WO2019131070A1

WO2019131070A1 - Pants-type absorbent article

Info

Publication number: WO2019131070A1
Application number: PCT/JP2018/045160
Authority: WO
Inventors: 傑田中; 貴仁永井
Original assignee: ユニ・チャーム株式会社
Priority date: 2017-12-28
Filing date: 2018-12-07
Publication date: 2019-07-04
Also published as: JP7080050B2; CN111526846A; CN111526846B; JP2019118566A

Abstract

A pants-type absorbent article (1), wherein an absorber body (10) has elastic members (41) that stretch and contract in the vertical direction along opposite sides in the left-right direction, and intermittent fixing portions (53) for affixing leakproof wall portions (40) to a skin side sheet (12) are provided at positions spaced apart in the vertical direction from a front end affixing portion (51) and a rear end affixing portion (52) which affix the leakproof wall portions (40) on upper ends on the front side and the rear side such that the leakproof wall portions (40) cannot stand upright. The leakproof wall portions (40) each have a leading end region (402) more toward the leading end of the leakproof wall portion (40) than the inner ends of the intermittent fixing portions (53) in the left-right direction, and the elastic members (41) are arranged only in the leading end regions (402).

Description

Pants-type absorbent article

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

A pant-type disposable diaper is known as a pant-type absorbent article. Patent Document 1 discloses a pants-type disposable diaper including an outer sheet member, an absorbent main body joined to the skin surface side of the outer sheet member, and side sheets extending from both widthwise end portions of the absorbent main body. It is done. In the diaper of Patent Document 1, the elastic members for standing up (38, 39) are attached in a stretched state over substantially the entire length of the side sheet in the longitudinal direction of the absorbent main body.

Unexamined-Japanese-Patent No. 2010-94334

Moreover, in the diaper of Patent Document 1, the adhesive layer is formed such that the rising width of the side sheet rising due to the contraction of the elastic member for rising is uniform from one longitudinal end to the other longitudinal end of the side sheet. ing. The adhesive layer is formed between the folded side sheets and between the side sheets and the top sheet. In the diaper of patent document 1, the elastic member for standing up is provided also in the site | part to which the rigidity of a side sheet becomes high with this contact bonding layer. In this case, the contraction force of the standing elastic member is inhibited by the adhesive layer. As a result, the diaper can not be in close contact with the wearer, and there is a risk that excrement will leak.

The present invention has been made in view of the above-described conventional problems, and an object thereof is a pants-type absorbent article capable of effectively utilizing the contraction force of an elastic member to suppress leakage of excrement. It is to provide.

The main invention for achieving the above object has an absorbent core which has vertical directions, horizontal directions and front-rear directions which cross each other, and which is arranged along the vertical directions and which is more worn than the absorbent core. An absorbent main body comprising a skin-side sheet disposed on the skin side and a pair of leak-barrier walls, and being bent forward and backward at the lower end in the vertical direction, and the absorbent main body on the front side in the front-rear direction A pant-type absorbent article comprising: a ventral waist portion joined to an upper end; and a back waist portion joined to the upper end of the absorbent main body on the rear side in the front-rear direction, The main body includes elastic members that extend and contract in the vertical direction at both side portions in the left and right direction, and the pair of leak preventing wall portions can rise to the skin side by the elastic members, and the absorbent main body At the upper end of the front side A front end fixing portion which can not stand up and a rear end fixing portion which can fix the leakproof wall at the upper end of the rear side, and the front end fixing portion and the rear end A portion fixing portion and an intermittent fixing portion fixing the leakproof wall portion to the skin side sheet at a position spaced apart in the vertical direction, the leakproof wall portion being the intermittent portion in the left-right direction A root region of the root side of the leakproof wall portion from the inner end of the fixed portion, and a tip region of the tip side of the leakproof wall portion relative to the root region, the elastic member is only in the tip region It is a pants type absorbent article characterized by being arranged.
Other features of the present invention will be apparent from the description of the present specification and the accompanying drawings.

ADVANTAGE OF THE INVENTION According to this invention, the pant-type absorbent article which can utilize the contraction force of an elastic member effectively, and can suppress the leak of excretion can be provided.

