The second layers 20, which double cover both sides of the first layer 10 in the width direction, are fixed between the second layers 20, i.e., between the lower second layer and the upper second layer, by hot melt adhesive HM. As shown in Fig. 3(a), the hot melt adhesive HM is provided at both longitudinal ends of the second layer 20. More specifically, it is provided at two locations between the lower second layer and the upper second layer on the right side in the width direction: at the rear end (dorsal end) and the front end (ventral end) in the longitudinal direction of the second layer 20. Furthermore, it is provided at two locations between the lower second layer and the upper second layer on the left side in the width direction: at the rear end (dorsal end) and the front end (ventral end) in the longitudinal direction of the second layer 20. The second layer has an adhered portion (not shown) between the lower second layer and the skin-facing surface 10A of the first layer 10, but as shown in Figure 5, it is deformable upward (toward the skin) so as to hold loose stool between the first layer 10 and the lower second layer.

[0055] In this embodiment, a composite nonwoven fabric containing a pulp fiber web in a spunbond nonwoven fabric is used as the nonwoven fabric for the second layer 20. The basis weight of the pulp fiber web contained in this composite nonwoven fabric is 35 g / m 2 That's all. In this embodiment, the second layer 20 covers the entire length of the first layer 10 in the longitudinal direction, but it does not have to cover the entire length.

[0056] <Composite nonwoven fabric> The use of a spunbond nonwoven fabric in a composite nonwoven fabric provides excellent support for the pulp fiber web, as well as the overall strength, softness, and texture of the composite nonwoven fabric. From this perspective, the spunbond nonwoven fabric is preferably made of at least one synthetic resin selected from the group consisting of polyamide (such as Nylon (trade name)), vinylon, polyester, acrylic resin, polyethylene, polypropylene, and polystyrene. For example, a spunbond nonwoven fabric made of synthetic resin fibers made of these materials can be used, or a spunbond nonwoven fabric made of two or more types of synthetic resin fibers can be used.

[0057] The basis weight of spunbond nonwoven fabric is 7 g / m 2 More than 20g / m 2 The lower limit is preferably 10 g / m 2 The upper limit is preferably 17 g / m or more. 2 From the viewpoints of uniformity, touch, absorbency, etc., the basis weight of the pulp fiber web is preferably 30 g / m or less. 2 More than 50g / m 2 The lower limit is 35 g / m 2 The upper limit is preferably 45 g / m or more. 2 It is more preferable that the basis weight of the composite nonwoven fabric is within the above range. By setting the basis weight of the spunbond nonwoven fabric and the pulp fiber web within the above range, it becomes easy to adjust the basis weight of the composite nonwoven fabric within an appropriate range.

[0058] The pulp fiber web has good bodily fluid absorption properties, and therefore, for example, can quickly diffuse bodily fluid that has passed locally through the spunbond nonwoven fabric, and easily spread the bodily fluid over the entire area of ​​the second layer 20. The pulp fiber web can be any nonwoven fabric primarily made of pulp fibers. While the pulp fiber is not particularly limited, it is preferably bleached coniferous kraft pulp (N-BKP) such as radiata pine, slash pine, southern pine, lodgepole pine, spruce, or Douglas fir. One type of N-BKP may be used alone, or two or more types may be used in combination.

[0059] <3rd layer> The third layer 30 is made of a nonwoven fabric and has a generally rectangular shape that is long in the length direction in plan view. The third layer 30 covers the non-skin side surface 20C of the second layer 20 and both widthwise end portions 20B, 20B of the second layer 20 over the entire length of the second layer 20, and also covers a portion of the skin side surface 20A of the second layer 20 over the entire length of the second layer 20. Therefore, in this embodiment, the first layer 10, the second layer 20, and the third layer 30 all have the same length. The third layer 30 covers both widthwise ends of the upper second layer of the second layer 20 on the skin-side surface 20A of the upper second layer of the second layer 20 so as to form an opening OP2 at the center C in the widthwise central part of the second layer 20, and both end portions 30E, 30E of the third layer 30 are folded back to form an opening OP2 and are overlapped on top of the third layer 30 covering both widthwise ends of the second layer 20, covering both widthwise ends of the upper second layer of the second layer 20. In other words, both widthwise sides of the second layer 20 are doubly covered by a second folded portion 33 formed by a lower third layer covering both widthwise sides of the upper second layer of the second layer 20, and an upper third layer covering the lower third layer by folding back both ends 30E, 30E of the third layer 30 to form an opening OP2. As described above, the third layer 30 covers the second layer 20 in the folded state by the second folded portion 33, and therefore the total area of ​​the third layer 30 is larger than that of the first layer 10.

