Underpants-type absorbent article

Abstract

To provide an underpants-type absorbent article in which the wearer can easily recognize that a finger is put in a space.SOLUTION: The underpants-type absorbent article includes a one-side waist portion and an other-side waist portion including a pair of waist sheet portions, and an absorber, wherein the one-side waist portion includes a sheet portion on a skin side or a non-skin side of the pair of waist sheet portions, the sheet portion includes a fixed portion fixed to the waist sheet portion by fixing means and a non-fixed portion not fixed to the waist sheet portion, and a space between the waist sheet portion and the non-fixed portion is configured such that fingers can be inserted from below, the fixing means is provided adjacent to an end on one side in a left-right direction of the non-fixed portion at a first position in the up-down direction, the fixing means is provided adjacent to an end on one side in the left-right direction of the non-fixed portion at a second position in the up-down direction, and the end on one side in the left-right direction of the non-fixed portion at the first position and the end on one side in the left-right direction of the non-fixed portion at the second position are provided at different positions in the left-right direction in an extended state.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a pant-type absorbent article. [Background technology]

[0002] Among conventional absorbent articles for absorbing excrement such as urine and feces, there are known pants-type absorbent articles that can be worn like underwear. For example, Patent Document 1 discloses a pants-type diaper that has a folded-back portion on the non-skin side of the ventral or dorsal portion, making it easier to grasp and pull up the folded-back portion, thereby improving ease of operation when worn. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-123548 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the pants-type diaper of Patent Document 1, when an attempt is made to insert one's hand between the folded-back portion and the outer body to grab the folded-back portion and pull up the pants-type diaper, the portion formed by the folded-back portion into which the hand can be inserted is formed in a rectangular shape surrounded by both inner horizontal ends of the side seal portion which are aligned vertically, the upper end of the ventral side portion or the dorsal side portion which is aligned horizontally, and the lower end of the folded-back portion which is aligned horizontally. Therefore, even if a wearer inserts his / her fingers inside the portion formed by the folded-back portion when wearing the diaper, it is difficult for the wearer to recognize that he / she has inserted his / her fingers inside, and it is difficult to grasp the ventral side portion or the dorsal side portion with his / her fingers inserted.

[0005] The present invention has been made in consideration of the above-mentioned problems, and its purpose is to provide a pants-type absorbent article that allows the wearer to easily recognize when they have inserted their finger into the space. [Means for solving the problem]

[0006] The main invention for achieving the above object is a pants-type absorbent article having vertical, horizontal, and front-rear directions which intersect with each other, comprising one side waist portion, another side waist portion, and a liquid-absorbent absorbent body, the one side waist portion comprising a pair of waist sheet portions joined to each other, the one side waist portion and the other side waist portion having end joining portions at both end portions in the left-right direction, the one side waist portion having a sheet portion on the skin side or non-skin side of the pair of waist sheet portions, the sheet portion having a fixed portion fixed to the waist sheet portion by a fixing means and a non-fixed portion not fixed to the waist sheet portion, The space between the non-fixed portions is configured so that a finger can be inserted from below, the fixing means is provided adjacent to one end of the non-fixed portion in the left-right direction at a first position in the vertical direction, and the fixing means is provided adjacent to one end of the non-fixed portion in the left-right direction at a second position in the vertical direction, and when the one side waist circumference portion and the other side waist circumference portion are stretched, the one side end of the non-fixed portion in the left-right direction at the first position and the one side end of the non-fixed portion in the left-right direction at the second position are provided at different positions in the left-right direction. Other features of the present invention will become apparent from the following detailed description of the present invention and the accompanying drawings. Effect of the Invention

[0007] According to the present invention, it is possible to provide a pants-type absorbent article that allows the wearer to easily recognize that he or she has inserted a finger into a space. [Brief description of the drawings]

[0008] [Figure 1] Fig. 1A is a schematic front view of the diaper 1 as viewed from the ventral side. Fig. 1B is a schematic front view of the diaper 1 as viewed from the dorsal side. [Diagram 2] FIG. 2 is a schematic plan view of the diaper 1 in an open and extended state, as viewed from the non-skin side. [Diagram 3]FIG. 3 is a schematic cross-sectional view taken along the line AA in FIG. 2. [Figure 4] FIG. 3 is a schematic cross-sectional view taken along the line BB in FIG. 2. [Diagram 5] FIG. 3 is an enlarged schematic view of a portion X in FIG. [Figure 6] FIG. 3 is an enlarged schematic view of a portion Y in FIG. [Figure 7] 3 is an enlarged view of the back waist portion 30 in FIG. 2. FIG. [Figure 8] FIG. 3 is an enlarged schematic view of a portion Z in FIG. [Figure 9] Fig. 9A is a schematic front view of a diaper 1 according to a modification of this embodiment, as viewed from the ventral side. Fig. 9B is a schematic front view of a diaper 1 according to a modification of this embodiment, as viewed from the dorsal side. [Figure 10] Fig. 10A is a schematic front view of the diaper 1 according to a modification of this embodiment as viewed from the ventral side, and Fig. 10B is a schematic front view of the diaper 1 according to a modification of this embodiment as viewed from the dorsal side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] At least the following points will become apparent from the description of this specification and the accompanying drawings. (Aspect 1) A pants-type absorbent article having vertical, horizontal, and front-rear directions intersecting each other, comprising one side waist portion, another side waist portion, and a liquid-absorbent absorbent body, the one side waist portion comprising a pair of waist sheet portions joined to each other, the one side waist portion and the other side waist portion having end joining portions at both end portions in the horizontal direction, the one side waist portion having a sheet portion on the skin side or the non-skin side of the pair of waist sheet portions, the sheet portion having a fixed portion fixed to the waist sheet portion by a fixing means and a non-fixed portion not fixed to the waist sheet portion, and a space between the waist sheet portions and the non-fixed portion the gap is configured so that a finger can be inserted from below, the fixing means is provided adjacent to one end of the non-fixed portion in the left-right direction at a first position in the up-down direction, and the fixing means is provided adjacent to one end of the non-fixed portion in the left-right direction at a second position in the up-down direction, and when the one side waist circumference portion and the other side waist circumference portion are stretched, the one side end of the non-fixed portion in the left-right direction at the first position and the one side end of the non-fixed portion in the left-right direction at the second position are provided at different positions in the left-right direction.

[0010] According to the pants-type absorbent article of aspect 1, when a wearer puts on the pants-type absorbent article by inserting his / her fingers into the space and gripping the waist portion, the wearer is more likely to touch the inner wall in the left-right direction inside the space when inserting his / her fingers into the space than when one left-right end of the non-fixed part in the first position and one left-right end of the non-fixed part in the second position are located at the same position in the left-right direction. This makes it easier for the wearer to recognize that he / she has inserted his / her fingers into the space, makes it easier to grip the waist portion with his / her fingers inserted, and makes it easier to pull up the pants-type absorbent article.

[0011] (Aspect 2) The pants-type absorbent article of aspect 1 is characterized in that at a first position in the vertical direction, the fixing means is provided adjacent to the other end of the non-fixed part in the left-right direction, and at a second position in the vertical direction, the fixing means is provided adjacent to the other end of the non-fixed part in the left-right direction, and when the one-side waistline portion and the other-side waistline portion are stretched, the other end of the non-fixed part in the left-right direction at the first position and the other end of the non-fixed part in the left-right direction at the second position are provided at different positions in the left-right direction.

[0012] According to the pants-type absorbent article of aspect 2, when a wearer puts on the pants-type absorbent article by inserting his / her fingers into the space and gripping the waist portion, the wearer is more likely to touch the inner wall in the left-right direction inside the space when inserting his / her fingers into the space than when not only one side in the left-right direction of the non-fixed part but also the other left-right end of the non-fixed part at the first position and the other left-right end of the non-fixed part at the second position are located at the same position in the left-right direction. This makes it easier for the wearer to recognize that he / she has inserted his / her fingers into the space, makes it easier to grip the waist portion with his / her fingers inserted, and makes it easier to pull up the pants-type absorbent article.

[0013] (Aspect 3) The pants-type absorbent article of aspect 1 or 2 is characterized in that, at a first position in the vertical direction, the fixing means is provided adjacent to the other end of the non-fixed part in the left-right direction, and at a second position in the vertical direction, the fixing means is provided adjacent to the other end of the non-fixed part in the left-right direction, and when the one side waistline portion and the other side waistline portion are stretched, the distance between the one side end in the left-right direction and the other end in the left-right direction of the non-fixed part at the first position is different from the distance between the one side end in the left-right direction and the other end in the left-right direction of the non-fixed part at the second position.

[0014] According to the pants-type absorbent article of aspect 3, when a finger is inserted into the space, it becomes easier to touch the inner walls of the sheet portion on the left and right sides inside the space, making it easier for the wearer to recognize that he or she has inserted his or her finger into the space, and it becomes easier to grasp the waist portion with the finger inserted, making it easier to pull up the pants-type absorbent article.

[0015] (Aspect 4) At a first position in the up-down direction, the fixing means is provided adjacent to the other end of the non-fixed portion in the left-right direction, the one-side waistline portion has another space different from the space, the other space being between the waistline sheet portion and the non-fixed portion and configured to allow a finger to be inserted from below, at a third position in the up-down direction, the fixing means is provided adjacent to one end of the non-fixed portion in the left-right direction of the other space, and the fixing means is provided adjacent to the other end of the non-fixed portion in the left-right direction, and in a state in which the one-side waistline portion and the other-side waistline portion are stretched, A pants-type absorbent article according to any one of aspects 1 to 3, characterized in that the distance between the end of the non-fixed part in the left-right direction on one side and the end of the non-fixed part on the other side in the left-right direction is shortest at a first position in the vertical direction, and in the other space, the distance between the end of the non-fixed part in the left-right direction on one side and the end of the non-fixed part on the other side in the left-right direction is shortest at a third position in the vertical direction, and the distance between the end of the non-fixed part in the left-right direction on one side and the end of the non-fixed part on the other side in the left-right direction at the first position in the vertical direction is different from the distance between the end of the non-fixed part in the left-right direction on one side and the end of the non-fixed part on the other side in the left-right direction at the third position in the vertical direction.

[0016] According to the pants-type absorbent article of aspect 4, the wearer can easily recognize that he or she has inserted his or her finger into at least one of the space or the other space, and can easily grasp the waist area with his or her finger inserted, making it easier to pull up the pants-type absorbent article.

[0017] (Aspect 5) The pants-type absorbent article of any of aspects 1 to 4, characterized in that, at a first position in the vertical direction, the fastening means is provided adjacent to an end on the other side in the left-right direction of the non-fixed portion, the one-side waistline portion has another space different from the space, the other space being between the waistline sheet portion and the non-fixed portion and configured to allow a finger to be inserted from below, at the first position in the vertical direction, the fastening means is provided adjacent to an end on one side in the left-right direction of the non-fixed portion of the other space, and the fastening means is provided adjacent to an end on the other side in the left-right direction of the non-fixed portion, and when the one-side waistline portion and the other-side waistline portion are stretched, at the first position in the vertical direction, the distance between the end on one side in the left-right direction of the non-fixed portion of the space and the end on the other side in the left-right direction is different from the distance between the end on one side in the left-right direction of the non-fixed portion of the other space and the end on the other side in the left-right direction.

[0018] According to the pants-type absorbent article of aspect 5, the wearer can easily recognize that he or she has inserted his or her finger into at least one of the space or the other space, and can easily grasp the waist portion with his or her finger inserted, making it easier to pull up the pants-type absorbent article.

[0019] (Aspect 6) The space of the one-side waistline portion is a one-side space, the fixed portion is a one-side fixed portion, the space of the one-side waistline portion is a one-side space, the fixed portion is a one-side fixed portion, and the non-fixed portion is a one-side non-fixed portion, the fixing means is provided adjacent to the other end of the non-fixed portion in the left-right direction at a first position in the up-down direction, the other-side waistline portion has a pair of other-side waistline sheet portions joined to each other, the other-side waistline portion has a other-side sheet portion on the skin side or non-skin side of the pair of other-side waistline sheet portions, the other-side sheet portion has a other-side fixed portion fixed to the other-side waistline sheet portion by a fixing means and a other-side non-fixed portion not fixed to the other-side waistline sheet portion, the other-side space between the other-side waistline sheet portion and the other-side non-fixed portion is configured so that a finger can be inserted from below, and at a fourth position in the up-down direction of the other-side waistline portion, The pants-type absorbent article of any of aspects 1 to 5, characterized in that the fixing means is provided adjacent to an end on one side in the left-right direction of the other-side non-fixed portion, and the fixing means is provided adjacent to an end on the other side in the left-right direction of the other-side non-fixed portion, and when the one-side waistline portion and the other-side waistline portion are stretched, in the one-side space, the distance between the end on one side in the left-right direction of the one-side non-fixed portion and the end on the other side in the left-right direction is shortest at the first position, and in the other-side space, the distance between the end on one side in the left-right direction of the other-side non-fixed portion and the end on the other side in the left-right direction is shortest at a fourth position in the up-down direction, and the distance between the end on one side in the left-right direction of the one-side non-fixed portion and the end on the other side in the left-right direction at the first position is different from the distance between the end on one side in the left-right direction of the other-side non-fixed portion and the end on the other side in the left-right direction at the fourth position.

