Absorbent article

Abstract

To provide an absorbent article capable of preventing positional deviation of an absorbent pad to be used together.SOLUTION: An absorbent article includes: a length along a longitudinal direction corresponding to a front-back direction of a wearer; a length along a width direction orthogonal to the longitudinal direction; a water permeable skin face part arranged on a skin surface side of the wearer; and a pad fixing part composed of sheets and having a joined part joined to the skin surface part on the outside in the width direction or the longitudinal direction on the skin surface side of the skin surface part, a non-joined part that is not joined to the skin surface part inside the joined part, and a temporarily bonded part temporarily bonded to the skin surface part in at least part of the non-joined part, and configured for fixing the absorbent pad when part of the absorbent pad used together with the absorbent article is inserted between itself and the skin surface part.SELECTED DRAWING: Figure 5

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] Generally, disposable diapers are used in combination with an absorbent pad placed inside the diaper. Liquids discharged by the wearer of the diaper are absorbed and retained in the absorbent pad. If the wearer is a care recipient who wears diapers on a daily basis, the caregiver's burden of changing diapers can be reduced by frequently changing the absorbent pad and changing the disposable diaper every few days (e.g., every three days).

[0005] Disposable diapers are thus used in conjunction with absorbent pads, but if the absorbent pad becomes misaligned within the diaper, the absorbent pad will not be able to properly absorb discharged liquids such as urine, which may leak to the outside.

[0006] An object of the present invention is to provide an absorbent article capable of preventing displacement of an absorbent pad used in combination therewith. [Means for solving the problem]

[0007] 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; A water-permeable skin-facing portion disposed on the skin-facing side of the wearer; a pad fixing portion which is made of a sheet and has a joining portion which joins to the skin-facing portion on the outer side in the width direction or the longitudinal direction on the skin-facing side of the skin-facing portion, a non-joining portion which is not joined to the skin-facing portion on the inner side of the joining portion, and a temporary adhesion portion which temporarily adheres to the skin-facing portion in at least a part of the non-joining portion, and which fixes the absorbent pad by inserting a part of an absorbent pad used together with the absorbent article between the pad fixing portion and the skin-facing portion; Equipped with. Effect of the Invention

[0008] According to the present invention, it is possible to prevent the absorbent pad used in combination from shifting out of position. [Brief description of the drawings]

[0009] [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 when not being worn, taken along the width direction at the center in the longitudinal direction. [Figure 4] FIG. 4 is a plan view of the diaper according to the embodiment in a stretched state, as viewed from the skin-facing side. [Diagram 5] FIG. 5 is a plan view of the diaper according to the embodiment in a stretched state, as viewed from the skin-facing side. [Figure 6] FIG. 6 is an enlarged view showing a part of the pad fixing portion of the diaper according to the embodiment. [Figure 7] FIG. 7 is a plan view of the diaper according to the embodiment in a stretched state, as viewed from the skin-facing side. [Figure 8] FIG. 8 is an enlarged view showing a part of the pad fixing portion of the diaper according to the embodiment. [Figure 9] FIG. 9 is a plan view of the diaper according to the embodiment in a stretched state, as viewed from the skin-facing side. [Figure 10]FIG. 10 is a plan view of the diaper according to the first modification of the embodiment in a stretched state, as viewed from the skin-facing side. [Figure 11] FIG. 11 is a plan view of a diaper according to the second modification of the embodiment in a stretched state, as viewed from the skin-facing side. [Figure 12] FIG. 12 is a plan view of a diaper according to the third modification of the embodiment in a stretched state, as viewed from the skin-facing side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] 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.

[0011] <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 arranged opposite the wearer's abdomen and the rear body arranged opposite the wearer's back. Between the front body (one side in the longitudinal direction) and the rear body (the other side in the longitudinal direction) (the center in the longitudinal direction), a crotch portion arranged under the wearer's crotch (opposed to 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-back direction of a wearer and a length along a width direction perpendicular to the longitudinal direction, and is worn under the crotch of a wearer. In addition, terms related to directions used in this application mean directions corresponding to the front-to-back, left-to-right and right-to-left directions of a wearer when the diaper is worn. For example, 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.

[0012] FIG. 1 is a perspective view of a diaper 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 front patches 2F, which have hooks on the wearer's skin side and are provided on the front body region 1F and have loop processing on the non-skin side, and tapes 2L1, 2L2, 2R1, and 2R2 that can be attached by mechanical fasteners. 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 where it surrounds 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. In addition, the tapes 2L The non-skin facing sides of 1, 2L2 and tapes 2R1, 2R2 are looped in the same manner as the non-skin facing side of front patch 2F, so that tapes 2L1, 2L2, 2R1, 2R2 can be overlapped on front patch 2F.

[0013] In the diaper 1, an absorbent 6 capable of absorbing and retaining liquid is disposed mainly around the crotch region 1B. In addition, in order to prevent the formation of gaps between the diaper 1 and the wearer's skin that could serve as a liquid outflow path, the diaper 1 is provided with leg gathers 3AL, 3AR in areas along the wearer's leg circumference (thighs) and with a waist gather 3R in areas along the wearer's abdominal circumference. The leg gathers 3AL, 3AR and the waist gather 3R are brought into close contact with the wearer's skin by the elastic force of the elastic member. The elastic member may be, for example, a thread-like or strip-like rubber.

