JP2019198591A - Underpants type absorbent article - Google Patents

Abstract

To provide an underpants type absorbent article easily suppressing leakage of excreta at an abdominal side and a back side.SOLUTION: An underpants type absorbent article (1) has a vertical direction, a left and right direction, and a backward and forward direction crossing each other, and comprises an absorber (11) and a pair of leakage preventing wall parts (50) provided at both sides in the left and right direction of the absorber (11) and capable of being erected at a skin side. A first erection starting point (57is) to be a starting point where the leakage preventing wall parts (50) are erected in a first position at a front side at least than a center in the backward and forward direction is positioned in the inside in the left and right direction than a second erection starting point (55is) to be a point where the leakage preventing wall parts (50) are erected in a second position at a rear side in the backward and forward direction than the first position.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a pants-type absorbent article.

  A pants-type disposable diaper is known as a pants-type absorbent article. In Patent Document 1, an absorbent main body is bridged between a front body exterior body (front belt portion) and a back body exterior body (rear belt portion), and both side edges in the width direction of the front body exterior body and the back body exterior body. A pants-type disposable diaper is disclosed in which the two are joined to each other to form a waist circumference opening and a leg circumference opening. The absorbent main body is provided with a pair of three-dimensional gathers (leak barriers) that stand on the skin side of the wearer along both widthwise end portions, and urine leaks from the leg opening by the three-dimensional gathers. Can be prevented.

JP2013-138895A

  When the person who wears the pants-type disposable diaper is an infant, since the body is small, if the standing height of the leak-proof wall is too high, a large gap is easily formed between the body and the diaper. In this case, excreted urine and the like are hardly absorbed by the absorbent main body, and urine is likely to leak on the ventral side (front side). On the other hand, if the standing height of the leak-proof wall is lowered, the feces excreted and adhered to the surface of the absorbent main body may overflow outside the diaper on the back side (rear side).

  The present invention has been made in view of the conventional problems as described above, and the purpose thereof is a pant-type absorbability that easily suppresses leakage of excrement on the front side (ventral side) and the rear side (back side). To provide an article.

A main invention for achieving the above object has an up-down direction, a left-right direction, and a front-rear direction intersecting each other, and is provided on both sides of the absorbent body and the left-right direction of the absorbent body, and can stand on the skin side. A pant-type absorbent article having a pair of leak-proof wall portions, wherein at least a first standing start point at which the leak-proof wall portion stands at a first position in front of the center in the front-rear direction is The second position on the rear side in the front-rear direction with respect to the first position is located on the inner side in the left-right direction with respect to the second standing start point that is the starting point from which the leakage prevention wall portion stands. A pant-type absorbent article.
Other features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

  ADVANTAGE OF THE INVENTION According to this invention, the underpants type absorbent article which can suppress the leakage of excrement easily in the front side (abdominal side) and the back side (back side) can be provided.

It is a schematic perspective view of the underpants type disposable diaper 1 (diaper 1). It is a top view of the diaper 1 of the expansion | deployment and expansion | extension state. It is the top view and sectional drawing explaining the absorptive main body 10 and the leak-proof wall part 50 structure. FIG. 5 is a schematic plan view for explaining the relationship between the arrangement of joining regions 55, 56, and 57 and the standable height of the leakage preventing wall 50. It is the schematic sectional drawing represented about the AA cross section of FIG. It is the schematic sectional drawing represented about the BB cross section of FIG. It is the schematic sectional drawing represented about CC cross section of FIG. 8A and 8B are diagrams illustrating a state when the waist opening BH of the diaper 1 is expanded in the front-rear direction (and the left-right direction) and the inside of the diaper 1 is viewed from above. 9A to 9C are diagrams illustrating a first modification of the leak-proof wall portion 50. FIG. It is a schematic plan view explaining the joining area | region of a 3rd modification.

At least the following matters will become apparent from the description of the present specification and the accompanying drawings.
Pants having an up-down direction, a left-right direction, and a front-rear direction intersecting each other, and an absorbent body and a pair of leak-proof wall portions that are provided on both sides of the left-right direction of the absorbent body and can stand on the skin side 1st standing start point which becomes a starting point from which said leak-proof wall part stands up at least in the 1st position ahead of the center of said front-and-back direction is a type absorptive article. A pant-type absorbent article, characterized in that, at the second position on the rear side, it is located on the inner side in the left-right direction with respect to the second rising start point from which the leakage preventing wall portion starts.

  According to such a pants-type absorbent article, it is possible to store stool between the absorbent main body and the wearer's body by raising the leak-proof wall portion at the rear second position. A wide space can be provided to suppress stool leakage. In addition, by suppressing the standing height of the leak-proof wall at the first position on the front side, it is easy to suppress side leakage of urine, and it is easy to absorb urine by reducing the gap between the absorbent main body and the body. can do. Thereby, the underpants type absorbent article which is easy to suppress the leakage of excrement on the front side (abdominal side) and the rear side (back side) can be realized.

  This pant-type absorbent article has an absorbent main body provided with the absorber, and the leak-proof wall portion is provided at the outer end portion in the left-right direction along the up-down direction. A second joining region that is provided on the inner side of the first joining region in the left-right direction and that fixes the leak-proof wall portion so that it cannot stand up. And at least between the lower end of the second bonding region provided at the front upper end of the absorbent main body in the vertical direction and the lower end of the absorbent main body, and in the left-right direction, the first bonding region And a third bonding region provided between the second bonding region and the second bonding region, the pant-type absorbent article being bonded to the absorbent main body.

  According to such a pants-type absorbent article, the standing height of the leak-proof wall portion starting from the third joint region is lower than the standing height of the leak-proof wall portion starting from the first joint region. can do. Therefore, by appropriately providing each joining region, it is possible to more efficiently suppress excretion leakage on the front side (abdominal side) and the rear side (back side).

  In this pant-type absorbent article, it is desirable that the first position is a position overlapping the third joining region in the up-down direction.

  According to such a pants-type absorbent article, the region where the standing height of the leak-proof wall portion is lowered is adjusted by changing the arrangement and length in the vertical direction (front-rear direction) of the third joint region. Can do. Thereby, the absorptive article which has a leak-proof wall part which is easy to fit according to the size of a wear subject's body, etc. is realizable.

  This pant-type absorbent article has a front belt portion and a rear belt portion, and the lower end of the third joining region is below the lower end of the rear belt portion in the vertical direction. It is desirable to be located.

  According to such a pants-type absorbent article, when the leakage preventing wall portion is erected in the region below the rear belt portion, the maximum erected height is increased with the first joining region as the erection starting point. The portion and the portion where the maximum standable height is lowered with the third junction region as the starting point can be formed. Thereby, the leakage of excrement can be suppressed effectively.

  In such a pant-type absorbent article, it is desirable that the lower end of the third joining region is located in front of the lower end of the absorbent main body in the front-rear direction.

  According to such a pants-type absorbent article, it is possible to increase a region where the leak-proof wall portion stands high with the first joint region as a starting point when the pants-type absorbent article is worn. Thereby, the space which can store a stool becomes wide and it becomes easier to suppress that a stool leaks in a rear side area | region.

