Absorbent articles

Abstract

To provide an absorbent article capable of suppressing a decrease in wearability.SOLUTION: An absorbent article includes: an exterior sheet including an outer cover sheet forming an exterior surface and an inner cover sheet stacked on a skin surface side of the outer cover sheet; a plurality of bonding parts for bonding the outer cover sheet and the inner cover sheet, the bonding parts extending in a width direction and being formed so as to be separated from each other; a side seal part that bonds end portions in a width direction of a front section region and a rear section region of the exterior sheet so as to form a waist part including a trunk opening part to which the trunk of a wearer is inserted; and a plurality of elastic members arranged so as to extend in the width direction between the outer cover sheet and the inner cover sheet and are bonded to the outer cover sheet and the inner cover sheet by the bonding part.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to absorbent articles.

Background Art

[0002] Absorbent articles that absorb liquids such as urine and body fluids are known (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In an absorbent article, an elastic member for forming a waist gather is provided between a sheet forming an outer surface and a sheet material laminated on the wearer side of the sheet. This elastic member is adhered to these sheets and contracts a body opening through which the wearer's torso is inserted. In an absorbent article, if an adhesive is applied to the entire surface of these sheets and adhered over the entire surface, the skin feel against the wearer deteriorates and the wearing comfort decreases. However, no specific adhesion form of the sheet considering the wearing comfort has been proposed.

[0005] An object of the present invention is to provide an absorbent article capable of suppressing a decrease in wearing comfort.

Means for Solving the Problems

[0006] To solve the above problems, in the present invention, a plurality of adhesive portions for adhering an outer cover sheet and an inner cover sheet are provided.

[0007] More specifically, the absorbent article according to the present invention has a length along the longitudinal direction and a length along the width direction perpendicular to the longitudinal direction, and is an absorbent article having a front body region located on the abdominal side of the wearer when worn, a crotch region located in the crotch area and provided with an absorbent material, and a back body region located on the back side, in this order along the longitudinal direction, and comprises an outer sheet having an outer cover sheet that forms an outer surface and an inner cover sheet laminated on the skin side of the outer cover sheet, an adhesive portion that adheres the outer cover sheet and the inner cover sheet, a plurality of adhesive portions that extend along the width direction and are formed spaced apart from each other, a side seal portion that joins the ends of the front body region and the back body region of the outer sheet in the width direction so as to form a waist portion having a waist opening through which the wearer's torso is inserted, and a plurality of expandable members that are arranged in the waist portion between the outer cover sheet and the inner cover sheet so as to extend along the width direction and are adhered to the outer cover sheet and the inner cover sheet by the adhesive portion.

[0008] In the absorbent article described above, if the absorbent article is divided into multiple regions in the longitudinal direction, the distance between the adhesive portions in each region may be the same.

[0009] In the absorbent article described above, the distance between the adhesive portions in the region where the expandable member is not arranged may be wider than the distance between the adhesive portions in the region where the expandable member is arranged, and may be three times or less.

[0010] In the absorbent article described above, the plurality of expandable members include a first expandable member and a second expandable member. The plurality of regions are configured as follows: a first region adjacent to the edge of the torso opening that forms the torso opening, in which the first expandable member extending along the width direction is arranged; a second region adjacent to the first region on the crotch region side, in which the second expandable member extending along the width direction is arranged; and a third region adjacent to the second region on the crotch region side, in which the expandable member is not arranged. The spacing between the adhesive portions in the third region may be wider than the spacing between the adhesive portions in the second region.

[0011] The absorbent article may include another expandable member that extends in a direction perpendicular to the plurality of adhesive portions when the absorbent article is viewed in plan.

[0012] The absorbent article described above may be positioned adjacent to the adhesive portion at the end of the outer sheet in the width direction, and may also have a full-surface adhesive portion along the widthwise extension line between the adhesive portions, where the outer cover sheet and the inner cover sheet are bonded together.

[0013] In the absorbent article described above, the full-surface adhesive portion may be located at the end in the width direction.

[0014] The absorbent article has a pair of lower limb openings through which the wearer's lower limbs are inserted, the lower limb opening edges forming the lower limb openings include the outer sheet, the full adhesive portion is formed along the lower limb opening edges to the lower limb opening edges, and in the front body region, it may traverse the central part in the width direction, including the area corresponding to the wearer's pubic bone, and in the back body region, it may be positioned on both sides, flanking the area corresponding to the wearer's anus.

[0015] The absorbent article may include a third stretchable member bonded to the outer cover sheet and the inner cover sheet by the full-surface adhesive portion, and the third stretchable member may extend from the crotch area side of the side seal portion along the lower limb opening.

[0016] In the absorbent article, the third elastic member is disposed on each of the front body region side and the back body region side. The third elastic member on the front body region side crosses the central portion in the width direction. The third elastic member on the back body region side may not have an elastic force at the central portion in the width direction.

[0017] In the absorbent article, the lower limb opening edge is formed by a curve having a plurality of inflection points, and the overall adhesion portion may be provided including the inflection points in portions on the lower thigh region side of the front body region and the back body region.

[0018] In the absorbent article, in the lower thigh region, the adhesion portion may extend from the center in the width direction to both ends in the width direction.

[0019] The absorbent article may include a topsheet having a water-permeable region provided on the skin side of the absorber, a non-water-permeable backsheet covering the non-skin side of the absorber, and a side sheet for forming a three-dimensional gather, the non-water-permeable side sheet being disposed on the skin side of the topsheet.

Advantages of the Invention

[0020] According to the present invention, a decrease in the feeling of wearing can be suppressed.

Brief Description of the Drawings

[0021] [Figure 1] FIG. 1 is a perspective view of a pant-type disposable diaper for adults according to an embodiment. [Figure 2] FIG. 2 is an exploded perspective view of the diaper according to the embodiment. [Figure 3] FIG. 3 is a developed view of the diaper according to the embodiment. [Figure 4] FIG. 4 is a developed view of the diaper according to the embodiment. [Figure 5] FIG. 5 is an exploded perspective view of the diaper according to a modified example.

Mode for Carrying Out the Invention

[0022] <Embodiment> Hereinafter, a diaper according to an embodiment of the present invention will be described with reference to the drawings. Note that the configurations of the following embodiments are examples, and the present invention is not limited to the configurations of these embodiments.