[0014] FIG. 2 is an exploded perspective view of a diaper according to an embodiment. FIG. 3 is a cross-sectional view of the diaper 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 in an extended state, viewed from the skin-facing side. The diaper 1 has a cover sheet 4 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, a nonwoven fabric made of a liquid-impermeable thermoplastic resin can be used as the material for the cover sheet 4 in order to suppress leakage of excrement. Examples of liquid-impermeable thermoplastic resins include polyethylene (PE) and polypropylene (PP). 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.

[0015] The diaper 1 has a back sheet 5 (non-skin-facing sheet), an absorbent 6, and a top sheet 7 (an example of the "skin-facing portion" in this application) 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 of the absorbent 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.

[0016] 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.

[0017] The back sheet 5, the absorbent body 6, and the top sheet 7 all extend from the front body region 1F to the rear body region 1R. Thus, the back sheet 5, the absorbent body 6, and the top sheet 7 are laminated together. When the wearer's genitals are covered with the cover sheet 4, both longitudinal ends of the back sheet 5, absorbent body 6, and top sheet 7 are located on the wearer's ventral and dorsal sides. In other words, the wearer's genitals are covered by the absorbent body 6 from the ventral to dorsal sides. Therefore, whether the wearer is lying in a supine or prone position, excreted liquid comes into contact with the absorbent body 6 via the top sheet 7.

[0018] The diaper 1 is provided with elastic members 4SL, 4SR for forming the leg gathers 3AL, 3AR 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 (contractile 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 that 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, and 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, thereby stretching the leg surrounding portions 10L, 10R in the longitudinal direction. The stretchable regions of the elastic members 4SL, 4SR become the leg gathers 3AL, 3AR.

[0019] The diaper 1 also has elongated, strip-shaped pad position fixing sheets 8L, 8R. The absorbent pad is fixed by inserting both widthwise sides of the absorbent pad used with the diaper 1 between the pad position fixing sheets 8L, 8R and the top sheet 7. An example of the absorbent pad used with the diaper 1 is the absorbent article disclosed in JP 2016-140559 A. The pad position fixing sheets 8L, 8R are liquid-impermeable sheets provided on the long sides of the top sheet 7. The pad position fixing sheets 8L, 8R are disposed outside the center of the diaper 1 in the width direction. The pad position fixing sheets 8L, 8R are provided with constrictions 8KL, 8KR at the locations where the wearer's thighs are located (leg surrounding portions 10L, 10R shown in FIG. 4), similar to the cover sheet 4. Elastic members 8EL, 8ER (an example of the "elastic member" in this application) are arranged in a stretched state along the longitudinal direction of the pad position fixing sheets 8L, 8R. The pad position fixing sheets 8L, 8R are pulled in the longitudinal direction by the contractile force of the elastic members 8EL, 8ER and rise from the top sheet 7 to the skin-facing side. This makes it easier to insert an absorbent pad into the non-skin-facing side of the pad position fixing sheets 8L, 8R. One or more elastic members 8EL, 8ER (three in this embodiment) are provided depending on the required elastic force.

[0020] The diaper 1 also has a pad position fixing sheet 8C disposed between the pad position fixing sheets 8L, 8R and the top sheet 7. The rear side of an absorbent pad used in combination with the diaper 1 is inserted between the pad position fixing sheet 8C and the top sheet 7 to fix the absorbent pad. The pad position fixing sheet 8C is a liquid-impermeable sheet provided on the rear body region 1R side of the top sheet 7. The pad position fixing sheet 8C is folded back at a fold line along the width direction of the diaper 1 to form a double layer (an example of the "two-layer structure" referred to in this application), 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 (second elastic member) is disposed between the double pad position fixing sheets 8C in a stretched state along the width direction. Rubber thread is used for the elastic member 8EC. The front side of the pad position fixing sheet 8C is pulled in the width direction by the contraction force of the elastic member 8EC and rises from the top sheet 7 to the skin side. This makes it easier to insert the absorbent pad onto the non-skin facing side of the pad position fixing sheet 8C.

[0021] The cover sheet 4 is provided with an elastic member 4C (third elastic member) which prevents the gap between the diaper 1 and the wearer's crotch from widening and is bent inward in the longitudinal center of the diaper 1. The elastic member 4C is arranged in a curved shape extending outward in the width direction on both longitudinal end sides. The elastic member 4C is sprung in response to the elastic force (contractile force) required for the design of the diaper 1. An appropriate number of lines (three in this embodiment) is provided depending on the situation.

[0022] The elastic member 9ER for forming the waist gather 3R is provided between the double pad position fixing 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 contractile 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.

[0023] 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 is hourglass-shaped with a constriction 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 is rectangular when viewed from above. The lower absorbent mat 6B is centered on the center part of the absorbent body 6 in the width direction, and its total width is equal to or less than the constriction part of the upper absorbent mat 6A. That is, the lower absorbent mat 6B is laminated with the upper absorbent mat 6A so that it is entirely hidden by the upper absorbent mat 6A when viewed from the skin side.

[0024] 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.

[0025] 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 of synthetic fibers such as polyethylene, polypropylene, or polyethylene terephthalate that have been hydrophilized. 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.

[0026] 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.

[0027] 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, and thus 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. When the diaper 1 according to this embodiment is not used in combination with an absorbent pad, the absorbent body 6 absorbs and retains urine discharged by the wearer. The diaper 1 can diffuse urine along the slits 6H, so that the upper absorbent mat 6A and the lower absorbent mat 6B as a whole can absorb and retain urine.

[0028] 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.

[0029] As described above, the diaper 1 according to this embodiment is intended to be used in combination with an absorbent pad disposed on the wearer side. For this reason, the diaper 1 includes a pad fixing portion for fixing the absorbent pad. This pad fixing portion will be described with reference to Fig. 5. Fig. 5 is a plan view of the diaper 1 similar to Fig. 4. For the sake of explanation, the elastic members 4C, 4SL, 4SR and the slit 6H are omitted from Fig. 5 and subsequent figures.