  This pant-type absorbent article has a front belt portion and a rear belt portion, and the upper end of the third joining region is located above the lower end of the front belt portion in the vertical direction. It is desirable.

  According to such a pants-type absorbent article, the leak-proof wall portion is erected on the skin side with the third joining region as a starting point over a wide range of the region where the tightening force around the waist by the front belt portion is not acting. Can be made. Thereby, lateral leakage of urine and the like can be effectively suppressed in the front region of the pant-type absorbent article.

  In such a pants-type absorbent article, the upper end of the third joining region is positioned above the lower end of the second joining region arranged at the front upper end of the absorbent main body in the vertical direction. It is desirable.

  According to such a pants-type absorbent article, on the ventral side (front side) of the pants-type absorbent article, between the lower end of the front second joint region and the lower end of the third joint region, While preventing the standing height from becoming too high, it is possible to erect the leak-proof wall portion in a wider range. Therefore, urine lateral leakage and the like can be more effectively suppressed.

  In this pant-type absorbent article, the upper end of the third joining region is below the upper end of the second joining region disposed at the front upper end of the absorbent main body in the up-down direction. It is desirable to be located.

  According to such a pants-type absorbent article, it is possible to reduce the area of the third joint region provided so as to overlap the front second joint region in the vertical direction. Even if the area of the overlapping region is reduced, there is no effect on the function of adjusting the standing height of the leak-proof wall, and therefore the leak-proof wall can be reduced by reducing the amount of the adhesive forming the third joint region. The cost can be reduced without impairing the function of the part, and the touch of the pant-type absorbent article can be improved.

  Such a pant-type absorbent article, wherein the absorbent main body has a liquid absorbent absorbent core, and the absorbent core is disposed between the longitudinal ends of the absorbent core in the left-right direction. It is preferable that the upper end of the third joining region is located above the constricted portion of the absorbent core in the vertical direction.

  According to such a pants-type absorbent article, it is possible to reduce the distance in the left-right direction between the absorbent core having high rigidity and the third joint region as compared with other parts. Thereby, it becomes difficult to produce distortion and a deformation | transformation in a 3rd junction area | region, and it can stand up stably from this 3rd junction area | region as a starting point.

  In this pant-type absorbent article, it is desirable that the length of the third bonding region in the vertical direction is longer than the length of the second bonding region.

  According to such a pant-type absorbent article, the range in which the leakage preventing wall portion can stand up in the vertical direction is widened, and the height at which the leakage preventing wall portion can stand up is suppressed from the third joint region as the starting point. Can be made as wide as possible. Thereby, while making it easy to suppress the leakage of excrement, the fitting property at the time of wear can be improved.

  In such a pant-type absorbent article, the absorbent main body has a liquid-absorbent absorbent core, and in the left-right direction, the outer end portion of the leak-proof wall sheet constituting the leak-proof wall portion is It is desirable that the third joint region is disposed outside the absorbent core, and the third joint region is provided between the absorbent core and the first joint region.

  According to such a pants-type absorbent article, the third joint region is disposed between the absorbent core and the first joint region in the left-right direction, so that urine or the like is absorbed by the third joint region. The movement from the sex core to the outside in the left-right direction (side flap side) is suppressed. Therefore, it is difficult for urine or the like to ooze out to the side flap, and it is possible to make the wearer less likely to feel discomfort.

  In such a pant-type absorbent article, the absorbent main body has a liquid-absorbent absorbent core, and in the left-right direction, the outer end of the leak-proof wall sheet constituting the leak-proof wall portion is at least A part of the third bonding region is disposed on the non-skin side more than the absorbent core, and at least a part of the third bonding region is disposed on the skin side of the absorbent core. Is desirable.

  According to such a pants-type absorbent article, the left and right end portions of the absorbent core are covered with the leak-proof wall portion, so that the urine and the like are separated from the absorbent core by the leak-proof wall in the left-right direction (side The movement to the flap side) is suppressed. Therefore, it is difficult for urine or the like to ooze out to the side flap, and it is possible to make the wearer less likely to feel discomfort.

  In such a pant-type absorbent article, the lower end in the up-down direction and the left-right direction of the second joining region disposed at the front upper end of the absorbent main body in a state where the absorbent main body is extended. In the front-rear direction, an absorptive point is an intersection of a straight line connecting the inner end of the third joint region and the lower end of the third joint region in the up-down direction and the inner end in the left-right direction, and the first joint region. It is desirable that it is located behind the lower end of the main body.

  According to such a pants-type absorbent article, the portion (region) where the leak-proof wall is the highest height that can actually stand without being affected by the second joint region and the third joint region, It becomes the rear side in the front-rear direction. That is, the standing height of the leakage preventing wall portion is suppressed on the front side, and the standing height of the leakage preventing wall portion is increased on the rear side. Thereby, it is possible to easily suppress leakage of excrement on the front side (abdominal side) and the rear side (back side).

  Such a pants-type absorbent article has a front belt portion and a rear belt portion, and is arranged at the front upper end portion of the absorbent main body in a state where the absorbent main body is extended. A straight line connecting and extending the lower end in the up-down direction of the second joining region and the inner end in the left-right direction and the lower end of the third joining region in the up-down direction and the inner end in the left-right direction; It is desirable that the intersection with one joining region is located below the lower end of the rear belt portion in the vertical direction.

  According to such a pants-type absorbent article, in the vertical direction, there is a high possibility that the leak-proof wall stands up the highest between the lower end of the absorbent main body and the lower end of the rear belt portion. Thereby, it becomes possible to make the leak-proof wall stand upright in the vicinity of the wearer's excretion opening (anus), and it is possible to make the excrement (stool) more difficult to leak.

  In such an underpants-type absorbent article, the length of the second joining region arranged at the front upper end portion of the absorbent main body is arranged at the rear upper end portion of the absorbent main body in the vertical direction. It is desirable that the length is shorter than the length of the second bonding region.

  According to such a pants-type absorbent article, in the vertical direction, the length of the front second joining region is shortened, and the lower end position is shifted upward, so that the position where the leakage prevention wall stands up most is lowered. Easy to shift to the side. As a result, when the pants-type absorbent article is worn, the wearer's legs are less likely to be caught by the leak-proof wall, and the wearer's legs are worn while suppressing leakage of excrement on the front side (abdominal side) and rear side (back side). An easy pant-type absorbent article can be realized.

  In such a pant-type absorbent article, the third joint region is arranged at the front third joint region disposed at the front upper end portion of the absorbent main body and at the rear upper end portion of the absorbent main body. And the upper end of the front third bonding region extends to the front upper end of the absorbent main body, and the upper end of the rear third bonding region is the absorption side. It is desirable to extend to the rear upper end of the sex body.

  According to such a pants-type absorbent article, the front side third joint region and the rear side third joint region close the gap in the left-right direction between the first joint region and the second joint region, and Since the upper end of the absorbent main body and the leak-proof wall portion are joined, excrement passes through the gap between the first joint region and the second joint region, and leaks outward from the upper end of the absorbent main body. This can be suppressed.