[0060] The third layer 30, which double covers both sides of the width direction of the upper second layer of the second layer 20, is fixed between the third layers 30, i.e., between the lower third layer and the upper third layer, by hot melt adhesive HM. 3(a), the hot melt adhesive HM is provided at both longitudinal ends of the third layer 30. More specifically, the hot melt adhesive HM is provided at two locations between the lower third layer and the upper third layer on the right side in the width direction, namely, at the rear end (dorsal end) and the front end (ventral end) in the longitudinal direction of the third layer 30. The hot melt adhesive HM is also provided at two locations between the lower third layer and the upper third layer on the left side in the width direction, namely, at the rear end (dorsal end) and the front end (ventral end) in the longitudinal direction of the third layer 30. The third layer 30 has an adhered portion (not shown) between the lower third layer and the upper second layer of the second layer 20, but as shown in Figure 5, it is deformable upward (toward the skin) so as to hold loose stool between the skin-facing surface of the lower third layer and the upper second layer.

[0061] The nonwoven fabric of the third layer 30 of this embodiment is a composite nonwoven fabric containing a pulp fiber web in a spunbond nonwoven fabric, similar to the second layer 20. The basis weight of the pulp fiber web contained in this composite nonwoven fabric is 35 g / m, similar to the second layer 20. 2 That's all. In this embodiment, the third layer 30 covers the entire length of the second layer 20 in the longitudinal direction, but it does not have to cover the entire length.

[0062] <Width of the first folded portion and width of the second folded portion> 3(b) and 4, the above-mentioned first folded portion 22 has a first folded portion 22 on the left side in the width direction of the opening OP1 and a first folded portion 22 on the right side in the width direction of the opening OP1. The width B1 of the first folded portion 22 on the left side in the width direction and the width B2 of the first folded portion 22 on the right side in the width direction are equal. The width B1 of the first folded portion 22 on the left side in the width direction indicates the dimension between the first folded end 22C on the opening OP1 side of the first folded portion 22 on the left side in the width direction and the left end 10B in the width direction of the first layer 10. The width B2 of the first folded portion 22 on the right side in the width direction indicates the dimension between the first folded end 22C on the opening OP1 side of the first folded portion 22 on the right side in the width direction and the right end 10B in the width direction of the first layer 10.

[0063] 3(b) and 4, the second folded portion 33 described above has a second folded portion 33 on the left side in the width direction of the opening OP2 and a second folded portion 33 on the right side in the width direction of the opening OP2. The width C1 of the second folded portion 33 on the left side in the width direction and the width C2 of the second folded portion 33 on the right side in the width direction are equal. The width C1 of the second folded portion 33 on the left side in the width direction indicates the dimension between the second folded end 33C on the opening OP2 side of the second folded portion 33 on the left side in the width direction and the left end 10B in the width direction of the first layer 10. The width C2 of the second folded portion 33 on the right side in the width direction indicates the dimension between the second folded end 33C on the opening OP2 side of the second folded portion 33 on the right side in the width direction and the right end 10B in the width direction of the first layer 10.

[0064] The centers C of the openings OP1 and OP2 in the width direction coincide with each other, and the dimension between the center C and the first folded end 22C on the opening OP1 side of the first folded portion 22 on the left side in the width direction is equal to the dimension between the center C and the first folded end 22C on the opening OP1 side of the first folded portion 22 on the right side in the width direction. In addition, the dimension between the center C and the second folded end 33C on the opening OP2 side of the second folded portion 33 on the left side in the width direction is equal to the dimension between the center C and the second folded end 33C on the opening OP2 side of the second folded portion 33 on the right side in the width direction.