[0023] FIG. 1 is a perspective view of a pant-type disposable diaper for adults (hereinafter simply referred to as "diaper") according to an embodiment. In the diaper, the direction connecting the front body portion disposed opposite the wearer's abdomen and the back body portion disposed opposite the back is defined as the longitudinal direction. Between these front body portions (one side in the longitudinal direction) and the back body portion (the other side in the longitudinal direction) (the center in the longitudinal direction), a crotch portion disposed under the wearer's crotch (opposite the groin) is located. Also, in the state where the diaper is worn by the wearer, the side facing the wearer's skin is defined as the skin side, and the side opposite the skin side is defined as the non-skin side. Further, the direction connecting the skin side and the non-skin side is defined as the thickness direction, and the direction orthogonal to both the longitudinal direction and the thickness direction is defined as the width direction. Additionally, viewing from the thickness direction is defined as plan view. The diaper 1 has a length along the longitudinal direction and a width along the width direction orthogonal to the longitudinal direction, and is worn under the wearer's crotch. Also, the terms related to the directions used in the present application are meant to correspond to the front, back, left, and right of the wearer in the state where the diaper 1 is worn by the wearer. For example, when referring to the left-right direction in the present application, it means the direction corresponding to the left and right of the wearer in the state where the diaper 1 is worn by the wearer.

[0024] In this embodiment, as an example of an absorbent article, a pant-type disposable diaper with a tubular structure having an opening for the wearer's waist circumference and a pair of left and right openings through which the wearer's left and right lower limbs are inserted is given as an example. However, the term "absorbent article" as used in this application is not limited to adult pant-type disposable diapers. The term "absorbent article" as used in this application includes children's pant-type disposable diapers. Furthermore, it includes various forms of absorbent articles that can enclose the waist circumference and crotch, such as tape-type disposable diapers that form a tubular structure by attaching a tape, fixed near one end of a sheet-like member that covers the wearer's crotch (genitals) from the front to the back, to the other end of the sheet-like member.

[0025] Diaper 1 has a crotch region 1B, which is the part corresponding to the crotch area that covers the wearer's genitals (crotch) when worn; a front body region 1F, which is the part corresponding to the front of the wearer's waist and covers the wearer's abdominal side; and a back body region 1R, which is the part corresponding to the back of the wearer's waist and covers the wearer's back side. Here, the front body region 1F is located in front of the crotch region 1B, and the back body region 1R is located behind the crotch region 1B. In this embodiment, diaper 1 is a pant-type disposable diaper and is equipped with side seal portions SL and SR that join the widthwise ends of the front body region 1F and the back body region 1R of the outer sheet so as to form a waist portion 2D having a waist opening 2T. The left edge of the front body region 1F and the left edge of the back body region 1R are joined to each other by the side seal portion SL, and the right edge of the front body region 1F and the right edge of the back body region 1R are joined to each other by the side seal portion SR. Therefore, the diaper 1 has a torso opening 2T formed by the upper edge of the front body region 1F and the upper edge of the back body region 1R. In addition, the diaper 1 has a left lower limb opening 2L formed on the left side of the crotch region 1B where the above-mentioned joint is not made, and a right lower limb opening 2R formed on the right side of the crotch region 1B. The wearer's left lower limb is inserted through the left lower limb opening 2L, the wearer's right lower limb is inserted through the right lower limb opening 2R, and the wearer's torso is inserted through the torso opening 2 When inserted into T and worn, the front panel area 1F is positioned on the wearer's abdominal side, the back panel area 1R is positioned on the wearer's back side, and the left lower limb opening 2L and the right lower limb opening 2R are fixed to the wearer's body, surrounding the wearer's thighs. Because the diaper 1 is fixed to the wearer's body in this manner, the wearer can move freely while wearing the diaper 1.

[0026] Diaper 1 has an absorbent material that can absorb and retain liquids, mainly located around the crotch area 1B. In addition, to prevent the formation of gaps between diaper 1 and the wearer's skin that could become pathways for liquid leakage, diaper 1 is provided with a three-dimensional gather 3BL at the left lower limb opening 2L surrounding the thigh of the wearer's left lower limb, a three-dimensional gather 3BR at the right lower limb opening 2R surrounding the thigh of the wearer's right lower limb, and a waist gather 3R at the torso area 2D surrounding the wearer's waist. In addition, leg gathers 3LL and 3LR are provided around the base of the wearer's legs. The three-dimensional gathers 3BL and 3BR and the waist gather 3R adhere closely to the wearer's skin due to the elastic force of the elastic thread. The leg gathers 3LL and 3LR also prevent gaps from forming between the base of the wearer's legs and diaper 1. Therefore, waste discharged from the wearer's genitals is absorbed into the absorbent material of diaper 1 with almost no leakage.

[0027] Diaper 1 can be used in combination with an inner pad (not shown). The inner pad is a roughly rectangular absorbent article equipped with an absorbent material that absorbs wastewater. When using diaper 1 and the inner pad together, the inner pad is placed on the skin-facing side of diaper 1 so as to be in contact with the wearer's urinary tract. Wastewater is first absorbed by the inner pad, and only the wastewater that could not be absorbed by the inner pad reaches the absorbent material of diaper 1 and is further absorbed. Therefore, even if the amount of wastewater is large, leakage from diaper 1 can be prevented. Also, if the amount of wastewater is small and can be fully absorbed by the inner pad, only the inner pad needs to be replaced when wastewater occurs, thus reducing care costs. Furthermore, diaper 1 can be used for extended periods.

[0028] Figure 2 is an exploded perspective view of a diaper 1 according to an embodiment. The diaper 1 has a cover sheet 4 (an example of an "outer cover sheet" as referred to in this application) and an inner cover sheet 5 (an example of an "inner cover sheet" as referred to in this application). The cover sheet 4 and the inner cover sheet 5 are sheets with a roughly hourglass shape (gourd shape) that are bonded together to form the outer surface of the diaper 1, and are the same shape except for the ends on the front body region 1F side and the ends on the back body region 1R side. When worn by a wearer, the cover sheet 4 is laminated on the non-skin side of the wearer, and the inner cover sheet 5 is laminated on the skin side. Between the cover sheet 4 and the inner cover sheet 5, elastic threads are provided to form a waist gather 3R and leg gathers 3LL, 3LR. In addition to the elastic threads, an elastic material such as a strip of rubber can be appropriately selected.

[0029] The cover sheet 4 and the inner cover sheet 5 can be made of a nonwoven fabric made of a liquid-impermeable thermoplastic resin, for example, to suppress leakage of waste. Examples of liquid-impermeable thermoplastic resins include polyethylene (PE) and polypropylene (PP).