[0020] According to the pants-type absorbent article of aspect 6, the wearer can easily recognize that he or she has inserted his or her finger into at least one of the one side space of the one side waist portion or the other side space of the other side waist portion, and can easily grasp the waist portion with the finger inserted, making it easier to pull up the pants-type absorbent article.

[0021] (Aspect 7) When a boundary between an end of the non-fixed part on one side in the left-right direction and the fixed part in the left-right direction is defined as a one-side boundary point, and a boundary between an end of the non-fixed part on the other side in the left-right direction and the fixed part in the left-right direction is defined as an other-side boundary point, in a state in which the one-side waistline portion and the other-side waistline portion are stretched, the one-side boundary point at the first position is located on the other side in the left-right direction than the one-side boundary point at any other position in the up-down direction, and the one-side boundary point at the second position is located on one side in the left-right direction than the one-side boundary point at any other position in the up-down direction, and a peel strength per unit area for peeling off the fixation between the waistline sheet portion and the sheet portion in the upper adjacent area is greater than the peel strength per unit area for peeling off the fixation between the waistline sheet portion and the sheet portion in the lower adjacent area.

[0022] According to the pants-type absorbent article of aspect 7, even when a wearer presses his / her fingers against the upper end of the interior of the space to pull up the pants-type absorbent article in order to put it on, the risk of the fixation between the waist sheet portion and the sheet portion in the upper adjacent region coming apart is reduced compared to when the peel strength per unit area of ​​the upper adjacent region is smaller than the peel strength per unit area of ​​the lower adjacent region, making it easier to pull up the pants-type absorbent article with less concern about damage to the pants-type absorbent article.

[0023] (Aspect 8) The pants-type absorbent article of any of aspects 1 to 6, characterized in that when a boundary between one end of the non-fixed part in the left-right direction and the fixed part is defined as a one-side boundary point, and a boundary between the other end of the non-fixed part in the left-right direction and the fixed part is defined as a other-side boundary point, when the one-side waistline part and the other-side waistline part are stretched, the one-side boundary point at the first position is located on the other side of the one-side boundary point at any other position in the vertical direction, and the one-side boundary point at the second position is located on one side of the one-side boundary point at any other position in the vertical direction, an adjacent region is provided in a region between the one-side boundary point at the first position and the one-side boundary point at the second position in the left-right direction, and a peel strength per unit area for peeling off the fixation of the waistline sheet part and the sheet part in the upper adjacent region is smaller than a peel strength per unit area for peeling off the fixation of the waistline sheet part and the sheet part in the lower adjacent region.

[0024] According to the pants-type absorbent article of aspect 8, even if a wearer inserts his / her finger into the space to pull up the pants-type absorbent article in order to put it on, the risk of the fixation between the waist sheet portion and the sheet portion in the lower adjacent region coming apart is reduced compared to when the peel strength per unit area of ​​the upper adjacent region is greater than the peel strength per unit area of ​​the lower adjacent region, making it easier to pull up the pants-type absorbent article with less concern about damage to the pants-type absorbent article.

[0025] (Aspect 9) The one-side waistline portion is a back-side waistline portion, the waistline sheet portion is a back-side waistline sheet portion, the sheet portion is a back-side sheet portion, the space is a back-side space, the fastening portion is a back-side fastening portion, the non-fastening portion is a back-side non-fastening portion, and the other-side waistline portion is a ventral-side waistline portion, the ventral-side waistline portion comprises a pair of ventral-side waistline sheet portions joined to each other, the ventral-side waistline portion has a ventral-side sheet portion on the skin side or non-skin side of the pair of ventral-side waistline sheet portions, the ventral-side sheet portion has a ventral-side fastening portion fixed to the ventral-side waistline sheet portion by a fastening means, and a fastening portion fixed to the ventral-side waistline sheet portion by a fastening means. and a ventral-side non-fixed part that is not fixed to the ventral waistline sheet part, and a ventral-side space between the ventral-side non-fixed part and the ventral-side space is configured so that a finger can be inserted from below, and the fixing means is provided adjacent to one end of the ventral-side non-fixed part in the left-right direction at a fifth position in the up-down direction of the ventral-side waistline part, and the fixing means is provided adjacent to one end of the ventral-side non-fixed part in the left-right direction at a sixth position in the up-down direction of the ventral-side waistline part, and a boundary between one end of the left-right direction of the back-side non-fixed part and the back-side fixed part in the left-right direction is provided between the first end of the back-side non-fixed part and the back-side fixed part. a boundary between an end of the back-side non-fixed portion on one side in the left-right direction and the back-side fixed portion as a back-side other-side boundary point, a boundary between an end of the back-side non-fixed portion on one side in the left-right direction and the back-side fixed portion as a back-side one-side boundary point, a boundary between an end of the back-side non-fixed portion on one side in the left-right direction and the back-side fixed portion as a back-side one-side boundary point, and a boundary between an end of the back-side non-fixed portion on the other side in the left-right direction and the back-side fixed portion as a back-side other-side boundary point, the dorsal one-side boundary point at the second position is located on one side of the dorsal one-side boundary point at any other position in the vertical direction of the dorsal waistline part, and has a dorsal adjacent region in the left-right direction in a region between the dorsal one-side boundary point at the first position and the dorsal other-side boundary point at the second position, the ventral one-side boundary point at the fifth position is located on the other side of the ventral one-side boundary point at any other position in the vertical direction of the ventral waistline part, and the ventral one-side boundary point at the sixth position isThe pants-type absorbent article according to any one of aspects 1 to 8, characterized in that the fifth position is located on one side of the abdominal one-side boundary point at any other position in the up-down direction of the abdominal waist part, the fifth position has an end on one side in the left-right direction of the abdominal non-fixed part at the fifth position and an end on one side in the left-right direction of the abdominal non-fixed part at the sixth position that are provided at different positions in the left-right direction, the article has a abdominal adjacent region in a region between the abdominal one-side boundary point at the fifth position and the abdominal other-side boundary point at the sixth position in the left-right direction, and the peel strength per unit area for peeling the fixation between the abdominal waist part and the abdominal sheet part in the abdominal adjacent region and in a region from the upper end of the abdominal space to the lower end of the abdominal sheet part is greater than the peel strength per unit area for peeling the fixation between the back waist part and the back sheet part in the dorsal adjacent region and in a region from the upper end of the dorsal space to the lower end of the dorsal sheet part.

[0026] According to the pants-type absorbent article of aspect 9, when pulling up the pant-type absorbent article, there is less concern that the pant-type absorbent article will get caught on the wearer's buttocks or the like on the back side, causing excessive force to be applied to the ventral side of the pant-type absorbent article and damaging the ventral waist portion, compared to when the peel strength per unit area of ​​the ventral adjacent region from the upper end of the ventral space to the lower end of the ventral sheet portion is smaller than the peel strength per unit area of ​​the dorsal adjacent region between the upper end of the dorsal space and the lower end of the dorsal sheet portion, making it easier to pull up the pant-type absorbent article.

[0027] (Aspect 10) The one-side waistline portion is a back-side waistline portion, the waistline sheet portion is a back-side waistline sheet portion, the sheet portion is a back-side sheet portion, the space is a back-side space, the fastening portion is a back-side fastening portion, the non-fastening portion is a back-side non-fastening portion, and the other-side waistline portion is a ventral-side waistline portion, the ventral-side waistline portion comprises a pair of ventral-side waistline sheet portions joined to each other, the ventral-side waistline portion has a ventral-side sheet portion on the skin side or non-skin side of the pair of ventral-side waistline sheet portions, the ventral-side sheet portion has a ventral-side fastening portion fixed to the ventral-side waistline sheet portion by a fastening means, and a fastening portion fixed to the ventral-side waistline sheet portion by a fastening means. and a ventral-side non-fixed part that is not fixed to the ventral waistline sheet part, and a ventral-side space between the ventral-side non-fixed part and the ventral-side space is configured so that a finger can be inserted from below, and the fixing means is provided adjacent to one end of the ventral-side non-fixed part in the left-right direction at a fifth position in the up-down direction of the ventral-side waistline part, and the fixing means is provided adjacent to one end of the ventral-side non-fixed part in the left-right direction at a sixth position in the up-down direction of the ventral-side waistline part, and a boundary between one end of the left-right direction of the back-side non-fixed part and the back-side fixed part in the left-right direction is provided between the first end of the back-side non-fixed part and the back-side fixed part. a boundary between an end of the back-side non-fixed portion on one side in the left-right direction and the back-side fixed portion as a back-side other-side boundary point, a boundary between an end of the back-side non-fixed portion on one side in the left-right direction and the back-side fixed portion as a back-side one-side boundary point, a boundary between an end of the back-side non-fixed portion on one side in the left-right direction and the back-side fixed portion as a back-side one-side boundary point, and a boundary between an end of the back-side non-fixed portion on the other side in the left-right direction and the back-side fixed portion as a back-side other-side boundary point, the dorsal one-side boundary point at the second position is located on one side of the dorsal one-side boundary point at any other position in the vertical direction of the dorsal waistline part, and has a dorsal adjacent region in the left-right direction in a region between the dorsal one-side boundary point at the first position and the dorsal other-side boundary point at the second position, the ventral one-side boundary point at the fifth position is located on the other side of the ventral one-side boundary point at any other position in the vertical direction of the ventral waistline part, and the ventral one-side boundary point at the sixth position isThe absorbent article according to any one of aspects 1 to 8, characterized in that the fifth position is located to one side of the abdominal one-side boundary point at any other position in the up-down direction of the abdominal waistline part, the fifth position has an end on one side in the left-right direction of the abdominal non-fixed part at the fifth position and an end on one side in the left-right direction of the abdominal non-fixed part at the sixth position that are provided at different positions in the left-right direction, the absorbent article has a abdominal adjacent region in a region between the abdominal one-side boundary point at the fifth position and the abdominal other-side boundary point at the sixth position in the left-right direction, and the peel strength per unit area for peeling the fastening between the back waistline sheet part and the back sheet part in the back adjacent region and between the upper end of the back space and the lower end of the back sheet part is greater than the peel strength per unit area for peeling the fastening between the abdominal waistline sheet part and the abdominal sheet part in the abdominal adjacent region and between the upper end of the abdominal space and the lower end of the back sheet part.

[0028] According to the pants-type absorbent article of aspect 10, when pulling up the pants-type absorbent article, there is less concern that the pants-type absorbent article will get caught on the wearer's male genitalia, etc. on the abdominal side, causing excessive force to be applied to the abdominal side of the pants-type absorbent article and damaging the abdominal waist portion, compared to when the peel strength per unit area of ​​the ventral adjacent region between the upper end of the dorsal space and the lower end of the dorsal sheet portion is greater than the peel strength per unit area of ​​the dorsal adjacent region between the upper end of the dorsal space and the lower end of the ventral sheet portion, making it easier to pull up the pants-type absorbent article.

[0029] (Aspect 11) 11. The pants-type absorbent article according to any one of aspects 1 to 10, wherein, in a plan view of the one waistline, the sheet portion has a portion having a different color or pattern from the waistline sheet portion.

[0030] According to the pants-type absorbent article of aspect 11, it becomes easy to visually see that the pants-type absorbent article has a space into which fingers can be inserted, making it easier for the wearer to insert their fingers into the space and making it easier to wear the pants-type absorbent article.

[0031] (Aspect 12) 12. The pants-type absorbent article according to any one of aspects 1 to 11, wherein a portion of the one waistline overlapping with the space in a plan view has a different light transmittance from the surroundings of the space.

[0032] According to the pants-type absorbent article of aspect 12, it becomes easy to visually confirm that the pants-type absorbent article has a space into which fingers can be inserted, making it easier for the wearer to insert their fingers into the space and making it easier to wear the pants-type absorbent article.

[0033] (Aspect 13) 13. The pants-type absorbent article according to any one of aspects 1 to 12, wherein the one-side waist portion is provided with an indication for indicating the position of the space.

[0034] According to the pants-type absorbent article of aspect 13, the wearer can easily recognize the location of the space and can easily insert his / her fingers into the space, making it easier to put on the absorbent article.

[0035] (Aspect 14) The pants-type absorbent article of any one of aspects 1 to 13 is characterized in that the one side waist portion is a back waist portion, and the back waist portion is provided with an elastic member that stretches in the left-right direction below the sheet portion.