FIG. 1 is a front view of a shorts-type disposable diaper 1; It is a schematic plan view of diaper 1 in the unfolded and stretched state. It is a schematic sectional drawing in the II line of FIG. It is the schematic sectional drawing which cut the diaper 1 of a pants type state in the front-back direction. It is a figure explaining the leak-proof wall part 40. FIG. It is a figure explaining the leak-proof wall part 40. FIG. 7A is a schematic cross-sectional view taken along line II in FIG. 5, FIG. 7B is a schematic cross-sectional view taken along line II-II in FIG. 5, and FIG. 7C is a schematic cross-section taken along line III-III in FIG. FIG. 8A and 8B are schematic cross-sectional views of the leakproof wall 40 in a worn state.

At least the following matters will be made clear by the present specification and the description of the accompanying drawings.
Moreover, it has an up-down direction, the left-right direction, and the front-back direction which mutually cross | intersect, and the skin side sheet | seat arrange | positioned rather than the said absorption core by the absorptive core arrange | positioned along the said up-down direction And a pair of leak-barrier wall portions, and an abdominal side waistline joined to an absorbent main body bent back and forth at the lower end in the vertical direction and an upper end of the absorbent main body on the front side in the front and rear direction A pant-type absorbent article having a portion and a back waistline portion joined to an upper end portion of the absorbent main body on the rear side in the front-rear direction, the absorbent main body being both side portions in the left-right direction The elastic members extend and contract in the vertical direction, and the pair of leak preventing wall portions can be erected on the skin side by the elastic members, and the absorbent main body is at the upper end portion on the front side. Front end fixing for fixing the leak preventing wall portion so as not to stand up And, at the upper end on the rear side, an interval in the vertical direction between the rear end fixing portion for fixing the leakage preventing wall portion so as not to stand upright, the front end fixing portion and the rear end fixing portion And the intermittent fixing portion fixing the leakage preventing wall portion to the skin side sheet at the opened position, the leakage preventing wall portion is the leakage preventing wall from an inner end of the intermittent fixing portion in the left and right direction. A pants having a root region on the root side of a portion and a tip region on the tip side of the leakproof wall portion with respect to the root region, and the elastic member is disposed only in the tip region. It is a type | mold absorbent article.

According to such a pants-type absorbent article, the portion of the absorbent core on which the intermittent fixing portion is located is unlikely to sag, and the fit for the wearer can be maintained even after excretion. Therefore, even when excretion is repeated, leakage of excrement can be suppressed. Moreover, the contraction force of an elastic member is not inhibited by an intermittent fixing part, a leak-barrier wall part can be closely stuck to a wearer, and the leak of excrement can be suppressed.

In the pants-type absorbent article, the interval between the front end fixing portion and the intermittent fixing portion, and the intermittent fixing portion compared to the length of the portion of the intermittent fixing portion where the leakage preventing wall portion can stand up. It is a pants-type absorbent article characterized in that a length of a portion of the leakage preventing wall portion which can rise up between the fixing portion and the rear end fixing portion is longer.

According to such a pants-type absorbent article, the leak-barrier can be firmly erected before and after the intermittent fixing part, a suitable space for containing excrement can be secured, and the leakage of excrement is suppressed it can.

In the pants-type absorbent article, when the pants-type absorbent article is developed and extended in the vertical direction, the upper and lower sides of the leakproof wall between the front end fixing portion and the intermittent fixing portion In the pants-type absorbent article, the length in the vertical direction of the leakproof wall between the intermittent fixing portion and the rear end fixing portion is longer than the length in the direction. is there.

According to such a pants-type absorbent article, a space in which the leak-barrier can be firmly erected can be provided long on the back side, can accommodate the wearer's buttocks and stools, and can suppress back leakage.

In the pants-type absorbent article, in the state in which the pants-type absorbent article is developed and extended in the vertical direction, the vertical center of the intermittent fixing portion is the vertical direction of the pants-type absorbent article. It is arrange | positioned rather than the center of the said ventral-side waist part side, It is a pants type absorbent article characterized by the above-mentioned.

