Absorbent article

The absorbent article addresses the issue of skin pressure and discomfort by incorporating side sheets with elastic members and a folding portion to reduce contact with the wearer's skin, enhancing wearability and comfort.

JP2025062448APending Publication Date: 2025-04-14OJI HLDG CORP
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
JP2023171538
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-10-02
Publication Date
2025-04-14

AI Technical Summary

Technical Problem

Existing absorbent articles, such as disposable diapers, can cause excessive pressure on the wearer's skin when secured around the thighs, leading to reduced wearability and discomfort.

Method used

The absorbent article features a design with a pair of side sheets having first elastic members disposed outside the absorbent core in the width direction, extending in the longitudinal direction, and a folding portion that overlaps the outer end in the width direction to prevent skin contact.

Benefits of technology

This design improves the wearing feel by reducing skin pressure and discomfort, allowing the wearer to move freely without adverse effects on the skin.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025062448000001_ABST
    Figure 2025062448000001_ABST
Patent Text Reader

Abstract

To provide an absorbent article improving fitting comfort for wearers.SOLUTION: An absorbent article includes: a length along a longitudinal direction corresponding to the front-back direction of a wearer; a length along the width direction orthogonal to the longitudinal direction; an absorber for absorbing liquid; a pair of side sheets disposed on width-directional both outer sides of the absorbent body and having first elastic members attached in a state stretched in the longitudinal direction; and folding parts extending in the longitudinal direction on width-directional outer sides of areas to which the first elastic members are attached and folding width-directional outer ends such that the non-skin surface sides are in contact with each other.SELECTED DRAWING: Figure 7
Need to check novelty before this filing date? Find Prior Art

Description

[Technical field]

[0001] The present invention relates to an absorbent article. [Background technology]

[0002] 2. Description of the Related Art Absorbent articles such as disposable diapers are known in the art (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-068464 A Summary of the Invention [Problem to be solved by the invention]

[0004] A tape-type absorbent article is fixed to the wearer's body in a state where it surrounds the wearer's waist and thighs, and therefore the wearer can freely change his / her position while wearing the absorbent article. However, by being fixed to the body in a state where it surrounds the wearer's thighs, there is a risk that the absorbent article may excessively press against the wearer's skin, resulting in a poor fit.

[0005] An object of the present invention is to provide an absorbent article that improves the wearing comfort of the wearer. [Means for solving the problem]

[0006] An absorbent article according to one aspect of the present invention comprises: A length along a longitudinal direction corresponding to the front-to-back direction of the wearer; A length along a width direction perpendicular to the longitudinal direction; An absorbent that absorbs liquid; A pair of side sheets are arranged on both outer sides of the absorbent body in the width direction and have first elastic members attached in a stretched state in the longitudinal direction; The garment further includes a folding portion extending in the longitudinal direction, widthwise outer than the area to which the first elastic member is attached, and folding the widthwise outer ends so that the non-skin facing sides are in contact with each other. Effect of the Invention

[0007] According to the present invention, it is possible to improve the wearing comfort of the wearer. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a diaper according to an embodiment. [Diagram 2] FIG. 2 is an exploded perspective view of the diaper according to the embodiment. [Diagram 3] FIG. 3 is a cross-sectional view of the diaper according to the embodiment. [Figure 4] FIG. 4 is a plan view of the diaper according to the embodiment. [Diagram 5] FIG. 5 is a plan view showing an excreted liquid holding area and an excreted liquid inlet section provided in a diaper according to an embodiment. [Figure 6] FIG. 6 is an enlarged view of a side sheet provided in the diaper according to the embodiment. [Figure 7] FIG. 7 is a plan view of the diaper according to the embodiment as viewed from the cover sheet side. [Figure 8] FIG. 8 is a flowchart showing a method for manufacturing a diaper according to an embodiment. [Figure 9] FIG. 9 is a diagram showing an example of how the diaper according to the embodiment is folded during distribution. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, absorbent articles according to embodiments of the present invention will be described with reference to the drawings. Note that the configurations of the following embodiments are merely examples, and the present invention is not limited to the configurations of these embodiments.

[0010] <Embodiment> In this embodiment, the longitudinal direction of a tape-type disposable diaper (an example of an "absorbent article" in the present application, hereinafter simply referred to as a "diaper") is the direction connecting the front body facing the wearer's abdomen and the rear body facing the back. Between the front body (one side in the longitudinal direction) and the rear body (the other side in the longitudinal direction) (at the center in the longitudinal direction), a crotch portion facing the wearer's crotch (positioned facing the crotch). In addition, when the diaper is worn by a wearer (hereinafter abbreviated as "worn state"), the side facing the wearer's skin (the inner side when worn) is the skin-facing side, and the opposite side to the skin-facing side (the outer side when worn) is the non-skin-facing side. Furthermore, the direction connecting the skin-facing side and the non-skin-facing side is the thickness direction, and the direction perpendicular to both the longitudinal direction and the thickness direction is the width direction. In addition, the view from the thickness direction is the planar view. A diaper has a length along a longitudinal direction corresponding to the front-to-rear direction of a wearer, and a length along a width direction perpendicular to the longitudinal direction, and is worn between the crotch of a wearer. In addition, terms related to directions used in this application mean directions corresponding to the front-to-rear and left-to-right directions of a wearer when the diaper is worn. For example, the front-to-rear direction in this application means a direction corresponding to the front-to-rear and left-to-right directions of a wearer when the diaper is worn. In addition, the left-to-right direction in this application means a direction corresponding to the left-to-right directions of a wearer when the diaper is worn.

[0011] FIG. 1 is a perspective view of a diaper 1 according to this embodiment. The diaper 1 according to this embodiment is for adults (for nursing care). The diaper 1 has a crotch region 1B, which is a region corresponding to the crotch covering the pubic area of ​​the wearer when worn, a front body region 1F, which is located in front of the crotch region 1B and corresponds to the waist of the wearer's abdomen, and a back body region 1R, which is located behind the crotch region 1B and corresponds to the waist of the wearer's back. On both left and right edges of the back body region 1R, there are provided tapes 2L1, 2L2, 2R1, and 2R2 (which are examples of "tapes" in this application) that have hook parts arranged on the wearer's skin side and are attached to the front body region 1F and have loop processing on the non-skin side (which is an example of the "adhered part" in this application) by the hook parts (which are an example of the "attached part" in this application). When the tapes 2L1, 2L2, 2R1, and 2R2 are attached to the front patch 2F with the front body region 1F positioned on the wearer's abdomen and the rear body region 1R positioned on the wearer's back, the diaper 1 is fixed to the wearer's body in a state surrounding the wearer's waist and thighs. Since the diaper 1 is fixed to the wearer's body in this manner, the wearer can freely change his or her body position while wearing the diaper 1.