[0036] According to the pants-type absorbent article of aspect 14, by contracting the lower side of the sheet portion of the rear waist portion using an elastic member, the lower side of the space becomes easier to open, making it easier to insert fingers into the space even on the rear side, which is difficult to see directly when worn.

[0037] (Aspect 15) The pants-type absorbent article of any of aspects 1 to 14, wherein the one side waist portion is a back waist portion, the back waist portion has an upper stretchable member and a lower stretchable member that stretch in the left-right direction, the upper stretchable member is adjacent to the lower end of the sheet portion from above, and the lower stretchable member is adjacent to the lower end of the sheet portion from below, and a force that stretches the lower stretchable member by a unit length is greater than a force that stretches the upper stretchable member by a unit length.

[0038] According to the pants-type absorbent article of aspect 15, by contracting the lower side of the opening of the space in the rear waist portion using an elastic member, even when it is difficult for the wearer to directly see the rear waist portion while wearing the article, the lower side of the space becomes easier to open, making it easier to insert fingers into the space.

[0039] (Aspect 16) The absorbent article of any of aspects 1 to 15, wherein the one side waistline portion is a back waistline portion, the back waistline portion comprises an upper first elastic member, an upper second elastic member, a lower first elastic member, and a lower second elastic member that stretch in the left-right direction, the upper first elastic member is adjacent to the lower end of the sheet portion from above, the upper second elastic member is adjacent to the upper first elastic member from above, the lower first elastic member is adjacent to the lower end of the sheet portion from below, and the lower second elastic member is adjacent to the lower first elastic member from below, and the distance between the lower first elastic member and the lower second elastic member is shorter than the distance between the upper first elastic member and the upper second elastic member.

[0040] According to the pants-type absorbent article of aspect 16, the lower side of the space in the rear waist portion is easily opened, making it easy to insert fingers into the space.

[0041] (Aspect 17) A pants-type absorbent article according to any one of aspects 1 to 16, characterized in that the lower end of the sheet portion has a non-adhesive portion between the waist-circulating sheet portion and the lower end portion where the lower end portion and the waist-circulating sheet portion are not adhered, and the non-adhesive portion is continuous with the space.

[0042] According to the pants-type absorbent article of aspect 17, the space can be easily opened, and it is easy to insert fingers into the bag portion when wearing the absorbent article.

[0043] (Aspect 18) A pants-type absorbent article according to any one of aspects 1 to 17, characterized in that there is a non-adhesive portion between the sheet portion and the waist sheet portion where the sheet portion and the waist sheet portion are not adhered to each other, and the non-adhesive portion has a portion that continues from the end joint portion on one side in the left-right direction to the end joint portion on the other side in the left-right direction between the first position and the second position in the up-down direction.

[0044] According to the pants-type absorbent article of aspect 18, when a finger is inserted into the space, it is easy to touch the inner wall of the sheet portion on the left and right sides inside the space, making it easier for the wearer to recognize that he or she has inserted his or her finger into the space, and it is easier for the wearer to grasp the waist portion with his or her finger inserted, making it easier to pull up the pants-type absorbent article.

[0045] ===This embodiment=== A pants-type disposable diaper for adults (hereinafter, also referred to as "diaper 1") will be described as an example of a pants-type absorbent article according to a first embodiment of the present invention. However, the present invention is not limited to this, and the pants-type absorbent article according to the present invention can also be applied to pants-type disposable diapers for infants, shorts-type sanitary napkins, etc. The effects of the features of this embodiment are useful not only for the wearer who wears the diaper 1, but also for guardians, caregivers, etc. who have the wearer put the diaper 1 on the wearer.

[0046] <<Basic structure of pants-type disposable diaper 1>> Fig. 1A is a schematic front view of the diaper 1 as viewed from the ventral side, and Fig. 1B is a schematic front view of the diaper 1 as viewed from the dorsal side. Fig. 2 is a schematic plan view of the diaper 1 in an unfolded and stretched state as viewed from the non-skin side. Fig. 3 is a schematic cross-sectional view taken along line AA in Fig. 2. Fig. 4 is a schematic cross-sectional view taken along line BB in Fig. 2. Center line CC in Fig. 2 indicates the center of the diaper 1 in the left-right direction, and center line CL indicates the center of the diaper 1 in the longitudinal direction in the unfolded state.

[0047] The "unfolded state" of the diaper 1 refers to a state in which the diaper 1 in the pants-type state shown in Fig. 1 has both the left and right ends unjoined (at end joints 40), a pair of waistbands 20, 30 (described below) separated, and the diaper 1 is opened in the vertical direction (longitudinal direction) to unfold the diaper 1 on a flat surface. The "stretched state" of the diaper 1 refers to a state in which the diaper 1 is stretched without wrinkles, specifically, a state in which the dimensions of each of the components constituting the diaper 1 (e.g., waistbands 20, 30, etc.) are stretched to the extent that they match or are close to the dimensions of the individual components.

[0048] In the pants-type state shown in FIG. 1, the diaper 1 has a vertical direction, a horizontal direction, and a front-rear direction that intersect with each other, and is formed with a waist opening BH and a pair of leg openings LH. In the unfolded state shown in FIG. 2, the diaper 1 has a longitudinal direction, a horizontal direction, and a thickness direction that intersect with each other. The longitudinal direction in the unfolded state is the direction along the vertical direction in the pants-type state. The thickness direction is the direction in which the members constituting the diaper 1 are layered (see FIG. 3 and FIG. 4). In the vertical direction, the waist opening BH side is the upper side, and the crotch side is the lower side. In the front-rear direction, the side that faces the wearer's abdomen is the front side, and the side that faces the wearer's back is the rear side. In the thickness direction, the side that comes into contact with the wearer's body (skin) is the skin side, and the side opposite the skin side is the non-skin side.

[0049] The diaper 1 has a pair of waist-circulating sections 20, 30 that are placed around the waist of a wearer, and an absorbent body 10. Of the pair of waist-circulating sections 20, 30, the one that is placed against the wearer's abdominal side is referred to as the abdominal waist-circulating section 20, and the other that is placed against the wearer's dorsal side is referred to as the dorsal waist-circulating section 30.

[0050] In the diaper 1 in the developed state shown in FIG. 2, one end of the absorbent body 10 in the longitudinal direction is disposed in the center of the ventral waist portion 20 in the left-right direction, and the non-skin side of the end of the one side is joined to the ventral waist portion 20 by an adhesive such as a hot melt adhesive. Similarly, the other end of the absorbent body 10 in the longitudinal direction is disposed in the center of the back waist portion 30 in the left-right direction, and the non-skin side of the end of the other side is joined to the back waist portion 30 by an adhesive such as a hot melt adhesive. In the developed state of the diaper 1, the absorbent body 10 is folded in half at the center position CL, and both left-right sides of the ventral waist portion 20 and the back waist portion 30 are joined at a pair of end joints 40, thereby forming the pants-type diaper 1 shown in FIG. 1. Examples of the joining method at the end joints 40 include welding and joining with an adhesive.

[0051] As shown in Fig. 3, the absorbent main body 10 comprises an absorbent body 11 that absorbs excreted liquid, a liquid-permeable top sheet 12 arranged on the skin side of the absorbent body 11 in the thickness direction, a liquid-impermeable back sheet 13 arranged on the non-skin side of the absorbent body 11 in the thickness direction, and a sheet member 14. Both left and right side portions of the top sheet 12 are folded back to the non-skin side so as to roll up the absorbent body 11. The sheet member 14 has a portion arranged on the non-skin side of the back sheet 13 and a portion forming a leakage preventing wall portion 50 on the skin side of the top sheet 12.

[0052] The absorbent body 11 has an absorbent core 11a that absorbs and retains excreted liquid such as urine, and a liquid-permeable core wrap sheet 11b that covers the absorbent core 11a. An example of the absorbent core 11a is liquid-absorbent fiber such as pulp containing superabsorbent polymer (SAP) molded into a predetermined shape. On the other hand, an example of the core wrap sheet 11b is tissue paper. Note that the absorbent body 11 may not be provided with a core wrap sheet. Note that in the absorbent body 11, the absorbent core 11a may have linear compressed parts, slits penetrating in the thickness direction, high basis weight regions in which the basis weight of the liquid-absorbent fiber is partially increased, etc.

[0053] The top sheet 12 is a sheet-like member that covers the absorbent body 11 from the skin side, and is formed, for example, from a liquid-permeable nonwoven fabric having a planar size larger than that of the absorbent body 11.

[0054] The back sheet 13 is a sheet-like member that covers the non-skin side of the absorbent body 11, and examples of the back sheet include a liquid-impermeable leak-proof sheet made of polyethylene, polypropylene, etc. Examples of the sheet member 14 include nonwoven fabrics.

[0055] The absorbent body 10 has a pair of leakage prevention walls 50 along the longitudinal direction on both left and right sides. When the diaper 1 is worn, the leakage prevention walls 50 stand up from both left and right sides of the absorbent body 11 toward the wearer's skin, thereby preventing excrement from leaking out of the absorbent body 10. In this embodiment, the sheet member 14 constituting the exterior of the absorbent body 10 has a planar size in the left and right direction larger than the top sheet 12 and the absorbent core 11a, and both left and right sides of the sheet member 14 are folded toward the skin in the thickness direction at both ends in the left and right direction of the absorbent body 10, with the fulcrum 50B as the folding starting point. Then, the sheet member 14 is folded back toward the inside in the left and right direction at the fulcrum 50E located closer to the skin than the top sheet 12, and joined to the left and right ends of the top sheet 12 along the longitudinal direction at the joining portion 50A, thereby forming the leakage prevention walls 50.

[0056] In the leakproof wall portion 50, a longitudinally contractible elastic member is fixed between the two laminated sheet members 14, 14 in a state of being stretched in the longitudinal direction of the absorbent main body 10. In this embodiment, a plurality of leakproof wall elastic members 51 such as rubber threads are arranged side by side in the left-right direction as the elastic members. When the diaper 1 is worn, the leakproof wall portion 50 contracts along the longitudinal direction of the absorbent main body 10 and stands up against the wearer's skin due to the stretchability exhibited by the leakproof wall elastic members 51, and fits the wearer's crotch area.

[0057] The ventral waist portion 20 and the back waist portion 30 each have an inner layer sheet 21, 31, an outer layer sheet 22, 32 arranged on the non-skin side of the inner layer sheet 21, 31, and a plurality of waist elastic members 23, 33 that can stretch in the left-right direction. The inner layer sheet 21 and the outer layer sheet 22 are joined to each other via the waist elastic member 23 to which an adhesive is applied, and the inner layer sheet 31 and the outer layer sheet 32 ​​are joined to each other via the waist elastic member 33 to which an adhesive is applied. The joining between the inner layer sheet 21 and the outer layer sheet 22 and the joining between the inner layer sheet 31 and the outer layer sheet 32 ​​are not limited to an adhesive, and may be a joining means such as welding. As shown in FIG. 2, in the diaper 1, the area between the ventral waist portion 20 and the back waist portion 30 is defined as a crotch portion MA. The crotch portion MA corresponds to the crotch of the wearer when the diaper is worn. The ventral waist portion 20 includes ventral spaces Pa and Pb, and the rear waist portion 30 includes rear spaces Pc and Pd. The spaces Pa, Pb, Pc, and Pd will be described later.

[0058] The inner layer sheets 21, 31 and the outer layer sheets 22, 32 are disposed closer to the skin than the absorbent body 10. As the inner layer sheets 21, 31 and the outer layer sheets 22, 32, SMS nonwoven fabric (spunbond / meltblown / spunbond nonwoven fabric), spunbond nonwoven fabric, air-through nonwoven fabric, plastic sheet, perforated plastic sheet, laminated sheet thereof, or the like can be used.

[0059] The waist elastic members 23, 33 are arranged side by side in the vertical direction in the pants-type state between the inner layer sheets 21, 31 and the outer layer sheets 22, 32, and are fixed in a stretched state in the horizontal direction. Therefore, the ventral waist portion 20 and the rear waist portion 30 fit the waist of the wearer. Examples of the waist elastic members 23, 33 include thread-like elastic members such as rubber and spandex. In addition, cover sheets 26, 36 may be provided to cover the upper end of the absorbent body 10 from the skin side.

[0060] In the unfolded and stretched state of FIG. 2, the ventral waist portion 20 is rectangular in plan view. The back waist portion 30 has an overlapping portion 30A that overlaps with the ventral waist portion 20 in the front-rear direction of the diaper 1 in the pants-type state, and an extending portion 30B that extends downward from the ventral waist portion 20. The overlapping portion 30A is rectangular in plan view, and the extending portion 30B is inverted trapezoidal in plan view. The extending portion 30B can cover the buttocks of the wearer. On the other hand, the ventral waist portion 20 is shorter in the vertical direction than the back waist portion 30, and does not extend to the crotch side. Therefore, the movement of the legs that are pulled up to the ventral side when walking, etc. is not hindered, making it easier to walk.