=== Embodiment ===
A pants-type disposable diaper for infants will be described as an example of the pants-type absorbent article according to the present embodiment. However, the pants-type absorbent article is not limited to disposable diapers for infants, but can be used as disposable diapers for adults, sanitary shorts, and the like.

<Configuration of pants-type disposable diaper 1>
FIG. 1 is a schematic perspective view of a pants-type disposable diaper 1 (hereinafter simply referred to as “diaper 1”). FIG. 2 is a plan view of the diaper 1 in the unfolded and extended state. FIG. 3 is a plan view and a cross-sectional view illustrating the configuration of the absorbent main body 10 and the leak-proof wall portion 50.

  The diaper 1 has an up-down direction, a left-right direction, and a front-rear direction that intersect each other in the pant-type state shown in FIG. 1, and a waistline opening BH and a pair of leg-hole openings LH are formed. In the vertical direction, the waistline opening BH side is the upper side, and the crotch side is the lower side. Moreover, as shown in sectional drawing of FIG. 3, the direction where the material which comprises the diaper 1 was laminated | stacked is called thickness direction, and the side which contacts a wearer's body (skin) in thickness direction is called skin side. The side that does not contact the wearer's body (skin) is referred to as the non-skin side.

  In addition, the “extended state” of the diaper 1 refers to the entire diaper 1 (the entire product) by extending each elastic member (for example, the leg elastic member 17 and the thread-like elastic members 23 and 33 described later) included in the diaper 1. ), And the dimensions of each member constituting the diaper 1 (for example, the absorbent main body 10 and the belt portions 30 and 40, which will be described later) coincide with the dimensions of the single member or It means a state where it has been extended to a size close to that.

  The diaper 1 includes an absorbent main body 10, a front belt portion 20, and a rear belt portion 30 that are three members having a rectangular shape in plan view. The front belt portion 20 (abdominal waistline) is applied to the wearer's abdomen, and the rear belt portion 30 (dorsal waistline) is applied to the wearer's back.

  In the diaper 1 in the unfolded state shown in FIG. 2, the front belt part 20 and the rear belt part 30 are arranged so that their longitudinal directions are along the left-right direction of the diaper 1. And the edge part of the longitudinal direction one side (front side) of the absorptive main body 10 is arrange | positioned in the center part of the front side belt part 20 in the left-right direction, and the absorptive main body 10 is located in the center part of the rear side belt part 30 in the left-right direction. An end portion on the other side (rear side) in the longitudinal direction is arranged.

  In the unfolded diaper 1 shown in FIG. 2, the absorbent main body 10 is folded in half at a predetermined position FL in the longitudinal direction so that the longitudinal direction of the absorbent main body 10 is along the vertical direction of the diaper 1. And the rear belt portion 30 are joined at both ends in the left-right direction using a joining means such as heat welding or ultrasonic welding, so that a pair of joining regions 2 is formed. Thereby, the diaper 1 will be in the pants-type state (refer FIG. 1) which has the trunk periphery opening part BH and a pair of leg periphery opening part LH.

  As shown in FIG. 3, the absorbent main body 10 is disposed on the non-skin side of the absorbent body 11, the liquid-permeable top sheet 12 disposed on the skin side of the absorbent body 11, and the absorbent body 11. And a back sheet 13 that forms an exterior of the absorbent main body 10. Moreover, a pair of leak-proof wall part 50 is provided in the both sides of the left-right direction of the absorber 11. FIG.

  The absorber 11 has an absorbent core 11A that absorbs and holds excretory fluid such as urine, and a liquid-permeable core wrap sheet 11B that covers the absorbent core 11A. Examples of the absorbent core 11A include those in which liquid absorbent fibers such as pulp containing a super absorbent polymer (SAP) are formed into a predetermined shape. On the other hand, examples of the core wrap sheet 11B include tissue paper.

  The absorbent core 11A of the present embodiment has a constricted portion 11AC having a reduced length in the left-right direction (width direction) between the front end and the rear end in the longitudinal direction. The constricted portion 11AC is a portion that is sandwiched between both legs of the wearer when the diaper 1 is worn, and the absorbent core 11A is worn by the length of the portion in the left-right direction being short (the width is narrow). It will be easier to fit the person's crotch.

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

  The back sheet 13 is a sheet-like member that covers the absorbent body 11 from the non-skin side, and is a planar member that is larger in size than the absorbent body 11. The back sheet 13 is a sheet member having a two-layer structure including, for example, a liquid-impermeable back film 13a such as polyethylene or polypropylene and an exterior sheet 13b such as a nonwoven fabric provided on the non-skin side of the back film 13a. .

  The exterior sheet 13b has an extending portion 13bf that greatly extends outward from the ends 11es, 11es on both sides of the absorbent body 11 in the left-right direction. The extending portion 13bf is folded back to the skin side in the thickness direction and the inner side in the left-right direction with the ends 10es, 10es on both sides in the left-right direction of the absorbent main body 10 being folded back, and is overlapped in the thickness direction. SF is formed. In the side flap SF, between the exterior sheets 13bf, 13bf folded in the thickness direction, a plurality of leg-hole elastic members 17, 17,. It is fixed at a predetermined interval. Thereby, the elasticity along the up-down direction (longitudinal direction of the absorptive main body 10) is provided with respect to the side flap SF. Then, the plurality of leg-hole elastic members 17, 17 are arranged side by side in the lateral direction, so that the side flap SF is left and right while maintaining a plane from both sides in the left-right direction of the absorbent main body 10 as shown in FIG. It becomes a shape that protrudes outward in the direction. Therefore, when the diaper 1 is worn, the side flap SF is easily fitted on the surface along the leg of the wearer, and it is easy to suppress excrement and the like from leaking from the leg opening LH.

  The leak-proof wall portion 50 is formed of a flexible sheet member such as a nonwoven fabric, and is provided on both sides of the absorbent body 11 in the left-right direction and on the skin side in the thickness direction. When the diaper 1 is worn, the leakage preventing wall portion 50 stands on the skin side of the wearer from both sides of the absorbent body 11 in the left-right direction, thereby suppressing excrement from leaking to the outside of the absorbent main body 10. . Details of the leak-proof wall 50 will be described later.

  The front belt portion 20 and the rear belt portion 30 include inner layer sheets 21 and 31, outer layer sheets 22 and 32 laminated on the inner layer sheets 21 and 31, and a plurality of thread-like elastic members 23 and 33, respectively.

  The outer layer sheets 22 and 32 are arranged on the non-skin side with respect to the inner layer sheets 21 and 31. The inner layer sheets 21 and 31 and the outer layer sheets 22 and 32 are disposed on the non-skin side with respect to the absorbent main body 10. The inner layer sheets 21 and 31 and the outer layer sheets 22 and 32 alone are non-stretchable sheets that substantially do not have the left-right stretchability of the diaper 1. As the inner layer sheets 21 and 31, and the outer layer sheets 22 and 32, SMS nonwoven fabric (spunbond / meltblown / spunbond nonwoven fabric), spunbond nonwoven fabric, air-through nonwoven fabric, plastic sheet, perforated plastic sheet and laminate sheet thereof are used. Can do.