According to such a pants-type absorbent article, the vertical length of the leakproof wall between the intermittent fixing portion and the rear end fixing portion can be increased. In addition, the intermittent fixing portion is positioned corresponding to the discharge port contact position in the absorbent core, and it is possible to suppress drooping of the portion of the absorbent core that most absorbs excrete fluid and becomes heavy.

In the pants-type absorbent article, the rear end in comparison with the length in the vertical direction of the front end fixing portion in a state where the pants-type absorbent article is developed and extended in the vertical direction. It is a pants-type absorbent article characterized in that the length in the vertical direction of the fixing portion is shorter.

According to such a pants-type absorbent article, the vertical length of the leakproof wall between the intermittent fixing portion and the rear end fixing portion can be increased.

In the pants-type absorbent article, the absorbent core has a narrow portion with a narrower width in the left-right direction than the end at a central portion in the longitudinal direction, and at least one of the intermittent fixing portions The part is a pants-type absorbent article characterized in that the part is disposed in line with the narrow part in the left-right direction and outside the narrow part.

According to such a pant-type absorbent article, the leakage preventing wall portion and the intermittent fixing portion do not cover the absorbing surface of the absorbent core, the absorbing ability of the narrow portion can be maintained, and the excretory fluid leaks. It can be suppressed.

In the pants-type absorbent article, the tip end region has a joint portion in which at least a part of surfaces facing each other are joined on the inner side in the left-right direction with respect to the tip of the leakage preventing wall portion. It is a pants-type absorbent article characterized by the above.

According to such a pants-type absorbent article, the fold of the leakproof wall is maintained by the joint, the leakproof wall can be in surface contact with the wearer, and leakage of excrement can be suppressed.

The pants-type absorbent article is a pants-type absorbent article characterized in that the length in the lateral direction of the joint portion is shorter than the length in the lateral direction of the intermittent fixing portion.

In such a pants-type absorbent article, the number of the elastic members disposed in the joint portion is smaller than the number of the elastic members not disposed in the joint portion. It is an article.

According to such a pants-type absorbent article, since there are few elastic members whose contraction force is inhibited by the joint portion, the leakproof wall portion can be firmly adhered to the wearer, and the leakage of excrement is suppressed. it can.

In the pants-type absorbent article, in a state in which the pants-type absorbent article is developed and extended in the vertical direction, the bonding portion is disposed closer to the ventral-side waist portion than the intermittent fixing portion. It is a pants-type absorbent article characterized by having 1 junction part and the 2nd junction part arrange | positioned rather than the said intermittent fixing part at the said back side waist part side.

According to such a pants-type absorbent article, the space that accommodates excrement on the front side of the intermittent fixing portion can be sealed by the first joint portion, and the space that accommodates excrement on the rear side of the intermittent fixing portion Can be sealed at the second joint, and leakage of excrement can be suppressed.

In the pants-type absorbent article, in a state in which the pants-type absorbent article is developed and stretched in the vertical direction, the length in the vertical direction of the second bonding portion is the length in the vertical direction of the first bonding portion. It is a pants-type absorbent article characterized by being longer than the length of the direction.

According to such a pants-type absorbent article, the leakproof wall can be firmly in surface contact with the buttocks of the wearer by the rear long second joint, and the back leakage of the excrement can be suppressed.

In the pants-type absorbent article, in a state in which the pants-type absorbent article is developed and extended in the vertical direction, the first bonding portion and the second bonding portion are the upper and lower portions of the pants-type absorbent article. It is arrange | positioned in the position which does not overlap with the center of direction, It is a pants type absorbent article characterized by the above-mentioned.

According to such a pant-type absorbent article, it is possible to prevent the first joint portion and the second joint portion from being folded in half and forming a crease during molding into a pant-type. Therefore, a junction part can carry out field contact to a wearer and can control leak of excrement.

=== Embodiments ===
Hereinafter, as a pants type absorbent article according to the present invention, an embodiment will be described by taking a pants type disposable diaper for adults as an example. However, the pants-type absorbent article according to the present invention can also be used as a pants-type disposable diaper for infants, a cathodic short, and the like.