[0061] Further, the extension portion 30B of the back waist portion 30 is provided with an extension portion elastic member 35 along its lower end. The extension portion elastic member 35 is fixed in a stretched state between the inner layer sheet 31 and the outer layer sheet 32, similar to the waist elastic member 33. The extension portion elastic member 35 allows the extension portion 30B to fit the buttocks of the wearer, and prevents the extension portion 30B from turning up. However, this is not limited to the above, and for example, the back waist portion 30 may have the same rectangular shape in a plan view as the ventral waist portion 20, and may not include the extension portion elastic member 35.

[0062] <<About the space for inserting your fingers>> When wearing a pants-type absorbent article such as a disposable diaper, the wearer first passes both legs through the waist opening and the leg opening, and then grabs the waist part and pulls it up. In pants-type absorbent articles, in order to make it easier to grab the waist part, for example, a space with an opening at the bottom, that is, a so-called pocket, may be provided on the skin side or non-skin side of the waist part. Usually, if this pocket (space) has a rectangular shape surrounded by sides along the top-bottom direction and sides along the left-right direction, it is difficult for the wearer to recognize that he has put his hands in the pocket, and even if he puts his hands in the pocket, it is not necessarily easy to grab the waist part. In particular, since the back waist part is disposed on the back side of the wearer, it may not be directly visible to the wearer, and even if the absorbent article has a pocket, it is difficult for the wearer to recognize that he has put his fingers in the pocket, and it is not necessarily easy to grab the back waist part and pull it up.

[0063] In contrast, by having the rear waist portion 30 of the diaper 1 have the rear first space Pc, it becomes easier for the wearer to recognize that he or she has inserted his or her finger into the rear first space Pc, and it becomes easier to grasp the rear waist portion 30 with the finger inserted into the rear first space Pc, making it easier to pull up the diaper 1.

[0064] The following describes the features of the rear-side first space Pc in the rear-side waist portion 30 of the diaper 1. Fig. 5 is an enlarged schematic view of a portion X in Fig. 2. As shown in Fig. 5, the back-side waistline portion (one-side waistline portion) 30 of the diaper 1 includes an inner layer sheet 31 and an outer layer sheet 32 ​​(a pair of waistline sheet portions) joined together, and has a folded-back portion (sheet portion, one-side sheet portion) 34 on the non-skin side of the outer layer sheet 32. Hereinafter, the folded-back portion 34 is also referred to as the "back-side folded-back portion 34." The folded-back portion 34 has a back-side fixed portion (one-side fixed portion) T34 fixed to the outer layer sheet 32 ​​by fixing means S, and a back-side unfixed portion (one-side unfixed portion) U34 that is not fixed to the outer layer sheet 32. The back-side first space Pc, which is the space between the outer sheet 32 ​​and the back-side non-fixed portion U34 of the folded-back portion 34, is configured so that a finger can be inserted from below. With regard to the fixing means S, the fixing means S is provided at a first position P1 in the vertical direction adjacent to one end ex1 of the rear non-fixed portion U34 in the left-right direction, and the fixing means S is provided at a second position P2 in the vertical direction adjacent to one end ex2 of the rear non-fixed portion U34 in the left-right direction. When the dorsal waist portion 30 and the ventral waist portion 20 are stretched (see FIG. 2), the end ex1 on one side of the dorsal non-fixed portion U34 at the first position P1 and the end ex2 on one side of the dorsal non-fixed portion U34 at the second position P2 are located at different positions in the left-right direction.

[0065] The folded-back portion 34 is a portion where the inner sheet 31 is folded back to the non-skin side with the outer sheet 32 ​​in between. More specifically, as shown in Fig. 4, the folded-back portion 34 is a portion where the inner sheet 31 is folded back from the skin side to the non-skin side so as to cover the upper end of the outer sheet 32. The vertical length of the folded-back portion 34 can be set as desired.

[0066] In this embodiment, the inner sheet 31 is folded back to the non-skin side, the folded-back portion 34 is joined to the non-skin side of the outer sheet 32, and the first back space Pc is provided between the outer sheet 32 ​​and the folded-back portion 34, but this is not limited to the above. The folded-back portion 34 may be formed, for example, by folding back the outer sheet 32, or a sheet member different from the inner sheet 31 and the outer sheet 32 ​​may be fixed to the outer sheet 32.

[0067] In addition, the folded-back portion 34 in this embodiment is provided on the non-skin side of the outer sheet 32 ​​(the surface of the back waistline portion 30 closest to the skin), but is not limited to this. The folded-back portion 34 may be fixed to the inner sheet 31 and provided on the surface of the back waistline portion 30 closest to the skin, or a sheet member different from the inner sheet 31 and the outer sheet 32 ​​may be fixed to the inner sheet 31.

[0068] The fixing means S for fixing the folded-back member 34 and the outer sheet 32 ​​in this embodiment is an adhesive S such as a hot melt adhesive. As shown in Fig. 5, the fixing means S in this embodiment is applied with the adhesive S in a so-called spiral pattern, and specifically, the ring-shaped adhesive S overlaps with each other in the left-right direction, and multiple rows of ring-shaped adhesive S along the left-right direction are arranged in multiple rows in the up-down direction. The application pattern of the adhesive S is not limited to this. The adhesive S can be applied in any pattern, such as a stripe pattern or an Ω pattern. However, a pattern in which the adhesive S is applied to the entire area of ​​the folded-back portion 34 is excluded.

[0069] The folded-back portion 34 and the outer sheet 32 ​​are fixed together by the adhesive S. Therefore, when the back waist portion 30 (folded-back portion 34) is viewed in plan, the area overlapping with the adhesive S is the "back fixed portion T34" of the folded-back portion 34, and the area not overlapping with the adhesive S is the "back non-fixed portion U34" of the folded-back portion 34. In Fig. 5, for convenience, the back fixed portion T34 is shown by a solid line as the same portion as the adhesive S, and the back non-fixed portion U34 is shown by a diagonal line slanting downward to the left.

[0070] Regarding the back-side fixed portion T34, the fixing means S for fixing the folded-back portion 34 to the outer sheet 32 ​​is not limited to adhesive. The fixing means S may be, for example, any fixing means such as welding, or the end joint portion 40 of the diaper 1. When the fixing means S is the end joint portion 40, the back-side fixed portion T34 is a portion that overlaps, in a plan view, with the end joint portion 40 at which the ventral waist portion 20 and the back waist portion 30 are welded together. In this case, the other end of the first space Pc in the left-right direction coincides with the inner end of the end joint portion 40 on the other side of the left-right direction of the diaper 1.

[0071] The back side first space Pc is a space between the outer layer sheet 32 ​​and the folded-back portion 34, configured so that a finger can be inserted from below. In other words, it is a back side non-fixed portion U34 where the outer layer sheet 32 ​​and the folded-back portion 34 are not fixed, and the back side non-fixed portion U34 has a length in the vertical direction sufficient to allow a finger to be inserted from the lower end of the folded-back portion 34. The upper end tpc of the back side first space Pc is the lowermost position of the fixing means S adjacent to the back side non-fixed portion U34 in the vertical direction. The lower end of the back side first space Pc is the lower end 34e of the folded-back portion 34 in the vertical direction. From the viewpoint of ensuring a sufficient length for finger insertion, the length from the upper end tpc to the lower end 34e of the back first space Pc is preferably 5 mm or more, more preferably 10 mm or more, and even more preferably 15 mm or more in the stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched. Moreover, the length from the upper end tpc to the lower end 34e of the back first space Pc is preferably 70 mm or less, more preferably 60 mm or less, and even more preferably 50 mm or less in the stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched. From the viewpoint of ensuring a sufficient length for finger insertion, the length in the left-right direction of the longest part between the end ex on one side in the left-right direction and the end ey on the other side in the left-right direction of the back-side non-fixed part U34 adjacent to the fixing means S in the back-side first space Pc in the stretched state in which the back-side waistline part 30 and the ventral waistline part 20 are stretched is preferably 10 mm or more, more preferably 15 mm or more, and even more preferably 20 mm or more. And, it is preferably 50 mm or less, more preferably 40 mm or less, and even more preferably 30 mm or less. In this embodiment, the length in the left-right direction of the back-side first space Pc is a length that allows three to four fingers of an adult's hand to be inserted. In this embodiment, the back-side first space Pc refers to a space surrounded by a thick line and a dotted line.

[0072] In this embodiment, the rear first space Pc is located on the other side of the left-right center CC of the rear waist portion 30, and is located at a position spaced apart in the left-right direction from the end joint portion 40 on the other side of the left-right direction of the diaper 1.

[0073] The fixing means S adjacent to one end ex1 in the left-right direction of the back non-fixed part U34 at the first position P1 is the boundary point ex1 between the fixing means S and the back non-fixed part U34, and the fixing means S adjacent to one end ex2 in the left-right direction of the back non-fixed part U34 at the second position P2 is also the boundary point ex2 between the fixing means S and the back non-fixed part U34.

[0074] Regarding the ends ex1 and ex2, in a stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched, the end ex1 on one side in the left-right direction of the back non-fixed portion U34 at the first position P1 and the end ex2 on one side in the left-right direction of the back non-fixed portion U34 at the second position P2 are provided at different positions in the left-right direction. In this embodiment, as shown in Fig. 5, the end (boundary point) ex1 at the first position P1 is located on the other side of the end (boundary point) ex2 at the second position P2.

[0075] The way of gripping and pulling up the back waist portion 30 varies depending on the wearer. With the diaper 1 having such characteristics, the inside (inner wall) of the back first space Pc has an uneven portion compared to the case where the end ex1 on one side of the first position P1 and the end ex2 on the second position P2 are located at the same position in the left-right direction. Therefore, when the wearer puts his / her finger into the back first space Pc and tries to pull up the back waist portion 30 while gripping it when wearing the diaper 1, the wearer's finger is more likely to hit the inside (inner wall) of the back first space Pc compared to the case where the end ex1 on one side of the first position P1 and the end ex2 on the second position P2 are located at the same position in the left-right direction, so that the wearer can easily recognize that the finger is in the back first space Pc and that the finger can apply force to the back waist portion 30. Therefore, even if the way of gripping or pulling up the rear waist portion 30 differs depending on the wearer, the wearer's fingers can easily come into contact with the uneven portion on the inside (inner wall) of the rear first space Pc, making it easier for the wearer to grip or apply force to the rear waist portion 30 with their fingers inserted in the rear first space Pc. This makes it easier to pull up the diaper 1 upward, making it easier for the wearer to put on the diaper 1.

[0076] The first position P1 and the second position P2 in the vertical direction can be set arbitrarily in the back-side waistband portion 30. That is, it is sufficient that at least one end in the horizontal direction of the back-side non-fixed portion U34 at position P1, which is an arbitrary position in the vertical direction, and one end in the horizontal direction of the back-side non-fixed portion U34 at a vertical position different from the arbitrary position described above are provided at different positions.

[0077] Furthermore, at a first position P1 in the vertical direction, a fixing means S is provided adjacent to the other left-right end ey1 of the back non-fixed portion U34, and at a second position P2 in the vertical direction, a fixing means S is provided adjacent to the other left-right end ey2 of the back non-fixed portion U34, and it is preferable that in an extended state in which the back waist portion 30 and the ventral waist portion 20 are extended, the other left-right end ey1 of the back non-fixed portion U34 at the first position P1 and the other left-right end ey2 of the back non-fixed portion U34 at the second position P2 are provided at different positions in the left-right direction.

[0078] The fixing means S adjacent to the other end ey1 in the left-right direction of the back side non-fixed part U34 at the first position P1 is the boundary point ey1 between the fixing means S and the back side non-fixed part U34, and the fixing means S adjacent to the other end ey2 in the left-right direction of the back side non-fixed part U34 at the second position P2 is also the boundary point ey2 between the fixing means S and the back side non-fixed part U34. In this embodiment, as shown in Fig. 5, the end (boundary point) ey1 at the first position P1 is located on one side of the end (boundary point) ey2 at the second position P2.

[0079] As a result, the inside (inner wall) of the back-side first space Pc has uneven portions not only on one side in the left-right direction of the back-side first space Pc but also on the other side. Therefore, when a wearer inserts his / her fingers into the back-side first space Pc to grab the back-side waist portion 30 and tries to pull it up while wearing the diaper 1, the wearer's fingers are more likely to hit the inside (inner wall) of the back-side first space Pc than when the end ey1 on one side of the first position P1 and the end ey2 of the second position P2 are located at the same position in the left-right direction, so that the wearer can easily recognize that he / she has inserted his / her fingers into the back-side first space Pc and that the fingers can apply force to the back-side waist portion 30. The wearer's fingers can easily come into contact with the uneven portion on the inside (inner wall) of the rear first space Pc, making it easier for the wearer to grasp or apply force to the rear waist portion 30 with their fingers inserted into the rear first space Pc, which makes it easier to pull the diaper 1 upward and makes it easier for the wearer to put on the diaper 1.