[0065] In the auxiliary absorbent article 40 of this embodiment, the total B of the widths B1 and B2 of the first folded portion 22 is larger than the total C of the widths C1 and C2 of the second folded portion 33. The ratio of the width A of the first layer 10 to the total width B of the width B1 of the first folded portion 22 on the left side in the width direction and the width B2 of the first folded portion 22 on the right side in the width direction in the second layer 20 to the total width C of the width C1 of the second folded portion 33 on the left side in the width direction and the width C2 of the second folded portion 33 on the right side in the width direction in the third layer 30 is 1:0.6-0.7:0.3-0.4.

[0066] In the auxiliary absorbent article 40 of this embodiment, as shown in FIG. 5, the first folded portion 22 deforms upward (toward the skin) to form a barrier against excreted loose stool, which is held between the first layer 10 and the first folded portion 22, thereby preventing lateral leakage of the loose stool. Furthermore, as shown in FIG. 5, the second folded portion 33 deforms upward (toward the skin) to form a barrier against excreted loose stool, which is held between the first folded portion 22 and the second folded portion 33, thereby further preventing lateral leakage of the loose stool. In this way, the auxiliary absorbent article 40 of this embodiment can reliably prevent lateral leakage of loose stool by the double barrier of the first folded portion 22 and the second folded portion 33. As a result, excreted loose stool does not leak from the auxiliary absorbent article 40.

[0067] In the auxiliary absorbent article 40 of this embodiment, a double barrier is formed by the first folded-back portion 22 of the second layer 20 and the second folded-back portion 33 of the third layer 30, but multiple layers may be provided to form multiple barriers. For example, the fourth layer may be formed of a nonwoven fabric that is substantially rectangular and long in the longitudinal direction in a plan view, and the fourth layer may cover the non-skin-side surface of the third layer 30 and both widthwise ends of the third layer 30 over the entire length of the third layer 30, and may also cover a portion of the skin-side surface of the third layer 30 over the entire length of the third layer 30. In this case, the fourth layer covers both widthwise edges of the upper third layer 30 on the skin-facing surface of the upper third layer 30, leaving an opening at the center C in the widthwise central portion of the third layer 30, and both ends of the fourth layer are folded back to form an opening and overlap the third layer 30 covering both widthwise edges of the upper third layer 30, thereby covering both widthwise edges of the upper third layer 30. In other words, both widthwise edges of the third layer 30 may be doubly covered by a third folded portion formed by a lower fourth layer covering both widthwise edges of the upper third layer 30, and an upper fourth layer covering the lower fourth layer by folding back both ends of the fourth layer to form an opening. In this case, the distance between the center C and the third folded end on the opening side of the third folded portion is equal on the left and right, as described above. This makes it possible to more reliably prevent loose stool from leaking sideways due to the triple barrier of the first folded portion 22, the second folded portion 33 and the third folded portion.

[0068] As described above, the auxiliary absorbent article 40 of this embodiment has a first layer 10, a second layer 20 having the above-mentioned first folded portion 22, and a third layer 30 having the above-mentioned second folded portion 33, and the sum B of the widths B1 and B2 of the first folded portion 22 is larger than the sum C of the widths C1 and C2 of the second folded portion 33. In other words, the width of the opening OP2 formed by the third layer 30 is larger than the width of the opening OP1 formed by the second layer 20. Therefore, excreted loose stool easily enters the large opening OP2 of the second folded portion 33, and after reaching the small opening OP1 of the first folded portion 22, is received by the first folded portion 22 and the second folded portion 33, thereby reliably preventing the loose stool from leaking sideways. Furthermore, moisture contained in loose stool, etc. is quickly guided downward (toward the skin side) and absorbed by the absorbent member 90 of the tape-fastened absorbent article 50 used in combination. In this way, the auxiliary absorbent article 40 is thin and designed specifically to receive loose stools, and by utilizing the absorption capacity of the tape-fastened absorbent article 50 used in combination, it is possible to provide a low-cost auxiliary absorbent article 40 that can appropriately prevent the leakage of loose stools.