  The plurality of thread-like elastic members 23 and 33 are arranged side by side in the vertical direction between the inner layer sheets 21 and 31 and the outer layer sheets 22 and 32 and are fixed in a state of extending in the left-right direction. Therefore, the front belt part 20 and the rear belt part 30 expand and contract in the left-right direction, and fit around the wearer's waist. Examples of the thread-like elastic members 23 and 33 include thread-like elastic members such as rubber and spandex.

  In the rear belt portion 30 of the present embodiment, the thread-like elastic member 33 is disposed from the upper end portion to the lower end portion. On the other hand, the thread-like elastic member 23 is not disposed at the upper end portion of the front belt portion 20, but instead, an elastic sheet 24 that expands and contracts in the left-right direction is disposed. Thus, by arranging the elastic sheet 24 without arranging the thread-like elastic member 23 on the upper end portion of the front belt portion 20, the upper end portion of the front belt portion 20 is in close contact with the body (skin) of the wearer. It becomes easy to do. Thereby, local clamping | tightening is suppressed and the trace of an expansion-contraction member can be made hard to remain on a wearer's skin. In particular, since an infant assumed as a person who wears the diaper 1 generally has a body shape in which the abdomen protrudes, the local tightening of the abdomen by the front belt part 20 is suppressed as in this embodiment. This makes it difficult to cause discomfort during wearing.

<Leakage barrier 50>
Then, the detail of a structure and function of the leak-proof wall part 50 is demonstrated. The leak-proof wall portion 50 includes a leak-proof wall sheet 51 and a plurality of leak-proof wall elastic members 52. The leak-proof wall sheet 51 is a rectangular sheet member having flexibility, and is made of, for example, a nonwoven fabric or the like. The leak-proof wall sheet 51 of the present embodiment is provided along the vertical direction (longitudinal direction of the absorbent main body 10) at both ends in the left-right direction of the absorbent main body 10, and as shown in FIG. The inner end 50is is folded outward in the left-right direction. A plurality of leak-proof wall elastic members 52, 52, etc., such as rubber thread, are predetermined between the leak-proof wall sheets 51, 51 stacked in the thickness direction. The interval is fixed. Thereby, the stretchability along the up-and-down direction (longitudinal direction) is given to leak-proof wall part 50, and when wearing diaper 1, the right-and-left direction of leak-proof wall part 50 is based on the stretchability. The inner end (inner end 50is) stands on the wearer's skin side.

  The leak-proof wall portion 50 is absorbed by the first joining region 55, the second joining region 56, and the third joining region 57 formed by a joining material such as a hot melt adhesive, as indicated by the hatched portion in FIG. The main body 10 is joined.

  The first joining region 55 is a belt-like region provided along the vertical direction (longitudinal direction of the absorbent main body 10) at the lateral end of the leakage preventing wall 50 in the left-right direction. It is joined to the skin side surface of the side flap SF. When the diaper 1 is worn, at least a part of the leakproof wall portion 50 in the left-right direction inner side than the first bonding region 55 has a thickness direction starting from the left-right inner end of the first bonding region 55. Stand on the skin side. That is, the first joining region 55 is a region that serves as a rising start point of the leak-proof wall portion 50.

  The second joint region 56 is provided at the front and rear upper ends of the absorbent main body 10 and on the inner side of the first joint region 55 in the left-right direction. It is joined to the skin side surface of the top sheet 12). In the following description, the second bonding region 56 provided at the front upper end portion of the absorbent main body 10 is the front second bonding region 56f, and the second bonding region 56 provided at the rear upper end portion of the absorbent main body 10 is the rear. Also referred to as a side second bonding region 56b. The leak-proof wall portion 50 is fixed so that it cannot stand up in the region by joining both ends in the longitudinal direction by the second joining regions 56f and 56b. That is, the leak-proof wall part 50 can stand in the area | region between the longitudinal direction of the front 2nd junction area 56f and the rear 2nd junction area 56b.

  The third joining region 57 includes at least the lower end (rear end in the front-rear direction) 56fed of the front second joining region 56f and the lower end of the absorbent main body 10 (the absorbent main body 10 is folded in the longitudinal direction) in the vertical direction. Between the first joint region 55 and the second joint region 56 in the left-right direction. Since the third bonding region 57 is provided on the inner side of the first bonding region 55 in the left-right direction, the rising start point of the leak-proof wall portion 50 is not the first bonding region 55 but the third bonding region 57 in this region. It becomes. That is, in the region where the third joint region 57 is provided in the vertical direction (longitudinal direction), the height at which the leakage preventing wall portion 50 can stand is lower than the region where the third joint region 57 is not provided. (See FIGS. 6 and 7 to be described later).

  FIG. 4 is a schematic plan view for explaining the relationship between the arrangement of the joining regions 55, 56, and 57 and the standable height of the leakage preventing wall 50. FIG. 5 is a schematic cross-sectional view showing the AA cross section of FIG. 6 is a schematic cross-sectional view showing the BB cross section of FIG. FIG. 7 is a schematic cross-sectional view showing the CC cross section of FIG. FIG. 4 shows a state in which the diaper 1 is expanded and extended as in FIG.

  First, in the region where the second joining region 56 (56f, 56d) is formed in the vertical direction (longitudinal direction of the absorbent main body 10), as shown in FIG. Since the end (inner end 50 is) is joined to the absorbent main body 10, the leak-proof wall 50 cannot stand up.

  Next, at a certain position (referred to as a first position) in a region where the third bonding region 57 is provided at least in front of the center in the front-rear direction, as shown in FIG. The inner end 50is of the leak-proof wall portion 50 stands on the skin side with the inner end 57is of 57 as the first rising start point. At this time, the maximum height at which the leakage preventing wall 50 can stand is defined as a first standing height H57. The first standing height H57 is represented by the distance from the first standing start point to the standing tip of the leakage preventing wall 50. That is, the first standing height H57 is a distance between the inner end 57is of the third joining region 57 and the inner end 50is of the leakage preventing wall 50 in the left-right direction of FIG.

  Then, the third bonding region 57 is not provided on the rear side in the front-rear direction from the first position, and at a certain position (referred to as the second position) in the region where the first bonding region 55 is provided, As shown in FIG. 7, the inner end 50 is of the leak-proof wall portion 50 stands on the skin side with the inner end 55 is of the first joining region 55 as the second rising start point. At this time, the maximum height at which the leak-proof wall 50 can stand is defined as a second standing height H55. The second standing height H55 is represented by the distance from the second standing start point to the standing tip of the leakage preventing wall 50. That is, the second standing height H55 is a distance between the inner end 55is of the first joining region 55 and the inner end 50is of the leakage preventing wall 50 in the left-right direction of FIG.