[0080] In addition, in a stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched, it is preferable that the distance L1 between the end ex1 on one side in the left-right direction and the end ey1 on the other side in the left-right direction of the back non-fixed portion U34 at the first position P1 in the up-down direction is different from the distance L2 between the end ex2 on one side in the left-right direction and the end ey2 on the other side in the left-right direction of the back non-fixed portion U34 at the second position P2 in the up-down direction. In this embodiment, as shown in Fig. 5, the distance L1 between the end ex1 on one side and the end ey1 on the other side at the first position P1 is shorter than the distance L2 between the end ex2 on one side in the left-right direction and the end ey2 on the other side at the second position P2.

[0081] As a result, the inside (inner wall) of the rear first space Pc has an uneven portion, and when the wearer inserts his / her fingers into the rear first space Pc to grasp the rear waist portion 30 and tries to pull the diaper 1 upward, the wearer's fingers are more likely to come into contact with the inside (inner wall) of the rear first space Pc, making it easier for the wearer to recognize that his / her fingers are in the rear first space Pc and that the fingers can apply force to the rear waist portion 30. The wearer's fingers are more likely to come into contact with the uneven portion on the inside (inner wall) of the rear first space Pc, making it easier for the wearer to grasp the rear waist portion 30 or apply force to it with his / her fingers inserted into the rear first space Pc, making it easier to pull the diaper 1 upward and easier for the wearer to put on the diaper 1.

[0082] As shown in Figure 5, in the back first space Pc, the boundary between one end of the back non-fixed part U34 in the left-right direction and the back fixed part T34 in the left-right direction is defined as one-side boundary point ex, and the boundary between the other end of the back non-fixed part U34 in the left-right direction and the back fixed part T34 in the left-right direction is defined as the other-side boundary point ey. At this time, in the stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched, the one-side boundary point ex1 at the first position P1 is located on the other side in the left-right direction than the one-side boundary point ex at any other position in the up-down direction, and the one-side boundary point ex2 at the second position P2 is located on one side in the left-right direction than the one-side boundary point ex at any other position in the up-down direction. In the left-right direction, the region between one-side boundary point ex1 at the first position P1 and one-side boundary point ex2 at the second position P2 is defined as an adjacent region Rc. This adjacent region Rc has an upper adjacent region Rct above the center cr in the vertical direction of the back side first space Pc, and a lower adjacent region Rce below the center cr in the vertical direction of the back side first space Pc. In Fig. 5, the upper adjacent region Rct is indicated by a diagonal line slanting downward to the left, and the lower adjacent region Rce is indicated by a diagonal line slanting downward to the right.

[0083] With respect to the upper adjacent region Rct and the lower adjacent region Rce, it is preferable that the peel strength per unit area for peeling off the fixation between the outer layer sheet 32 ​​and the folded-back portion 34 in the upper adjacent region Rct is greater than the peel strength per unit area for peeling off the fixation between the outer layer sheet 32 ​​and the folded-back portion 34 in the lower adjacent region Rce.

[0084] As a result, even when a wearer presses his / her finger against the upper end portion inside the first back space Pc and applies an upward force to pull up the diaper 1 in order to put on the diaper 1, the risk of the outer sheet 32 ​​and the folded-back portion 34 peeling away from each other in the upper adjacent region Rct can be reduced compared to when the peel strength per unit area of ​​the upper adjacent region Rct is made smaller than the peel strength per unit area of ​​the lower adjacent region Rce. This makes it easier for the wearer to pull up the diaper 1 while reducing concerns that the diaper 1 may be damaged by the act of putting it on.

[0085] On the other hand, for the upper adjacent region Rct and the lower adjacent region Rce, the peel strength per unit area for peeling off the fixation between the outer layer sheet 32 ​​and the folded-back portion 34 in the upper adjacent region Rct may be smaller than the peel strength per unit area for peeling off the fixation between the outer layer sheet 32 ​​and the folded-back portion 34 in the lower adjacent region Rce.

[0086] As a result, even when a wearer inserts his / her finger into the first back space Pc to pull up the diaper 1 in order to put on the diaper 1, the risk of the fixation between the outer sheet 32 ​​in the lower adjacent region Rce and the folded-back portion 34 peeling away can be reduced compared to when the peel strength per unit area of ​​the upper adjacent region Rct is made greater than the peel strength per unit area of ​​the lower adjacent region Rce. This makes it easier for the wearer to pull up the diaper 1 while reducing concerns that the diaper 1 may be damaged during the act of putting on the diaper.

[0087] The peel strength, which indicates the force required to peel off the outer sheet 32 ​​from the folded-back portion 34, is also the bonding strength, which indicates the strength of the fixation between the outer sheet 32 ​​and the folded-back portion 34. The peel strength of each adjacent region Rct, Rce can be measured by a known method. For example, the upper adjacent region Rct and the lower adjacent region Rce are cut out and each is made into a sample piece. Then, for each sample piece, tape is applied to both ends of the inner sheet 31 (the member closest to the skin of the back waist portion 30) and the folded-back portion 34 to create a pair of gripping parts. The pair of gripping parts are each clamped by the chucks of a tensile tester. Then, the load of the tensile tester is set to zero and measurement is started. The chuck distance is 10 mm, the tensile speed is 100 mm / min, and the maximum load is read. This measurement is performed multiple times (N=10) to calculate the average value of the maximum load. The calculated maximum load is converted into the load per unit width (N / 25mm), and the magnitude of the peeling force is divided by the area of ​​the upper adjacent region Rct and the lower adjacent region Rce to obtain the peel strength per unit area. It is recommended to compare the results. The peel strength should be measured in a constant environment (for example, temperature 20°C (±2°C), humidity 60% (±5%)) with the sample piece temperature stable.

[0088] The rear waist portion 30 may have not only the rear first space Pc provided on the other side in the left-right direction, but also a rear second space Pd (another space) different from the rear first space Pc. Fig. 6 is an enlarged schematic view of a portion Y in Fig. 2. The rear second space Pd in ​​this embodiment is provided on one side of the center CC in the left-right direction of the rear waist portion 30, at a position spaced apart in the left-right direction from the rear first space Pc and from the end joint portion 40 on one side in the left-right direction of the diaper 1.

[0089] The back-side second space Pd, like the back-side first space Pc, has an outer layer sheet portion 32 and a folded-back portion (sheet portion) 34 on the non-skin side of the outer layer sheet 32, and the folded-back portion 34 has a back-side fixed portion T34 fixed to the outer layer sheet 32 ​​by a fixing means S, and a back-side non-fixed portion U34 not fixed to the outer layer sheet 32. The back-side second space Pd, which is a space between the outer layer sheet 32 ​​and the back-side non-fixed portion U34 of the folded-back portion 34, is configured so that a finger can be inserted from below. Note that, like the back-side first space Pc, the "back-side second space Pd" is a space between the outer layer sheet 32 ​​and the folded-back portion 34 that is configured so that a finger can be inserted from below. In other words, it is a back-side non-fixed portion U34 in which the outer layer sheet 32 ​​and the folded-back portion 34 are not fixed, and the back-side non-fixed portion U34 has a length in the vertical direction that is long enough to allow a finger to be inserted from the lower end of the folded-back portion 34. It is preferable that the specific lengths of the rear second space Pd in ​​the up-down direction and the left-right direction are the same as those of the rear first space Pc.

[0090] In the present embodiment, the first back space Pc and the second back space Pd are formed by one folded-back portion 34, but are not limited to this. The sheet portion for forming the first back space Pc and the sheet portion for forming the second back space Pd may be separate sheet portions or may be discontinuous sheet portions.

[0091] With regard to the fastening means S for forming the back-side second space Pd, the fastening means S is provided adjacent to one end dx3 of the back-side non-fixed portion U34 in the left-right direction at a third position P3 in the up-down direction. In this embodiment, the back-side first space Pc and the back-side second space Pd are formed by one folded-back portion 34, the fastening means S for forming the back-side first space Pc and the fastening means S for forming the back-side second space Pd have a continuous portion, and the back-side fixed portion T34 has a continuous portion from one end of the back-side waist portion 30 to the other end in the left-right direction.

[0092] In the stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched, in the back first space Pc, the distance between the end ex on one side in the left-right direction and the end ey on the other side in the left-right direction of the back non-fixed part U34 is shortest at the first position P1 in the vertical direction, and in the back second space Pd, the distance between the end dx on one side in the left-right direction and the end dy on the other side in the left-right direction of the back non-fixed part U34 is shortest at the third position P3 in the vertical direction. In such a case, it is preferable that the distance L1 between the end ex1 on one side in the left-right direction and the end ey1 on the other side in the left-right direction of the back non-fixed part U34 at the first position P1 in the vertical direction is different from the distance L3 between the end dx3 on one side in the left-right direction and the end dy3 on the other side in the left-right direction of the back non-fixed part U34 at the third position P3 in the vertical direction. In other words, it is preferable that the minimum value of the left-right length of the back first space Pc is different from the minimum value of the left-right length of the back second space Pd. In this embodiment, the distance L1 between the end ex1 on one side and the end ey1 on the other side at the first position P1 is longer than the distance L3 between the end dx3 on one side in the left-right direction and the end dy3 on the other side at the third position P3 (see Figures 5 and 6).

[0093] This allows the wearer to easily recognize that he or she has inserted his or her finger into at least one of the rear-side first space Pc or the rear-side second space Pd, so that the wearer's finger can easily come into contact with an uneven portion on the inside (inner wall) of the rear-side first space Pc or the rear-side second space Pd, and the wearer can easily grasp or apply force to the rear-side waist portion 30 with his or her finger inserted into the rear-side first space Pc or the rear-side second space Pd, which makes it easier for the wearer to pull the diaper 1 upward and makes it easier for the wearer to wear the diaper 1. In addition, by changing the distance L1 between the end ex1 on one side of the rear-side first space Pc and the end ey1 on the other side, and the distance L3 between the end dx3 on one side of the rear-side second space Pd and the end dy3 on the other side, depending on the wearer's dominant hand, the diaper 1 can be made easier for the wearer to wear.

[0094] With regard to the first back space Pc and the second back space Pd of the back waist portion 30, in a stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched, at the first position P1 in the up-down direction, it is preferable that the distance L1 between the end ex1 on one side in the left-right direction and the end ey1 on the other side in the left-right direction of the back non-fixed portion U34 of the first back space Pc is different from the distance Ld1 between the end dx1 on one side in the left-right direction and the end dy1 on the other side in the left-right direction of the back non-fixed portion U34 of the second back space Pd.

[0095] This allows the wearer to easily recognize that he or she has inserted his or her finger into at least one of the rear-side first space Pc or the rear-side second space Pd, and therefore the wearer's finger can easily come into contact with the uneven portion on the inside (inner wall) of the rear-side first space Pc, making it easier for the wearer to grasp or apply force to the rear-side waist portion 30 with his or her finger inserted into the rear-side first space Pc or the rear-side second space Pd, which makes it easier for the wearer to pull the diaper 1 upward, making it easier for the wearer to wear the diaper 1. Furthermore, by changing the distance L1 between one end ex1 and the other end ey1 of the rear-side first space Pc and the distance Ld1 between one end dx1 and the other end dy1 of the rear-side second space Pd in ​​accordance with the wearer's dominant hand, the diaper 1 can be made easier for the wearer to wear.

[0096] In a plan view of the back waist portion 30 (see Fig. 1B, Fig. 2, etc.), it is preferable that the folded-back portion 34 has a portion different in color or pattern from the outer layer sheet 22 (or the inner layer sheet 21). For example, the outer layer sheet 22 may be white and the folded-back portion 34 may be blue, or the outer layer sheet 22 may be a plain sheet and the folded-back portion 34 may have a floral pattern. In addition, in a plan view of the back waist portion 30, a portion of the folded-back portion 34 that overlaps with the first back space Pc may have a portion different in color or pattern from the outer layer sheet 22.

[0097] This makes it easier for the wearer to visually recognize that the diaper 1 has the first rear-side space Pc into which a finger can be inserted, making it easier for the wearer to insert a finger into the first rear-side space Pc, and making it easier for the wearer to put on the diaper 1.

[0098] In addition, in a plan view of the back waist portion 30 (see FIG. 1B, FIG. 2, etc.), the portion overlapping with the back first space Pc may have a different light transmittance from the periphery of the back first space Pc. The light transmittance can be measured by a known method. For example, the light transmittance of the back first space Pc and the portion surrounding the back first space Pc can be measured as follows based on JIS-K7105. First, a sample piece having a width of 30 mm and a length of 30 mm is taken from the portion to be measured. Then, the Tt value (%) of the taken sample piece is measured using a commercially available color difference meter (for example, Nippon Denshoku Kogyo Co., Ltd., Public Illumination Photometric Color Difference Meter Z-300A) to obtain the total light transmittance. Note that the color difference meter is turned on 30 minutes before the measurement.