[0012] In the diaper 1, an absorbent 6 capable of absorbing and retaining liquid is mainly disposed near the crotch region 1B. In addition, in order to prevent the formation of gaps between the diaper 1 and the wearer's skin that serve as a liquid outflow path, the diaper 1 is provided with leg gathers 3AL, 3AR at a portion along the wearer's leg circumference (thighs), and three-dimensional gathers 3L, 3R are provided on the inner side of the leg gathers 3AL, 3AR in the width direction of the diaper 1, and a waist gather 3W is provided at a portion along the wearer's abdominal circumference. The leg gathers 3AL, 3AR, the three-dimensional gathers 3L, 3R, and the waist gathers 3W are in close contact with the wearer's skin by the elastic force of the elastic members. Therefore, the liquid discharged from the wearer is absorbed by the absorbent 6 without leaking out of the diaper 1. As the elastic member, a thread-like or strip-like rubber or the like can be appropriately selected.

[0013] Fig. 2 is an exploded perspective view of the diaper 1 according to the embodiment. Fig. 3 is a cross-sectional view of the diaper 1 according to the embodiment cut in the width direction at the center in the longitudinal direction. Fig. 4 is a plan view of the diaper 1 according to the embodiment. The diaper 1 has a surface layer that forms an outer surface when worn. The cover sheet 4 is a sheet-like member having a substantially rectangular appearance with constrictions 4KL, 4KR at the portions corresponding to the long sides, and forms the exterior surface of the diaper 1. The constrictions 4KL, 4KR are provided at the portions where the wearer's thighs are located (leg surrounding portions 10L, 10R shown in FIG. 4). The cover sheet 4 is provided to reinforce the back sheet 5 described later and to improve the feel. For example, in order to suppress leakage of excrement, a nonwoven fabric made of a liquid-impermeable thermoplastic resin can be used as the material for the cover sheet 4. Examples of liquid-impermeable thermoplastic resins include polyethylene (PE) and polypropylene (PP). The cover sheet 4 forms the outer peripheral shape (outer shape) of the diaper 1. The cover sheet 4 is a sheet that forms the front body region 1F, the crotch region 1B, and the back body region 1R described above. The cover sheet 4 is not limited to a single-layer structure, and may be a multi-layer structure having an inner cover sheet and an outer cover sheet.

[0014] The diaper 1 has a back sheet 5, an absorbent body 6, and a top sheet 7, which are laminated in this order on the skin-facing side of the cover sheet 4. The back sheet 5 has the same planar shape as the cover sheet 4. The back sheet 5 is a sheet-like member having a substantially rectangular appearance with constrictions 5KL, 5KR at the portions corresponding to the long sides, and is disposed on the skin-facing side of the cover sheet 4. The constrictions 5KL, 5KR are provided at the portions where the wearer's thighs are located (leg surrounding portions 10L, 10R shown in FIG. 4). The top sheet 7 is a sheet-like member having a substantially rectangular appearance. The top sheet 7 is made of a water-permeable sheet. The absorbent core 6C of the absorbent body 6 is a mat-like member having a substantially hourglass-shaped appearance. The top sheet 7 may have constrictions at the portions corresponding to the long sides, similar to the back sheet 5.

[0015] The back sheet 5, absorbent 6, and top sheet 7 are laminated in order on the cover sheet 4 with their longitudinal direction coinciding with the longitudinal direction of the cover sheet 4. The back sheet 5, like the cover sheet 4, is a film formed of a liquid-impermeable thermoplastic resin material to suppress leakage of discharged liquid. The back sheet 5 is preferably made of a material that also has moisture permeability to suppress stuffiness when worn. The top sheet 7 is a sheet-like member that is placed on the wearer's skin side so as to cover the water-absorbing surface of the absorbent 6. This top sheet 7 has water permeability in part or all of it. Therefore, when the diaper 1 is worn, the discharged liquid discharged by the wearer passes through the top sheet 7 that may come into contact with the wearer's skin and enters the absorbent 6, where it is absorbed. For example, a woven fabric, a nonwoven fabric, or a porous film is used as the material for the top sheet 7. The top sheet 7 may be hydrophilic. The joining of the sheets and the like includes adhesion with a hot melt adhesive, ultrasonic fusion, and the like.

[0016] The back sheet 5, absorbent body 6, and top sheet 7 all extend from the front body region 1F to the back body region 1R. Therefore, when the wearer's private parts are covered with the cover sheet 4 in which the back sheet 5, absorbent body 6, and top sheet 7 are laminated, both ends in the longitudinal direction of the back sheet 5, absorbent body 6, and top sheet 7 are located on the wearer's ventral side and back side. In other words, the wearer's private parts are covered by the absorbent body 6 from the wearer's ventral side to the back side. Therefore, whether the wearer is lying in a supine position or a prone position, the discharged liquid comes into contact with the absorbent body 6 via the top sheet 7.

[0017] The absorbent body 6 has an absorbent core 6C and a core wrap sheet 6W that wraps the absorbent core 6C. In this embodiment, the absorbent core 6C is formed by laminating a plurality of absorbent mats. In this embodiment, the absorbent core 6C has an upper absorbent mat 6A arranged on the skin side and a lower absorbent mat 6B arranged on the non-skin side. The upper absorbent mat 6A is an absorbent mat that is located on the skin side of the wearer when worn, and has an hourglass shape with a narrowed part in the crotch region 1B when viewed from above. In contrast, the lower absorbent mat 6B is an absorbent mat that is located on the non-skin side of the wearer when worn, and has a rectangular shape when viewed from above. The lower absorbent mat 6B is centered on the central part of the absorbent body 6 in the width direction, and its overall width is equal to or less than the narrowed part of the upper absorbent mat 6A. That is, the lower absorbent mat 6B is laminated with the upper absorbent mat 6A so that the lower absorbent mat 6B is entirely hidden by the upper absorbent mat 6A when viewed in plan from the skin-facing side.

[0018] The crotch region 1B is sandwiched between the wearer's legs, and thus compressive pressure is applied inward in the width direction. On the other hand, in the front body region 1F and the back body region 1R, the weight of the wearer is applied, and pressure is applied in the thickness direction of the absorbent core 6C. To deal with these pressures, the crotch region 1B of the absorbent core 6C is provided with a constriction. Furthermore, the upper layer absorbent mat 6A and the lower layer absorbent mat 6B are laminated to give the absorbent core 6C in the crotch region 1B a high basis weight. This prevents the absorbent core 6C from losing its shape inward in the width direction in the crotch region 1B. Also, in the front body region 1F and the back body region 1R, the width of the absorbent core 6C is widened to increase the area on which the weight is applied, thereby preventing the absorbent core 6C from losing its shape in the thickness direction. For this reason, it is preferable to make the absorbent core 6C approximately hourglass-shaped.