[0030] An absorbent pad (not shown) is placed on the skin-facing portion formed of a water-permeable top sheet 7. The diaper 1 includes pad fixing portions 80L, 80R, 80C for fixing the absorbent pad placed on the skin-facing portion. The pad fixing portions 80L, 80R (an example of the "pad fixing portion" in this application) are formed by pad position fixing sheets 8L, 8R, and the absorbent pad is fixed by inserting both widthwise sides of the absorbent pad between the top sheet 7 and the pad position fixing sheets 8L, 8R. The pad fixing portions 80L, 80R have, on the skin-facing side of the top sheet 7, joining portions 81L, 81R (an example of the "joining portion" in this application) that join to the top sheet 7 on the outer side in the width direction of the diaper 1, and non-joining portions 82L, 82R (an example of the "non-joining portion" in this application) that are not joined to the top sheet 7 on the inner side in the width direction of the joining portions 81L, 81R (an example of the "non-joining portion" in this application). The pad position fixing sheets 8L, 8R are joined to the top sheet 7 at joints 81L, 81R, and on the outside of the top sheet 7, the pad position fixing sheets 8L, 8R are joined to the back sheet 5 arranged on the non-skin facing side. Hot melt adhesive is applied to the top sheet 7 and back sheet 5 arranged on the non-skin facing side of the pad position fixing sheets 8L, 8R, and the pad position fixing sheets 8L, 8R are laminated on top of that to form the joints 81L, 81R.

[0031] In the non-joined portions 82L, 82R that are located on the inside in the width direction of the joined portions 81L, 81R, the pad position fixing sheets 8L, 8R and the top sheet 7 are not joined. The pad fixing portions 80L, 80R have temporary adhesion portions 83L, 83R (first temporary adhesion portions) that are temporarily attached to the top sheet 7 in at least a part of the non-joined portions 82L, 82R. In FIG. 5, the non-joined portions 82L, 82R are shown shaded with diagonal lines, and the temporary adhesion portions 83L, 83R are provided in at least a part of the shaded area. Here, "temporarily bonded" refers to a state in which the temporarily bonded materials are bonded with an adhesive strength sufficient to allow the two materials to be peeled off without tearing or destroying the materials, such as the sheets of the diaper 1. "Joined" refers to a state in which the materials, such as the sheets of the diaper 1, are bonded with an adhesive strength sufficient to allow the two materials to be peeled off without tearing or destroying the materials, such as the sheets of the diaper 1. It refers to a state in which the two joined materials cannot be peeled off without breaking one of the materials. In this embodiment, the pad position fixing sheets 8L, 8R and the top sheet 7 can be peeled off at the temporary adhesion parts 83L, 83R without tearing them. Such temporary adhesion parts 83L, 83R are formed by applying a small amount of hot melt adhesive between the pad position fixing sheets 8L, 8R and the top sheet 7. In addition, for example, the top sheet 7 may be bonded to a material arranged on the non-skin side (for example, the core wrap sheet 6W, see FIG. 3) with a hot melt adhesive, and the hot melt adhesive may penetrate a small amount into the skin side of the top sheet 7, and the top sheet 7 and the pad position fixing sheets 8L, 8R may be bonded with a weak force to form the temporary adhesion parts 83L, 83R. In this case, it is preferable that the top sheet 7 has a mesh roughness (weight) that allows the hot melt adhesive to seep out to the skin side. It is also preferable that the hot melt adhesive is applied to the non-skin facing side of top sheet 7 in such a small amount that it seeps out onto the skin facing side of top sheet 7 to achieve temporary adhesion.

[0032] At both longitudinal ends of the non-jointed portions 82L, 82R of the pad fixing portions 80L, 80R, fixing portions 90L, 90R, 91L, 91R are provided that fix the pad position fixing sheets 8L, 8R to the top sheet 7 with hot melt adhesive. The fixing portions 90L, 90R are provided in the rear 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 pad position fixing sheets 8L, 8R and the top sheet 7, and adhere and fix the pad position fixing sheets 8L, 8R to the top sheet 7.

[0033] In the pad fixing parts 80L, 80R, the non-jointed parts 82L, 82R between the front and rear fixing parts 90L, 90R, 91L, 91R rise from the top sheet 7 to the skin side. More specifically, the pad position fixing sheets 8L, 8R are the boundaries between the jointed parts 81L, 81R and the non-jointed parts 82L, 82R, and the inner non-jointed parts 82L, 82R rise to the skin side at the curved upright lines 84L, 84R. This forms a gap between the pad position fixing sheets 8L, 8R and the top sheet 7. The absorbent pad is inserted into this gap, and the non-jointed parts 82L, 82R of the pad fixing parts 80L, 80R press the absorbent pad against the top sheet side, preventing the absorbent pad from shifting from the diaper 1. The absorbent pads that can be used vary in size for each product. In the diaper 1 according to this embodiment, temporary adhesive portions 83L, 83R are provided at least in part of the non-jointed portions 82L, 82R, and the temporary adhesive is peeled off just enough to form a gap necessary for inserting an absorbent pad to be used with the diaper 1, so that the absorbent pad can be fixed in a gap of an area suitable for the size of the absorbent pad without inserting the absorbent pad all the way into the non-jointed portions 82L, 82R. Since the diaper 1 can fix the absorbent pad, the absorbent pad can be positioned in an appropriate position with respect to the urethral opening and anus, which are the excretion positions of the wearer.

