Absorbent articles

Abstract

To provide an absorbent article capable of suppressing decline of feeling of wearing.SOLUTION: An absorbent article includes: an exterior sheet having an outer cover sheet forming an exterior surface, and an inner cover sheet laminated on a skin surface side of the outer cover sheet; and a plurality of filamentous adhesion parts provided mutually intermittently in a longer direction, in which the outer cover sheet and the inner cover sheet are bonded.SELECTED DRAWING: Figure 4

Description

Technical Field

[0006] ,

[0007] ,

[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, a sheet forming an outer surface and a sheet material laminated on the wearer side of the sheet are adhered. In an absorbent article, if an adhesive is applied to the entire surface of these sheets in the crotch region and adhered over the entire surface, the skin contact with respect to the wearer's crotch deteriorates, and the wearing feeling in the crotch region decreases. However, no specific adhesion form of the sheet considering the wearing feeling has been proposed.

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

Means for Solving the Problems

[0006] To solve the above problems, in the present invention, a plurality of linear 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, arranged 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, and a plurality of linear adhesive portions that bond the outer cover sheet and the inner cover sheet at the width direction end of the crotch region, which are provided intermittently with each other in the longitudinal direction.

[0008] The absorbent article may be positioned on the widthwise end side of the outer sheet, on the front body area side and the back body area side of the linear adhesive portion, and may have a full-surface adhesive portion to which the outer cover sheet and the inner cover sheet are bonded.

[0009] In the absorbent article described above, the full-surface adhesive portion may be located at the end in the width direction.

[0010] The absorbent article described above has a lower limb opening through which the wearer's lower limb is inserted, the lower limb opening edge forming the lower limb opening includes the outer sheet, and the full adhesive portion may be formed along the lower limb opening edge up to the lower limb opening edge.

[0011] In the absorbent article described above, the lower limb opening edge is composed of a curve having multiple inflection points, and the entire adhesive portion is the portion on the crotch side of the front body region and the back body region. The inflection point may be included in the arrangement.

[0012] In the absorbent article described above, the outer sheet has a waist opening through which the wearer's waist circumference is inserted, and a pair of lower limb openings through which the wearer's lower limbs are inserted. The absorbent article has an expandable member provided on the outer sheet in an extended state, which is located along one of the lower limb openings on the front body region side, crosses the crotch region side in the width direction, and extends along the other lower limb opening. In the overlapping region of the crotch region where the expandable member and the absorbent body overlap, there is a non-adhesive region where the absorbent body and the outer sheet are not adhered. When viewed in the thickness direction, the linear adhesive portion may be located on the crotch side of the non-adhesive region.

[0013] In the absorbent article described above, the non-adhesive area may be located in the adjacent front portion of the crotch area. [Effects of the Invention]

[0014] According to the present invention, it is possible to suppress the decrease in wearing comfort in the crotch area. [Brief explanation of the drawing]

[0015] [Figure 1] Figure 1 is a perspective view of an adult disposable pull-up diaper according to Embodiment 1. [Figure 2] Figure 2 is an exploded perspective view of the diaper according to Embodiment 1. [Figure 3] Figure 3 is an exploded view of the diaper according to Embodiment 1. [Figure 4] Figure 4 is an exploded view of the diaper according to Embodiment 1. [Figure 5] Figure 5 is an exploded perspective view of the diaper according to Embodiment 2. [Figure 6] Figure 6 is an exploded view of the diaper according to Embodiment 3. [Modes for carrying out the invention]

[0016] <Embodiment 1> Hereinafter, a diaper according to Embodiment 1 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.

[0017] FIG. 1 is a perspective view of a pants-type disposable diaper for adults according to an embodiment (hereinafter simply referred to as "diaper"). In the diaper, the direction connecting the front body portion disposed facing the abdomen of the wearer and the back body portion disposed facing the back is defined as the longitudinal direction. Between these front body portions (one side in the longitudinal direction) and the back body portions (the other side in the longitudinal direction) (the center in the longitudinal direction), there is a crotch portion disposed (opposite to the groin) under the crotch of the wearer. 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 opposite side of 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. In addition, viewing from the thickness direction is defined as a 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 crotch of the wearer. Also, the terms related to the directions used in the present application shall mean the directions that coincide with 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 that coincides with the left and right of the wearer in the state where the diaper 1 is worn by the wearer.