[0030] Diaper 1 has a back sheet 6, an absorbent core 8, and a top sheet 9, which are sequentially laminated on the wearer-side surfaces of the cover sheet 4 and the inner cover sheet 5. The back sheet 6 is a substantially rectangular sheet with a length in the longitudinal direction that extends from the wearer's front body through the crotch to the back body, and a predetermined width in the width direction perpendicular to the longitudinal direction. The absorbent core 8 and the top sheet 9 are both sheet-like members that have a substantially rectangular appearance similar to the back sheet 6, and are sequentially laminated on the back sheet 6 with their longitudinal directions coinciding with the longitudinal direction of the back sheet 6. The back sheet 6 is a sheet made of a liquid-impermeable thermoplastic resin to suppress leakage of waste. The top sheet 9 absorbs the absorbent core 8. This is a sheet-like component positioned on the skin-facing side of the wearer to cover the water surface. This top sheet 9 is permeable to liquid in part or in whole. Therefore, when the diaper 1 is worn, liquid discharged from the wearer penetrates the absorbent material 8 through the top sheet 9, which can come into contact with the wearer's skin, and is absorbed there. Examples of permeable sheets include woven fabrics, nonwoven fabrics, and porous films. The top sheet 9 may also be hydrophilic.

[0031] The absorbent body 8 comprises an absorbent core 8c and a core wrap sheet 7 (an example of the "water-permeable sheet" in this disclosure) that encloses the absorbent core 8c. The absorbent core 8c has a structure in which granular absorbent resin (super absorbent polymer), 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 of cellulosic fibers such as pulp fibers, rayon fibers, or cotton fibers, or synthetic fibers such as polyethylene, polypropylene, or polyethylene terephthalate that have been treated to be hydrophilic. When the absorbent core 8c absorbs liquid discharged from the wearer, it swells the absorbent resin held in the gaps between the short fibers, thereby retaining the liquid within the short fibers. In this embodiment, the absorbent core 8c is roughly hourglass-shaped with a constriction near the center. The absorbent core 8c can take on an appropriate shape depending on the purpose. Examples of shapes for the absorbent core 8c include rectangular, elliptical, and various other shapes.

[0032] The core wrap sheet 7 is a thin, liquid-permeable sheet. By wrapping the absorbent core 8c with the core wrap sheet 7, the SAP of the absorbent core 8c is less likely to mix with other structures. In addition, deformation of the absorbent core 8c is suppressed. The core wrap sheet 7 can be made of pulp fibers, and tissue paper can be used as an example. The core wrap sheet 7 may be a single sheet, or it may consist of two sheets: an upper sheet placed on the skin side of the wearer, and a lower sheet placed on the non-skin side of the wearer, which wraps around the sides of the absorbent core and the skin side. If the core wrap sheet 7 consists of two sheets, the widthwise end of the upper sheet may be wrapped around the other sheets (for example, the side sheets 10L, 10R, back sheet 6, and top sheet 9 described later). Note that the absorbent body 8 is wrapped around the back sheet 6 and top sheet 9, and deformation can also be suppressed by these sheets, so the core wrap sheet 7 may not be provided.

[0033] The back sheet 6, absorbent material 8, and top sheet 9 all extend from the front body region 1F to the back body region 1R. Therefore, when the back sheet 6, absorbent material 8, and top sheet 9 are layered to cover the wearer's genital area (crotch), the longitudinal ends of the back sheet 6, absorbent material 8, and top sheet 9 are located on the wearer's ventral and dorsal sides. In other words, the wearer's genital area is covered by the absorbent material 8 from the wearer's ventral to dorsal side. Therefore, whether the wearer is lying face down or face down when expelling fluid from the body, the expelled fluid will come into contact with the absorbent material 8 via the top sheet 9.

[0034] Furthermore, diaper 1 has elongated, strip-shaped side sheets 10L and 10R for forming the three-dimensional gathers 3BL and 3BR described above. The side sheets 10L and 10R are provided on the long sides of the top sheet 9. Elastic threads 10L1 and 10R1 are attached to the side sheets 10L and 10R along their longitudinal direction. Therefore, the edge 4F4 of the front body region 1F of the cover sheet 4 and the edge 4R4 of the back body region 1R are joined to each other, and the edge 4F5 of the front body region 1F of the cover sheet 4 and the edge 4R5 of the back body region 1R are joined to each other, resulting in the completed diaper 1 as shown in Figure 1. The side sheets 10L and 10R are pulled in the longitudinal direction by the contractile force of the elastic threads 10L1 and 10R1 and rise up from the top sheet 9 along the fold lines 10L2 and 10R2 (an example of a "standing line"). As a result, three-dimensional gathers 3BL and 3BR are formed to prevent liquid from leaking out from the left lower limb opening 2L and the right lower limb opening 2R (details are as follows). (See below). The joining method for edges 4F4 and 4R4, and edges 4F5 and 4R5 is not particularly limited, but can be done by, for example, heat sealing, high-frequency sealing, ultrasonic sealing, etc.

[0035] Furthermore, the diaper 1 has an end sheet 11F that is laminated on the wearer-facing side of the front body region 1F of the cover sheet 4, and an end sheet 11R that is laminated on the wearer-facing side of the back body region 1R of the cover sheet 4, sandwiching the back sheet 6, absorbent material 8, top sheet 9, and side sheets 10L, 10R. The end sheets 11F and 11R are strip-shaped sheets that are layered on the cover sheet 4 and inner cover sheet 5 at one end in the longitudinal direction of the top sheet 9. The end sheets 11F and 11R are made of non-permeable nonwoven fabric and mainly reinforce the cover sheet 4 and inner cover sheet 5 in the waist contact area of ​​the diaper 1. In addition, adhesive is applied to the end sheets 11F and 11R, and they are bonded to the inner cover sheet 5 by this adhesive. The end sheets 11F and 11R are positioned on the skin-facing side of the laminate formed by the back sheet 6, absorbent 8, top sheet 9, and side sheets 10L and 10R, preventing the edges of the laminate from directly touching the skin and causing discomfort to the wearer.