[0019] The absorbent core 6C has a structure in which granular absorbent resin such as SAP (Super Absorbent Polymer), a hydrophilic polymer with a cross-linked structure capable of absorbing and retaining water, is held in the gaps between short fibers (absorbent materials) of cellulosic fibers such as pulp fibers, rayon fibers, or cotton fibers, or between short fibers obtained by hydrophilizing synthetic fibers such as polyethylene, polypropylene, or polyethylene terephthalate. Therefore, in the absorbent core 6C, the volumetric change of the absorbent resin before and after absorbing liquid basically occurs within the short fibers that hold the absorbent resin in the gaps. Therefore, when the absorbent core 6C is viewed as a whole, it can be said that the expansion rate of the thickness of the absorbent core 6C that absorbs liquid is not as large as the expansion rate of the absorbent resin itself.

[0020] The SAP particles of this embodiment refer to a resin composition containing SAP in a granular form. The term "SAP-containing resin composition" as used herein includes both a composition consisting of SAP alone and a composition containing SAP as the main component and containing other substances to the extent that they do not adversely affect the water absorption. Examples of "other substances" include additives (such as surface modifiers added to make the particle surface hydrophobic) and unreacted monomers remaining during the synthesis of SAP.

[0021] The upper absorbent mat 6A is provided with a pair of slits 6H on the left and right. The slits 6H extend obliquely with respect to the longitudinal direction of the diaper 1 so that the front side faces outward in the width direction. The slits 6H penetrate the upper absorbent mat 6A in the thickness direction. The upper absorbent mat 6A is formed using a mold that does not allow absorbent materials such as short fibers to be laminated in the formation area of ​​the slits 6H, so that the slits 6H are also formed. In this embodiment, the slits 6H are of the through type, but they may be of the non-through type. The lower absorbent mat 6B may also be provided with a through type slit, and in this case, the slits provided in the upper absorbent mat 6A and the lower absorbent mat 6B may overlap each other in the thickness direction. Instead of the slits 6H, grooves may be provided by compressing the skin-facing side of the upper absorbent mat 6A. The diaper 1 according to this embodiment absorbs and retains urine discharged by the wearer with the absorbent body 6. In the diaper 1, urine can be dispersed along the slits 6H, and therefore the urine can be absorbed and retained by the entire upper absorbent mat 6A and the lower absorbent mat 6B.

[0022] The core wrap sheet 6W is a thin liquid-permeable sheet, and wrapping the absorbent core 6C with the core wrap sheet 6W makes it difficult for the SAP of the absorbent core 6C to be mixed with other structures. In addition, the absorbent core 6C is prevented from losing its shape. The core wrap sheet 6W can be made of pulp fiber, and tissue paper can be used as an example. The absorbent body 6 is wrapped in the back sheet 5 and the top sheet 7, and these sheets can also prevent the absorbent body 6 from losing its shape, so the core wrap sheet 6W may not be provided.

[0023] The diaper 1 also has long, narrow, strip-shaped side sheets 8L, 8R. The side sheets 8L, 8R are liquid-impermeable sheets provided on the long sides of the top sheet 7. The side sheets 8L, 8R are arranged on the outer side of the center in the width direction of the diaper 1. As with the cover sheet 4, the side sheets 8L, 8R have constrictions 8KL, 8KR at the locations where the wearer's thighs are located (leg surrounding portions 10L, 10R shown in FIG. 4). The side sheets 8L, 8R have elastic members 8EL, 8ER (an example of the "second elastic member" in this application) arranged in a stretched state along the longitudinal direction. The side sheets 8L, 8R are pulled in the longitudinal direction by the stretching force of the elastic members 8EL, 8ER and rise from the top sheet 7 to the skin-facing side. One or more elastic members 8EL, 8ER (three in this embodiment) are provided depending on the required elastic force.

[0024] The side sheets 8L, 8R have, on the skin-facing side of the top sheet 7, bonded regions 81L, 81R that are bonded to the top sheet 7 on the outer side in the width direction of the diaper 1, and non-bonded regions 82L, 82R that are not bonded to the top sheet 7 on the inner side in the width direction of the bonded regions 81L, 81R. The side sheets 8L, 8R are bonded to the top sheet 7 in the bonded regions 81L, 81R, and the side sheets 8L, 8R are bonded to the back sheet 5 disposed on the non-skin-facing side of the top sheet 7 on the outer side. The bonded regions 81L, 81R are formed by applying a hot melt adhesive to the top sheet 7 and the back sheet 5 disposed on the non-skin-facing side of the side sheets 8L, 8R, and then stacking the side sheets 8L, 8R thereon.

[0025] In non-bonded regions 82L, 82R located widthwise inside of the bonded regions 81L, 81R, the side sheets 8L, 8R are not bonded to the top sheet 7. Bonded refers to a state in which the bonded materials cannot be peeled apart without tearing or destroying the materials, such as the sheets, of the diaper 1. The sheets to be bonded may not only be different sheets, but also a single sheet may be folded over to bond an overlapping region.

[0026] At both longitudinal ends of the non-bonded regions 82L, 82R, fixing portions 90L, 90R, 91L, 91R are provided that fix the side sheets 8L, 8R to the top sheet 7 with hot melt adhesive. The fixing portions 90L, 90R are provided in the back body region 1R, and the fixing portions 91L, 91R are provided in the front body region 1F. The fixing portions 90L, 90R, 91L, 91R are formed by hot melt adhesive applied in stripes between the side sheets 8L, 8R and the top sheet 7, and adhere and fix the side sheets 8L, 8R to the top sheet 7.

[0027] In the side sheets 8L, 8R, non-bonded regions 82L, 82R between the front and rear fixing parts 90L, 90R, 91L, 91R rise from the top sheet 7 toward the skin side. More specifically, the side sheets 8L, 8R are boundaries between the bonded regions 81L, 81R and the non-bonded regions 82L, 82R, and the inner non-bonded regions 82L, 82R rise toward the skin side at the curved upright lines 84L, 84R. This forms a gap between the side sheets 8L, 8R and the top sheet 7.