[0034] In this embodiment, the pad fixing parts 80L, 80R are provided on both the left and right sides of the diaper 1. Here, the pad fixing parts 80L, 80R have free ends 82LA, 82RA arranged inside the non-joined parts 82L, 82R, and the above-mentioned elastic members 8EL, 8ER arranged on the free end side. If the free ends 82LA, 82RA of the non-joined parts 82L, 82R are easily peeled off from the top sheet 7, it becomes easier to insert an absorbent pad between the non-joined parts 82L, 82R and the top sheet 7. When an absorbent pad is inserted between the non-joined parts 82L, 82R and the top sheet 7, it is preferable to raise the free ends 82LA, 82RA from the top sheet 7 toward the skin surface side by the contraction force of the elastic members 8EL, 8ER. In addition, the free ends 82RA, 82RL of the non-joined parts 82L, 82R where the temporary adhesion by the temporary adhesion parts 83L, 83R has been peeled off come into contact with the skin surface of the wearer. Since the pad position fixing sheets 8L, 8R are water impermeable, the non-jointed portions 82L, 82R rise up and come into contact with the wearer's skin, thereby eliminating gaps that may form between the diaper 1 and the skin, and preventing urine and other excrement from leaking to the outside. This can prevent the non-joined portions 82L, 82R from leaking out. In addition, the non-joined portions 82L, 82R tend to rise up from the top sheet 7 in the area where the contractile force of the elastic members 8EL, 8ER is acting, and this risen portion functions as a leakage barrier that prevents discharged liquids and waste from leaking to the outside. Since the elastic members 8EL, 8ER exert their contractile force mainly in the crotch region 1B, the non-joined portions 82L, 82R can function as leakage barriers in the crotch region 1B where the top sheet 7 and the absorbent pad are furthest from the wearer's skin. For this reason, it is preferable to make the non-joined portions 82L, 82R function as leakage barriers by raising them toward the skin side without providing the temporary adhesive portions 83L, 83R near the longitudinal center of the crotch region 1B.

[0035] In addition, the pad position fixing sheets 8L, 8R are doubled in the thickness direction by folding back a single sheet at the inner end (free end 82LA, 82RA side) in the width direction. The elastic members 8EL, 8ER are sandwiched between the double sheets. In addition, non-adhesive regions 85L, 85R, 86L, ​​86R in which the double sheets are not adhered to each other are provided on the end side of the longitudinal direction of the diaper 1 from the stretchable region 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, ​​86R on the extension line of the stretchable region of the elastic members 8EL, 8ER, the non-joined parts 82L, 82R in the stretchable region are easily raised to the skin surface side, and the free end 82LA, 82RA side is easily pinched with fingers. This allows the user to widen the gap between the non-jointed portions 82L, 82R and the top sheet 7, making it easier to insert the absorbent pad 1 between the non-jointed portions 82L, 82R and the top sheet 7. The pad position fixing sheets 8L, 8R may be doubled by laminating two separate sheets. By providing the temporary adhesive portions 83L, 83R, Therefore, it may be difficult for the non-bonded portions 82L, 82R to rise from the top sheet 7, but by providing the non-bonded regions 85L, 85R, 86L, ​​86R, the non-bonded portions 82L, 82R are more likely to rise due to the elasticity of the elastic members 8EL, 8ER. Furthermore, by rising, the non-bonded portions 82L, 82R can function better as leak-proof walls.

[0036] Next, the pleat rows provided in the non-joined portions 82L, 82R will be described. FIG. 6 is a schematic diagram of a part of the upright non-joined portion 82L as viewed from the inside in the width direction of the diaper 1. In FIG. 6, the pad fixing portion 80L on the left side is illustrated, but the pad fixing portion 80R on the right side has the same configuration as the pad fixing portion 80L. The pad fixing portions 80L, 80R have pleat rows 85 (an example of the "first pleat row" in this application) and pleat rows 86 (an example of the "second pleat row" in this application) provided in the non-joined portions 82L, 82R. The pleat rows 85, 86 are formed by contracting the non-joined portion 82L by the contraction force of the elastic member 8EL arranged in the non-joined portion 82L. In the pleat row 85, a plurality of pleats 85A are formed side by side in the longitudinal direction of the diaper 1. In the pleat row 86, a plurality of pleats 86A are formed side by side in the longitudinal direction of the diaper 1. The pleats 85A, 86A are different in size and the intervals between the pleats in the pleat rows 85, 86. The intervals between the pleats 85A are a first interval, and the intervals between the pleats 86A are a second interval.

[0037] Here, as shown in FIG. 6, the elastic members 8EL are designated as elastic members 8EL1, 8EL2, and 8EL3 in the order from the free end 82LA side toward the rising line 84L. The elastic members 8EL1, 8EL2, and 8EL3 are arranged at a distance from each other in the width direction of the diaper 1. The distance between the elastic members 8EL1 and 8EL2 arranged on the free end side is narrower than the distance between the elastic members 8EL2 and 8EL3. Therefore, the pleat row 85 formed between these elastic members by the contraction of the elastic members 8EL1 and 8EL2 has a narrower distance between the pleats and a smaller pleat size than the pleat row 86 formed between these elastic members by the contraction of the elastic members 8EL2 and 8EL3. The surface of the absorbent pad used in combination may also be unevenly formed by the contraction force of the elastic members. Each pleat of the pleat rows 85 and 86 can be engaged with the unevenness of the absorbent pad to fix the absorbent pad to the diaper 1. In addition, if the diaper 1 has only one type of pleats, it may not fit the unevenness of the absorbent pad used with the diaper 1. Meanwhile, in this embodiment, the pad fixing portion 80L has two pleat rows 85, 86, one large and one small, in the non-jointed portion 82L. By having a plurality of types of pleat rows 85, 86, the pad fixing portion 80L can increase the possibility of engaging with the irregularities of various absorbent pads that may be used in combination. This allows the diaper 1 according to this embodiment to fix various absorbent pads that may be used in combination.