=== Configuration of pants type disposable diaper 1 ===
FIG. 1 is a front view of a shorts-type disposable diaper 1 (hereinafter referred to as "diaper"). FIG. 2 is a schematic plan view of the diaper 1 in the unfolded and stretched state. FIG. 3 is a schematic cross-sectional view taken along line II of FIG. FIG. 4 is a schematic cross-sectional view of the diaper 1 in the pants-type state, cut in the front-rear direction.

The diaper 1 has the vertical direction, the horizontal direction, and the front-rear direction which intersect with each other in the pants-type state of FIG. 1, and the waist opening BH and the pair of leg openings LH are formed. The upper side in the vertical direction corresponds to the waist opening BH side, and the lower side corresponds to the crotch side. Further, the front side in the front-rear direction corresponds to the ventral side of the wearer, and the rear side corresponds to the dorsal side of the wearer. Moreover, as shown in FIG. 3, the direction where the material which comprises the diapar 1 was laminated | stacked is called thickness direction. The side in contact with the wearer in the thickness direction is the skin side, and the opposite side is the non-skin side.

The diaper 1 has an absorbent main body 10, a ventral waist portion 20, and a back waist portion 30. In the diaper 1 in the pants-type state, the absorbent main body 10 (the absorbent core 11 described later) is disposed along the vertical direction, and is bent back and forth at the lower end portion in the vertical direction. The belly-side waist portion 20 is joined from the non-skin side to the upper end portion of the front-side absorbent main body 10 in the front-rear direction, and the upper end of the back-side absorbent main body 10 in the front-rear direction is the back side from the non-skin side The waist portion 30 is joined.

In the diaper 1 in the unfolded state of FIG. 2, the ventral waistline portion 20 and the back waistline portion 30 are arranged such that their longitudinal directions are along the left-right direction of the diaper 1. The end of one side in the longitudinal direction of the absorbent main body 10 is disposed at the center of the ventral-side waist portion 20 in the left-right direction, and the end of the absorbent body 10 is disposed at the center of the back-side waist portion 30 in the left-right direction. The other longitudinal end is arranged. From the unfolded state of FIG. 2, the absorbent main body 10 is folded in two at the approximate center in the longitudinal direction, and both sides of the ventral waistline 20 in the lateral direction and both sides of the dorsal waistline 30 in the lateral direction are welded The diaper 1 is in a pants-type state by being joined with each other.

The absorptive main body 10 is provided with the side elastic member 41 (elastic member of this invention) which expands-contracts in the longitudinal direction (up-down direction of the diapar 1) in the both sides of the left-right direction. Moreover, the absorbent main body 10 is provided with a pair of leak-proof wall parts 40 along the longitudinal direction on both side parts in the left-right direction. The leak preventing wall portion 40 can be erected on the skin side by the side elastic member 41 (details will be described later).

In addition, the absorbent main body 10 has an absorbent core 11 for absorbing waste fluid, a liquid-permeable skin-side sheet 12 disposed closer to the wearer's skin than the absorbent core 11, and an absorbent core 11. It has a liquid impermeable non-skin sheet 13 disposed on the non-skin side and a sheet member 14. The skin-side sheet 12 has both sides in the left-right direction folded back to the non-skin side so as to entrap the absorbent core 11. The sheet member 14 is disposed closer to the non-skin side than the non-skin side sheet 13 and forms the leak-proof wall portion 40 on the skin side relative to the skin side sheet 12.

The absorbent core 11 is a liquid absorbent fiber such as pulp fiber containing a highly absorbent polymer (so-called SAP), which is formed into a predetermined shape. The absorbent core 11 of the present embodiment has a substantially hourglass shape in a plan view, but not limited to this, for example, it may be a rectangular shape in a plan view. In addition, the absorbent core 11 may be coated with a liquid permeable core wrap sheet 15.