[0036] Figure 3 is a schematic diagram showing the diaper 1 according to the embodiment in an unfolded and extended state. Figure 3(A) schematically shows the internal structure of the unfolded and extended diaper 1 when viewed from the left side. Figure 3(B) schematically shows a plan view of the unfolded and extended diaper 1. Note that in Figure 3(B), the illustration of the side sheets 10L, 10R and the end sheets 11F, 11R is omitted. The cover sheet 4 has one end folded back at the fold lines 4FF and 4RF shown in Figure 2. The waist gather 3R described above is formed by adhering thread elastic (thread-like elastic) 4F1, 4F2 to the front body area of ​​the cover sheet 4 and adhering thread elastic (thread-like elastic) 4R1, 4R2 to the back body area of ​​the cover sheet 4. The elastic threads 4F1 and 4F2 are provided along the fold line 4FF, which forms the upper edge of the front bodice area 1F when folded, in the order of elastic thread 4F1 and elastic thread 4F2 from the fold line 4FF side. Similarly, the elastic threads 4R1 and 4R2 are provided along the fold line 4RF, which forms the upper edge of the back bodice area 1R when folded, in the order of elastic thread 4R1 and elastic thread 4R2 from the fold line 4RF side.

[0037] Therefore, the elastic threads 4F1 and 4F2 are provided on the cover sheet 4 with their longitudinal direction, which is the direction of stretching, oriented in the left-right direction of the diaper 1. Similarly, the elastic threads 4R1 and 4R2 are provided on the cover sheet 4 with their longitudinal direction, which is the direction of stretching, oriented in the left-right direction of the diaper 1. Thus, when the edges 4F4 and 4R4 are joined to each other, and the edges 4F5 and 4R5 are joined to each other, the elastic threads 4F1 and 4F2 and the elastic threads 4R1 and 4R2 form a substantially annular stretchable member that wraps around the waist opening 2T, and exert the function of contracting the waist opening 2T in the waist direction. In other words, the elastic threads 4F1 and 4F2 and the elastic threads 4R1 and 4R2 exert a contracting force to make the diaper 1 adhere closely to the wearer, preventing the formation of a gap between the diaper 1 and the wearer's waist circumference. A portion of the multiple elastic threads 4F2 and 4R2 on the crotch area 1B side overlaps with the absorbent material 8.

[0038] The elastic threads 4F1 and 4R1 are provided to extend horizontally along the upper edges of the front and back body regions 1F and 1R, respectively, as shown in Figure 1. The elastic threads 4F2 and 4R2 are provided parallel to each other at predetermined intervals. When the diaper 1 is worn, the elastic threads 4F1 and 4R1 tighten relatively strongly around the wearer's waist above the elastic threads 4F2 and 4R2. The elastic threads 4F1 and 4R1 are responsible for keeping the diaper 1 in close contact with the wearer, preventing it from shifting, and preventing leakage of waste from the abdomen and back. The elastic threads 4F2 and 4R2 alleviate the feeling of pressure on the wearer caused by the contractile force of the elastic threads 4F1 and 4R1. In addition, when an inner pad is used, it suppresses the shifting of the inner pad. 1 is an example of the "first stretchable member" as referred to in this application, and the elastic threads 4F2 and 4R2 are examples of the "second stretchable member" as referred to in this application.

[0039] Furthermore, elastic threads 4F3 and 4R3 are bonded to the cover sheet 4. Elastic threads 4F3 and 4R3 are stretchable members provided in the area of ​​the cover sheet 4 closer to the crotch area 1B than elastic threads 4F2 and 4R2. Elastic thread 4F3, provided in the front body area (ventral side), crosses the absorbent body 8 in the thickness direction. Here, in the area where elastic thread 4F3 crosses the center of the width direction of the diaper 1, the cover sheet 4 and the absorbent body 8 are not bonded, more specifically, the inner cover sheet 5 and the back sheet 6 are not bonded in that area. Therefore, the cover sheet 4 can lift the absorbent body 8 towards the skin side without shrinking the absorbent body 8 due to the contraction of elastic thread 4F3. With this configuration, the diaper 1 can easily lift the absorbent body 8 towards the wearer on the ventral side and bring the free ends of the three-dimensional gathers 3BL and 3BR into contact with the appropriate position on the wearer's skin on the wearer's ventral side.

[0040] Furthermore, unlike the other elastic threads which are bonded seamlessly from the left edge to the right edge of the cover sheet 4, the elastic thread 4R3 is curved and positioned in the direction of the crotch area 1B, overlapping with a part of the core wrap sheet 7 at the constricted portion of the hourglass-shaped absorbent core 8c. By arranging the elastic threads 4F3 and 4R3 in a curved direction of the crotch area 1B, the areas where the elastic threads 4F3 and 4R3 are positioned can be made to function as leg gathers 3LL and 3LR. Note that the elastic threads 4F3 and 4R3 are examples of the "third stretchable member" as referred to in this application.

[0041] The cover sheet 4 is folded back along the fold lines 4FF and 4RF and extends to the area where the elastic threads 4F1 and 4R1 are placed, reinforcing the area where the elastic threads 4F1 and 4R1 are placed with the folded portion. The end sheets 11F and 11R are provided in the area where the elastic threads 4F2 and 4R2 are placed, where the cover sheet 4 folded back along the fold lines 4FF and 4RF does not extend, and reinforcing the area where the elastic threads 4F2 and 4R2 are placed.

[0042] In this application, the term "overlapping sheets" is not limited to a state in which the overlapping sheets are in full contact with each other, but also includes a concept that includes a state in which only parts of the sheets overlap. For example, the end sheet 11F is overlapped such that a part of one end of the back sheet 6 in the longitudinal direction touches a part of the cover sheet 4. The diaper 1 is formed by stacking the back sheet 6 and top sheet 9 with the absorbent material 8 in between, as well as the cover sheet 4, end sheets 11F, 11R, inner cover sheet 5, and side sheets 10L, 10R. Therefore, it can be said that the diaper has a laminate made up of these multiple sheets stacked on top of each other.

[0043] Next, the bonding configuration of the outer sheet of the diaper 1 according to the embodiment will be described using Figure 4. Figure 4 is a schematic diagram showing the diaper 1 according to the embodiment in an unfolded and extended state. The diaper 1 has an outer sheet consisting of a cover sheet 4 that forms the outer surface and an inner cover sheet 5 laminated on the skin-facing side of the cover sheet 4. The cover sheet 4 and the inner cover sheet 5 are bonded together by a plurality of adhesive parts.