  As is clear from FIG. 4, the first rising start point is located on the inner side in the left-right direction than the position of the second rising start point. Therefore, in the left-right direction, the distance between the inner end 57is of the third joining region 57 and the inner end 50is of the leakage preventing wall 50 is equal to the inner end 55is of the first joining region 55 and the inner end of the leakage preventing wall 50. It becomes shorter than the distance between 50is. Thereby, in the diaper 1, the height at which the leakage preventing wall portion 50 can stand at the first position on the front side in the front-rear direction (the first standing height H57) is set to the leakage preventing wall at the second position on the rear side from the first position. It can be made lower than the standable height (second standing height H57) of the portion 50.

  8A and 8B are diagrams illustrating a state when the waist opening BH of the diaper 1 is expanded in the front-rear direction (and the left-right direction) and the inside of the diaper 1 is viewed from above. In FIG. 8A, a state is shown in which the user puts his hand from below the pair of leg opening LH and widens the waist opening BH in the front-rear direction and the left-right direction with respect to the diaper 1 in the natural state. ing. FIG. 8B shows a state where the user puts both hands from the upper side of the waistline opening BH and widens the waistline opening BH in the front-rear direction and the left-right direction with respect to the diaper 1 in the natural state. The “natural state” of the diaper 1 is a state when the diaper 1 is left for a predetermined time. For example, with respect to the diaper 1 having a pant-type shape, the belt portions 20 and 30 are pulled outward in the left-right direction, and the belt portions 20 and 30 and the absorbent main body 10 are set in an “extended state”, and this extended state is continued for 15 seconds. After that, release the diaper 1 and place it on a flat surface such as a desk. And the state which passed for 5 minutes by such plane flat placing is a natural state.

  When the diaper 1 is worn, if the waistline opening BH is expanded from front to back and right and left from the natural state, the leak-proof wall elastic member 52 expands, and the contraction force by the leak-proof wall elastic member 52 causes the leak-proof wall portion 50 to Acts on the inner end 50is. Then, the leak-proof wall part 50 stands on the wearer's skin side, and the inner end 50is of the leak-proof wall part 50 easily comes into contact with the wearer's skin (such as a buttocks). At this time, as shown in FIG. 8A and FIG. 8B, the standable height (H57) of the leakage preventing wall portion 50 is low on the front side in the front-rear direction of the diaper 1 and the leakage preventing wall portion 50 on the rear side in the front-rear direction. The standable height (H55) is increased. In other words, the portion (H55) where the leak-proof wall 50 is the highest and stands on the skin side is on the rear side in the front-rear direction.

Infants who are the main wearing subjects of the diaper 1 are often in a posture lying on their back, so when stool is excreted, the stool is not absorbed by the absorbent main body 10 and is rear side (back side). It is easy to collect in. Therefore, it is possible to store feces between the absorbent main body 10 and the infant's body inside the diaper 1 by raising the leak-proof wall 50 high in the rear region (second position) of the diaper 1. A large space (volume) can be provided to prevent stool from leaking outside the absorbent main body 10. On the other hand, since an infant has a small body, if the standing height of the leak-proof wall 50 is too high on the front side in the front-rear direction, the gap between the absorbent main body 10 and the body becomes large and urine is hardly absorbed. . Therefore, by suppressing the standing height of the leak-proof wall 50 in the front region (first position) of the diaper 1, the distance between the absorbent main body 10 and the body of the wearer (infant) is reduced, and urine is efficiently collected. Can be absorbed easily and urine can be prevented from leaking. Thereby, the underpants type diaper 1 which makes it easy to absorb urine on the abdominal side and suppresses leakage of feces on the back side can be realized. Further, by changing the arrangement and length of each joining region, it becomes possible to freely adjust the standing height of the leak-proof wall portion 50, and depending on the size and gender of the wearer's body, Fit can be improved.

  In addition, the actual standing height of the leak-proof wall part 50 changes with the position of an up-down direction (front-back direction). For example, in FIG. 4, the height at which the leakage preventing wall portion 50 can stand up in the region (first position) where the third joining region 57 becomes the rising start point (first rising start point) is actually the upper region in the vertical direction. It is conceivable that it becomes lower in the region above and lower in the lower region in the vertical direction. In the upper region in the vertical direction, the leakage preventing wall portion 50 is fixed so as to be unable to stand up by the front second joint region 56f (see FIG. 5). Therefore, the leakage prevention in the region is caused by the influence of the front second joint region 56f. The standing height of the wall portion 50 is lower than the first standing height H57 that is the maximum height at which the wall portion 50 can stand. On the other hand, in the lower region in the vertical direction, the leakage preventing wall portion 50 is less likely to be affected by the front second joining region 56f, so that the leakage preventing wall portion 50 can easily stand up to the first standing height H57 that is the maximum height at which it can stand up. That is, the actual standing height of the leak-proof wall part 50 becomes higher as it goes downward in the vertical direction.

  Similarly, in FIG. 4, the actual standable height of the leakage preventing wall portion 50 in the region (second position) where the first joining region 55 becomes the rising start point (second rising start point) is the upper side in the vertical direction. It is lower in the region close to the third junction region 57, and higher in the region farther from the third junction region 57 on the lower side in the vertical direction.

  Such fluctuations in the standing height of the leak-proof wall portion 50 can be explained as follows. That is, the point on the inner side in the left-right direction and the lower end in the up-down direction (point P in FIG. 4) of the front second joining region 56f and the point on the inner side in the left-right direction and the lower end in the up-down direction (point Q in FIG. 4). ) Is defined as SL (shown by a broken line in FIG. 4), the leak-proof wall portion 50 is more likely to stand in a region on the inner side in the left-right direction than the straight line SL. This is because the leak-proof wall portion 50 is hardly affected by the second joint region 56 and the third joint region 57 in the inner region in the left-right direction with respect to the straight line SL. Therefore, the distance H50X between the straight line SL in FIG. 4 and the inner end 50is of the leakage preventing wall 50 in the left-right direction can be considered as the actual standing height of the leakage preventing wall 50.

  The actual standing height H50X of the leak-proof wall 50 gradually increases from the upper side to the lower side in the vertical direction, and is the intersection of the straight line SL and the inner side end 55is in the left-right direction of the first joining region 55 (see FIG. 4 at point R). As is apparent from FIG. 4, the point R is located on the rear side in the front-rear direction (lower side than the center in the longitudinal direction of the absorbent main body 10) with respect to the lower end (FL) of the absorbent main body 10. Therefore, as described with reference to FIG. 8, it is clear that the portion where the leakage prevention wall portion 50 stands highest is the rear side in the front-rear direction. In addition, in the diaper 1, the part where the leak-proof wall 50 actually stands up the highest (the part that becomes the second standing height H57) is a region having a predetermined length in the vertical direction including the point R, At the point R, the leak-proof wall part 50 does not necessarily stand up locally.

  Further, the intersection R between the straight line SL and the left and right inner end 55is of the first joining region 55 is lower than the lower end 30ed of the rear belt portion 30 in the vertical direction (the lower end 30ed of the rear belt portion 30 in FIG. 4). (The front side in the longitudinal direction). Therefore, the leak-proof wall portion 50 stands up highest between the lower end position FL of the absorbent main body 10 and the lower end 30ed of the rear belt portion 30 in the vertical direction. Thereby, at the time of wearing of the diaper 1, it becomes possible to stand up the leak-proof wall part 50 most near a wearer's excretion opening | mouth (anus), and it becomes easy to hold | maintain excrement (stool).