[0028] In this embodiment, the side sheets 8L, 8R are provided on both the left and right sides of the diaper 1. Here, the side sheets 8L, 8R have free ends 82LA, 82RA arranged inside the non-bonded regions 82L, 82R, and the above-mentioned elastic members 8EL, 8ER arranged on the free ends 82LA, 82RA side. When an absorbent pad is inserted between the non-bonded regions 82L, 82R and the top sheet 7, it is preferable to raise the free ends 82LA, 82RA from the top sheet 7 to the skin side by the elastic force of the elastic members 8EL, 8ER. Since the side sheets 8L, 8R are non-permeable, the non-bonded regions 82L, 82R rise and abut against the skin side of the wearer, thereby eliminating any gap that may be formed between the diaper 1 and the skin side, and suppressing leakage of excreta such as urine to the outside. In addition, the non-bonded regions 82L, 82R are The elastic members 8EL, 8ER tend to rise from the top sheet 7 in the areas where they are stretched, and these rising portions form three-dimensional gathers 3L, 3R which are leakage barriers that prevent discharged liquids and waste from leaking to the outside. The elastic members 8EL, 8ER exert their stretching force mainly in the crotch region 1B, so that the non-bonded regions 82L, 82R can function as leakage barriers in the crotch region 1B where the top sheet 7 and absorbent pad are furthest from the wearer's skin. The three-dimensional gathers 3L, 3R may be formed along the rising lines 84L, 84R so as to cover the skin-facing sides of the side sheets 8L, 8R that are disposed on the widthwise outer side of the diaper 1 than the rising lines 84L, 84R.

[0029] The side sheets 8L, 8R are doubled by folding back a single sheet at the inner end (free end 82LA, 82RA side) in the width direction, so that the sheets are laminated in the thickness direction. The elastic members 8EL, 8ER are sandwiched between the double side sheets 8L, 8R. Non-adhesive regions 85L, 85R, 86L, ​​86R in which the double side sheets 8L, 8R are not adhered to each other are provided on the end side of the longitudinal direction of the diaper 1 from the stretchable regions where the elastic members 8EL, 8ER stretch. The non-adhesive regions 85L, 85R are provided in the rear body region 1R, and the non-adhesive regions 86L, ​​86R are provided in the front body region 1F. By providing the non-adhesive regions 85L, 85R, 86L, ​​and 86R on the extensions of the stretched regions of the elastic members 8EL and 8ER, the non-adhesive regions 82L and 82R in the stretched regions tend to rise toward the skin side, making it easier to pinch the free ends 82LA and 82RA with the fingers. This allows the user to widen the gap between the non-adhesive regions 82L and 82R and the top sheet 7, and to insert an absorbent pad (not shown) between the non-adhesive regions 82L and 82R and the top sheet 7. The side sheets 8L and 8R may be doubled by laminating two separate sheets.

[0030] Fig. 5 is a plan view showing the discharged liquid inlet 15 and the discharged liquid holding area 16 provided in the diaper 1 according to the embodiment. Fig. 6 is an enlarged view of the side sheets 8L, 8R in the cross-sectional view shown in Fig. 3. Note that some members are omitted from Figs. 5 and 6 for the sake of explanation. As described above, the side sheets 8L, 8R are laminated in the thickness direction. The elastic members 8EL, 8ER are sandwiched between the skin-facing side sheets 8LA, 8RA (an example of the "first water-impermeable sheet" in this application) and the non-skin-facing side sheets 8LB, 8RB (an example of the "second water-permeable sheet" in this application).

[0031] The side sheets 8LB, 8RB extend further toward the top sheet 7 than the elastic members 8EL, 8ER arranged on the rising lines 84L, 84R side. The side sheets 8LB, 8RB are not joined to the top sheet 7. In this manner, the side sheets 8LB, 8RB suppress the prevention of the discharged liquid discharged by the wearer from flowing into the discharged liquid inflow sections 15 provided in the region where the elastic members 8EL, 8ER on the rising lines 84L, 84R side and the side sheets 8LB, 8RB are bonded. Therefore, the discharged liquid of the wearer flows into the discharged liquid holding region 16 provided between the side sheets 8LA, 8RA and the side sheets 8LB, 8RB.

[0032] The diaper 1 has a plurality of discharged liquid inflow sections 15 provided in the region where the elastic members 8EL, 8ER and the side sheets 8LB, 8RB on the side of the rising lines 84L, 84R are bonded. The discharged liquid inflow sections 15 allow discharged liquid discharged by the wearer to flow into the discharged liquid holding region 16. By providing the discharged liquid inflow sections 15 in the stretchable regions of the elastic members 8EL, 8ER, the elastic members 8EL, 8ER contract, widening the discharged liquid inflow sections 15 and facilitating the inflow of the discharged liquid. Note that the side sheets 8LA, 8RA and the side sheets 8LB, 8RB on the side of the rising lines 84L, 84R from the discharged liquid inflow sections 15 are not bonded to each other.

[0033] The discharged liquid inlet portion 15 may be an opening that is opened like an inlet into which discharged liquid discharged by the wearer flows, and is formed by the adhesive strength between the side sheets 8L, 8R and the elastic members 8EL, 8ER on the inner side in the width direction. Alternatively, the side sheets 8L, 8R and the elastic members 8EL, 8ER on the outer sides in the width direction may be weakly bonded to each other, or a combination of these may be used.

[0034] The openings are arranged spaced apart in the longitudinal direction of the side sheets 8L, 8R in the area where the side sheets 8L, 8R and the elastic members 8EL, 8ER on the upright lines 84L, 84R are bonded, and are areas where the side sheets 8LA, 8RA and the side sheets 8LB, 8RB are not bonded.

[0035] The weakly bonded portions are regions where the adhesive strength between the side sheets 8L, 8R and the elastic members 8EL, 8ER on the side of the upright lines 84L, 84R is weaker than the adhesive strength between the side sheets 8L, 8R and the elastic members 8EL, 8ER on the side of the free ends 82LA, 82RA, and where the weakly bonded portions can be peeled off. The weakly bonded portions may be peeled off during the putting on operation to allow the discharged liquid to easily flow into the discharged liquid holding region 16. It is not necessary to peel off the weakly bonded portions during the putting on operation, and the discharged liquid can flow into the discharged liquid holding region 16 by peeling off the weakly bonded portions due to the wearer's movement while the wearer is wearing the diaper.

[0036] The multiple discharged liquid inflow sections 15 are disposed spaced apart from one another in the longitudinal direction of the diaper 1. Since the multiple discharged liquid inflow sections 15 are spaced apart from one another, the top sheet 7 side is not entirely open, and discharged liquid can be retained in the spaces formed between the side sheets 8LA, 8RA and the side sheets 8LB, 8RB.

[0037] In addition, the side sheets 8LB, 8RB do not extend to the joining regions 81L, 81R. Since the side sheets 8LB, 8RB do not extend to the joining regions 81L, 81R, the side sheets 8LB, 8RB are non-permeable, and therefore do not prevent the discharged liquid discharged from the wearer from flowing into the discharged liquid inflow portion 15.