[0018] In the present embodiment, as an example of the absorbent article, a pants-type disposable diaper having a tubular structure with an opening into which the wearer's abdominal circumference fits and a pair of left and right openings through which the left and right lower limbs of the wearer are inserted is exemplified. However, the "absorbent article" referred to in the present application is not limited to the pants-type disposable diaper for adults. The "absorbent article" referred to in the present application includes disposable diapers of the pants type for children is included. Also, various forms of absorbent articles that can wrap the abdominal circumference and the crotch are included, such as a tape-type disposable diaper in which a tape fixed near one end of a sheet-like member that covers the crotch (genital area) of the wearer from the front body portion to the back body portion is attached near the other end of the sheet-like member to form a tubular structure.

[0019] 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 (an example of the "torso opening" in this disclosure) 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 applied, and a right lower limb opening 2R formed on the right side of the crotch region 1B. When the diaper 1 is worn, with the wearer's left lower limb inserted through the left lower limb opening 2L, the wearer's right lower limb inserted through the right lower limb opening 2R, and the wearer's torso inserted through the torso opening 2T, the front body region 1F is positioned on the wearer's abdominal side, the back body region 1R is positioned on the wearer's back side, and the left lower limb opening 2L and the right lower limb opening 2R surround the wearer's thighs and are fixed to the wearer's body. Since the diaper 1 is fixed to the wearer's body in this manner, the wearer can move freely while wearing the diaper 1.

[0020] The diaper 1 has an absorber capable of absorbing and holding liquid mainly disposed around the crotch region 1B. Also, in the diaper 1, in order to suppress the formation of a gap serving as a liquid outflow path between the diaper 1 and the wearer's skin, a three-dimensional gather 3BL is provided at the left lower limb opening 2L that surrounds the thigh of the wearer's left lower limb, a three-dimensional gather 3BR is provided at the right lower limb opening 2R that surrounds the thigh of the wearer's right lower limb, and a waist gather 3R is provided at the torso surrounding portion 2D that surrounds the wearer's abdominal girth. Also, leg gathers 3LL and 3LR are provided at positions surrounding the bases of the wearer's legs. The three-dimensional gathers 3BL and 3BR and the waist gather 3R adhere to the wearer's skin by the elastic force of the thread rubber. Also, the leg gathers 3LL and 3LR prevent a gap from being formed between the bases of the wearer's legs and the diaper 1. Therefore, the excretions discharged from the wearer's genitals are absorbed by the absorber of the diaper 1 almost without leaking from the diaper 1.

[0021] The diaper 1 can be used in combination with an inner pad (not shown). The inner pad is a substantially rectangular absorbent article provided with an absorber and absorbs the discharged liquid. When using the diaper 1 and the inner pad in combination, the inner pad is placed on the skin side of the diaper 1 so as to abut against the discharge hole of the wearer. The discharged liquid is first absorbed by the inner pad, and only the discharged liquid that cannot be absorbed by the inner pad reaches the absorber of the diaper 1 and is further absorbed. For this reason, even when the amount of the discharged liquid is large, it is possible to prevent the discharged liquid from leaking from the diaper 1. Also, when the amount of the discharged liquid is small and can be completely absorbed by the inner pad, only the inner pad needs to be replaced even when the discharged liquid is generated, so that the assistance cost can be reduced. Also, the diaper 1 can be used for a long time.

[0022] Figure 2 is an exploded perspective view of the diaper 1 according to Embodiment 1. The diaper 1 has a cover sheet 4 (an example of the "outer cover sheet" in the present application) and an inner cover sheet 5. The cover sheet 4 and the inner cover sheet 5 are roughly hourglass-shaped (gourd-shaped) sheets that are bonded together to form the outer surface of the diaper 1, and are identical in shape except for the ends on the front body area 1F and the back body area 1R. When worn by a person, the cover sheet 4 is laminated on the side that does not touch the wearer's skin, and the inner cover sheet 5 is laminated on the side that touches the wearer's skin. Between the cover sheet 4 and the inner cover sheet 5, elastic threads are provided to form the waist gather 3R and the leg gathers 3LL and 3LR. Alternatively, a stretchable material such as a strip of elastic can be selected as appropriate instead of the elastic threads.