[0069] In the auxiliary absorbent article 40 of this embodiment, openings OP1 and OP2 are each provided on the skin-side surface 10A in the central portion of the width direction of the first layer 10, and a first folded portion 22 and a second folded portion 33 are each provided on both sides of the openings OP1 and OP2 in the width direction. As a result, loose stool that has entered through the openings OP1 and OP2 can be held evenly in the width direction by the first folded portion 22 and the second folded portion 33. This prevents loose stool from becoming unevenly distributed, reliably preventing leakage of loose stool. Furthermore, even if the auxiliary absorbent article 40 is positioned slightly offset in the width direction relative to the tape-fastened absorbent article 50, the loose stool can be reliably allowed to enter the auxiliary absorbent article 40 through the openings OP1 and OP2 without being received by the upper side (skin side) of the third layer 30, further reliably preventing leakage of loose stool.

[0070] In the auxiliary absorbent article 40 of this embodiment, the ratio of the width A of the first layer 10, the total width B of the widths B1 and B2 of the first folded portion 22, and the total width C of the widths C1 and C2 of the second folded portion 33 is 1:0.6-0.7:0.3-0.4. By adjusting this ratio to fall within the above range, excreted loose stool is received by the first folded portion 22 and the second folded portion 33, and side leakage of loose stool can be more reliably prevented.

[0071] In the auxiliary absorbent article 40 of this embodiment, the first layer 10 includes an air-through nonwoven fabric, and the basis weight of the air-through nonwoven fabric is 30 g / m 2 More than 60g / m 2 Hereinafter, the thickness of the fibers constituting the air-through nonwoven fabric is 4.0 dtex or more and 6.0 dtex or less, and the second layer 20 and the third layer 30 are each a composite nonwoven fabric containing a pulp fiber web in a spunbond nonwoven fabric, and the basis weight of the pulp fiber web contained therein is 35 g / m 2 That's all. Therefore, by adjusting the basis weight of the air-through nonwoven fabric of the first layer 10 and the thickness of the fibers constituting the air-through nonwoven fabric within the above-mentioned numerical ranges, the air-through nonwoven fabric with high fiber fineness of the first layer 10 can reliably retain the solid content of excreted loose stool and allow moisture to permeate downward. Furthermore, by using a spunbond nonwoven fabric in which the basis weight of the pulp fiber webs of the second layer 20 and the third layer 30 is adjusted within the above-mentioned numerical ranges, the support for the pulp fiber webs and the overall strength, softness, texture, etc. of the composite nonwoven fabric can be excellent.

[0072] Next, an auxiliary absorbent article 40 according to a modification of this embodiment will be described with reference to Fig. 6. Fig. 6 is a diagram schematically showing an auxiliary absorbent article according to a modification of this embodiment. (a) is a plan view schematically showing the auxiliary absorbent article according to the modification of this embodiment, and (b) is a schematic cross-sectional view taken along the X3-X3 cutting line shown in (a). The same members as those in the previous embodiment are designated by the same reference numerals, and only the parts that differ from the previous embodiment will be described. In addition, in the modified example of this embodiment, as in the previous embodiment, the lower second layer and the upper second layer are fixed together with a hot melt adhesive HM, and the lower third layer and the upper third layer are fixed together with a hot melt adhesive HM, but this is not shown in the illustration.

[0073] A slit 25 penetrating the second layer 20 is provided in the widthwise central portion and the lengthwise central portion of the non-skin-side surface 20C of the second layer 20 covering the non-skin-side surface 10C of the first layer 10. The slit 25 is a through hole that is arranged between the first folded end 22C of the first folded portion 22 on the left side in the width direction and the first folded end 22C of the first folded portion 22 on the right side in the width direction, i.e., so that the width D of the slit 25 falls within the widthwise range of the opening OP1 when viewed in a plane. Furthermore, the slit 25 has an elongated oval shape in plan view, with both ends in the longitudinal direction extending the same distance from the center of the longitudinal direction of the second layer 20 to the front (ventral side) and rear (dorsal side). The front end (ventral side end) and rear end (dorsal side end) of the slit 25 are formed in a rounded curved shape without corners. The dimension between the widthwise center of the second layer 20 and the left end of the slit 25 in the widthwise direction is the same as the dimension between the widthwise center of the second layer 20 and the right end of the slit 25 in the widthwise direction. The length l of the slit 25 is 50% to 70% of the length L of the auxiliary absorbent article 40, and the width D of the slit 25 is 10% to 20% of the width A of the auxiliary absorbent article 40.