[0044] Specifically, the cover sheet 4 and the inner cover sheet 5 are bonded together by multiple adhesive portions 40F, 40R, 41F, 41R, 42F, and 42R that extend along the width direction of the diaper 1. These adhesive portions are formed with hot melt adhesive. Multiple adhesive portions 40F are formed spaced apart from each other. The multiple adhesive portions 40F are formed along each of the multiple elastic threads 4F1, and the elastic threads 4F1 are bonded to the cover sheet 4 and the inner cover sheet 5 by the adhesive portions 40F. Multiple adhesive portions 40R are formed spaced apart from each other. The multiple adhesive portions 40R are formed along each of the multiple elastic threads 4R1, and the elastic threads 4R1 are bonded to the cover sheet 4 and the inner cover sheet 5 by the adhesive portions 40R. It is bonded to part 5. Multiple bonded parts 40F are formed spaced apart from each other. The elastic threads 4F1 and 4R1 are bonded to the cover sheet 4 and inner cover sheet 5 in an extended state, forming an annular stretchable portion that extends along the width direction of the diaper 1 in the waist area 2D.

[0045] Furthermore, multiple adhesive portions 41F are formed spaced apart from each other. The multiple adhesive portions 41F are formed along each of the multiple elastic threads 4F2, and the elastic threads 4F2 are bonded to the cover sheet 4 and the inner cover sheet 5 by the adhesive portions 41F. Multiple adhesive portions 41R are formed spaced apart from each other. The multiple adhesive portions 41R are formed along each of the multiple elastic threads 4R2, and the elastic threads 4R2 are bonded to the cover sheet 4 and the inner cover sheet 5 by the adhesive portions 41R. The elastic threads 4F2 and 4R2 are bonded to the cover sheet 4 and the inner cover sheet 5 in an extended state, forming an annular stretchable portion that extends along the width direction of the diaper 1 in the waist portion 2D. In the waist portion 2D of the diaper 1, the waist gather 3R shown in Figure 1 is formed when the elastic threads 4F1, 4R1, 4F2, and 4R2 are bonded to the cover sheet 4 and the inner cover sheet 5 in an extended state.

[0046] Multiple adhesive portions 42F are formed spaced apart from each other. The adhesive portions 42F adhere the cover sheet 4 and the inner cover sheet 5 on the crotch area 1B side of the elastic thread 4F2. Multiple adhesive portions 42R are formed spaced apart from each other. The adhesive portions 42R adhere the cover sheet 4 and the inner cover sheet 5 on the crotch area 1B side of the elastic thread 4R2. The adhesive portions 42F are located from the longitudinal center of the diaper 1 towards the front body area 1F side, and the adhesive portions 42R are located from the longitudinal center of the diaper 1 towards the back body area 1R side. The adhesive portions 42F and 42R adhere the cover sheet 4 and the inner cover sheet 5 in areas where no elastic thread is placed between the cover sheet 4 and the inner cover sheet 5.

[0047] In this embodiment, the absorbent core 8c has a shape that is constricted in the width direction at the longitudinal center of the diaper 1. The area where the absorbent core 8c is constricted in the width direction corresponds to the crotch area of ​​the wearer and is the crotch area 1B. The widthwise end of the diaper 1 in the crotch area 1B extends along the longitudinal direction.

[0048] Here, the adhesive sections 40F, 40R, 41F, 41R, 42F, and 42R extend linearly and parallel to each other along the width direction of the diaper 1. Hereafter, the adhesive sections 40F, 40R, 41F, 41R, 42F, and 42R may be collectively referred to as linear adhesive section 40F, etc. In order to bond the elastic threads 4F1, 4F2, 4R1, and 4R2, it is preferable that the adhesive sections extend along the width direction. In addition, in order to make the feel of the waist area 2D and other parts uniform, linear adhesive sections 40F, etc. that extend in the width direction are provided throughout the entire outer sheet.

[0049] If the cover sheet 4 and the inner cover sheet 5 are fully bonded together, a hot melt adhesive will be used for bonding, resulting in a rough feel against the wearer's skin. The diaper 1 according to this embodiment is provided with linear adhesive sections 40F, etc., that bond the cover sheet 4 and the inner cover sheet 5 together, so that the cover sheet 4 and the inner cover sheet 5 are not bonded between each linear adhesive section 40F, etc., thereby suppressing a rough feel against the wearer's skin. As a result, the diaper 1 according to this embodiment can suppress a decrease in wearing comfort.

[0050] Furthermore, if the shape and extension direction of the adhesive portion differ in each region of the diaper 1, for example, in the areas where the elastic threads 4F1 and 4R1 are placed, or in the areas where the elastic threads 4F2 and 4R2 are placed, the way the outer sheet wrinkles will differ in each region, resulting in a poor appearance of the diaper. In contrast, in the diaper 1 according to this embodiment, the extension direction of the linear adhesive portion 40F, etc., is the same throughout all regions, so the way the outer sheet wrinkles is uniform in each region, and the appearance is not compromised.

[0051] Furthermore, when the diaper 1 is divided into multiple regions in the longitudinal direction, the spacing between linear adhesive portions 40F, etc., is the same in each region. For example, the diaper 1 can be divided into a region where elastic threads 4F1 and 4R1 are located (an example of the "first region" in this application), a region where elastic threads 4F2 and 4R2 are located (an example of the "second region" in this application), and a region closer to the crotch than the region where elastic threads 4F2 and 4R2 are located (an example of the "third region" in this application). The first region is a region adjacent to the edge of the body opening that forms the body opening 2T shown in Figure 1, and is the region where elastic threads 4F1 and 4R1 are located. The second region is adjacent to the first region on the crotch region 1B side, and is the region where elastic threads 4F2 and 4R2 are located. The third region is adjacent to the second region on the crotch region 1B side, and is a region where no stretchable members such as elastic threads extending in the width direction are located between the cover sheet 4 and the inner cover sheet 5. Note that the area where the elastic thread 4F3, which crosses in the width direction, is placed is not included in the third area.

[0052] In the areas where the elastic threads 4F1 and 4R1 are located, the spacing between the multiple adhesive sections 40F and 40R is the same. In other words, the multiple elastic threads 4F1 and 4R1 are arranged with the same spacing. Also, in the areas where the elastic threads 4F2 and 4R2 are located, the spacing between the multiple adhesive sections 41F and 41R is the same. In other words, the multiple elastic threads 4F2 and 4R2 are arranged with the same spacing. Furthermore, in the area below the crotch where the elastic threads 4F2 and 4R2 are located, the spacing between the multiple adhesive sections 42F and 42R is the same. In diaper 1, since the required adhesive strength differs in each area, by making the distance between the linear adhesive sections 40F etc. uniform in each area, the overall texture and appearance change are made uniform, and it is prevented that the adhesive strength is excessive or insufficient in each area.