[0023] The cover sheet 4 and 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).

[0024] 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 is a sheet-like member that is positioned on the wearer's skin side so as to cover the absorbent surface of the absorbent core 8. This top sheet 9 is liquid-permeable in part or all of its form. Therefore, when diaper 1 is worn, liquid discharged from the wearer penetrates the absorbent core 8 through the top sheet 9, which can come into contact with the wearer's skin, and is absorbed there. Examples of liquid-permeable sheets include woven fabrics, nonwoven fabrics, and porous films. The top sheet 9 may also be hydrophilic.

[0025] The absorbent body 8 comprises an absorbent core 8c made of one mat 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 is roughly hourglass-shaped with a constricted portion. 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 the shape of the absorption core 8c include rectangular, elliptical, and various other shapes.

[0026] The core wrap sheet 7 is a thin, liquid-permeable sheet, and 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, but it may also 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). The absorbent body 8 is back The core wrap sheet 7 is not included, as it is wrapped in sheet 6 and top sheet 9, and these sheets also help to prevent deformation.

[0027] 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.

[0028] 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, when the left edge 4F4 of the front body region 1F and the left edge 4R4 of the back body region 1R of the cover sheet 4 are joined to each other, and the right edge 4F5 of the front body region 1F and the right edge 4R5 of the back body region 1R of the cover sheet 4 are joined to each other, the diaper 1 is completed as shown in Figure 1, and 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 will be described later). The method of joining the edges 4F4 and 4R4, and edges 4F5 and 4R5 is not particularly limited, but can be done by heat sealing, high-frequency sealing, ultrasonic sealing, etc.

[0029] 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.

[0030] Figure 3 is a schematic diagram showing the diaper 1 according to Embodiment 1 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) is 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, 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 placed along the fold line 4FF, which, when folded, forms the upper edge of the front bodice area 1F, in the order of elastic thread 4F1 and then elastic thread 4F2 from the fold line 4FF side. The elastic threads 4R1 and 4R2 are also placed along the upper edge of the back bodice area 1R, similar to elastic threads 4F1 and 4F2, when folded. Along the folded edge line 4RF, which forms the edge, elastic threads 4R1 and 4R2 are provided in that order from the side of the folded edge line 4RF.

[0031] 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.

[0032] 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 keep the diaper 1 close to the wearer, prevent it from shifting, and prevent 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, they suppress the shifting of the inner pad.

[0033] 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 that is closer to the crotch area 1B than elastic threads 4F2 and 4R2. Elastic thread 4F3 is provided on the front body area 1F side so as to cross in the left-right direction. In the area where elastic thread 4F3 is provided so as to cross in the left-right direction, elastic thread 4F3 and the absorbent material 8 overlap in the thickness direction of the diaper 1. Also, the center of this crossing area in the width direction corresponds to the urethral opening of a female wearer when the diaper 1 is worn. Note that in the area where the absorbent material 8 overlaps when viewed in the thickness direction, the arrangement of elastic thread 4F3 is not limited to crossing as shown in Figure 3. The extension direction of elastic thread 4F3 only needs to have a width component, and preferably the width component of the extension direction of elastic thread 4F3 should be larger than the longitudinal component. 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 positioned in a curve towards the crotch area 1B and overlaps with a portion of the hourglass-shaped absorbent core 8c at its constricted portion. This configuration allows the placement areas of the elastic threads 4F3 and 4R3 to function as leg gathers.

[0034] The cover sheet 4 is folded back along the fold lines 4FF and 4RF and extends to the placement area of ​​the elastic threads 4F1 and 4R1, reinforcing the placement area of ​​the elastic threads 4F1 and 4R1 with the folded portion. The end sheets 11F and 11R are provided in the placement area of ​​the elastic threads 4F2 and 4R2 where the cover sheet 4 folded back along the fold lines 4FF and 4RF does not extend, reinforcing the placement area of ​​the elastic threads 4F2 and 4R2.

[0035] 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 consists of 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, which are stacked together. Because it is formed in this way, it can be said that it has a laminate made up of multiple sheets stacked on top of each other.

[0036] 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 Embodiment 1 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.