The ventral waist portion 20 and the back waist portion 30 respectively include the

inner layer sheets

21 and 31, the

outer layer sheets

22 and 32 disposed on the non-skin side of the

inner layer sheets

21 and 31, waist

elastic members

23 and 33, and ,

Cover sheets

24, 34. The waist

elastic members

23 and 33 are arranged in the vertical direction between the

inner layer sheets

21 and 31 and the

outer layer sheets

22 and 32, and fixed in an extended state in the horizontal direction. Thus, the ventral waistline 20 and the back waistline 30 fit around the wearer's waist. Further, the

cover sheets

24 and 34 cover the upper end portion of the absorbent main body 10 from the skin side.

In the unfolded and extended state of FIG. 2, the ventral torso part 20 is rectangular in plan view. The dorsal side waist portion 30 has an overlapping portion 30A overlapping the ventral side waist portion 20 in the front-rear direction, and an extending portion 30B extending downward from the ventral waist portion 20. The overlapping portion 30A has a rectangular shape in a plan view, and the extending portion 30B has an inverted trapezoidal shape in a plan view. The extension 30B can cover the buttocks of the wearer. On the other hand, the ventral-side waist portion 20 is shorter in the vertical direction than the back-side waist portion 30 and does not extend to the crotch side. Therefore, the movement of the leg pulled up to the ventral side at the time of walking or the like is not inhibited, and it is easy to walk.

Further, an extension elastic member 35 is provided along the lower end of the extension 30B of the back waistline 30. Specifically, the extension elastic member 35 is disposed along the left-right direction between the pair of inclined portions 351 and the pair of inclined portions 351 which are disposed so as to be inclined inward in the left-right direction toward the lower side. And a straight portion 352. The extension elastic member 35 is fixed in a stretched state between the inner layer sheet 31 and the outer layer sheet 32 in the same manner as the waist elastic member 33. The extending portion elastic member 35 allows the extending portion 30B to be fitted to the buttocks of the wearer, thereby suppressing the curling of the extending portion 30B.

However, it is not limited to the above. For example, the ventral-side waist portion 20 may have the same planar shape as the back-side waist portion 30 and may include an elastic member similar to the extension elastic member 35 of the back-side waist portion 30. That is, the ventral-side waist portion 20 may be provided with an inclined elastic member which is inclined inward in the left-right direction toward the lower side at the lower end portion. Also, conversely, the back side waist portion 30 may be rectangular in the same plan view as the ventral side waist portion 20 and may not include the extension elastic member 35.

=== About leakproof wall 40 ===
5 and 6 are diagrams for explaining the leak preventing wall portion 40. FIG. FIG. 5 is a schematic plan view of the diaper 1 in the unfolded and stretched state. FIG. 6 is a schematic cross-sectional view of the leak-proof wall 40. 7A is a schematic cross-sectional view taken along line II in FIG. 5, FIG. 7B is a schematic cross-sectional view taken along line II-II in FIG. 5, and FIG. 7C is a schematic cross-section taken along line III-III in FIG. FIG. 8A and 8B are schematic cross-sectional views of the leakproof wall 40 in a worn state.

In the following description, in the state in which the diaper 1 is expanded and extended in the vertical direction, the joining of the ventral waistline portion 20 and the back waistline portion 30 is released, and the diaper 1 is in the longitudinal direction of the absorbent main body 10 (vertical direction) And the diaper 1 is stretched in the longitudinal direction (vertical direction) of the absorbent main body 10 without any strain. Specifically, the dimensions of the material (for example, the sheet member 14 or the like) constituting the diaper 1 are in a state of being elongated until the length of the material itself matches or approximates to the dimensions of the single member.

<< Configuration of Leakage Barrier 40>
The pair of leak preventing wall portions 40 provided in the absorbent main body 10 is formed by folding the sheet members 14 constituting the exterior of the absorbent main body 10, respectively. The following method can be illustrated as an example of the formation method of the leak-proof wall part 40. FIG.

First, in a state where the non-skin side sheet 13 is placed on the sheet member 14, both side portions in the left and right direction of the sheet member 14 are on the skin side and inside in the left and right direction with reference to the bending line f1 (see FIG. 6). It is bent. The side elastic members 41 are fixed in a stretched state in the longitudinal direction of the absorbent main body 10 between the two-layered sheet members 14. Next, both side portions in the left-right direction of the two-layered sheet member 14 are bent on the non-skin side and the inside in the left-right direction based on the bending line f2.