  As shown in FIGS. 4 to 7, in the diaper 1, the outer end portion of the leak-proof wall portion 50 is disposed outside the absorbent core 11 </ b> A in the left-right direction, and side flaps are formed by the first joining region 55. It is joined to the skin side of SF. In such a configuration, for example, when urine that cannot be absorbed by the absorbent core 11A is excreted, the urine oozes out to the side flap SF, which may cause discomfort to the wearer. Therefore, in the present embodiment, the third joint region 57 is disposed outside the absorbent core 11A and inside the first joint region 55 (that is, between the absorbent core 11A and the first joint region 55) in the left-right direction. doing. Therefore, the urine and the like are prevented from moving from the absorbent core 11A to the side flap SF by the third joint region 57, and it is possible to make the wearer less likely to experience discomfort.

  Moreover, in the diaper 1 of this embodiment, the standing height of the leak-proof wall part 50 is controlled by adjusting suitably the range in which the 3rd junction area | region 57 and the 2nd junction area | region 56 are provided in an up-down direction. .

  As shown in FIG. 4, the lower end 57 ed of the third joining region 57 is located below the lower end 30 ed of the rear belt portion 30 in the vertical direction. Thereby, when the diaper 1 is worn, the leak-proof wall portion 50 easily stands on the skin side in the region where the tightening force around the waist by the rear belt portion 30 is not acting. That is, the leak-proof wall portion 50 can be raised in a predetermined region below the rear belt portion 30. The standing leakage preventing wall 50 has a portion where the maximum standable height H55 is increased with the first joining region 55 as a starting point, and a maximum standable height H57 is lowered with the third joining region 57 as a standing start point. The part which becomes is formed. Therefore, as described above, leakage of urine can be effectively suppressed on the front side in the front-rear direction, and fecal leakage can be effectively suppressed in the rear region.

  Furthermore, it is desirable that the lower end 57ed of the third bonding region 57 is located on the front side in the front-rear direction with respect to the lower end (FL) of the absorbent main body 10. In this way, the region where the maximum standable height of the leak-proof wall portion 50 becomes H55 with the first joining region 55 as the starting point becomes wide. That is, the area | region where the leak-proof wall part 50 stands up high at the time of wearing of the diaper 1 can be enlarged. Thereby, the space (volume) in which stool can be stored becomes wider, and it becomes easier to suppress leakage of stool to the outside of the absorbent main body 10.

  Further, the upper end 57eu of the third joining region 57 is located above the lower end 20ed of the front belt portion 20 in the vertical direction. As a result, on the ventral side (front side) of the diaper 1, the leak-proof wall portion 50 is formed with the third joining region 57 as a starting point over a wide range of the region where the tightening force around the waist by the front belt portion 20 is not acting. Can stand on the skin side. That is, it is possible to widen the range in which the leakage preventing wall portion 50 can be raised while limiting the standing height. Thereby, lateral leakage of urine and the like can be effectively suppressed on the front side of the diaper 1.

  In the vertical direction, the upper end 57eu of the third bonding region 57 is located above the lower end 56fed of the front second bonding region 56f. Thereby, between the lower end 56fed of the front side 2nd joining area | region 56f and the lower end 57ed of the 3rd joining area | region 57, the leak-proof wall part 50 can be stood up to the skin side by making the 3rd joining area | region 57 into a standing start point. The area can be maximized. That is, on the ventral side (front side) of the diaper 1, it is possible to erect the leak-proof wall portion 50 in a wider range while preventing the standing height of the leak-proof wall portion 50 from becoming too high, and the urine sideways. Leakage etc. can be controlled more effectively.

  Furthermore, the upper end 57eu of the third bonding region 57 is located below the upper end 56feu of the front second bonding region 56f in the vertical direction. In a region where the third joining region 57 and the front second joining region 56f overlap in the vertical direction, the leakage preventing wall portion 50 cannot stand up by the second joining region 56f (see FIG. 5). That is, in the overlapping region, the maximum standable height of the leakage preventing wall 50 is almost zero, and the third joining region 57 exhibits a function of adjusting the standing height of the leakage preventing wall 50. Absent. Therefore, by reducing the area of the third bonding region 57 provided overlapping the front second bonding region 56f in the vertical direction as much as possible, the amount of the adhesive forming the third bonding region 57 is reduced, and the third bonding is performed. The area 57 can reduce the area of the part where the touch of the absorbent main body 10 becomes hard. Thereby, it becomes possible to reduce cost, without impairing the function of the leak-proof wall part 50, and the touch of the diaper 1 can be made favorable.

  Further, in the vertical direction, the lower end 57ed of the third bonding region 57 is located above the constriction start position (point S in FIG. 4) of the constricted portion 11AC of the absorber 11 (absorbent core 11A). That is, the lower end 57ed of the third bonding region 57 is located above the constricted portion 11AC. By setting it as such a structure, the distance in the left-right direction of the 3rd junction area | region 57 and the absorptive core 11A can be shortened like FIG. The absorber 11 (absorbent core 11A) has higher rigidity than other parts (for example, the leak-proof wall portion 50) by laminating liquid absorbent materials such as liquid absorbent fibers. Therefore, when the distance between the third bonding region 57 and the absorbent core 11 </ b> A is short, distortion and deformation are less likely to occur in the third bonding region 57. Thereby, the leak-proof wall part 50 becomes easy to stand stably by making the 3rd junction area | region 57 into a standing start point.

  In the vertical direction, the length of the third bonding region 57 is longer than the length of the second bonding region 56. By shortening the length of the second joining region 56, the range in which the leak-proof wall portion 50 can stand up in the vertical direction can be widened. Then, by making the length of the third bonding region 57 longer than the length of the second bonding region 56, the height at which the leakage preventing wall portion 50 can stand up is suppressed from the third bonding region 57 as the starting point (FIG. 4, the range of H57 is made lower than H55) can be widened. Thereby, it becomes easy to suppress the leakage of excrement as the whole diaper 1. Moreover, since the standing height of the leak-proof wall part 50 is adjusted appropriately, the fitting property at the time of wear can be improved.

<Modified example of leak-proof wall part 50>
(First modification)
The leak-proof wall part 50 of the diaper 1 can also be modified as follows. 9A to 9C are diagrams illustrating a first modification of the leak-proof wall portion 50. FIG. FIGS. 9A to 9C are schematic cross-sectional views of the absorbent main body 10 in the first modification, and are diagrams illustrating states corresponding to FIGS. 5 to 7 respectively.

  The leak-proof wall part 50 of the first modified example is disposed on the lower side (non-skin side) of the absorbent body 11 with the outer end in the left-right direction of the leak-proof sheet 51 folded back inward in the left-right direction. And the 1st junction field 55 is provided between the thickness directions of absorber 11 and back sheet 13 (side flap SF). In addition, the arrangement | positioning in the up-down direction of the joining area | regions 55-57 is respectively the same as that of the above-mentioned embodiment (refer FIG. 3). Moreover, about the other structure of the diaper 1, it is the same as that of the above-mentioned embodiment.