[0038] The contractile forces of the elastic members 8EL1 to 8EL3 may be made different in order to make the pleats in the pleat rows 85 and 86 different in size. For example, the contractile forces of the elastic members 8EL1 and 8EL2 forming the pleat row 85 with supposedly small pleats may be made relatively small, and the contractile force of the elastic member 8EL3 may be made relatively large. The contractile forces can be adjusted by the draft ratio and elastic modulus of the elastic members.

[0039] Next, the interval between the joining portions 81L, 81R of the pair of left and right pad fixing portions 80L, 80R will be described with reference to FIG. 7. FIG. 7 is a plan view showing the diaper 1 according to this embodiment, similar to FIG. 5. The interval between the joining portions 81L, 81R is synonymous with the interval between the rising lines 84L, 84R which are the boundaries between the joining portions 81L, 81R and the non-joining portions 82L, 82R. As shown in FIG. 7, the rising lines 84L, 84R are bent inward in the width direction at the longitudinal center of the diaper 1. If the interval between the rising lines 84L, 84R at the longitudinal center of the diaper 1 is L1, the interval between the rising lines 84L, 84R at the longitudinal front side of the diaper 1 is L2, and the interval between the rising lines 84L, 84R at the longitudinal rear side of the diaper 1 is L3, L2 and L3 are longer than L1.

[0040] Generally, an absorbent pad is relatively wide at the front and rear sides in the front-rear direction and relatively narrow at the center in the front-rear direction. In the diaper 1 according to the present embodiment, the distance between the left and right joint parts 81L, 81R is wide at the front and rear sides and narrow at the center, so that the shape of the innermost end of the non-joined parts 82L, 82R can be made to match the shape of the absorbent pad to be used in combination. In the diaper 1, the absorbent pad can be fixed by the pad fixing parts 80L, 80R by inserting the absorbent pad into the non-skin-facing side of the non-joined parts 82L, 82R whose innermost end matches the shape of the non-joined parts 82L, 82R. In the diaper 1, the position of the absorbent pad can be prevented from shifting relative to the diaper 1.

[0041] Next, the rear pad fixing part 80C (second pad fixing part) will be described with reference to Fig. 5. The pad fixing part 80C is formed of a pad position fixing sheet 8C, and the rear side of the absorbent pad is inserted between the top sheet 7 and the pad position fixing sheet 8C to fix the absorbent pad. The pad fixing part 80C has a joint part 81C (second joint part) that is joined to the top sheet 7 relatively outside when viewed in the longitudinal direction of the diaper 1 on the skin-facing side of the top sheet 7, and a non-joined part 82C (second non-joined part) that is not joined to the top sheet 7 on the inner side in the longitudinal direction of the diaper than the joint part 81C. The pad position fixing sheet 8C is joined to the top sheet 7 at the joint part 81C. The top sheet 7 arranged on the non-skin-facing side of the pad position fixing sheet 8C is coated with a hot melt adhesive, and the pad position fixing sheet 8C is laminated thereon to form the joint part 81C.

[0042] In the non-joined portion 82C that is disposed longitudinally inward of the joined portion 81C, the pad position fixing sheet 8C and the top sheet 7 are not joined. The pad fixing portion 80C has a temporary adhesive portion 83C that is temporarily attached to the top sheet 7 in at least a part of the non-joined portion 82C (second temporary adhesive portion). In FIG. 5, the area of ​​the non-joined portion 82C is shown shaded with diagonal lines, and the temporary adhesive portion 83C is provided in at least a part of the shaded area. In this embodiment, the pad position fixing sheet 8C and the top sheet 7 can be peeled off at the temporary adhesive portion 83C without tearing them. Such a temporary adhesive portion 83C is formed by applying a small amount of hot melt adhesive between the pad position fixing sheet 8C and the top sheet 7. Alternatively, for example, the top sheet 7 may be bonded to a material arranged on the non-skin facing side (e.g., core wrap sheet 6W, see FIG. 3) with a hot melt adhesive, and a small amount of this hot melt adhesive may permeate the skin facing side of the top sheet 7, bonding the top sheet 7 and the pad position fixing sheet 8C with a weak force, thereby forming the temporary adhesive part 83C.

[0043] In the pad fixing portion 80C, the non-jointed portion 82C rises from the top sheet 7 toward the skin side. More specifically, the pad position fixing sheet 8C has the inner non-jointed portion 82C rise toward the skin side at the rising line 84C, which is the boundary between the jointed portion 81C and the non-jointed portion 82C. This forms a gap between the pad position fixing sheet 8C and the top sheet 7. The absorbent pad is inserted into this gap, and the non-jointed portion 82C of the pad fixing portion 80C presses the absorbent pad toward the top sheet 7 side, thereby preventing the absorbent pad from shifting its position relative to the diaper 1. In addition, the absorbent pads that can be used vary in size for each product. In the diaper 1 according to this embodiment, a temporary adhesive portion 83C is provided in at least a part of the non-jointed portion 82C, and the temporary adhesive is peeled off to form a gap necessary for inserting the absorbent pad to be used with the diaper 1, so that the absorbent pad can be fixed in a gap of an area suitable for the size of the absorbent pad without inserting the absorbent pad deep into the non-jointed portion 82C. Since the diaper 1 can fix the absorbent pad, the absorbent pad can be positioned appropriately with respect to the wearer's excretion positions, that is, the urethral opening and anus.