[0053] Furthermore, the spacing between adhesive sections 42F and 42R in the area below the crotch where elastic threads 4F2 and 4R2 are placed is wider than the spacing between adhesive sections 40F and 40R in the area where elastic threads 4F1 and 4R1 are placed, and is no more than three times wider. Similarly, the spacing between adhesive sections 42F and 42R in the area below the crotch where elastic threads 4F2 and 4R2 are placed is wider than the spacing between adhesive sections 41F and 41R in the area where elastic threads 4F2 and 4R2 are placed, and is no more than three times wider. In summary, the spacing between adhesive sections 42F and 42R in areas where elastic threads are not placed is wider than the spacing between adhesive sections 40F and 40R and between adhesive sections 41F and 41R in the areas where elastic threads 4F1 and 4R1, and elastic threads 4F2 and 4R2 are placed, and is no more than three times wider. The spacing between each adhesive part is widest between adhesive parts 42F and 42R, followed by adhesive parts 41L and 41R, and narrowest between adhesive parts 40L and 40R. By configuring it in this way, the diaper 1 according to this embodiment can minimize the difference in feel and appearance between areas where elastic threads are not placed (adhesive parts 42F and 42R), areas where elastic threads 4F2 and 4R2 are placed (adhesive parts 41F and 41R), and areas where elastic threads 4F1 and 4R1 are placed (adhesive parts 40F and 40R). In addition, the spacing between adhesive parts of the diaper 1 gradually widens from the edge of the waist opening 2T towards the crotch, gradually decreasing the rigidity towards the crotch, thus making it softer to the touch. Furthermore, by making the spacing between the adhesive parts 42F and 42R the widest, followed by the spacing between the adhesive parts 41L and 41R, and then the spacing between the adhesive parts 40L and 40R the narrowest, the rigidity is increased near the torso opening 2T, and the area where the elastic threads 4F1 and 4R1 are placed comes into relatively strong contact with the wearer's skin, thereby preventing the torso area 2D from shifting when worn.

[0054] As mentioned above, the spacing between adhesive portions 42F and 42R in the area below the crotch, rather than the area where the elastic threads 4F2 and 4R2 are located, is wider than the spacing between adhesive portions 41F and 41R in the area where the elastic threads 4F2 and 4R2 are located, and is no more than three times wider. The crotch area 1B requires particular breathability. By reducing the area of ​​adhesive portions 41F and 41R, diaper 1 can reduce the amount of non-breathable adhesive portion and achieve the necessary breathability.

[0055] Furthermore, because the crotch area 1B of diaper 1 is held between the wearer's thighs, odors can be detected in the crotch area 1B. In this case, the edges of the outer sheet would dig into the thighs. On the other hand, the front body region 1F of diaper 1 conforms to the wearer's abdomen, and the back body region 1R of diaper 1 conforms to the wearer's buttocks and back, so the outer sheet does not dig into the wearer's skin in the front body region 1F and the back body region 1R. For this reason, if the entire widthwise edge of the outer sheet is bonded in the crotch region 1B, that edge becomes hard and uncomfortable against the skin. However, by spacing the bonded parts apart in the longitudinal direction in this area, the skin contact can be made softer.

[0056] Furthermore, the diaper 1 is provided with full-surface adhesive sections 43FL, 43FR, 43RL, and 43RR, which are located adjacent to the adhesive sections 42F and 42R at the end sides in the width direction of the cover sheet 4 and inner cover sheet 5, and are also provided along the widthwise extension line between the adhesive sections 42F and 42R, to which the cover sheet 4 and inner cover sheet 5 are bonded. The full-surface adhesive sections 43FL, 43FR, 43RL, and 43RR are formed by applying hot melt adhesive to the entire surface of their formation area. The full-surface adhesive sections 43FL, 43FR, 43RL, and 43RR are formed while avoiding the crotch area 1B. As a result, the crotch area 1B is located between the full-surface adhesive sections 43FL and 43RL on the left side of the diaper 1, and between the full-surface adhesive sections 43FR and 43RR on the right side of the diaper 1. In this way, by configuring the diaper 1 so that the crotch area 1B is sandwiched between the full-surface adhesive portions when viewed in the longitudinal direction, the full-surface adhesive portions 43FL, 43FR, 43RL, and 43RR function as beams in the longitudinal direction of the diaper 1, making it difficult for the crotch area 1B to shrink.

[0057] Furthermore, the full-surface adhesive sections 43FL, 43FR, 43RL, and 43RR are located at the widthwise ends of the diaper 1. When viewing the diaper 1 in the widthwise direction, a linear adhesive section 42F is located between the full-surface adhesive section 43FL and the full-surface adhesive section 43FR, and a linear adhesive section 42R is located between the full-surface adhesive section 43RL and the full-surface adhesive section 43RR. By providing full-surface adhesive sections at both ends in the widthwise direction of the diaper 1 in this way, the central part in the widthwise direction, which is between the full-surface adhesive sections, can be made less prone to shrinkage.

[0058] Furthermore, as shown in Figure 1, the diaper 1 includes a left lower limb opening 2L and a right lower limb opening 2R through which the wearer's lower limbs are inserted. The lower limb opening edges 2KL and 2KR that form the lower limb openings 2L and 2R are formed including a cover sheet 4 and an inner cover sheet 5. Also, as shown in Figure 4, the full-surface adhesive portions 43FL and 43RL are formed along the lower limb opening edge 2KL up to the lower limb opening edge 2KL. Similarly, the full-surface adhesive portions 43FR and 43RR are formed along the lower limb opening edge 2KR up to the lower limb opening edge 2KR. As a result, in the lower limb opening edges 2KL and 2KR that extend diagonally with respect to the longitudinal direction of the diaper 1, i.e., the lower limb opening edges 2KL and 2KR other than the crotch area 1B, a full-surface adhesive portion can be provided throughout the entire area without any areas being formed where the cover sheet 4 and the inner cover sheet 5 are not adhered. As a result, the texture of the widthwise edges of the outer sheet can be made uniform throughout the entire area.