[0038] The diaper 1 includes an excreted liquid holding area 16 disposed between the side sheets 8LA, 8RA and the side sheets 8LB, 8RB, between the elastic members 8EL, 8ER on the side of the rising lines 84L, 84R and the elastic members 8EL, 8ER on the side of the free ends 82LA, 82RA, and extending in the longitudinal direction of the diaper 1. The excreted liquid holding area 16 may be formed by a non-adhesive portion where the side sheets 8LA, 8RA and the side sheets 8LB, 8RB are not bonded, or may be formed by releasing a temporary adhesive portion where the side sheets 8LA, 8RA and the side sheets 8LB, 8RB are temporarily bonded. Temporary adhesion refers to a state where the materials bonded to each other are bonded to such an extent that they can be peeled off without breaking each other. Since the temporary adhesive portion is formed by temporary adhesion, the excreted liquid holding area 16 can be easily formed by releasing the temporary adhesion during the wearing operation, and the excreted liquid can be held.

[0039] The three-dimensional gathers 3L, 3R close the gap between the top sheet 7 and the wearer's skin, preventing discharged liquid from leaking to the outside. However, when the wearer is in a lateral position, the top sheet 7 moves in the width direction, and the amount of discharged liquid that reaches the three-dimensional gathers 3L, 3R increases. Since the three-dimensional gathers 3L, 3R do not have an absorbent body 6, there is a risk that the discharged liquid may leak out depending on the amount of discharged liquid. In addition, the time that the discharged liquid contacts the wearer's skin increases, which may cause rough skin. Therefore, by providing the discharged liquid retention region 16, the discharged liquid that reaches the three-dimensional gathers 3L, 3R in the lateral position can be temporarily retained in the discharged liquid retention region 16.

[0040] The excreted liquid retention region 16 extends in the longitudinal direction of the diaper 1. The crotch region 1B of the diaper 1 corresponds to the urethral opening and anus of the wearer, and excreted liquid discharged by the wearer flows into and concentrates in the crotch region 1B. If the excreted liquid retention region 16 extends in the longitudinal direction of the diaper 1, the excreted liquid can be moved in the longitudinal direction of the diaper 1, and the amount of excreted liquid that can be retained can be increased. By increasing the amount of excreted liquid that can be retained, the excreted liquid retention region 16 can adequately retain the excreted liquid. Since the discharged liquid can be retained, leakage of the discharged liquid from the diaper 1 can be suppressed.

[0041] Non-adhesive regions 85L, 85R, 86L, ​​and 86R are disposed at both longitudinal ends of the discharged liquid holding region 16. When body pressure is applied to the discharged liquid holding region 16 due to lying on one's side, etc., there is a possibility that the discharged liquid may pass through the side sheets 8L and 8R and leak out of the diaper 1. For this reason, it is necessary to move the discharged liquid that has flowed into the discharged liquid holding region 16 to the absorbent body 6. By providing the non-adhesive regions 85L, 85R, 86L, ​​and 86R at both longitudinal ends of the discharged liquid holding region 16, the discharged liquid that has flowed into the discharged liquid holding region 16 can be moved from the non-adhesive regions 85L, 85R, 86L, ​​and 86R through the top sheet 7 to the absorbent body 6, and can be absorbed and held by the entire absorbent body 6. In particular, when changing posture from a lateral position to a supine position, the side sheets 8L, 8R rise vertically relative to the top sheet 7, and discharged liquid flows out from the non-adhesive areas 85L, 85R, 86L, ​​86R toward the top sheet 7, making it easier for the liquid to be absorbed by the absorbent body 6.

[0042] The absorbent body 6 extends on the non-skin surface of the top sheet 7 on both widthwise sides of the non-adhesive regions 85L, 85R, 86L, ​​and 86R. Therefore, the excreted liquid that flows into the excreted liquid holding region 16 flows out from the non-adhesive regions 85L, 85R, 86L, ​​and 86R toward the top sheet 7, and is absorbed and held by the absorbent body 6 provided on the non-skin surface of the top sheet 7 on both widthwise sides of the non-adhesive regions 85L, 85R, 86L, ​​and 86R.

[0043] The absorbent body 6 extends to the widthwise outer side of the standing lines 84L, 84R located on the widthwise outer side of the non-adhesive regions 85L, 85R, 86L, ​​86R. By extending the absorbent body 6 to the standing lines 84L, 84R located on the widthwise outer side of the non-adhesive regions 85L, 85R, 86L, ​​86R, when the side sheets 8L, 8R are in an upright state, discharged liquid flowing out from the non-adhesive regions 85L, 85R, 86L, ​​86R along the side sheets 8L, 8R is absorbed and held by the absorbent body 6 provided on the non-skin facing side of the standing lines 84L, 84R.

[0044] The diaper 1 also has leakage barrier portions on the longitudinal outer sides of the non-adhesive regions 85L, 85R, 86L, ​​and 86R. The leakage barrier portions are retained in the discharged liquid retention region 16, and prevent discharged liquid that has migrated in the longitudinal direction of the diaper 1 from leaking out from the front body region 1F or the back body region 1R. The leakage barrier portions may be side sheets 8C or folded portions.

[0045] The side sheet 8C is disposed between the side sheets 8L, 8R and the top sheet 7. The side sheet 8C is a liquid-impermeable sheet provided on the rear body region 1R side of the top sheet 7. The side sheet 8C is folded back at a fold line along the width direction of the diaper 1 to form a double layer, with a gap formed between the front side and the top sheet 7 and the rear side joined to the top sheet 7. An elastic member 8EC is disposed between the double side sheets 8C in a stretched state along the width direction. Rubber thread is used for the elastic member 8EC. The front side of the side sheet 8C is pulled in the width direction by the core contraction force of the elastic member 8EC and rises from the top sheet 7 to the skin-facing side.

[0046] The side sheet 8C has, on the skin-facing side of the top sheet 7, a bonded region 81C that is bonded to the top sheet 7 relatively outside when viewed in the longitudinal direction of the diaper 1, and a non-bonded region 82C that is not bonded to the top sheet 7 and is located inside the bonded region 81C in the longitudinal direction of the diaper. The side sheet 8C is bonded to the top sheet 7 at the bonded region 81C. A hot melt adhesive is applied to the top sheet 7 that is disposed on the non-skin-facing side of the side sheet 8C, and the side sheet 8C is laminated thereon to form the bonded region 81C.