[0074] As described above, in this modification of the present embodiment, the slits 25 are provided, and the slits 25 can promote the absorption of moisture contained in loose stools and the like into the lower layer, i.e., the absorbent member 90 arranged in the exterior body 91 of the tape-fastened absorbent article 50. Furthermore, by adjusting the length l and width D of the slits 25 within the above-mentioned numerical ranges, the absorption of moisture contained in loose stools and the like can be further promoted. Note that the moisture contained in loose stools and the like is quickly guided downward (to the side away from the skin) and absorbed by the absorbent member 90 of the tape-fastened absorbent article 50 used in combination. In this way, because the auxiliary absorbent article 40 is thin and configured specifically to receive loose stool, it is possible to provide a low-cost auxiliary absorbent article 40 that can appropriately prevent leakage of loose stool by utilizing the absorption capacity of the tape-fastened absorbent article 50 used in combination. Furthermore, by setting the replacement time after defecation when the absorption capacity of the tape-fastened absorbent article 50 has been used up, it is possible to increase the economy of replacement, and it is possible to obtain an auxiliary absorbent article 40 that is thin and wide and therefore easily replaceable.

[0075] Although the present invention has been described above using embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various modifications and improvements can be made to the above embodiments. Furthermore, it is clear from the claims that such modifications and improvements can also be included within the technical scope of the present invention. [Explanation of symbols]

[0076] 10 1st layer 20 2nd layer 20E End 22 First fold 25 slit 30 3rd layer 30E end 33 Second fold 40 Supplementary absorbent articles 50 Tape-fastened absorbent articles 60 Front 62 Side flap 63 Side Panel 64 Fastening Tape 66 perforations 70 Crotch 80 Back 90 Absorbing member 91 Exterior body 92 Back Seat 93 Absorbent 94 top sheet 100 Three-dimensional gathers A Width of the first layer B Total width of first folded part C Total width of second fold OP1, OP2 opening

Claims

1. An auxiliary absorbent article attached to an absorbent article, comprising: The length is 450 mm or more and 650 mm or less, and the width is 150 mm or more and 230 mm or less, The first layer, a second layer covering the first layer in the length direction and having a first folded portion formed by folding back and fixing an end portion of the first layer so as to open a portion of the skin-side surface of the first layer; a third layer covering the second layer in the length direction and having a second folded portion formed by folding back and fixing an end portion of the third layer so as to open a part of the skin-side surface of the first layer; An auxiliary absorbent article, wherein the sum of the widths of the first folded portions is greater than the sum of the widths of the second folded portions.

2. 2. The auxiliary absorbent article of claim 1, wherein the opening is provided on the skin-side surface of the central portion of the first layer in the width direction, and the first folded portion and the second folded portion are provided on both sides of the opening in the width direction.

3. 3. The auxiliary absorbent article according to claim 1, wherein the ratio of the width of the first layer, the sum of the widths of the first folded portion, and the sum of the widths of the second folded portion is 1:0.6-0.7:0.3-0.

4.

4. The first layer includes an air-through nonwoven fabric, and the basis weight of the air-through nonwoven fabric is 30 g / m ２ 60g / m or more ２ The thickness of the fibers constituting the air-through nonwoven fabric is 4.0 dtex or more and 6.0 dtex or less, The second layer and the third layer are each a composite nonwoven fabric containing a pulp fiber web in a spunbond nonwoven fabric, and the basis weight of the pulp fiber web contained therein is 35 g / m ２ The auxiliary absorbent article according to claim 1 .

5. An auxiliary absorbent article as described in claim 1, wherein a slit penetrating the second layer is provided in the central portion in the width direction and the central portion in the length direction of the second layer covering the non-skin-side surface of the first layer.

6. The auxiliary absorbent article according to claim 5, wherein the length of the slit is 50% or more and 70% or less of the length of the auxiliary absorbent article, and the width of the slit is 10% or more and 20% or less of the width of the auxiliary absorbent article.

Images