[0059] The elastic threads 4F3 and 4R3 are bonded to the cover sheet 4 and inner cover sheet 5 by the full-surface adhesive portions 43FL, 43FR, 43RL, and 43RR. The elastic threads 4F3 and 4R3 extend from the crotch area 1B side of the side seal portions SL and SR along the lower limb opening edges 2KL and 2KR. The elastic threads 4F3 and 4R3 form leg gathers that contract the lower limb openings 2L and 2R. In this embodiment, by bonding the elastic threads 4F3 and 4R3 at each full-surface adhesive portion, it is possible to prevent the elastic threads 4F3 and 4R3 used for forming leg gathers from falling off.

[0060] Furthermore, in the crotch area 1B, the adhesive portions 42F and 42R extend from the center in the width direction of the diaper 1 to both ends in the width direction. Thus, in the crotch area 1B, the cover sheet 4 and the inner cover sheet 5 are bonded not by a full-surface adhesive portion, but by linear adhesive portions 42F and 42R. This allows diaper 1 to suppress a decrease in skin feel in the crotch area 1B.

[0061] Furthermore, a full-surface adhesive section 44 is provided in the widthwise center of the front body region 1F (ventral side) of the crotch region 1B, connected to the full-surface adhesive sections 43FL and 43RL. The full-surface adhesive section 44 traverses the widthwise center of the diaper 1, including the area corresponding to the wearer's pubic bone. The full-surface adhesive section 44 is formed with hot-melt adhesive and, like the full-surface adhesive sections 43FL and 43RL, adheres the cover sheet 4 and the inner cover sheet 5, and the full-surface adhesive sections 43FL, 43RL, and 44 are formed integrally.

[0062] The area where the full-surface adhesive portion 44 is provided has higher rigidity compared to the area where linear adhesive portions 40F or the like, which are not fully adhesive, are provided. In this embodiment, the diaper 1 can increase the rigidity of the outer sheet on the ventral side rather than the crotch area by providing the full-surface adhesive portion 44. The areas where the full-surface adhesive portion 44 is formed are the crotch adjacent area adjacent to the crotch area and the pubic bone corresponding area corresponding to the wearer's pubic bone. Since the areas where the full-surface adhesive portion 44 is formed have higher rigidity than other areas, even if the crotch area 1B shrinks in the width direction due to being pinched between the wearer's legs, this shrinkage can be prevented from being transmitted to the front body area 1F side (ventral side), thereby suppressing the decrease in wearing comfort caused by this shrinkage.

[0063] Furthermore, the full-surface adhesive area 44 includes a region where the elastic thread 4F3 traverses in the width direction, and the elastic thread 4F3 is bonded to the cover sheet 4 and the inner cover sheet 5. Because the central part in the width direction is pulled outward by the contractile force of the elastic thread 4F3, shrinkage of the central part in the width direction of the diaper 1 within the full-surface adhesive area 44 can be further suppressed.

[0064] Furthermore, the full-surface adhesive sections 43RL and 43RR are positioned on both sides of the anal-compatible area 45, which corresponds to the wearer's anus. In other words, the area corresponding to the wearer's anus does not have a full-surface adhesive section to fully bond the cover sheet 4 and the inner cover sheet 5. By forming the full-surface adhesive sections 43RL and 43RR to extend to both sides of the anal-compatible area 45, both sides of the anal-compatible area 45 are made highly rigid, allowing these sides to conform to the wearer's skin surface and keeping the anal-compatible area 45 away from the wearer's skin surface (anus). The anal-compatible area 45 is the area corresponding to the wearer's anus and is also the area where feces expelled by the wearer remain. By keeping the anal-compatible area 45 away from the skin surface, the diaper 1 can suppress the pressure of feces on the wearer's skin.

[0065] Furthermore, the elastic thread 4R3 on the back panel area 1R side does not have elasticity in the central part of the width direction of the diaper 1, as the two elastic threads 4R3 are not connected. In other words, the elastic thread 4R3 does not extend to the anal area 45, but extends within the formation areas of the full-surface adhesive parts 43RL and 43RR. The contractile force of the elastic thread 4R3 pulls the anal area 45 outward, allowing the anal area 45 to be moved further away from the skin. Also, the elastic thread 4R3 extends to the area that overlaps with the absorbent core 8c when viewed in the thickness direction. In the extended area of ​​the elastic thread 4R3, the inner cover sheet 5 and the back sheet 6 are bonded together, so the elastic thread 4R3 and the absorbent core 8c are indirectly bonded together via the inner cover sheet 5, the back sheet 6, and the core wrap sheet 7. The contractile force of the elastic thread 4R3 pulls the anal area 45 outward, which in turn separates the absorbent core 8c within the anal area 45 from the skin surface.

[0066] Furthermore, the diaper 1 is provided with another expandable member that extends in a direction perpendicular to the linear adhesive portion 40F, etc., when viewed from above. The other expandable member may be, for example, the elastic threads 10L1 and 10R1 for the three-dimensional gathers 3BL and 3BR shown in Figure 2, or an elastic thread separately provided between the cover sheet 4 and the inner cover sheet 5. When the linear adhesive portions 40F, etc., which extend in the width direction of the diaper 1 are spaced apart in the longitudinal direction, the outer sheet shrinks in the longitudinal direction due to the above-mentioned other expandable member, and the non-adhesive area between the linear adhesive portions 40F, etc. The outer sheet located in the area can form wrinkles that extend in the width direction. Because these wrinkles are aligned throughout the entire area, the diaper 1 has a uniform appearance. If the above-mentioned additional stretchable member is not provided, it is difficult to control the direction of the wrinkles in the outer sheet, and the absorbent material may become distorted due to the direction of these wrinkles, which may reduce the comfort of wearing the diaper 1. The diaper 1 according to this embodiment is provided with the above-mentioned additional stretchable member, so the reduction in comfort can be suppressed.

[0067] Furthermore, the lower limb opening edges 2KL and 2KR have curves with multiple inflection points. At the inflection points of the lower limb opening edges 2KL and 2KR, the cutting direction of the blade of the cutting device used to form the lower limb openings 2L and 2R changes, which may make it difficult to cut the cover sheet 4 and inner cover sheet 5 of the diaper 1. In this embodiment, the full-surface adhesive portions 43FL, 43FR, 43RL, and 43RR are provided including the inflection points of the lower limb opening edges 2KL and 2KR. This makes it easier to cut the sheet along the lower limb opening edges 2KL and 2KR even at these inflection points, and allows for high-precision cutting of the lower limb opening area 2L and 2R.