[0047] In the non-bonded region 82C disposed longitudinally inward of the bonded region 81C, the side sheet 8C and the top sheet 7 are not bonded. By having the bonded region 81C and the non-bonded region 82C, the rear side of the absorbent pad can be inserted between the top sheet 7 and the side sheet 8C. and an absorbent pad can be fixed.

[0048] The cover sheet 4 is provided with elastic members 4C that prevent the gap between the diaper 1 and the wearer's crotch from widening, and are bent inward in the longitudinal center of the diaper 1. The elastic members 4C are arranged in curved lines extending outward in the width direction at both longitudinal end sides. An appropriate number of elastic members 4C (three in this embodiment) are provided depending on the elasticity (stretching force) required for the design of the diaper 1.

[0049] Moreover, the elastic members 4C do not extend inward in the width direction behind the longitudinal center of the diaper 1. The area behind the longitudinal center of the diaper 1 is a buttocks-corresponding region (not shown) that corresponds to the buttocks of the wearer, and the elastic members 4C extend to avoid the buttocks-corresponding region. If wrinkles are formed in the top sheet 7 in the buttocks-corresponding region of the diaper 1, the unevenness caused by the wrinkles will come into contact with the wearer's skin, reducing the comfort of wearing the diaper 1. By extending the elastic members 4C to avoid the buttocks-corresponding region, the diaper 1 can prevent unnecessary wrinkles from forming in the buttocks-corresponding region. This improves the comfort of wearing the diaper 1 and eliminates the need to smooth out wrinkles in the buttocks-corresponding region when wearing the diaper 1. Furthermore, the diaper 1 prevents unwanted wrinkles from being formed in the area corresponding to the buttocks, thereby preventing bedsores caused by wrinkles coming into contact with the skin.

[0050] The elastic member 9ER for forming the waist gather 3W is provided between the double side sheets 8C at a position further back than the end of the absorbent body 6. The elastic member 9ER is provided with its longitudinal direction, which is the stretch direction, oriented in the left-right direction of the diaper 1. When the tapes 2L1, 2L2, 2R1, 2R2 provided on both the left and right sides of the elastic member 9ER are attached to the front patch 2F on the abdominal side of the wearer, the elastic member 9ER exerts a stretching force to bring the diaper 1 into close contact with the wearer and prevent the formation of a gap between the diaper 1 and the abdominal circumference of the wearer. The elastic member 9ER may be provided between the top sheet 7 and the back sheet 5.

[0051] In addition, the diaper 1 has elastic members 4SL, 4SR (one example of the "first elastic member" in the present application) for forming the leg gathers 3AL, 3AR described above, which are provided between the cover sheet 4 and the back sheet 5 so as to stretch in the longitudinal direction of the diaper 1. The elastic members 4SL, 4SR are provided in an appropriate number (three in this embodiment) determined according to the elastic force (stretching force) required in the design of the diaper 1. As shown in FIG. 4, the leg gathers 3AL, 3AR are arranged at both ends in the width direction of the crotch region 1B, including the leg surrounding portions 10L, 10R, which are portions that follow the circumference of the legs of the wearer. The leg surrounding portions 10L, 10R are arranged at both ends in the width direction of the crotch region 1B. The elastic members 4SL, 4SR are bonded to the leg surrounding portions 10L, 10R in a stretched state so as to extend in the longitudinal direction, causing the leg surrounding portions 10L, 10R to stretch in the longitudinal direction. The stretchable regions of the elastic members 4SL, 4SR become the leg gathers 3AL, 3AR.

[0052] The leg gathers 3AL, 3AR are formed by laminating the side sheets 8L, 8R, the back sheet 5, and the cover sheet 4 on both the left and right sides of the diaper 1. Therefore, the widthwise outer ends of the leg gathers 3AL, 3AR are formed by laminating the side sheets 8L, 8R, the back sheet 5, and the cover sheet 4. Since the diaper 1 of this embodiment has a constriction in the crotch region 1B, it is necessary to cut the crotch region 1B in a curved shape during manufacturing. When cutting in a curved shape, the diaper 1 is likely to become twisted, but by bonding multiple sheets and increasing the rigidity, it is possible to suppress the twisting of the diaper 1 during cutting. Note that the widthwise outer ends of the leg gathers 3AL, 3AR may be laminated with the side sheets 8L, 8R and at least one of the back sheet 5 and the cover sheet 4.

[0053] The diaper 1 also includes a fold 11 extending in the longitudinal direction of the diaper 1, widthwise outward of the elastic members 4SL, 4SR. The fold 11 is a fold line along which the diaper 1 is folded so that the non-skin-facing side of the diaper 1 on the widthwise outer side of the fold 11 overlaps with the non-skin-facing side of the diaper 1. When the diaper 1 is worn, the widthwise outer end of the diaper 1 is folded toward the non-skin-facing side by the fold 11 in the crotch region 1B. This prevents the widthwise outer end of the diaper 1 from contacting the wearer's skin or from digging into the wearer's skin.

[0054] In addition, the leg gathers 3AL, 3AR have the side sheets 8L, 8R extending outward in the width direction from the imaginary straight line 14 connecting both longitudinal ends of the elastic members 4SL, 4SR. The diaper 1 is usually stretched in the longitudinal direction when worn. By stretching the diaper 1 in the longitudinal direction, both ends of the elastic members 4SL, 4SR expand and contract. At this time, the widthwise outer side of the imaginary straight line 14 connecting both longitudinal ends of the elastic members 4SL, 4SR is less rigid than the inner side, and therefore is more likely to bend. Therefore, the diaper 1 is more likely to bend along the folded portion 11 so that the non-skin-facing side on the widthwise outer side of the folded portion 11 overlaps with the non-skin-facing side of the diaper 1. The folded portion 11 is preferably located on the imaginary straight line 14 connecting both longitudinal ends of the elastic members 4SL, 4SR, or within a range of 10 mm outward in the width direction. By positioning the folding portion 11 on the imaginary straight line 14 connecting both longitudinal ends of the elastic members 4SL, 4SR, or within a range of 10 mm outward in the width direction, the elastic force of the elastic members 4SL, 4SR is easily transmitted to the folding portion 11, and a bend is easily formed along the folding portion 11.

[0055] Furthermore, the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the diaper 1 is preferably 20 mm or more, and more preferably 35 mm or more. By making the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the diaper 1 20 mm or more, it is possible to prevent the folds from not being formed due to manufacturing errors such as misalignment during the manufacture of the diaper 1. By making the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the diaper 1 35 mm or more, it is easy to maintain the widthwise outer ends of the diaper 1 folded by the folding portion 11.