[0044] In this embodiment, the pad fixing portion 80C is provided on the rear side of the diaper 1. Here, the pad fixing portion 80C has a free end 82CA arranged inside the non-joined portion 82C and the above-mentioned elastic member 8EC arranged on the free end side. If the free end 82CA of the non-joined portion 82C is easily peeled off from the top sheet 7, it is easy to insert an absorbent pad between the non-joined portion 82C and the top sheet 7, so it is preferable to raise the free end 82CA from the top sheet 7 to the skin side by the contractile force of the elastic member 8EC. In addition, the non-joined portion 82C forms a gap between the top sheet 7 and the portion where the temporary adhesion by the temporary adhesive portion 83C is peeled off. Since the pad position fixing sheet 8C has water impermeability, the non-joined portion 82C forms a gap between the top sheet 7 and the top sheet 7 to form a space between the top sheet 7, and the wearer's discharged liquid and discharged matter can be contained in the space. This makes it possible for the diaper 1 to prevent discharged liquid and discharged matter from leaking out from the rear end (back side) of the rear side.

[0045] As described above, the diaper 1 according to this embodiment includes pad fixing parts 80L, 80R, and 80C. The diaper 1 can fix the absorbent pad by these pad fixing parts. The diaper 1 may have at least one of the pad fixing parts 80L, 80R, and 80C. That is, the pad fixing part may be provided only on one of the left and right sides, only on the rear body region 1R, only on the front body region 1F, or both on the front body region 1F and the rear body region 1R. The pad fixing part 80C extending in the width direction may be provided not on the rear body region 1R but on the front body region 1F. In this case, the pad fixing part 80C functions as a leak-proof wall to prevent discharged liquid or discharged matter from leaking out from the front rear end (abdominal side). The diaper 1 can fix the absorbent pad by providing the pad fixing part at least on the left, right, front, and rear sides.

[0046] The pad fixing portion 80C has two elastic members 8EC provided in a stretched state on the pad position fixing sheet 8C, thereby forming a pleat row. FIG. 8 is a schematic diagram of the non-jointed portion 82C of the pad fixing portion 80C as viewed from the non-skin facing side. The pad fixing portion 80C has a pleat row 87 (third pleat row) provided in the non-jointed portion 82C. The pleat row 87 is formed by contracting the non-jointed portion 82C due to the contractile force of the elastic members 8EC arranged in the non-jointed portion 82C. In the pleat row 87, a plurality of pleats 87A are formed side by side in the width direction of the diaper 1. Each pleat in the pleat row 87 is The folds 87 engage with the irregularities of the absorbent pad, thereby fixing the absorbent pad to the diaper 1. In the diaper 1 according to the present embodiment, the pad fixing portion 80C is provided with pleat rows 87 extending in the width direction, thereby preventing the absorbent pad from shifting in position in the width direction.

[0047] Next, the relationship between the elastic member 4C and the non-joined portions 82L, 82R will be described with reference to FIG. 9. For the sake of explanation, the slit 6H is omitted in FIG. 9. The elastic member 4C arranged between the cover sheet 4 and the back sheet 5 is curved inward in the width direction at the center side in the longitudinal direction of the diaper 1, and a part of it extends in the area overlapping the non-joined portions 82L, 82R. The contraction force of the elastic member 4C is transmitted to the top sheet 7 via the back sheet 5 and the absorbent body 6. This contraction force forms wrinkles in the area overlapping the non-joined portions 82L, 82R in the top sheet 7. In this way, the elastic member 4C extends in the area overlapping the non-joined portions 82L, 82R, and forms wrinkles in the top sheet 7 in this area. The diaper 1 according to this embodiment forms wrinkles in the top sheet 7, so that the wrinkles can be engaged with the absorbent pad inserted on the non-skin-facing side of the non-joined portions 82L, 82R. This allows the diaper 1 to better fix the absorbent pad.

[0048] As shown in FIG. 9, the elastic member 4C extends in a curved shape that draws an arc in the area overlapping with the non-jointed portions 82L, 82R. The contraction force of the elastic member 4C forms wrinkles in the top sheet 7 that extend obliquely with respect to the longitudinal direction of the diaper. By forming oblique wrinkles in the top sheet 7, the diaper 1 can more firmly fix an absorbent pad that does not engage with the pleats of the pleat rows 85, 86 extending in the longitudinal direction of the diaper 1 or the pleats of the pleat row 87 extending in the width direction of the diaper 1, if the absorbent pad can be engaged with the oblique wrinkles of the top sheet 7. The diaper 1 can fix various absorbent pads. The diaper 1 can also more strongly fix an absorbent pad by engaging the absorbent pad with both the pleats of the pleat rows 85, 86 and the wrinkles formed in the top sheet 7. The diaper 1 can fix the absorbent pad from both the skin-facing side and the non-skin-facing side by engaging the skin-facing side of the absorbent pad with each pleat of the pleat rows 85, 86 and engaging the wrinkles formed in the top sheet 7 with the non-skin-facing side of the absorbent pad.