Finally, in a state where the absorbent core 11 and the skin side sheet 12 are placed on the non-skin side sheet 13, both side portions in the left and right direction of the sheet member 14 having four layers are skinned with the bending line f3 as a base point. It is bent to the side and the inside in the left and right direction. Thus, the portion of the sheet member 14 to which the side elastic member 41 is fixed is disposed closer to the skin side than the skin side sheet 12. And the leak-proof wall part 40 bent in the cross section substantially S shape is formed.

Leak-proof wall portion 40 is a portion between bending lines f2 and f3, which is disposed on the non-skin side of skin side 42, which is a portion between bending lines f1 and f2, and skin side 42. And "non-skin side 43". The skin side 42 is a portion bent outward in the left-right direction with respect to the non-skin side 43. Therefore, the lateral end 42 a of the skin side 42 in the left-right direction is the “tip 42 a of the leak-proof wall 40”.

In addition, the portion of the sheet member 14 located on the non-skin side of the absorbent core 11 is a back sheet 13 or the like by the adhesive 16 (see FIG. 6) up to the position of the lateral end 10 a of the absorbent main body 10. It is fixed. Therefore, it is the side end 10 a of the absorbent main body 10, and the position of the bending line f 3 is the root 43 a of the leakproof wall portion 40. That is, the lateral end 43a of the non-skin side 43 is the "root 43a of the leakproof wall 40".

Four side elastic members 41A are provided side by side in the left-right direction between the two-layer sheet members 14 constituting the skin side portion 42. The four side elastic members 41A are disposed close to the tip 42a of the leakproof wall 40. Two side elastic members 41 </ b> B are provided side by side in the left-right direction between the two-layer sheet members 14 constituting the non-skin side portion 52. The two side elastic members 41 </ b> B are disposed near the inner end 43 b in the left-right direction of the non-skin side 43.

In addition, as shown in FIG. 5, the absorbent main body 10 has a “front end fixing portion 51” that fixes the leakproof wall 40 so as not to stand up at the front upper end in the front-rear direction of the diaper 1; The rear end fixing portion 52 fixes the leakage preventing wall 40 so as not to stand up at the upper end portion thereof.

Specifically, as shown in FIG. 7A, the front end fixing portion 51 fixes the space between the skin side 42 and the non-skin side 43 of the leakproof wall 40 with an adhesive or the like. 511 "and" non-skin side fixing part 512 "which fixes between the non-skin side 43 of leakproof wall part 40 and skin side sheet 12 with adhesives etc. Although not shown, the rear end fixing portion 52 also has the same cross section as that of FIG. 7A, and has a skin side fixing portion and a non-skin side fixing portion.

Therefore, in the longitudinal direction of the absorbent main body 10, the portion of the sheet member 14 between the front end fixing portion 51 and the rear end fixing portion 52 is a portion where the leakage preventing wall portion 40 can be erected. Also, for example, when the wearer is in the sleeping position, even if the excrement fluid blocked by the leak preventing wall portion 40 flows back and forth, the excrement fluid is fixed by the front end fixing portion 51 and the rear end fixing portion 52 It can hold back and can control front leak and back leak.

Incidentally, the width (length in the left-right direction) of the erectable portion of the leakproof wall portion 40 of the present embodiment is not a small amount. Specifically, the width of the skin side 42 and the width of the non-skin side 43 are not very small and are longer than 5 mm. Therefore, if both longitudinal end portions of the leakproof wall portion 40 are not fixed so as to be unable to stand up, the erectable portion of the leakproof wall portion 40 contracts toward the center in the longitudinal direction, and the leakproof wall portion 40 Can not stand up. That is, by providing the front end fixing portion 51 and the rear end fixing portion 52, the leak preventing wall 40 can be beautifully erected over a wide range in the longitudinal direction of the absorbent main body 10, The leak wall 40 can be made to function.