[0056] In addition, in the central region of the diaper 1 divided into three equal parts in the longitudinal direction, the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the side sheets 8L, 8R is shorter at the front side than at the rear side. The crotch region 1B of the diaper 1 and its vicinity are sandwiched between the wearer's legs when worn, so it is preferable that the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the side sheets 8L, 8R is short. However, if the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the side sheets 8L, 8R is short, it is difficult to form a fold at the folding portion 11. On the other hand, the rear body region 1R side is easily folded at the folding portion 11 because the width of the side sheets 8L, 8R can be expanded so as to fit the wearer's skin. Therefore, in the central region of the diaper 1 divided into three equal parts in the longitudinal direction, the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the side sheets 8L, 8R is longer at the rear side, and a fold is formed at the folding portion 11. The bending force that creates the fold on the rear body region 1R side is then transmitted to the crotch region 1B side, and the front side is also folded along the fold 11, so that the entire central region of the diaper 1, which is divided into three equal parts in the longitudinal direction, is folded along the fold 11.

[0057] Furthermore, both longitudinal ends of the elastic members 4SL, 4SR extend in the direction in which the front patch 2F or tapes 2L1, 2L2, 2R1, 2R2 are stretched during wearing, and the front patch 2F or tapes 2L1, 2L2, 2R1, 2R2 are positioned on the extension line of the extending direction of the elastic members 4SL, 4SR.

[0058] The elastic members 4SL, 4SR may overlap the front patch 2F or the tapes 2L1, 2L2, 2R1, 2R2, and the distance between the elastic members 4SL, 4SR and the front patch 2F and between the elastic members 4SL, 4SR and the tapes 2L1, 2L2, 2R1, 2R2 is 40 mm or less. By positioning the tapes 2L1, 2L2, 2R1, and 2R2 as described above, the force of pinching and stretching the front patch 2F and the tapes 2L1, 2L2, 2R1, and 2R2 during the putting on operation is transmitted to the elastic members 4SL and 4SR. Therefore, the elastic members 4SL and 4SR stretch and are easily folded along the folding portion 11.

[0059] As described above, the widthwise outer end portions of the side sheets 8L and 8R are cut in a state where they are overlapped with the cover sheet 4 and the back sheet 5 in the thickness direction. Therefore, the cut areas of the widthwise ends of the side sheets 8L and 8R have sharp shapes, and when worn, there is a risk of the comfort of wearing being reduced by digging into or abutting the wearer's skin. In particular, in the diaper 1 having a constriction in the crotch region 1B, such as the diaper 1 in this embodiment, the widthwise outer end portions of the diaper 1 are cut in a curved shape in the crotch region 1B. In this case, in order to increase the cutting efficiency, it is preferable to increase the rigidity of the cut portion, and the rigidity is increased by bonding the sheets. Therefore, there is a possibility that the widthwise outer end portions of the side sheets having increased rigidity will dig into or abut the wearer's skin, thereby reducing the comfort of wearing.

[0060] On the other hand, the diaper 1 of this embodiment has a fold 11 located within a range of 10 mm outward in the width direction from an imaginary straight line 14 connecting both longitudinal ends of the stretchable regions of the elastic members 4SL, 4SR. The diaper 1 is folded in the crotch region 1B along the fold 11 such that the non-skin-facing side of the widthwise outer end of the diaper 1 overlaps the non-skin-facing side of the diaper 1, thereby preventing the diaper 1 from contacting or digging into the wearer's skin and improving the fit.

[0061] Fig. 7 is a plan view of leg gathers 3AL folded along folding portion 11 as viewed from the cover sheet 4 side. For ease of explanation, some components are omitted from Fig. 7. Since the dimensions of leg gathers 3AR are the same as those of leg gathers 3AL, the following explanation focuses on leg gathers 3AL. The outer widthwise end of leg gathers 3AL is folded by folding portion 11 toward the non-skin facing side.

[0062] The folded portion 11 is located within a range of 10 mm widthwise outward from an imaginary straight line 14 connecting both longitudinal ends of the stretchable region of the elastic member 4SL, and extends in the longitudinal direction. The folded portion 11 is formed by folding the non-skin-facing side (cover sheet 4) of the widthwise outer end of the diaper 1 in the crotch region 1B so that it overlaps the cover sheet 4, thereby preventing the widthwise outer end of the diaper 1 from contacting the wearer and digging into the wearer. The folded portion 11 is formed when the diaper 1 is packed.

[0063] A method for manufacturing the diaper 1 according to this embodiment will be described with reference to Fig. 8. Fig. 8 is a flow chart of the method for manufacturing the diaper 1 according to this embodiment. First, in a first folding step, the widthwise outer end portions of the diaper 1 are folded inward in the widthwise direction of the diaper 1 along the fold lines extending in the longitudinal direction on both widthwise sides of the diaper 1 so that the skin-facing sides of the diaper 1 are in contact with each other (step S101). Thereafter, in a second folding step, the widthwise outer end portions of the diaper 1 are folded toward the non-skin-facing side along the folds 11 extending in the longitudinal direction of the diaper 1, on the widthwise outer side of the region where the elastic members 4SL, 4SR are attached (step S102). In detail, when the diaper 1 is folded in the first folding process, the folding portion 11, which is located widthwise inside the elastic members 4SL, 4SR, folds the folded diaper 1 so that the non-skin-facing side of the diaper 1 widthwise inside the folding portion 11 contacts the non-skin-facing side of the diaper 1 widthwise outside the folding portion 11 (step S102).

[0064] Next, the manufacturing process of the diaper 1 according to this embodiment will be described in more detail with reference to Fig. 9. Fig. 9 is a diagram showing an example of folding the diaper 1 according to this embodiment in a distributed state. Before being worn, the diaper 1 is in the form shown in Fig. 4, but in its product shipping state and distributed state, it is folded. More specifically, the diaper 1 in a distributed state is folded in a first folding step (step S101) such that the diaper 1 is folded at its widthwise outer side as shown in Fig. 9(A). The diaper 1 is folded from the non-skin-facing side to the skin-facing side along folding lines 13L, 13R extending in the longitudinal direction of the diaper 1. Next, in a second folding process (step S102), the diaper 1 is folded by folding portion 11 so that the non-skin-facing sides overlap each other, as shown in Fig. 9(B). Thereafter, the diaper 1 is packed in a folded longitudinal state.

[0065] Here, in the crotch region 1B of the diaper 1, if the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the diaper 1 is 20 mm or more at the narrowest point, it is possible to prevent the fold from not being formed due to manufacturing errors such as misalignment, even when the diaper 1 is folded along the fold 11 as shown in Figure 9 (B).