[0049] Moreover, the elastic members 4C do not extend inward in the width direction behind the longitudinal center of the diaper 1. The longitudinal center of the diaper 1 is a buttocks-corresponding region 88 corresponding to the buttocks of the wearer, and the elastic members 4C extend to avoid the buttocks-corresponding region 88. When wrinkles are formed in the top sheet 7 within the buttocks-corresponding region 88 of the diaper 1, the unevenness caused by the wrinkles comes into contact with the skin surface of the wearer, degrading the comfort of wearing the diaper 1. By extending the elastic members 4C to avoid the buttocks-corresponding region 88, the diaper 1 can prevent unnecessary wrinkles from being formed in the buttocks-corresponding region 88. This improves the comfort of wearing the diaper 1 and eliminates the need to smooth out wrinkles in the buttocks-corresponding region 88 when wearing the diaper 1. Furthermore, the diaper 1 prevents unwanted wrinkles from being formed in the buttocks-corresponding region 88, thereby preventing bedsores caused by wrinkles coming into contact with the skin surface.

[0050] <Variation 1> Next, a diaper 1 according to a first modified example of this embodiment will be described. FIG. 10 is a plan view showing the diaper according to the first modified example. In FIG. 10, the slit 6H is omitted for the sake of explanation. The elastic members 4SL, 4SR (an example of a third elastic member) arranged between the cover sheet 4 and the back sheet 5 are curved inward in the width direction at the front side in the longitudinal direction of the diaper 1, and a part of them extends in the area overlapping with the non-joined parts 82L, 82R. The contractile force of the elastic members 4SL, 4SR is transmitted to the top sheet 7 via the back sheet 5 and the absorbent body 6. This contractile force forms wrinkles in the area of ​​the top sheet 7 overlapping with the non-joined parts 82L, 82R. In this way, the elastic members 4SL, 4SR extend in the area overlapping with the non-joined parts 82L, 82R, and form wrinkles in the top sheet 7 in this area. The elastic members 4SL, 4SR also bend inward in the width direction at the front side in the longitudinal direction of the diaper 1, and a part of them extends in the area overlapping with the non-joined parts 82L, 82R. , 82R, and wrinkles are formed in the top sheet 7 in this region. In the diaper 1 according to this modification, the elastic member 4C and the elastic members 4SL, 4SR extend along different lines. In the diaper 1 according to this modification, wrinkles extending in various directions are formed in the top sheet 7 by the elastic members 4C and the elastic members 44SL, 4SR. In the diaper 1, by forming various wrinkles in the top sheet 7, even if the absorbent pad does not engage with each pleat of the pleat rows 85, 86 extending in the longitudinal direction of the diaper 1 or each pleat of the pleat row 87 extending in the width direction of the diaper 1, the absorbent pad can be more firmly fixed if it can be engaged with the diagonal wrinkles of the top sheet 7. In addition, the diaper 1 can be more firmly fixed by engaging the absorbent pad with both the pleats of the pleat rows 85, 86 and the wrinkles formed in the top sheet 7.

[0051] <Variation 2> Next, a diaper 1 according to Modification 2 of this embodiment will be described. Fig. 11 is a plan view showing the diaper according to Modification 2. In Fig. 11, the areas where the temporary adhesive portions 83L, 83R are formed are indicated by hatching. As shown in Fig. 11, in this modification, the temporary adhesive portions 83L, 83R are provided in the front body region 1F and the back body region 1R, but not in the crotch region 1B.

[0052] In order to insert an absorbent pad between the non-jointed portions 82L, 82R and the top sheet 7, it is preferable to provide temporary adhesive portions 83L, 83R in parts of the non-jointed portions 82L, 82R. For example, by providing the temporary adhesive portions 83L, 83R on the front and rear sides as in this modified example, after the non-jointed portions 82L, 82R in the temporary adhesive portions 83L, 83R are peeled off from the top sheet 7, the four corners of the absorbent pad are positioned at the positions where the temporary adhesive portions 83L, 83R were, and therefore the four corners of the absorbent pad can be fixed by the adhesiveness remaining in the temporary adhesive portions 83L, 83R.

[0053] In addition, if the tape-type diaper 1 is divided into three regions, a front body region 1F, a crotch region 1B, and a back body region 1R, in the front body region 1F and the back body region 1R, the skin-facing sides of the non-joined portions 82L, 82R are pressed against the wearer's skin when worn, so the non-joined portions 82L, 82R do not rise up against the skin. On the other hand, in the crotch region 1B, the non-joined portions 82L, 82R are not pressed against the wearer's skin, but rise up against the skin, forming a leak-proof wall. For this reason, by not providing the temporary adhesive portions 83L, 83R in the crotch region 1B, the non-joined portions 82L, 82R in the crotch region 1B are easily raised up and a leak-proof wall is easily formed.

[0054] <Modification 3> Next, a diaper 1 according to Modification 3 of this embodiment will be described. Fig. 12 is a plan view of the diaper according to Modification 3. In Fig. 12, the areas where the temporary adhesion parts 83L, 83R are formed are indicated by hatching. As shown in Fig. 12, in this modification, the pad position fixing sheets 8L, 8R are not adhered to the top sheet 7 in the stretchable areas where the elastic members 8EL, 8ER stretch. This non-adhesion does not include temporary adhesion. In other words, the above-mentioned temporary adhesion parts 83L, 83R are not provided in the stretchable areas where the elastic members 8EL, 8ER stretch.