  Even with such a configuration, it is possible to appropriately adjust the standing height of the leak-proof wall portion 50. First, in the region where the second joining region 56 is provided in the vertical direction, the leak-proof wall portion 50 is fixed so that it cannot stand up (see FIG. 9A). And in the front-back direction (up-down direction), the 2nd junction area | region 56 is not provided, but the leak-proof wall part 50 is the 3rd junction area | region 57 in the area | region (1st position) in which the 3rd junction area | region 57 is provided. Can be raised on the skin side as a standing start point (first standing start point) (see FIG. 9B). At this time, the leakage preventing wall 50 can stand up to the first standing height H57. And in the 2nd field behind the 1st field in the direction of order, leak-proof wall part 50 can stand up to the skin side along edge 11es of the both sides of absorber 11 in the horizontal direction. That is, the leak-proof wall part 50 can stand on the skin side by using the outer end 11es in the left-right direction of the absorbent body 11 as the rising start point (second rising start point) (see FIG. 9C). At this time, the leakage preventing wall 50 can stand up to the second standing height H55. Strictly speaking, the second standing start point of the leakage preventing wall 50 and the end 11es of the absorber 11 may be slightly misaligned in the left-right direction (see FIG. 9C). Shall not occur.

  And as FIG. 9A-FIG. 9C show, the 3rd junction area | region 57 which is a 1st standing start point of the leak-proof wall part 50 is located inside the end 11es of the absorber 11 which is a 2nd standing start point. . As a result, the height at which the leakage preventing wall 50 can stand at the first position on the front side in the front-rear direction (the first standing height H57) of the leakage preventing wall 50 at the second position on the rear side of the first position. It becomes lower than the standable height (second standing height H55). Therefore, also in the first modified example, it is possible to easily absorb urine on the abdominal side and to suppress leakage of feces on the back side.

  Moreover, in the first modification, the outer end in the left-right direction of the leak-proof sheet 51 is wound closer to the non-skin side than the absorbent core 11A, and at least a part of the outer end is in the left-right direction. It is arrange | positioned in the position which overlaps with 11A (refer FIG. 9A-FIG. 9C). And in the skin side rather than the absorbent core 11A, in the left-right direction, a part of the 3rd junction area | region 57 is arrange | positioned in the position which overlaps with the absorbent core 11A (refer FIG. 9A). That is, both sides of the absorbent core 11 </ b> A in the left-right direction are covered by the leak-proof wall portion 50. With such a configuration, for example, urine or the like is suppressed from moving from the absorbent core 11A to the side flap SF even if urine is excreted to such an extent that the absorbent core 11A cannot absorb it. Therefore, the side flap SF is difficult to get wet, and it is possible to make the wearer less likely to feel discomfort.

(Second modification)
As a second modification, the length of the front second bonding region 56f may be shorter than the length of the rear second bonding region 56b in the vertical direction. For example, when the length of the front second joining region 56f is shortened in the vertical direction in FIG. 4 and the position of the lower end 56fed (point P in FIG. 4) is shifted upward (front side in the longitudinal direction), a straight line SL in the vertical direction. Is an acute angle, and the intersection (point R in FIG. 4) between the straight line SL and the left and right inner end 55is of the first joining region 55 is shifted downward in the vertical direction (rear in the longitudinal direction). That is, the position where the leak-proof wall portion 50 stands up most is the rear side.

  In this case, in the operation of causing the wearer (infant) to wear the diaper 1, when the wearer passes the leg through the leg opening LH, the wearer's leg is hardly caught by the standing leak-proof wall 50. Therefore, according to the second modification, the diaper 1 can be more easily worn. Thereby, the easy-to-wear diaper 1 can be realized while suppressing leakage of excrement on the front side (abdominal side) and the rear side (back side).

(Third Modification)
In the third modified example, the third joining region 57 is also provided on the rear upper end portion of the absorbent main body 10. FIG. 10 is a schematic plan view for explaining the joining region of the third modified example. In addition to the first joint region 55 and the second joint region 56, the leak-proof wall portion 50 of the third modified example includes a front third joint region 57 f disposed at the front upper end portion of the absorbent main body 10, and an absorbent main body. 10 is joined to the absorptive main body by a rear third joining region 57b arranged at the rear upper end portion.

  The front-side third joining region 57f is a joining region that has substantially the same configuration as the above-described third joining region 57 and serves as the first rising start point of the leak-proof wall portion 50. However, in the present modification, the upper end 57feu of the front third joint region 57f extends to the front upper end 10ef of the absorbent main body 10.

  The rear third bonding region 57b is disposed at the same position as the front third bonding region 57f in the left-right direction. Further, in the vertical direction, the upper end 57beu of the rear third bonding region 57b extends to the rear upper end 10eb of the absorbent main body 10, and the lower end 57bed of the rear third bonding region 57b is the rear second bonding region 56b. It is located above the lower end 56bed. As described above, in the region where the rear second joint region 56b is formed, the leak-proof wall portion 50 is fixed so as not to stand up, and thus overlaps with the rear second joint region 56b in the vertical direction. The rear third joint region 57b does not serve as an upright base portion of the leak-proof wall portion 50. That is, the rear third joining region 57b does not affect the standing operation of the leak-proof wall portion 50.

  On the other hand, in the third modification, the third joint regions 57a and 57b are provided up to the upper end of the absorbent main body 10 in the vertical direction, so that leakage of urine and the like is easily suppressed. For example, in the example of FIG. 3, no gap is formed between the first bonding region 55 and the second bonding region 56 in the left-right direction at the rear upper end of the absorbent main body 10 and no gap is formed. Therefore, there is a possibility that excrement may leak outside the absorbent main body 10 through the gap. In particular, since an infant who is a wearing target often takes a posture of lying on his / her back, excrement easily passes through the back upper end of the absorbent main body 10 and leaks to the outside. On the other hand, in the third modification, the gap between the first bonding region 55 and the second bonding region 56 is closed by the third bonding regions 56f and 57b, and the upper end 10ef of the absorbent main body 10 is filled. , 10eb are joined. Therefore, it becomes easy to suppress excrement from leaking outside from the upper end of the absorbent main body through the gap.

=== Other Embodiments ===
As mentioned above, although embodiment of this invention was described, said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. Further, the present invention can be changed or improved without departing from the gist thereof, and needless to say, the present invention includes equivalents thereof.

  In the above-described embodiment, the stretchable sheet 24 is disposed at the upper end portion of the front belt portion 20, but the configuration is not limited thereto. For example, the stretchable sheet 24 may be disposed at any position of the front belt portion 20 in the vertical direction. Further, the rear belt portion 30 may have a stretchable sheet, the front belt portion 20 may not have a stretchable sheet, and both the front belt portion 20 and the rear belt portion 30 may have the stretchable sheet 24. You may have. Further, neither the front belt portion 20 nor the rear belt portion 30 may be provided with the stretchable sheet 24, or an elastic member such as thread rubber corresponding to the thread-like elastic members 23, 24 instead of the stretchable sheet 24. May be provided.