[0099] The rear waist portion 30 may be provided with a mark (not shown) for indicating the position of the rear first space Pc. Examples of the mark for indicating the position of the rear first space Pc include an arrow, wording, a design, and the like, which indicate the position of the rear first space Pc. Providing a mark for indicating the position of the rear first space Pc on the rear waist portion 30 makes it easier for the wearer to recognize the position of the rear first space Pc. This makes it easier for the wearer to insert their fingers into the first rear space Pc, making it easier to put on the diaper 1.

[0100] Also, like the diaper 1, it is preferable that the back-side waistline portion 30 is provided with the back-side first space Pc, and it is preferable that the back-side waistline portion 30 is provided with a lower elastic member 33s (lower elastic member) that is a waistline elastic member (elastic member) 33 that stretches in the left-right direction below the folded-back portion 34. FIG. 7 is an enlarged view of the back-side waistline portion 30 in FIG. 2. As shown in FIG. 7, by providing the lower elastic member 33s that stretches in the left-right direction below the lower end 34e of the folded-back portion 34, the lower side of the back-side first space Pc is easily opened by contraction of the lower elastic member 33s. This makes it easier for the wearer to insert his / her fingers into the back-side first space Pc even on the back side that is difficult to see directly when worn.

[0101] When the back-side first space Pc is provided in the back-side waistline portion 30, in addition to the lower elastic member 33s provided below the folded-back portion 34 of the back-side waistline portion 30, it is preferable to provide an elastic member 33 that expands and contracts in the left-right direction above the folded-back portion. The elastic member 33 has a lower first elastic member (lower elastic member, lower first elastic member) 33sa, a lower second elastic member (lower second elastic member) 33sb, an upper first elastic member (upper elastic member, upper first elastic member) 33ua, and an upper second elastic member (upper second elastic member) 33ub. The lower first elastic member 33sa is adjacent to the lower end 34e of the folded-back portion 34 from below. The lower second elastic member 33sb is adjacent to the lower first elastic member 33sa. The upper first elastic member 33ua is adjacent to the lower end 34e of the folded-back portion 34 from above. The upper second elastic member 33ub is adjacent to the upper first elastic member 33ua from above.

[0102] For the waistline elastic members 33 of the back waistline portion 30, it is preferable that the force that stretches the lower first elastic member 33sa by a unit length is greater than the force that stretches the upper first elastic member 33ua by a unit length. This makes it easier for the lower side of the backside first space Pc to open due to contraction of the lower elastic member 33s than when the force that stretches the lower first elastic member 33sa by a unit length is smaller than the force that stretches the upper first elastic member 33ua by a unit length. This makes it easier for the wearer to insert his / her fingers into the backside first space Pc even on the back side, which is difficult to see directly when worn.

[0103] In addition, it is more preferable that the distance Ls between the lower first elastic member 33sa and the lower second elastic member 33sb of the waistline elastic member 33 of the back waistline portion 30 is shorter than the distance Lu between the upper first elastic member 33ua and the upper second elastic member 33ub. The shorter the distance between adjacent waistline elastic members 33 in the vertical direction, the easier it is to contract the back waistline portion 30 in the left-right direction. Therefore, when the distance Ls is shorter than the distance Lu, the back waistline portion 30 is more easily contracted in the left-right direction by the waistline elastic member 33 than when the distance Ls is longer than the distance Lu, and the lower side of the back first space Pc is more easily opened. This makes it easier for the wearer to insert his or her fingers into the back first space Pc, even on the back side where it is difficult to see directly when wearing the garment.

[0104] In the back waist portion 30, the lower end of the folded-back portion 34 has a non-adhesive portion DE between the outer layer sheet 32 ​​and the lower end of the folded-back portion 34, and the non-adhesive portion DE is preferably continuous with the back first space Pc. The non-adhesive portion DE is an area where the lower end of the folded-back portion 34 is not adhered to the outer layer sheet 32, and is an area that opens downward, but is not large enough to allow the wearer to insert his / her finger. However, since the non-adhesive portion DE is continuous with the back first space Pc, the non-adhesive portion DE becomes a catch for opening the back first space Pc, making it easier for the lower side of the back first space Pc to open. This makes it easier for the wearer to insert his / her finger into the back first space Pc.

[0105] In addition, in the back waist portion 30, a non-adhesive portion um is preferably provided between the folded portion 34 and the outer layer sheet 32, where the folded portion 34 and the outer layer sheet 32 ​​are not adhered to each other. This non-adhesive portion um preferably has a portion that continues from the end joint portion 40 on one side in the left-right direction to the end joint portion 40 on the other side in the left-right direction between the first position P1 and the second position P2 in the up-down direction. The non-adhesive portion um is not large enough to insert a finger. By having such a non-adhesive portion um, when a finger is inserted into the back first space Pc, the wearer can easily touch the left and right inner walls of the folded portion 34 inside the back first space Pc. Therefore, the wearer can easily recognize that a finger has been inserted into the back first space Pc, and the diaper 1 can be easily put on.

[0106] In addition, in the back waist portion 30, it is preferable that the folded-back portion 34 has a portion having a higher rigidity than the outer layer sheet 32. The folded-back portion 34 of the back waist portion 30 of the diaper 1 of this embodiment is a portion where the inner layer sheet 31 is folded back toward the non-skin side, and the folded-back portion 34 has a portion having a higher rigidity than the outer layer sheet 32 ​​by having a portion f where the tip of the folded-back portion 34 is further folded back toward the skin side. This increases the rigidity of the folded-back portion 34, and when a finger is inserted into the back first space Pc, it becomes easier to apply force to the back waist portion 30, while reducing the risk of the diaper 1 being damaged. The method of providing the folded-back portion 34 with a higher rigidity is not limited to the folded-back portion f, but may include fixing a sheet member other than the inner layer sheet 31 or the outer layer sheet 32 ​​to the folded-back portion 34, or using a sheet member having a higher rigidity other than the inner layer sheet 31 or the outer layer sheet 32 ​​as the "sheet member" instead of the folded-back portion 34.

[0107] It is preferable that not only the rear waist portion 30 but also the ventral waist portion (other-side waist portion) 20 has the ventral first space Pa or the ventral second space Pb. Fig. 8 is an enlarged schematic view of a portion Z in Fig. 2. The diaper 1 has the ventral second space Pb in addition to the ventral first space Pa. The ventral second space Pb has the same configuration as the ventral first space Pa described below, and therefore details thereof will be omitted.

[0108] The abdominal waist portion 20 of the diaper 1 of this embodiment includes an inner layer sheet 21 and an outer layer sheet 22 (a pair of other side waist portion portions) joined together, and has an abdominal fold-back portion (other side fold-back portion) 24 on the non-skin side of the outer layer sheet 22. The abdominal fold-back portion 24 has an abdominal fixed portion (other side fixed portion) T24 fixed to the outer layer sheet 22 by a fixing means S, and an abdominal non-fixed portion (other side non-fixed portion) U24 not fixed to the outer layer sheet 22. An abdominal first space Pa, which is a space between the outer layer sheet 22 and the abdominal non-fixed portion U24 of the abdominal fold-back portion 24, is configured so that a finger can be inserted from below. The upper end tpa of the abdominal first space Pa is the lowest position of the fixing means S adjacent to the abdominal non-fixed portion U24 in the up-down direction.

[0109] The main configurations of the "ventral fold-back portion 24," "fixing means S," "ventral fixed portion T24," "ventral non-fixed portion U24," and "ventral first space Pa" are similar to those of the above-mentioned dorsal fold-back portion 34, fixing means S, dorsal fixed portion T34, dorsal non-fixed portion U34, and dorsal first space Pc, and therefore detailed explanations are omitted.

[0110] The abdominal first space Pa is provided on the other side of the left-right center CC of the abdominal waist portion 20, and is provided at a position spaced apart in the left-right direction from the end joint portion 40 on the other side of the left-right direction of the diaper 1.

[0111] With regard to the fixing means S for forming the first ventral space Pa, at the fourth position P4 in the vertical direction, the fixing means S is provided adjacent to the end ax4 on one side in the left-right direction of the ventral non-fixed portion U24, and the fixing means S is provided adjacent to the end ay4 on the other side in the left-right direction of the ventral non-fixed portion U24.

[0112] In the stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched, in the back first space Pc, the distance between the end ex on one side in the left-right direction and the end ey on the other side in the left-right direction of the back non-fixed part U34 is shortest at the first position P1 in the vertical direction, and in the ventral first space Pa, the distance between the end ax on one side in the left-right direction and the end ay on the other side in the left-right direction of the ventral non-fixed part U24 is shortest at the fourth position P4 in the vertical direction. In such a case, it is preferable that the distance L1 between the end ex1 on one side in the left-right direction and the end ey1 on the other side in the left-right direction of the back non-fixed part U34 at the first position P1 in the vertical direction is different from the distance L4 between the end ax4 on one side in the left-right direction and the end ay4 on the other side in the left-right direction of the ventral non-fixed part U24 at the fourth position P4 in the vertical direction. In this embodiment, the distance L1 between the end ex1 on one side and the end ey1 on the other side at the first position P1 is longer than the distance L4 between the end ax4 on one side in the left-right direction and the end ay4 on the other side at the fourth position P4 (see Figures 5 and 8).

[0113] This makes it easier for the wearer to recognize that he or she has inserted his or her fingers into at least one of the dorsal first space Pc or the ventral first space Pa, making it easier for the wearer's fingers to come into contact with uneven portions on the inside (inner wall) of the dorsal first space Pc or the ventral first space Pa, making it easier for the wearer to grasp or apply force to the dorsal waist portion 30 with his or her fingers inserted into the ventral first space Pa, which makes it easier for the wearer to pull the diaper 1 upwards, making it easier for the wearer to put on the diaper 1.

[0114] Also, as shown in Figure 5, in the back first space Pc, the boundary between one end of the back non-fixed part U34 in the left-right direction and the back fixed part T34 in the left-right direction is defined as the back one-side boundary point ex, and the boundary between the other end of the back non-fixed part U34 in the left-right direction and the back fixed part T34 in the left-right direction is defined as the back other-side boundary point ey. At this time, in a stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched, the back one-side boundary point ex1 at the first position P1 is located on the other side in the left-right direction than the back one-side boundary point ex at any other position in the up-down direction, and the back one-side boundary point ex1 at the second position P2 is located on one side in the left-right direction than the back one-side boundary point ex at any other position in the up-down direction. In the left-right direction, the region between the back one-side boundary point ex1 at the first position P1 and the back one-side boundary point ex2 at the second position P2 is defined as an adjacent region Rc.

[0115] Also in the ventral waist portion 20, as shown in FIG. 8, with respect to the ventral fixed portion T24 and the ventral non-fixed portion U24, a fixing means S is provided adjacent to one end ax5 of the ventral non-fixed portion U24 in the left-right direction at a fifth position P5 in the vertical direction, and a fixing means S is provided adjacent to one end ax6 of the dorsal non-fixed portion U34 in the left-right direction at a sixth position P6 in the vertical direction. In a stretched state in which the dorsal waist portion 30 and the ventral waist portion 20 are stretched, an end ax5 on one side of the ventral non-fixed portion U24 at the fifth position P5 and an end ay6 on one side of the ventral non-fixed portion U24 at the sixth position P6 are located at different positions in the left-right direction.

[0116] In the first ventral space Pa, the boundary between one end of the ventral non-fixed part U24 in the left-right direction and the ventral fixed part T24 is defined as the ventral one-side boundary point ax, and the boundary between the other end of the ventral non-fixed part U24 in the left-right direction and the ventral fixed part T24 is defined as the ventral other-side boundary point ay. At this time, in a stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched, the ventral one-side boundary point ax5 at the fifth position P5 is located on the other side in the left-right direction than the ventral one-side boundary point ax at any other position in the up-down direction, and the ventral one-side boundary point ax6 at the sixth position P6 is located on one side in the left-right direction than the ventral one-side boundary point ax at any other position in the up-down direction. Then, in the left-right direction, the region between the ventral one-side boundary point ax5 at the fifth position P5 and the ventral one-side boundary point ax6 at the sixth position P6 is defined as an adjacent region Ra.