[0037] Specifically, in the crotch area 1B, multiple linear adhesive sections 5L are provided to bond the cover sheet 4 and the inner cover sheet 5. The multiple linear adhesive sections L5 are intermittently provided in the longitudinal direction of the diaper 1. In other words, each of the multiple linear adhesive sections L5 is spaced apart from the others in the longitudinal direction. The multiple linear adhesive sections L5 extend to the ends in the width direction. The linear adhesive sections L5 are formed by applying hot melt adhesive.

[0038] Furthermore, 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. 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. 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. Multiple adhesive portions 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 their stretched state, forming an annular stretchable portion that extends along the width direction of the diaper 1 in the waist area 2D.

[0039] 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.

[0040] Multiple adhesive portions 42F are formed spaced apart from each other. The adhesive portions 42F bond 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 bond the cover sheet 4 and the inner cover sheet 5 on the crotch area 1B side of the elastic thread 4FR. The adhesive portions 42F are located on the front body area 1F side of the linear adhesive portion 5L, and the adhesive portions 42R are located on the back body area 1R side of the linear adhesive portion 5L. The adhesive portions 42F and 42R bond the cover sheet 4 and the inner cover sheet 5 in the area where no elastic thread is placed between the cover sheet 4 and the inner cover sheet 5.

[0041] In this embodiment, the absorbent core 8c has a shape that is narrowed in the width direction at the longitudinal center of the diaper 1. The region where the absorbent core 8c is narrowed 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 is It extends along its longitudinal direction.

[0042] In this embodiment, since multiple linear adhesive portions L5 are provided in the crotch area 1B, the amount of hot melt adhesive applied in the crotch area 1B can be relatively reduced, making the outer sheets of the cover sheet 4 and inner cover sheet 5 more flexible. The diaper 1 softens the widthwise edges of the outer body, which are most likely to dig into the wearer's skin when worn, by providing multiple linear adhesive portions L5 at these widthwise edges, thereby suppressing a decrease in wearing comfort in the crotch area 1B.

[0043] Furthermore, 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 the second 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, the second linear adhesive section 40F, etc., which extends along the width direction is provided throughout the entire outer sheet.

[0044] 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 includes second linear bonding sections 40F, etc., that bond the cover sheet 4 and the inner cover sheet 5 together. This prevents the cover sheet 4 and the inner cover sheet 5 from being bonded between each of the second linear bonding sections 40F, etc., thus 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.

[0045] 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 second 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.

[0046] Furthermore, when the diaper 1 is divided into multiple regions in the longitudinal direction, the spacing between the second linear adhesive portions 40F, etc., is the same in each region. For example, the diaper 1 can be divided into regions where elastic threads 4F1, 4R1 are placed (for example, an example of the "first region"), regions where elastic threads 4F2, 4R2 are placed (for example, an example of the "second region"), and regions closer to the crotch than the regions where elastic threads 4F2, 4R2 are placed (for example, an example of the "third region"). The first region is the 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, 4R1 are placed. The second region is adjacent to the first region on the crotch region 1B side, and is the region where elastic threads 4F2, 4R2 are placed. The third region is adjacent to the second region on the crotch region 1B side, and is the region where no stretchable material such as elastic threads is placed between the cover sheet 4 and the inner cover sheet 5, excluding the crotch region 1B.

[0047] In the area 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 area 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 second linear adhesive sections 40F etc. uniform in each area, the overall texture and appearance change are made uniform. Furthermore, it prevents excessive or insufficient adhesive strength in each region.

[0048] Furthermore, the spacing between adhesive portions 42F and 42R in the area below the crotch where elastic threads 4F2 and 4R2 are placed is wider than and less than twice the spacing between adhesive portions 40F and 40R in the area where elastic threads 4F1 and 4R1 are placed. Similarly, the spacing between adhesive portions 42F and 42R in the area below the crotch where elastic threads 4F2 and 4R2 are placed is wider than and less than twice the spacing between adhesive portions 41F and 41R in the area where elastic threads 4F2 and 4R2 are placed. In summary, the spacing between adhesive portions 42L and 42R in areas where elastic threads are not placed is wider than and less than twice the spacing between adhesive portions 40F and 40R and adhesive portions 41F and 41R in the areas where elastic threads 4F1 and 4R1 and elastic threads 4F2 and 4R2 are placed. The area where the elastic threads 4F1, 4R1 and 4F2, 4R2 are located is the waist area 2D, and waist gathers are formed in the waist area 2D. The feel and appearance of the waist area 2D are due to the waist gathers, but the feel and appearance of the areas where gathers are not formed are due to the adhesive parts 42F, 42R. Therefore, by making the difference between the adhesive parts 42F, 42R in the areas where gathers are not formed and the difference between the adhesive parts 40F, 40R, 41F, 41R in the areas where waist gathers are formed less than twice, the diaper 1 can reduce the difference in feel and appearance between areas.