In addition, the absorbent main body 10 fixes the leakproof wall portion 40 to the skin side sheet 12 at a position spaced apart from the front end portion fixing portion 51 and the rear end portion fixing portion 52 in the vertical direction. 53 ". That is, in a state where the diaper 1 is expanded and extended in the vertical direction (FIG. 5), the front end fixing part 51, the intermittent fixing part 53, and the rear end fixing part 52 In the longitudinal direction).

Specifically, as shown in FIG. 6, the intermittent fixing portion 53 fixes the non-skin side portion 43 of the leakproof wall portion 40 and the skin side sheet 12 with an adhesive or the like. The intermittent fixing portion 53 illustrated in FIG. 5 is configured by two fixing

portions

531 and 531 having a rectangular shape in plan view arranged in the left-right direction. However, the present invention is not limited to this. For example, the intermittent fixing portion 53 may be configured of one fixing portion, or a plurality of fixing portions may be arranged in the left-right direction or the up-down direction.

The intermittent fixing portion 53 is coated with an adhesive or the like and has high rigidity. Therefore, it is preferable that the intermittent fixing portion 53 be disposed inside the side end 10 a of the absorbent main body 10 in the left-right direction. By not positioning the high rigidity intermittent fixing portion 53 at the side end 10 a of the absorbent main body 10, it is possible to prevent the side end 10 a (edge) of the absorbent main body 10 from stimulating the inner thigh of the wearer.

Further, as shown in FIG. 6, in the leakproof wall 40, the area (the area up to the root 43a) of the leakproof wall 40 on the root 43a side from the position of the inner end 53a of the intermittent fixing part 53 in the left-right direction It is assumed that "the root area 401". Further, a region on the tip 42 a side of the leakproof wall 40 (a region up to the tip 42 a) than the root region 401 is referred to as a “tip region 402”.

As shown in FIG. 7C, at the tip region 402 of the leakproof wall portion 40, at least a part of mutually facing surfaces are joined inside the left and right direction of the tip 42a of the leakproof wall portion 40. Portion 54 "(the joint of the present invention). Specifically, the pinch joint portion 54 joins a part between the skin side 42 and the non-skin side 43 with an adhesive or the like. Further, as shown in FIG. 5, the pinch joint portion 54 is provided along the longitudinal direction of the absorbent main body 10.

The pinching joint portion 54 of the present embodiment is formed along an inner end 43 b (i.e., a bending line f 2) in the left-right direction of the non-skin side portion 43. However, the present invention is not limited to this, and the pinch joint portion 54 may be formed on the outer side in the left-right direction more than the inner end 43 b by being separated from the inner end 43 b in the left-right direction of the non-skin side portion 43.

The front end fixing portion 51, the rear end fixing portion 52, the intermittent fixing portion 53, and the pinch bonding portion 54 are formed by applying an adhesive, but the invention is not limited thereto. For example, you may form using crimping | compression-bonding means, such as embossing.

In particular, in the intermittent fixing portion 53, part of the adhesive forming the intermittent fixing portion 53 may be peeled off by the movement of the body of the wearer. Further, in the intermittent fixing portion 53, the leakage preventing wall portion 40 folded back to the inside in the left-right direction is fixed to the skin side sheet 12. Therefore, when a part of the adhesive forming the intermittent fixing portion 53 is peeled off, the adhesive is exposed on the skin side of the wearer, and the skin of the wearer is stimulated with the adhesive. Therefore, although the intermittent fixing portion 53 may be formed of an adhesive, it is preferable to form the intermittent fixing portion 53 by a pressure bonding means such as embossing.

<< About leakage control of excrement >>
Where the intermittent fixing portion 53 is not located, as shown in FIG. 3 described above, the length of the sheet that can be erected starting from the lateral end 11 a of the absorbent core 11 becomes the next length. That is, the length W1 in the left-right direction of the sheet (the skin side sheet 12, the non-skin side sheet 13, the sheet member 14) from the side end 11a of the absorbent core 11 to the side end 10a of the absorbent main body 10 The length W2 of the non-skin side 43 of the portion 40 and the length W3 of the skin side 42 of the leakproof wall 40 are the total length (W1 + W2 + W3). The sheet of this length (W1 + W2 + W3) is partially picked up by the intermittent fixing portion 53 as shown in FIG.