[0117] Regarding the adjacent regions Rc and Ra, in the stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched, the region Er is between the upper end tpc of the back first space Pc and the lower end 34e of the back folded-back portion 34 in the back adjacent region Rc, and the region Ar is between the upper end tpa of the ventral first space Pa and the lower end 24e of the ventral folded-back portion 24 in the ventral adjacent region Ra. In Fig. 5, the region Er is the combined region of the upper adjacent region Rct and the lower adjacent region Rce. In Fig. 8, the region Ar is the region indicated by the diagonal lines slanting downward to the right. In such a case, it is preferable that the peel strength per unit area for peeling off the fixation between the outer layer sheet 22 and the ventral fold portion 24 in region Ar is greater than the peel strength per unit area for peeling off the fixation between the outer layer sheet 32 ​​and the dorsal fold portion 34 in region Er. The peel strength per unit area of ​​each region can be measured by the same method as described above.

[0118] The presence of such a ventral waist portion 20 and a back waist portion 30 reduces the risk of the diaper 1 getting caught on the buttocks or the like on the back side of the wearer when pulling up the diaper 1, causing excessive force to be applied to the ventral side of the diaper 1 and damaging the diaper 1, compared to a case in which the peel strength per unit area for peeling the outer sheet 22 and the ventral fold-back portion 24 in the region Ar is smaller than the peel strength per unit area for peeling the outer sheet 32 ​​and the ventral fold-back portion 34 in the region Er. This makes it easier to pull up the diaper 1 by inserting a finger into the back first space Pc or the ventral first space Pa, while reducing the risk of damage to the diaper 1.

[0119] With respect to the adjacent regions Rc and Ra, in a stretched state in which the back waist portion 30 and the ventral waist portion 20 are stretched, the peel strength per unit area for peeling the outer layer sheet 32 ​​from the back fold-back portion 34 in the region Er may be greater than the peel strength per unit area for peeling the outer layer sheet 22 from the ventral fold-back portion 24 in the region Ar. In this way, it is possible to reduce the risk of the diaper 1 being damaged when the wearer pulls up the diaper 1, due to excessive force being applied to the back side of the diaper 1 as a result of the diaper 1 getting caught on the male genitalia or the like on the ventral side of the wearer, compared to a case in which the peel strength per unit area for peeling the outer layer sheet 32 ​​from the back fold-back portion 34 in the region Er is smaller than the peel strength per unit area for peeling the outer layer sheet 22 from the ventral fold-back portion 24 in the region Ar. This makes it easier to pull up the diaper 1 by inserting fingers into the dorsal-side first space Pc and the abdominal-side first space Pa, while reducing the risk of damage to the diaper 1.

[0120] In addition to the above-mentioned configuration, the back waist portion 30 (or the skin-side waist portion 20) of the diaper 1 may have an opening penetrating at least the outer layer sheet 32 ​​(outer layer sheet 22) in the thickness direction. The opening is large enough to allow at least one finger to be inserted. By providing such an opening, a finger can be inserted into the opening in addition to the back first space Pc (ventral first space Pa), making it easier to apply force to the back waist portion 30 (ventral waist portion 20) and to pull up the back waist portion 30 (ventral waist portion 20). The opening of the back waist portion 30 may be an opening penetrating only the outer layer sheet 32, or may be an opening penetrating both the outer layer sheet 32 ​​and the inner layer sheet 31. The opening may be provided below the lower end 34e of the folded-back portion 34, or may be provided at a position overlapping the folded-back portion 34 in a plan view of the back waist portion 30.

[0121] <<Modifications>> 9 and 10 show modified examples of the diaper 1. In FIG. Fig. 9A is a schematic front view of a diaper 1 according to a modification of this embodiment as viewed from the ventral side, and Fig. 9B is a schematic front view of a diaper 1 according to a modification of this embodiment as viewed from the dorsal side. As shown in Figs. 9A and 9B, any one of the side ends of the spaces Pa, Pb, Pc, and Pd may be provided at the same position as the inner end of the end joint portion 40 in the left-right direction. Specifically, for example, the other end in the left-right direction of the non-fixed portion U34 of the dorsal first space Pc may be the inner end of the end joint portion 40 on the other side in the left-right direction of the diaper 1, and the fixing means S may be welding for forming the end joint portion 40.

[0122] Fig. 10A is a schematic front view of a diaper 1 according to a modification of this embodiment, as viewed from the ventral side. Fig. 10B is a schematic front view of a diaper 1 according to a modification of this embodiment, as viewed from the dorsal side. As shown in Figs. 10A and 10B, the upper end of any one of the spaces Pa, Pb, Pc, and Pd may be provided at the same position as the folded-back portions 34 and 24. Specifically, the vertical length of the dorsal first space Pc is approximately the same as the length of the folded-back portion 34.

[0123] Even in the modified example of diaper 1 shown in Figures 9 and 10, the wearer's fingers can easily come into contact with the uneven portions on the inside (inner wall) of each space Pa, Pb, Pc, and Pd, making it easier for the wearer to grasp or apply force to the dorsal waist portion 30 and the ventral waist portion 20 with their fingers inserted into each space Pa, Pb, Pc, and Pd, making it easier for the wearer to pull diaper 1 upwards, making it easier for the wearer to put on the diaper 1.

[0124] In the above embodiment, the back waist portion 30 is the "one side waist portion" and the back first space Pc has the above-mentioned characteristics, but this is not limited thereto. The ventral waist portion 20 may be the "one side waist portion" and either of the ventral spaces Pa and Pb may have the above-mentioned characteristics. When wearing the pants-type diaper 1, it is common to first grasp the ventral waist portion 20 and pull up the ventral waist portion 20, whether the wearer puts it on by himself or a caregiver or guardian has the wearer put it on. Therefore, by providing the ventral waist portion 20 with the ventral spaces Pa and Pb, it becomes easier to grasp the ventral waist portion 20 and pull up the diaper 1.

[0125] Furthermore, in the case where the diaper 1 has not only the rear spaces Pc, Pd of the rear waist portion 30 but also the ventral spaces Pa, Pb of the ventral waist portion 20, by making the vertical length of the fold-back portion 24 of the ventral waist portion 20 shorter than the vertical length of the fold-back portion 34 of the rear waist portion 30, the visibility of the fold-back portion 24 of the ventral waist portion 20 and the ventral spaces Pa, Pb is improved, making the ventral waist portion 20 easier to operate and wear.

[0126] In addition, the dorsal first space Pc, the dorsal second space Pd, the ventral first space Pa, and the ventral second space Pb are each configured to have the above-mentioned characteristics, but are not limited to this. Any of the dorsal first space Pc, the dorsal second space Pd, the ventral first space Pa, and the ventral second space Pb may be configured to have the above-mentioned characteristics, and the dorsal first space Pc, the dorsal second space Pd, the ventral first space Pa, and the ventral second space Pb may not be configured to have the above-mentioned characteristics.

[0127] Furthermore, in the above embodiment, the spaces Pa, Pb, Pc, and Pd have the above-mentioned characteristics on both sides in the left-right direction, but this is not limited to this. It is sufficient that at least one of the spaces Pa, Pb, Pc, and Pd in ​​the left-right direction has the above-mentioned characteristics.

[0128] ===Other=== The above-mentioned embodiment is for the purpose of facilitating understanding of the present invention, and is not intended to limit the present invention. The present invention can be modified or improved without departing from the spirit of the present invention, and it goes without saying that the present invention includes equivalents thereof. [Explanation of symbols]

[0129] 1 Diapers (pants-type absorbent articles), 10 Absorbent body, 11 Absorber, 11a absorbent core, 11b core wrap sheet, 12 top sheet, 13 back sheet, 14 sheet member, 20 ventral waist portion (waist portion, other side waist portion), 21 inner layer sheet (body circumference sheet), 22 outer layer sheet (body circumference sheet), 23 waist elastic member, 24 Folded portion (other side sheet portion) 30 Back side waist part (waist part, one side waist part), 31 inner layer sheet (body circumference sheet), 32 outer layer sheet (body circumference sheet), 33 waist elastic member, 34 Folded portion (sheet portion, one side sheet portion), 35 Extension elastic member, 40 end joints; 50 leak-proof wall portion, 51 leak-proof wall elastic member, ex1 one end (boundary point), ex2 one end (boundary point), ey1 the other end, ey2 the other end, Pa ventral space 1 (ventral space), Pb ventral space 2 (ventral space, other spaces), Pc dorsal first space (dorsal space), Pd dorsal second space (dorsal space), Rc flanking region, Rct upper adjacent area, Rce lower adjacent area, S adhesive (fixing means), T24 ventral fixation part (other side fixation part), T34 Dorsal fixation part (fixation part, dorsal fixation part, one side fixation part), U24 Ventral non-fixed part (other side non-fixed part), U34 Dorsal non-fixed part (non-fixed part, dorsal non-fixed part, one side non-fixed part

Claims

1. having an up-down direction, a left-right direction, and a front-rear direction that intersect with one another, The garment comprises a first waist portion, an second waist portion, and a liquid-absorbent absorbent body, The one-side waist portion includes a pair of waist sheet portions joined to each other, A pants-type absorbent article having end joint portions at both side ends in the left-right direction, The one-side waist portion has a sheet portion on the skin side or the non-skin side of the pair of waist sheet portions, The sheet portion has a fixed portion fixed to the waist-circulating sheet portion by a fixing means and a non-fixed portion not fixed to the waist-circulating sheet portion, The space between the waist sheet portion and the non-fixed portion is configured so that a finger can be inserted from below, the fixing means is provided adjacent to one end of the non-fixed portion in the left-right direction at a first position in the up-down direction, the fixing means is provided adjacent to one end of the non-fixed portion in the left-right direction at a second position in the up-down direction, In a state in which the one-side waistline portion and the other-side waistline portion are stretched, an end on one side in the left-right direction of the non-fixed portion at the first position and an end on one side in the left-right direction of the non-fixed portion at the second position are provided at different positions in the left-right direction. A pants-type absorbent article characterized by:

2. The pants-type absorbent article according to claim 1, the fixing means is provided adjacent to an end of the non-fixed portion on the other side in the left-right direction at a first position in the up-down direction, the fixing means is provided adjacent to an end of the non-fixed portion on the other side in the left-right direction at a second position in the up-down direction, A pants-type absorbent article characterized in that, when the one side waist portion and the other side waist portion are stretched, the other end of the non-fixed portion in the left-right direction at the first position and the other end of the non-fixed portion in the left-right direction at the second position are located at different positions in the left-right direction.

3. The pants-type absorbent article according to claim 1 or 2, the fixing means is provided adjacent to an end of the non-fixed portion on the other side in the left-right direction at a first position in the up-down direction, the fixing means is provided adjacent to an end of the non-fixed portion on the other side in the left-right direction at a second position in the up-down direction, A pants-type absorbent article characterized in that, when the one side waist portion and the other side waist portion are stretched, the distance between the one end of the non-fixed portion in the left-right direction and the other end of the non-fixed portion in the left-right direction at the first position is different from the distance between the one end of the non-fixed portion in the left-right direction and the other end of the non-fixed portion in the left-right direction at the second position.

4. The pants-type absorbent article according to claim 1 or 2, the fixing means is provided adjacent to an end of the non-fixed portion on the other side in the left-right direction at a first position in the up-down direction, The one-side waist portion has another space different from the space, The other space is between the waist sheet portion and the non-fixed portion, and is configured so that a finger can be inserted from the lower side, At a third position in the up-down direction, the fixing means is provided adjacent to an end on one side in the left-right direction of the non-fixed portion of the other space, and the fixing means is provided adjacent to an end on the other side in the left-right direction of the non-fixed portion, In a state in which the one-side waistline portion and the other-side waistline portion are stretched, In the space, a distance between an end on one side in the left-right direction and an end on the other side in the left-right direction of the non-fixed portion is shortest at a first position in the up-down direction, In the other space, a distance between an end on one side in the left-right direction and an end on the other side in the left-right direction of the non-fixed portion is shortest at a third position in the up-down direction, A pants-type absorbent article characterized in that the distance between one end of the non-fixed part in the left-right direction and the other end of the non-fixed part in the left-right direction at a first position in the vertical direction is different from the distance between one end of the non-fixed part in the left-right direction and the other end of the non-fixed part in the left-right direction at a third position in the vertical direction.

5. The pants-type absorbent article according to claim 1 or 2, the fixing means is provided adjacent to an end of the non-fixed portion on the other side in the left-right direction at a first position in the up-down direction, The one-side waist portion has another space different from the space, The other space is between the waist sheet portion and the non-fixed portion, and is configured so that a finger can be inserted from the lower side, the fixing means is provided adjacent to an end of the non-fixed portion of the other space in the left-right direction at a first position in the up-down direction, and the fixing means is provided adjacent to an end of the non-fixed portion of the other space in the left-right direction, A pants-type absorbent article characterized in that, when the one side waist portion and the other side waist portion are stretched, at a first position in the vertical direction, the distance between the one end of the non-fixed portion of the space in the left-right direction and the other end of the non-fixed portion in the left-right direction is different from the distance between the one end of the non-fixed portion of the other space in the left-right direction and the other end of the non-fixed portion in the left-right direction.