[0049] 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 at least twice as wide. The crotch area, in particular, requires breathability. By reducing the area of ​​adhesive portions 41F and 41R, diaper 1 can reduce the non-breathable adhesive area and achieve the necessary breathability.

[0050] Furthermore, since the crotch area 1B of diaper 1 is held between the wearer's thighs, the edges of the outer sheet dig into the thighs in the crotch area 1B. On the other hand, the front body area 1F of diaper 1 conforms to the wearer's abdomen, and the back body area 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 area 1F and the back body area 1R. For this reason, if the entire widthwise edge of the outer sheet is bonded in the crotch area 1B, that edge will become hard and uncomfortable against the skin. However, by spacing the linear bonding portions 5L apart in the longitudinal direction in this area, the skin contact can be made softer.

[0051] Furthermore, the diaper 1 is provided with full-surface adhesive sections 43FL, 43FR, 43RL, and 43RR, which are located adjacent to the adhesive sections 42L and 42R at the widthwise end sides of the cover sheet 4 and inner cover sheet 5, and are also located along the widthwise extension line between the adhesive sections 42L and 42R, where 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 areas. The full-surface adhesive sections 43FL, 43FR, 43RL, and 43RR are located adjacent to the front body area 1F and back body area 1R sides of the linear adhesive section 5L at the widthwise end sides of the outer sheet, and are areas where the cover sheet 4 and inner cover sheet 5 are fully bonded. On the left side of the diaper 1, the crotch area 1B is located between the full-surface adhesive sections 43FL and 43RL, and on the right side of the diaper 1, the crotch area 1B is located between the full-surface adhesive sections 43FR and 43RR. Furthermore, the full-surface adhesive sections 43FL and 43FR are connected at the center in the width direction and formed integrally. In this way, by configuring the diaper 1 so that the crotch area 1B is sandwiched between the full-surface adhesive sections when viewed in the longitudinal direction, the full-surface adhesive sections 43FL, 43FR, 43RL, and 43RR function as beams in the longitudinal direction of the diaper 1. This makes it possible to make the crotch area 1B less prone to shrinking.

[0052] Furthermore, the full-surface adhesive sections 43FL, 43FR, 43RL, and 43RR are located at the edges of the diaper 1 in the width direction. The adhesive portions are arranged in the following areas. When viewing the diaper 1 in the width direction, a linear adhesive portion 42F is positioned between the full-surface adhesive portion 43FL and the full-surface adhesive portion 43FR, and a linear adhesive portion 42R is positioned between the full-surface adhesive portion 43RL and the full-surface adhesive portion 43RR. By providing full-surface adhesive portions at both ends of the diaper 1 in the width direction in this way, the central part in the width direction, which is between the full-surface adhesive portions, can be made less prone to shrinkage.

[0053] 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.

[0054] 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.

[0055] Furthermore, the diaper 1 includes another expandable member that extends in a direction perpendicular to the linear adhesive portion 5L and the second linear adhesive portion 40F 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 portion 5L and the second linear adhesive portion 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 wrinkles extending in the width direction can be formed in the outer sheet located in the non-adhesive area between the linear adhesive portion 5L and the second linear adhesive portion 40F, etc. Since these wrinkles are aligned throughout the entire surface, 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 wrinkles in the outer sheet, and this direction of wrinkles may cause the absorbent material to become distorted, potentially reducing the wearing comfort of the diaper 1. The diaper 1 according to this embodiment is provided with the above-mentioned additional stretchable member, so the reduction in wearing comfort can be suppressed.

[0056] 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.