[0068] <Variation> Next, a modified diaper 1 according to this embodiment will be described. Figure 5 is an exploded perspective view of the diaper 1 according to this modified embodiment. In the diaper 1 according to this modified embodiment, the absorbent body 8 has an absorbent core 8c consisting of a plurality of mats and a core wrap sheet 7 that encloses the absorbent core 8c. As shown in Figure 5, the absorbent core 8c has an upper absorbent mat 8a and a lower absorbent mat 8b. The upper absorbent mat 8a is roughly hourglass-shaped with a constricted portion, and the lower absorbent mat 8b is rectangular. The width of the lower absorbent mat 8b is also roughly the same as the width of the constricted portion of the upper absorbent mat 8a. Thus, the absorbent core 8c may be composed of two layers of mats.

[0069] <Other Embodiments> Next, other embodiments will be described. In the above embodiments, the linear adhesive portion 40F, etc., is formed in a linear shape that is continuous in the width direction, but it may also be formed in a dotted line shape that is discontinuous in the width direction.

[0070] The embodiments and variations disclosed above can be combined in any way. [Explanation of Symbols]

[0071] 1B: Inseam area 1F: Front bodice area 1R: Back panel area 2L:Left lower limb opening 2R: Right lower limb opening 2T: Body opening 2KL, 2KR: Lower limb opening edge 2KL, 2KR 3BL, 3BR: Three-dimensional gathers 3LL, 3LR: Leg Gather 3R: Waist Gather 4: Cover sheet 4F1, 4F2, 4F3: Elastic thread 4F4, 4F5: Edge 4FF: Folding line 4R1, 4R2, 4R3: Elastic thread 4R4, 4R5: Fate 4RF: Loopback Line 5: Inner cover sheet 6: Back seat 7: Core wrap sheet 8: Absorbent material 8a: Upper layer absorbent mat 8b: Lower layer absorbent mat 9: Top sheet 10L: Side Seat 10L1: Elastic thread 10L2: Turnaround line 10R: Side seat 10R1: Elastic thread 10R2: Turnaround line 11F, 11R: End sheet 40, 41, 42: Adhesive part 43FL, 43FR, 43RL, 43RR: Fully adhesive area 44...Full surface adhesive part 45·Anal abutment area

Claims

1. An absorbent article having a length along the longitudinal direction and a length along the width direction perpendicular to the longitudinal direction, wherein when worn, a front body region located on the abdominal side of the wearer, a crotch region located in the crotch area and provided with an absorbent material, and a back body region located on the back side are arranged in this order along the longitudinal direction, An exterior sheet comprising an outer cover sheet forming an exterior surface and an inner cover sheet laminated on the skin side of the outer cover sheet, An adhesive portion for bonding the outer cover sheet and the inner cover sheet, comprising a plurality of adhesive portions that extend along the width direction and are formed spaced apart from each other, A side seal portion is provided to join the ends in the width direction of the front body region and the back body region of the outer sheet, so as to form a waist portion having a waist opening through which the wearer's torso is inserted, In the body portion, a plurality of expandable members are arranged to extend along the width direction between the outer cover sheet and the inner cover sheet, and are bonded to the outer cover sheet and the inner cover sheet by the adhesive portion, Equipped with, When the absorbent article is divided into multiple regions in the longitudinal direction, the distance between the adhesive portions is the same in each region. The aforementioned plurality of expandable members are composed of a plurality of first expandable members and a plurality of second expandable members. The aforementioned multiple regions are, A first region adjacent to the edge of the body opening that forms the body opening, wherein the plurality of first expandable members extending along the width direction are arranged in the first region, A second region adjacent to the first region on the crotch region side, wherein the plurality of second stretchable members extending along the width direction are arranged in the second region, It consists of, The third region is adjacent to the second region on the crotch region side and includes the third region in which the stretchable member is not located. The spacing between the adhesive portions in the third region is wider than the spacing between the adhesive portions in the second region. In the first and second regions, the outer cover sheet and the inner cover sheet are not bonded between the plurality of adhesive portions. Absorbent material.

2. The distance between the adhesive portions in the region where the expandable member is not placed is wider than the distance between the adhesive portions in the region where the expandable member is placed, and is no more than three times that distance. The absorbent article according to claim 1.

3. When the absorbent article is viewed in plan, it includes another expandable member that extends in a direction perpendicular to the plurality of adhesive portions. The absorbent article according to claim 1 or 2.

4. The outer cover sheet is provided with a full-surface adhesive portion located adjacent to the adhesive portion at the end of the outer cover sheet in the width direction, and along the width extension line between the adhesive portions, the outer cover sheet and the inner cover sheet are also bonded together. The absorbent article according to claim 1 or 2.

5. The aforementioned full-surface adhesive portion is located at the end in the width direction, The absorbent article according to claim 4.

6. It comprises a pair of lower limb openings through which the wearer's lower limbs are inserted, The lower limb opening edge that forms the lower limb opening includes the outer sheet, The aforementioned fully bonded portion is It is formed along the edge of the lower limb opening, In the front body region, including the region corresponding to the wearer's pubic bone, the central part in the width direction is crossed, In the aforementioned back body region, the following are arranged on both sides, flanking the region corresponding to the wearer's anus: The absorbent article according to claim 4.

7. A third stretchable member is bonded to the outer cover sheet and the inner cover sheet by the aforementioned full-surface adhesive portion, and comprises a third stretchable member that extends from the crotch region side of the side seal portion along the lower limb opening. The absorbent article according to claim 6.

8. The third stretchable member is positioned on the front body area side and the back body area side, The third expandable member on the front body region side crosses the central part in the width direction. In the rear bodice region, the third stretchable member is arranged on both sides in the width direction, and the third stretchable member on both sides is not connected in the center in the width direction. The absorbent article according to claim 7.

9. The aforementioned lower limb opening edge is composed of a curve having multiple inflection points, The aforementioned full-surface adhesive portion is provided including the inflection point in the portion of the front body region and the portion of the back body region on the crotch side. The absorbent article according to claim 6.

10. In the crotch area, the adhesive portion extends from the center in the width direction to both ends in the width direction. The absorbent article according to claim 1 or 2.

11. A top sheet having a water-permeable region provided on the skin-facing side of the absorbent, A non-permeable backsheet covers the non-skin side of the absorbent material, A side sheet for forming three-dimensional gathers, comprising a non-permeable side sheet positioned on the skin-facing side of the top sheet, An absorbent article according to claim 1 or 2, comprising the following:

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