6. The pants-type absorbent article according to claim 1 or 2, The space of the one-side waist portion is a one-side space, the fixed portion is a one-side fixed portion, and the non-fixed portion is a one-side non-fixed portion, the fixing means is provided adjacent to an end of the non-fixed portion on the other side in the left-right direction at a first position in the up-down direction, The other-side waistline portion includes a pair of other-side waistline sheet portions joined to each other, The other-side waistline portion has an other-side sheet portion on the skin side or the non-skin side of the pair of other-side waistline sheet portions, the other-side sheet portion has a other-side fixed portion fixed to the other-side waistline sheet portion by a fixing means, and a other-side non-fixed portion not fixed to the other-side waistline sheet portion, The other-side space between the other-side waist sheet portion and the other-side non-fixed portion is configured so that a finger can be inserted from below, At a fourth position in the up-down direction of the other-side waistband portion, the fastening means is provided adjacent to one end of the other-side non-fixed portion in the left-right direction, and the fastening means is provided adjacent to the other end of the other-side non-fixed portion in the left-right direction, In a state in which the one-side waistline portion and the other-side waistline portion are stretched, In the one-side space, a distance between an end on one side in the left-right direction and an end on the other side in the left-right direction of the one-side non-fixed part is shortest at the first position, In the other-side space, a distance between an end on one side in the left-right direction and an end on the other side in the left-right direction of the other-side non-fixed part is shortest at a fourth position in the up-down direction, A pants-type absorbent article characterized in that the distance between the end on one side in the left-right direction of the one-side non-fixed part at the first position and the end on the other side in the left-right direction is different from the distance between the end on one side in the left-right direction of the other-side non-fixed part at the fourth position and the end on the other side in the left-right direction.

7. The pants-type absorbent article according to claim 1 or 2, a boundary between one end of the non-fixed portion in the left-right direction and the fixed portion in the left-right direction is defined as a one-side boundary point; When the boundary between the other end of the non-fixed portion in the left-right direction and the fixed portion in the left-right direction is defined as the other-side boundary point, In a state in which the one-side waistline portion and the other-side waistline portion are stretched, the one-side boundary point at the first position is located on the other side in the left-right direction than the one-side boundary point at any other position in the up-down direction, the one-side boundary point at the second position is located on one side in the left-right direction relative to the one-side boundary point at any other position in the up-down direction, an adjacent area in the left-right direction between the one-side boundary point at the first position and the one-side boundary point at the second position; the adjacent region includes an upper adjacent region above a center of the space in the up-down direction and a lower adjacent region below a center of the space in the up-down direction, A pants-type absorbent article characterized in that the peel strength per unit area for peeling off the fixation between the waist sheet portion and the sheet portion in the upper adjacent region is greater than the peel strength per unit area for peeling off the fixation between the waist sheet portion and the sheet portion in the lower adjacent region.

8. The pants-type absorbent article according to claim 1 or 2, a boundary between one end of the non-fixed portion in the left-right direction and the fixed portion in the left-right direction is defined as a one-side boundary point; When the boundary between the other end of the non-fixed portion in the left-right direction and the fixed portion in the left-right direction is defined as the other-side boundary point, In a state in which the one-side waistline portion and the other-side waistline portion are stretched, the one-side boundary point at the first position is located on the other side of the one-side boundary point at any other position in the up-down direction, the one-side boundary point at the second position is located on one side of the one-side boundary point at any other position in the up-down direction, an adjacent area in the left-right direction between the one-side boundary point at the first position and the one-side boundary point at the second position; A pants-type absorbent article characterized in that the peel strength per unit area for peeling off the fixation between the waist sheet portion and the sheet portion in the upper adjacent region is smaller than the peel strength per unit area for peeling off the fixation between the waist sheet portion and the sheet portion in the lower adjacent region.

9. The pants-type absorbent article according to claim 1 or 2, The one-side waist portion is a back-side waist portion, The waist-circulating sheet portion is a back-side waist-circulating sheet portion, the sheet portion is a back-side sheet portion, and the space is a back-side space, The fixed portion is a dorsal fixed portion, and the non-fixed portion is a dorsal non-fixed portion, The other-side waist portion is a ventral-side waist portion, The ventral waist portion includes a pair of ventral waist sheet portions joined to each other, The ventral waist portion has a ventral sheet portion on the skin side or the non-skin side of the pair of ventral waist sheet portions, The abdominal-side sheet portion has a abdominal-side fixed portion fixed to the abdominal-side waistline sheet portion by a fixing means, and a abdominal-side non-fixed portion that is not fixed to the abdominal-side waistline sheet portion, The abdominal space between the abdominal waist sheet portion and the abdominal non-fixed portion is configured so that a finger can be inserted from below, The fastening means is provided adjacent to one end of the abdominal-side non-fixed portion in the left-right direction at a fifth position in the up-down direction of the abdominal-side waist portion, The fastening means is provided adjacent to one end of the abdominal-side non-fixed portion in the left-right direction at a sixth position in the up-down direction of the abdominal-side waist portion, A boundary between an end of the back side non-fixed part on one side in the left-right direction and the back side fixed part in the left-right direction is defined as a back side one-side boundary point, and a boundary between an end of the back side non-fixed part on the other side in the left-right direction and the back side fixed part is defined as a back side other-side boundary point, When the boundary between the end of the abdominal side non-fixed part on one side in the left-right direction and the abdominal side fixed part in the left-right direction is defined as the abdominal one-side boundary point, and the boundary between the end of the abdominal side non-fixed part on the other side in the left-right direction and the abdominal side fixed part is defined as the abdominal other-side boundary point, In a state in which the back side waist portion and the ventral side waist portion are stretched, The back one side boundary point at the first position is located on the other side of the back one side boundary point at any other position in the up-down direction of the back waist portion, The back one side boundary point at the second position is located on one side of the back one side boundary point at any other position in the up-down direction of the back waist portion, a back adjacent region in a region between the back one side boundary point at the first position and the back other side boundary point at the second position in the left-right direction; The abdominal one-side boundary point at the fifth position is located on the other side of the abdominal one-side boundary point at any other position in the vertical direction of the abdominal waist portion, The abdominal one-side boundary point at the sixth position is located on one side of the abdominal one-side boundary point at any other position in the vertical direction of the abdominal waist portion, In the left-right direction, an end on one side in the left-right direction of the ventral side non-fixed part at the fifth position and an end on one side in the left-right direction of the ventral side non-fixed part at the sixth position are provided at different positions, a ventral adjacent region in a region between the ventral one-side boundary point at the fifth position and the ventral other-side boundary point at the sixth position in the left-right direction; A pants-type absorbent article characterized in that the peel strength per unit area for peeling off the fixation between the ventral waist sheet portion and the ventral sheet portion in the ventral adjacent region and in the region from the upper end of the ventral space to the lower end of the ventral sheet portion is greater than the peel strength per unit area for peeling off the fixation between the dorsal waist sheet portion and the dorsal sheet portion in the dorsal adjacent region and in the region between the upper end of the dorsal space and the lower end of the dorsal sheet portion.

10. The pants-type absorbent article according to claim 1 or 2, The one-side waist portion is a back-side waist portion, The waist-circulating sheet portion is a back-side waist-circulating sheet portion, the sheet portion is a back-side sheet portion, and the space is a back-side space, The fixed portion is a dorsal fixed portion, and the non-fixed portion is a dorsal non-fixed portion, The other-side waist portion is a ventral-side waist portion, The ventral waist portion includes a pair of ventral waist sheet portions joined to each other, The ventral waist portion has a ventral sheet portion on the skin side or the non-skin side of the pair of ventral waist sheet portions, The abdominal-side sheet portion has a abdominal-side fixed portion fixed to the abdominal-side waistline sheet portion by a fixing means, and a abdominal-side non-fixed portion that is not fixed to the abdominal-side waistline sheet portion, The abdominal space between the abdominal waist sheet portion and the abdominal non-fixed portion is configured so that a finger can be inserted from below, The fastening means is provided adjacent to one end of the abdominal-side non-fixed portion in the left-right direction at a fifth position in the up-down direction of the abdominal-side waist portion, The fastening means is provided adjacent to one end of the abdominal-side non-fixed portion in the left-right direction at a sixth position in the up-down direction of the abdominal-side waist portion, A boundary between an end of the back side non-fixed part on one side in the left-right direction and the back side fixed part in the left-right direction is defined as a back side one-side boundary point, and a boundary between an end of the back side non-fixed part on the other side in the left-right direction and the back side fixed part is defined as a back side other-side boundary point, When the boundary between the end of the abdominal side non-fixed part on one side in the left-right direction and the abdominal side fixed part in the left-right direction is defined as the abdominal one-side boundary point, and the boundary between the end of the abdominal side non-fixed part on the other side in the left-right direction and the abdominal side fixed part is defined as the abdominal other-side boundary point, In a state in which the back side waist portion and the ventral side waist portion are stretched, The back one side boundary point at the first position is located on the other side of the back one side boundary point at any other position in the up-down direction of the back waist portion, The back one side boundary point at the second position is located on one side of the back one side boundary point at any other position in the up-down direction of the back waist portion, a back adjacent region in a region between the back one side boundary point at the first position and the back other side boundary point at the second position in the left-right direction; The abdominal one-side boundary point at the fifth position is located on the other side of the abdominal one-side boundary point at any other position in the vertical direction of the abdominal waist portion, The abdominal one-side boundary point at the sixth position is located on one side of the abdominal one-side boundary point at any other position in the vertical direction of the abdominal waist portion, In the left-right direction, an end on one side in the left-right direction of the ventral side non-fixed part at the fifth position and an end on one side in the left-right direction of the ventral side non-fixed part at the sixth position are provided at different positions, a ventral adjacent region in a region between the ventral one-side boundary point at the fifth position and the ventral other-side boundary point at the sixth position in the left-right direction; A pants-type absorbent article characterized in that the peel strength per unit area for peeling off the fastening between the back waist sheet portion and the back sheet portion in the back adjacent region between the upper end of the back space and the lower end of the back sheet portion is greater than the peel strength per unit area for peeling off the fastening between the ventral waist sheet portion and the ventral sheet portion in the ventral adjacent region between the upper end of the ventral space and the lower end of the ventral sheet portion.

11. The pants-type absorbent article according to claim 1 or 2, A pants-type absorbent article, characterized in that, in a plan view of the one side waistline, the sheet portion has a portion having a different color or pattern from the waistline sheet portion.

12. The pants-type absorbent article according to claim 1 or 2, A pants-type absorbent article, characterized in that, in a plan view of the one side waistline, a portion overlapping with the space has a different light transmittance than the surrounding area of ​​the space.

13. The pants-type absorbent article according to claim 1 or 2, A pants-type absorbent article, wherein the one side waist portion is provided with an indication for indicating the position of the space.

14. The pants-type absorbent article according to claim 1 or 2, The one-side waist portion is a back-side waist portion, The back waist portion is provided below the sheet portion with an elastic member that is elastic in the left-right direction.

15. The pants-type absorbent article according to claim 1 or 2, The one-side waist portion is a back-side waist portion, The back waist portion includes an upper elastic member and a lower elastic member that are elastic in the left-right direction, The upper elastic member is adjacent to the lower end of the sheet portion from above, The lower elastic member is adjacent to the lower end of the sheet portion from below, A pants-type absorbent article, characterized in that a force for stretching said lower elastic member by a unit length is greater than a force for stretching said upper elastic member by a unit length.

16. The pants-type absorbent article according to claim 1 or 2, The one-side waist portion is a back-side waist portion, The back waist portion includes an upper first elastic member, an upper second elastic member, a lower first elastic member, and a lower second elastic member that are elastic in the left-right direction, The upper first elastic member is adjacent to the lower end of the sheet portion from above, The upper second elastic member is adjacent to the upper first elastic member from above, The lower first elastic member is adjacent to the lower end of the sheet portion from below, The lower second elastic member is adjacent to the lower first elastic member from below, A pants-type absorbent article, characterized in that the distance between the lower first elastic member and the lower second elastic member is shorter than the distance between the upper first elastic member and the upper second elastic member.

17. The pants-type absorbent article according to claim 1 or 2, a lower end portion of the sheet portion has a non-adhesive portion between the lower end portion and the waist-circulating sheet portion, where the lower end portion and the waist-circulating sheet portion are not adhered to each other; A pants-type absorbent article, wherein the non-adhesive portion is continuous with the space.

18. The pants-type absorbent article according to claim 1 or 2, a non-adhesive portion between the sheet portion and the waist-circulating sheet portion, where the sheet portion and the waist-circulating sheet portion are not adhered to each other; A pants-type absorbent article characterized in that the non-adhesive portion has a portion that continues from the end joint portion on one side in the left-right direction to the end joint portion on the other side in the left-right direction between the first position and the second position in the up-down direction.

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