[0057] <Embodiment 2> Next, we will describe the diaper 1 according to Embodiment 2. Figure 5 is an example of an exploded perspective view of the diaper 1 according to Embodiment 2. Note that the same components as those of Embodiment 1 described above are used. Therefore, the same symbols are used, and their explanations are omitted.

[0058] In this embodiment, the absorbent body 8 has multiple mats. The absorbent body 8 has an absorbent core 8c consisting of multiple mats and a core wrap sheet 7 that encloses the absorbent core 8c. In this embodiment, 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 approximately the same as the width of the constricted portion of the upper absorbent mat 8a. Thus, the absorbent core 8c may be formed by laminating two layers of absorbent mats. The elastic threads 4F3 and 4R3 may be arranged on both the left and right sides and each may be cut in the center in the width direction.

[0059] <Embodiment 3> Next, we will describe the diaper 1 according to Embodiment 3. Figure 6 is an example of a schematic plan view showing the diaper according to Embodiment 3 in an unfolded and extended state. Note that components identical to those of Embodiment 1 described above are denoted by the same reference numerals and their descriptions are omitted.

[0060] The elastic thread 4F3 (an example of the "stretchable member" in this disclosure) is provided so as to traverse the crotch area 1B on the front body side in the left-right direction. More specifically, the elastic thread 4F3 is provided so as to run along the lower limb opening 2L on the front body area 1F side, traverse the crotch area 1B side in the width direction, extend along the lower limb opening 2R, and is provided on the outer sheet in an extended state.

[0061] In the region where the elastic thread 4F3 crosses, the inner cover sheet 5 and the absorbent 8 are not adhered (referred to as the non-adhered region 15). In practice, the inner cover sheet 5 and the back sheet 6 are not adhered in the non-adhered region 15. In this embodiment, the non-adhered region 15 is provided over the entire overlapping region of the crotch area 1B where the elastic thread 4F3 and the absorbent 8 overlap. Note that in Figure 6, the non-adhered region 15 is shown as filled in. The non-adhered region 15 is provided over the entire width of the back sheet 6.

[0062] In this embodiment, as shown in Figure 6, the non-adhesive region 15 extends toward the front body region 1F and the back body region 1R side than the portion where the elastic thread 4F3 crosses the crotch region 1B (hereinafter, this portion may be referred to as the "transverse portion of the elastic thread 4F3"). Also, as shown in Figure 6, the elastic thread 4F3 has a longitudinal component of the diaper 1 on the widthwise side of the diaper 1, beyond the absorbent material 8. Here, the longitudinal component refers to the component that extends and stretches along the longitudinal direction of the diaper 1, and even if the elastic thread 4F3 extends diagonally with respect to the longitudinal direction, the elastic thread 4F3 still has a longitudinal component.

[0063] The non-adhesive region 15 is formed to include the front body region 1F side of the extended region of the elastic thread 4F3, and furthermore, the outer widthwise portion of the elastic thread 4F3 that crosses the absorbent material 8 has a component that stretches in the longitudinal direction of the diaper 1. Therefore, the outer sheet (cover sheet 4 and inner cover sheet 5) in the non-adhesive region 15 is pulled towards the front body region 1F by the elastic thread 4F3, and the inner body including the absorbent material 8 is also pulled towards the front body region 1F by this outer sheet. With this configuration, the diaper 1 can prevent the absorbent material 8 from separating from the wearer's skin by pulling the absorbent material 8 on the skin-facing side of the non-adhesive region 15 towards the front body region 1F. Note that if the non-adhesive region 15 is formed to include the front body region 1F side beyond the extended region of the elastic thread 4F3, it can be pulled towards the front body region 1F by the elastic thread 4F3, and the inner body including the absorbent material 8 can also be pulled towards the front body region 1F.

[0064] The non-adhesive area 15 is located adjacent to the front of the crotch. More specifically, the non-adhesive area 15 is located at the position corresponding to the urethral opening of a female wearer and at the position corresponding to the wearer's groin.