[0066] Thus, the diaper 1 of this embodiment has a fold 11 located within a range of 10 mm outward in the width direction from an imaginary straight line 14 connecting both longitudinal ends of the stretchable regions of the elastic members 4SL, 4SR. In the crotch region 1B, the diaper 1 is folded along the fold 11 such that the non-skin-facing side of the widthwise outer end of the diaper 1 overlaps the non-skin-facing side of the diaper 1. Thus, when the diaper 1 is worn, the widthwise outer end of the diaper 1 in the crotch region 1B is prevented from digging into or coming into contact with the wearer's skin, improving the fit.

[0067] <Other embodiments> Although the present embodiment has been described above, the contents of the present invention are not limited to the above embodiment. In the above embodiment, a tape-type disposable diaper has been described as an example, but the present invention is not limited to this, and the present invention can also be applied to absorbent articles such as pants-type disposable diapers.

[0068] In this embodiment, the elastic members 4SL, 4SR are curved inward in the width direction of the diaper 1, but the elastic members 4SL, 4SR do not have to be curved inward in the width direction and may be straight or curved outward in the width direction.

[0069] In the above embodiment, the top sheet 7 forming the skin-facing portion and the side sheets 8L, 8R are separate sheets, but this is not limited to this. For example, the side sheets may be formed by folding back the top sheet 7 at the widthwise end sides.

[0070] The embodiments and modifications thereof disclosed above can be combined with each other. [Explanation of symbols]

[0071] 1. Diapers 1B...Inseam area 1F: Front body area 1R: Back body area 2F: Front patch 2L1, 2L2, 2R1, 2R2... Tape 3AL, 3AR Leg Gathers 3L, 3R: 3D gathers 3W: Gathered waist 4. Cover sheet 4KL, 4KR... Constriction 4C, 4SL, 4SR, 8EL, 8ER, 8EC, 9ER Elastic material 5. Back sheet 6. Absorber 6C··Absorbent core 6A··Upper layer absorbent mat 6B··Lower layer absorbent mat 6W··Core wrap sheet 6H··Slit 7. Top sheet 8L, 8LA, 8LB, 8R, 8RA, 8RB, 8C··Side seats 81L, 81R, 81C...Join area 82L, 82R, 82C...Non-bonded area 82LA,82RA·Free end 84L, 84R, 84C...Standing line 85L,85R,86L,86R...Non-adhesive area 90L,90R,91L,91R・Fixed part 10L, 10R: Leg area 11 Folding section 13L, 13R... Folding lines 14 Imaginary line 15...Effluent inlet 16...Effluent retention area

Claims

1. A length along a longitudinal direction corresponding to the front-to-back direction of the wearer; A length along a width direction perpendicular to the longitudinal direction; an absorbent body that absorbs liquid discharged by the wearer; A pair of side sheets are arranged on both outer sides of the absorbent body in the width direction and have first elastic members attached in a stretched state in the longitudinal direction; and a folding portion extending in the longitudinal direction on the outer side in the width direction of the region to which the first elastic member is attached, and folding the outer end portions in the width direction so that the non-skin facing sides are in contact with each other. Absorbent articles.

2. The side sheet has at least two layers of sheets laminated in the thickness direction. The absorbent article of claim 1.

3. a second elastic member is disposed between the two layers of sheets, and a discharged liquid inlet portion is disposed in an area where the second elastic member is disposed and through which the discharged liquid flows; a discharged liquid holding area extending inward in the width direction from the second elastic member, forming a space between the two layers of sheets, and holding the discharged liquid that has flowed in from the discharged liquid inlet portion; Equipped with The absorbent article of claim 2.

4. The first elastic member extends in the longitudinal direction, The side sheet extends outward in the width direction from a virtual line connecting both ends of the longitudinal direction of the region in which the first elastic member stretches. An absorbent article according to any one of claims 1 to 3.

5. The folded portion is located near a virtual straight line connecting both ends of the longitudinal direction of the region in which the first elastic member stretches. An absorbent article according to any one of claims 1 to 3.

6. The folded portion is located within a range of 10 mm outward in the width direction from a virtual straight line connecting both ends of the longitudinal direction of the region in which the first elastic member stretches. An absorbent article according to any one of claims 1 to 3.

7. In a central region among three equal parts obtained by dividing the absorbent article in the longitudinal direction, a distance in the width direction between the first elastic member and the side sheet is shorter on the wearer's abdominal side than on the wearer's back side. An absorbent article according to any one of claims 1 to 3.

8. A tape extending outward in the width direction on the wearer's abdominal side or the wearer's back side and having an adhesive portion disposed on a skin surface side; The garment further includes an attachment portion provided on the other exterior surface of the wearer's abdomen side or the wearer's back side, to which the attachment portion can be attached; The first elastic member is located near the tape and the attachment portion. An absorbent article according to any one of claims 1 to 3.

9. The first elastic member is spaced 40 mm or less from the tape and the attachment portion in the width direction. The absorbent article of claim 8.

10. the first elastic member extends in a direction stretched by the tape or the attached portion when the wearer is wearing the absorbent article, The tape or the attached portion is located on an extension line of the first elastic member in an extending direction. The absorbent article of claim 8.

11. The absorbent article further includes a fold line extending in the longitudinal direction on both sides in the width direction, the fold line folding the outer end portions in the width direction of the absorbent article inward in the width direction so that the skin-facing sides of the absorbent article are in contact with each other, The folded portion is located on the inner side of the first elastic member in the width direction when the outer end of the side sheet is folded along the fold line, and is folded so that the non-skin-facing side on the inner side of the folded portion in the width direction is in contact with the non-skin-facing side on the outer side of the folded portion in the width direction. An absorbent article according to any one of claims 1 to 3.

12. A method for manufacturing an absorbent article comprising: an absorbent body having a length along a longitudinal direction corresponding to a front-rear direction of a wearer; a length along a width direction perpendicular to the longitudinal direction; an absorbent body for absorbing liquid; and a side sheet having a first elastic member that is disposed on an outer side of the absorbent body in the width direction and attached in a stretched state in the longitudinal direction, a first folding step of folding the outer end portions of the absorbent article inward in the width direction along fold lines extending in the longitudinal direction on both sides of the width direction so that the skin-facing sides of the absorbent article are in contact with each other; a second folding step in which a folding portion that extends in the longitudinal direction outside the width direction from a region to which the first elastic member is attached and that folds the widthwise outer end portion to the non-skin-facing side is located inside the first elastic member in the width direction in the first folding step, and the folded absorbent article is folded so that the non-skin-facing side on the widthwise inner side of the folding portion is in contact with the non-skin-facing side on the widthwise outer side of the folding portion. A method for manufacturing an absorbent article.

Citation Information

Patent Citations

  • Tape type disposable diaper

    JP2018068464A