[0055] In the diaper 1 according to this modification, the free ends 82LA, 82RA of the pad fixing parts 80L, 80R are easily raised from the top sheet 7 by the force of contraction of the elastic members 8EL, 8ER. This makes it easier to insert the absorbent pad into the pad fixing parts 80L, 80R from the free ends 82LA, 82RA. Furthermore, by providing temporary adhesive parts 83L, 83R in the front body region 1F and the back body region 1R excluding the stretchable regions of the elastic members 8EL, 8ER, after the non-joined parts 82L, 82R in the temporary adhesive parts 83L, 83R are peeled off from the top sheet 7, the four corners of the absorbent pad are positioned at the positions where the temporary adhesive parts 83L, 83R were, and therefore the four corners of the absorbent pad can be fixed by the adhesiveness remaining in the temporary adhesive parts 83L, 83R. Furthermore, the diaper 1 is By not providing the temporary adhesive portions 83L, 83R in the stretchable regions, the non-jointed portions 82L, 82R can be easily raised by the contractile force of the elastic members 8EL, 8ER, making it easier to form leak-proof walls.

[0056] <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.

[0057] In the above embodiment, the top sheet 7 forming the skin-facing portion and the pad position fixing sheets 8L, 8R forming the pad fixing portions 80L, 80R are separate sheets, but this is not limited to the above. For example, the pad fixing portions 80L, 80R may be formed by the top sheet 7 by folding back the top sheet 7 at the end sides in the width direction. Similarly, the pad fixing portion 80C may be formed by the top sheet 7 by folding back the top sheet 7 at the end sides in the longitudinal direction.

[0058] The embodiments and modifications thereof disclosed above can be combined with each other. [Explanation of symbols]

[0059] 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 3R: Waist gather 4. Cover sheet 4KL, 4KR... Constriction 4C, 4SL, 4SR, 8EL, 8ER, 9ER, 22, 24 Elastic member 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, 8R, 8C ··Pad position fixed seat 81L, 81R, 81C...Joint part 82L, 82R, 82C...Non-joint part 83L, 83R, 83C Temporary adhesive part 84L, 84R, 84C...Standing line 85,86,87...fold row 88. Buttocks area 85L,85R,86L,86R...Non-adhesive area 90L, 90R, 91L, 91R · Fixed part 10L, 10R: Leg 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; A water-permeable skin-facing portion disposed on the skin-facing side of the wearer; a pad fixing portion which is made of a sheet and has a joining portion which joins to the skin-facing portion on the outer side in the width direction or the longitudinal direction on the skin-facing side of the skin-facing portion, a non-joining portion which is not joined to the skin-facing portion on the inner side of the joining portion, and a temporary adhesion portion which temporarily adheres to the skin-facing portion in at least a part of the non-joining portion, and which fixes the absorbent pad by inserting a part of an absorbent pad used together with the absorbent article between the pad fixing portion and the skin-facing portion; An absorbent article comprising:

2. The skin-facing portion is bonded to a material arranged on a non-skin-facing side of the skin-facing portion by an adhesive, and the adhesive permeates the skin-facing side of the skin-facing portion to form the temporary adhesive portion. The absorbent article of claim 1.

3. the pad fixing portion extends in the longitudinal direction and is composed of one of the sheets arranged on one side in the width direction or a pair of the sheets arranged on both sides in the width direction, The joint portion is joined to the skin-facing portion on the outer side in the width direction than the non-joined portion. The absorbent article according to claim 1 or 2.

4. The temporary adhesive portion is provided on the front side and the rear side. The absorbent article of claim 3.

5. The pad fixing portion is a free end portion disposed on an inner side in the width direction of the non-jointed portion; an elastic member disposed on the free end side of the non-jointed portion and provided in a stretched state on the sheet constituting the pad fixing portion; having The absorbent article of claim 3.

6. The pad fixing portion has one or more of the elastic members, In the stretchable region where the elastic member stretches, the sheet constituting the pad fixing portion is not adhered to the skin-facing portion. The absorbent article of claim 5.

7. The pad fixing portion has one or more of the elastic members, The sheet constituting the pad fixing portion has a two-layer structure, and the elastic member is sandwiched between the two-layer structure, a non-adhesive region in which the sheets forming the two-layer structure are not adhered to each other is provided on the end side in the longitudinal direction relative to the stretchable region in which the elastic member stretches and contracts; The absorbent article of claim 5.

8. In a worn state, a front body region located around the waist on the abdomen side of the wearer, a crotch region located between the legs, and a back body region located around the waist on the back side are provided in this order in the longitudinal direction, The pad fixing portion extends in the width direction and is disposed in the front body region or the rear body region, The joint portion is joined to the skin surface portion on an outer side in the longitudinal direction than the non-joined portion. The absorbent article according to claim 1 or 2.

9. The pad fixing portion is a first pleat row provided in the non-jointed portion, the first pleats being arranged in the longitudinal direction at first intervals; a second pleat row provided in the non-jointed portion, the second pleats being arranged in the longitudinal direction at a second interval different from the first interval; have The absorbent article according to claim 1 or 2.

10. The pad fixing portion has a plurality of elastic members provided in a stretched state in the non-jointed portion, the first pleat row and the second pleat row are formed by contracting the non-jointed portion due to a contractile force of the plurality of elastic members; The elastic members are spaced apart from one another in the width direction, a distance between the plurality of elastic members forming the first pleat row is narrower than a distance between the plurality of elastic members forming the second pleat row; 10. The absorbent article of claim 9.

11. A pair of the sheets arranged on both sides in the width direction is provided, so that the pad fixing portion is arranged on both sides in the width direction, the joint portion is joined to the skin-facing portion on the outer side in the width direction than the non-joined portion, a distance between the joints of the pair of pad fixing portions in the width direction is longer on the front side and the rear side than at a central portion in the longitudinal direction; The absorbent article according to claim 1 or 2.

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