[0065] Here, we will explain the case where the wearer of diaper 1 is female. When a woman wears diaper 1, the urethral opening is designed to be located approximately at the transverse portion of the elastic thread 4F3, i.e., the non-adhesive area 15. Therefore, the non-adhesive area 15 includes the area corresponding to the urethral opening of a female wearer. As mentioned above, the elastic thread 4F3 pulls the inner body, including the outer sheet and absorbent material 8, on the non-adhesive area 15 towards the front body area 1F, bringing the absorbent material 8 closer to the woman's urethral opening, making it easier for urine excreted from the urethral opening to penetrate the absorbent material 8. In this way, diaper 1 can suppress urine leakage.

[0066] Next, we will describe the case where the wearer of diaper 1 is male. When a male wears diaper 1, the transverse portion of the elastic thread 4F3, i.e., the non-adhesive area 15, is designed to be on the crotch area 1B side of the position of the male penis (male genitalia). In other words, the male penis is located on the front body area 1F side of the non-adhesive area 15. Thus, the non-adhesive area 15 is on the crotch area 1B side of the area corresponding to the penis. By using the elastic thread 4F3 to pull the inner body, including the outer sheet and absorbent material 8, on the non-adhesive area 15 toward the front body area 1F, diaper 1 can press the absorbent material 8 against the back of the testicles and create a space to hold the penis in the area corresponding to the penis. Since male wearers urinate from the urethral opening of the penis, diaper 1 can control the direction of urination and suppress urine leakage by holding the penis.

[0067] Furthermore, when a man wears the diaper 1, the design ensures that the testicles are positioned approximately where the elastic thread 4F3 crosses the crotch area 1B. Therefore, the area where the elastic thread 4F3 crosses the crotch area 1B includes the area corresponding to the testicles of the male wearer. The absorbent material 8 expands along with the bulge of the testicles, but the elastic thread 4F3 lifts the absorbent material 8, allowing the testicles to be held in place. In addition, even if the position of the testicles shifts or the position of the testicles relative to the diaper 1 differs depending on the wearer, the non-adhesive area 15 allows the relative position of the crossing portion of the elastic thread 4F3 to be moved, and the elastic thread 4F3 lifts the absorbent material 8 in the area where the testicles are located, allowing the testicles to be held in place.

[0068] Furthermore, by providing a non-adhesive area 15, the diaper 1 can suppress the contraction of the absorbent material 8 at the crossing portion of the elastic thread 4F3. If the absorbent material contracts and comes into contact with the wearer's skin, it will cause discomfort to the wearer and reduce the wearing comfort. The diaper 1 according to this embodiment can suppress the reduction in wearing comfort by suppressing the contraction of the absorbent material 8. In addition, if the absorbent material contracts after absorbing urine, the pulp may break down. The diaper 1 according to this embodiment can suppress deformation of the absorbent material 8 by suppressing the contraction of the absorbent material 8.

[0069] Furthermore, the diaper 1 is provided with elastic threads 4R3 on the outer sheet in an extended state, along the left and right lower limb openings 2L and 2R on the wearer's back. The area between the left and right elastic threads 4R3 facing each other in the crotch area 1B becomes the anal area 45, which corresponds to the wearer's anus. In Figure 6, the anal area 45 is shown enclosed by a dotted line. The elastic threads 4R3 do not have elasticity in the central part of the width direction of the diaper 1 because the elastic threads 4R3 on both sides are not connected in that central part in the width direction. In other words, the elastic threads 4R3 do not extend to the anal area 45, and the anal area 45 is pulled outward by the contractile force of the elastic threads 4R3, so that the anal area 45 can be moved further away from the skin surface. As a result, the diaper 1 can form a stool-retaining space for accumulating stool in the anal area 45. Diaper 1 can suppress the decrease in wearing comfort caused by stool sticking to the wearer's skin or getting into the gluteal cleft of the buttocks, by forming a stool-retaining space.

[0070] Here, the arrangement relationship between the non-adhesive area 15 and the linear adhesive portion 5L will be explained. Note that Figure 6 shows the non-adhesive area 15 between the inner cover sheet 5 (outer sheet) and the back sheet 6 (inner body). Similar to Figure 4, in this embodiment, the second linear adhesive portion 40F and other areas, as well as the full-surface adhesive portions 43FL, 43FR, 43RL, and 43RR, are formed. Thread elastic 4F3 ,4R3 is fully bonded to the exterior sheet by the full-surface adhesive sections 43FL, 43FR, 43RL, and 43RR.