  In the above embodiment, the front belt part 20 and the rear belt part 30 are separated and illustrated as a separate member. However, a crotch part is provided between the front belt part 20 and the rear belt part 30. The front belt part 20 and the rear belt part 30 may be one continuous member.

1 diaper (pants-type absorbent article), 2 bonding area,
10 Absorbent body, 10es end (left-right direction),
10ef front upper edge, 10eb rear upper edge,
11 Absorber, 11es end (left-right direction),
11A absorbent core, 11AC constriction, 11B core wrap sheet,
12 Top sheet, 13 Back sheet,
13a back film, 13b exterior sheet, 13bf extension part,
17 leg elastic member,
20 Front belt part (ventral side waist part), 30ed lower end,
21 inner layer sheet, 22 outer layer sheet, 23 thread-like elastic member, 24 elastic sheet,
30 rear belt part (back side waistline part), 30ed lower end,
31 inner layer sheet, 32 outer layer sheet, 33 thread-like elastic member,
50 leak-proof wall, 50is inner edge, 51os outer edge,
51 leak-proof wall sheet, 52 leak-proof wall elastic member,
55 1st joining area | region, 55is inner side edge (2nd standing origin),
56 second joining region,
56f front second joining region, 56feu upper end, 56fed lower end,
56b second rear joining region,
57 third joining region, 57is inner end (first rising origin), 57eu upper end,
57ed bottom,
57f front third joining region, 57feu upper end,
57b rear third joint region, 57be upper end, 57bed lower end,
BH waistline opening,
LH leg opening,
FL predetermined position,
SF side flaps,
H50X height, H55 height (second standing height), H57 height (first standing height)

Claims (16)

Having a vertical direction, a horizontal direction and a front-rear direction intersecting each other;
An absorbent body, a pair of leak-proof walls provided on both sides of the absorbent body in the left-right direction, and capable of standing on the skin side;
A pant-type absorbent article having
At least in the first position on the front side of the center in the front-rear direction, the first standing start point, which is the starting point from which the leakage preventing wall portion stands,
The second position on the rear side in the front-rear direction with respect to the first position is located on the inner side in the left-right direction with respect to a second rising start point that is a starting point from which the leakage prevention wall portion stands. A pants-type absorbent article. The pant-type absorbent article according to claim 1,
Having an absorbent body with the absorbent body;
The leakage barrier is
A first joining region provided along the vertical direction at the outer end in the horizontal direction;
A front upper end portion and a rear upper end portion of the absorbent main body, and a second joint region that is provided inside the first joint region in the left-right direction, and that fixes the leak-proof wall portion so that it cannot stand upright;
At least between the lower end of the second joining region provided at the front upper end of the absorbent main body in the up-down direction and the lower end of the absorbent main body, and in the left-right direction, the first joining region and the A third bonding region provided between the second bonding region;
A pant-type absorbent article characterized by being joined to the absorbent main body. The pant-type absorbent article according to claim 2,
The said 1st position is a position which overlaps with the said 3rd joining area | region in the said up-down direction, The underpants type absorbent article characterized by the above-mentioned. The pant-type absorbent article according to claim 2 or 3,
A front belt portion and a rear belt portion;
A pant-type absorbent article, wherein a lower end of the third joining region is positioned below a lower end of the rear belt portion in the up-down direction. The pant-type absorbent article according to claim 4,
The underpants type absorbent article, wherein a lower end of the third joining region is located in front of a lower end of the absorbent main body in the front-rear direction. The pant-type absorbent article according to any one of claims 2 to 5,
A front belt portion and a rear belt portion;
A pant-type absorbent article, wherein an upper end of the third joining region is positioned above a lower end of the front belt portion in the vertical direction. The pant-type absorbent article according to any one of claims 2 to 6,
In the up-down direction, the upper end of the third joint region is located above the lower end of the second joint region disposed at the front upper end portion of the absorbent main body. Mold absorbent article. The pant-type absorbent article according to claim 7,
In the up-down direction, an upper end of the third bonding region is located below an upper end of the second bonding region disposed at the front upper end portion of the absorbent main body. Pants-type absorbent article. The pant-type absorbent article according to any one of claims 2 to 8,
The absorbent body has a liquid absorbent absorbent core;
The absorbent core has a constricted portion whose length in the left-right direction is shortened between both ends in the longitudinal direction of the absorbent core,
A pant-type absorbent article, wherein an upper end of the third joining region is located above the constricted portion of the absorbent core in the up-down direction. The pant-type absorbent article according to any one of claims 2 to 9,
In the up-down direction, the length of the third joint region is longer than the length of the second joint region. The pant-type absorbent article according to any one of claims 2 to 10,
The absorbent body has a liquid absorbent absorbent core;
In the left-right direction,
The outer end portion of the leak-proof wall sheet constituting the leak-proof wall portion is disposed outside the absorbent core,
The pants-type absorbent article, wherein the third joint region is provided between the absorbent core and the first joint region. The pant-type absorbent article according to any one of claims 2 to 10,
The absorbent body has a liquid absorbent absorbent core;
In the left-right direction,
At least a part of the outer end of the leak-proof wall sheet constituting the leak-proof wall portion is disposed on the non-skin side more than the absorbent core,
The pants-type absorbent article, wherein at least a part of the third joining region is disposed on the skin side with respect to the absorbent core. The pant-type absorbent article according to any one of claims 2 to 12,
In a state where the absorbent main body is extended, a lower end in the up-down direction and an inner end in the left-right direction of the second joint area disposed at the front upper end portion of the absorbent main body, and the third joint area The intersection of the straight line connecting the lower end in the up and down direction and the inner end in the left and right direction and the first joining region,
A pant-type absorbent article, characterized in that, in the front-rear direction, the pants-type absorbent article is located on the rear side of the lower end of the absorbent main body. The pant-type absorbent article according to any one of claims 2 to 13,
A front belt portion and a rear belt portion;
In a state where the absorbent main body is extended, a lower end in the up-down direction and an inner end in the left-right direction of the second joint area disposed at the front upper end portion of the absorbent main body, and the third joint area The intersection of the straight line connecting the lower end in the up and down direction and the inner end in the left and right direction and the first joining region,
A pant-type absorbent article, characterized in that it is located below the lower end of the rear belt portion in the vertical direction. The pant-type absorbent article according to any one of claims 2 to 14,
In the up-down direction, the length of the second bonding region disposed at the front upper end portion of the absorbent main body is the length of the second bonding region disposed at the rear upper end portion of the absorbent main body. A pants-type absorbent article characterized by being shorter than the length. The pant-type absorbent article according to any one of claims 2 to 15,
The third bonding region has a front third bonding region disposed at a front upper end portion of the absorbent main body, and a rear third bonding region disposed at a rear upper end portion of the absorbent main body,
In the vertical direction,
The upper end of the front third joining region extends to the front upper end of the absorbent main body,
The upper end of the rear third joining region extends to the rear upper end of the absorbent main body,
A pant-type absorbent article characterized by the above.

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