[0071] The non-adhesive area 15 generally overlaps with the widthwise inner side (crotch side) of the full-surface adhesive sections 43FL and 43FR shown in Figure 4, and the multiple linear adhesive sections 5L are located on the crotch side of the non-adhesive area 15. On the non-skin side of the non-adhesive area 15, the elastic thread 4F3 contracts, pulling the outer sheet inward in the widthwise direction. On the crotch side (back side) of the non-adhesive area 15, the outer sheet and the back sheet The inner body, including the back sheet 6 and the absorbent material 8, is bonded to the back sheet 6 by linear adhesive portions 5L from the center in the width direction at a predetermined width. As a result, the outer sheet folds downward (towards the non-skin side) starting from the frontmost linear adhesive portion 5L. When the diaper 1 is worn in this state, the widthwise end of the crotch area follows the inner thigh of the wearer. The diaper 1 can be made softer against the skin by the linear adhesive portions 5L being spaced apart from each other in the longitudinal direction in the crotch area, and furthermore, the widthwise end of the crotch area follows the inner thigh, preventing the outer sheet from digging into the skin. This allows the diaper 1 to suppress a decrease in wearing comfort in the crotch area 1B. In addition, after forming the linear adhesive portions 5L, the outer sheet is cut along the lower limb opening edges 2KL, 2KR (see Figure 4) to form the left and right lower limb openings 2L, 2R. At the widthwise end of the position where the linear adhesive portions 5L are formed, the outer sheet becomes fuzzy and bulky due to the cutting of the outer sheet. This allows the outer sheet of diaper 1 to feel softer against the skin when the widthwise edge of the crotch area is positioned along the inner thigh.

[0072] <Other Embodiments> Next, other embodiments will be described. In embodiments 1 and 3 described above, the linear adhesive portion 5L and the second linear adhesive portion 40F are formed as continuous lines in the width direction, but they may also be formed as discontinuous dotted lines in the width direction.

[0073] The embodiments and variations disclosed above can be combined in any way. [Explanation of Symbols]

[0074] 1B: Inseam area 1F: Front bodice area 1R: Back panel area 2L:Left lower limb opening 2R: Right lower limb opening 2T: Body opening 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: Encounter 4RF: Loopback Line 5: Inner cover sheet 5L: Linear adhesive part 6: Back seat 6A: Folded section 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 15: Non-adhesive area 40, 41, 42: Adhesive part 43FL, 43FR, 43RL, 43RR: Fully adhesive area 45: Anal 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, At the widthwise end of the crotch region, a first linear adhesive portion for bonding the outer cover sheet and the inner cover sheet is provided, comprising a plurality of first linear adhesive portions intermittently arranged in the longitudinal direction, A full-surface adhesive portion is located on the front body region side and the back body region side of the first linear adhesive portion at the widthwise end side of the exterior sheet, and the outer cover sheet and the inner cover sheet are bonded together, and the full-surface adhesive portions are located at both ends in the widthwise direction, In the front body region and the back body region, a second linear adhesive portion for bonding the outer cover sheet and the inner cover sheet is provided intermittently in the longitudinal direction and is positioned between the full-surface adhesive portions on both sides in the width direction, An absorbent article equipped with [a specific feature].

2. The aforementioned full-surface adhesive portion is located at the end in the width direction, The absorbent article according to claim 1.

3. It has a lower limb opening 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 full-surface adhesive portion is formed along the lower limb opening edge and extends to the lower limb opening edge. The absorbent article according to claim 1 or 2.

4. 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 3.

5. The outer sheet has a waist opening through which the wearer's waist is inserted, and a pair of lower limb openings through which the wearer's lower limbs are inserted. The absorbent article is provided on the front body area side along one of the lower limb openings, crosses the crotch area side in the width direction, extends along the other lower limb opening, and is provided on the outer sheet in an extended state as an expandable member, In the overlapping region of the crotch area where the stretchable member and the absorbent overlap, there is a non-adhesive region where the absorbent and the outer sheet are not adhered, Equipped with, When viewed in the thickness direction, the first linear adhesive portion is located on the crotch side of the non-adhesive region. The absorbent article according to claim 1 or 2.

6. The non-adhesive area is located in the adjacent front part of the crotch. The absorbent article according to claim 5.

Images