That is, the length of the sheet that can be erected from the side end 11 a in the left-right direction of the absorbent core 11 becomes shorter at the location where the intermittent fixing portion 53 is located than at the location where the intermittent fixing portion 53 is not located. Therefore, even if the absorbent core 11 absorbs waste fluid and becomes heavy while wearing the diaper 1, as shown in FIG. 8B, the portion of the absorbent core 11 at which the intermittent fixing portion 53 is located is unlikely to sag.

Therefore, even after excretion, the fit of the absorbent body 10 to the wearer can be maintained. Therefore, even when excretion is repeated, the excretory fluid can be absorbed by the absorbent core 11 that fits the wearer, and leakage of excrement can be suppressed.

Moreover, by suppressing the sagging of the absorbent core 11, the wearer does not feel discomfort even after excretion, and it becomes easy to walk and the like. Moreover, wearing of the diaper 1 becomes incomprehensible from an external appearance.

In addition, the absorbent main body 10 of the present embodiment includes the side elastic members 41 that extend and contract in the vertical direction at both side portions in the left and right direction. It is arranged only in. If the side elastic member 41 is disposed at the portion of the sheet member 14 fixed by the intermittent fixing portion 53, part of the contraction force of the side elastic member 41 is inhibited by the rigidity of the intermittent fixing portion 53. I will.

Therefore, as shown in FIG. 6, it is preferable that all the side elastic members 41 be positioned closer to the end 42 a of the leakproof wall 40 than the inner end 53 a of the intermittent fixing portion 53 in the left-right direction. By doing so, it is possible to prevent the contraction force of the side elastic member 41 from being disturbed by the intermittent fixing portion 53. Therefore, the leak-barrier wall 40 can be firmly stood up and the leak-barrier wall 40 can be closely attached to the wearer by effectively utilizing the contraction force of the side elastic member 41. Therefore, the leak of excrement can be suppressed.

In addition, while the drooping of the absorbent core 11 can be suppressed by the intermittent fixing portion 53, the length of the portion where the leakage preventing wall portion 40 can be erected becomes short at the portion where the intermittent fixing portion 53 is located. This is because a part of the sheet member 14 capable of standing up the leak preventing wall portion 40 is fixed to the skin side sheet 12. Therefore, it is preferable to provide the intermittent fixing portion 53 in a part of the longitudinal direction of the absorbent main body 10 without providing the intermittent fixing portion 53 in a wide range in the longitudinal direction of the absorbent main body 10.

By doing so, the length between the front end fixing portion 51 and the intermittent fixing portion 53, and the intermittent fixing portion 53 and the rear side, as compared with the length of the erectable portion of the leakproof wall portion 40 in the intermittent fixing portion 53. It is possible to increase the length of the portion where the leakage preventing wall 40 can rise between the end fixing portions 52.

Specifically, the length of the portion of the intermittent fixing portion 53 where the leakage preventing wall 40 can rise (see FIG. 7B) is from the inner end 53a of the intermittent fixing portion 53 to the inner end 43b of the non-skin side 43. The length W6 in the left-right direction and the length W3 in the left-right direction of the skin side portion 42 are the total length (W6 + W3).

On the other hand, where the intermittent fixing portion 53 and the pinch joint portion 54 are not located, the length of the portion where the leakage preventing wall portion 40 can stand is the non-skin side portion 43 and the skin side portion (see FIG. 3). It becomes the length (W2 + W3) which totaled each length of 42 left-right direction.
In addition, in the place where only the pinch joint portion 54 is located, the length of the erectable portion of the leak preventing wall portion 40 (see FIG. 7C) is the length of each of the non-skin side 43 and the skin side 42 in the left-right direction. The length (W2 + W3-W4) is obtained by subtracting the length in the left-right direction of the knob joint 54 from the total length of the stems.

Therefore, in a place where the intermittent fixing part 53 is not located (for example, FIG. 8A), an appropriate size is provided between the wearer's body and the absorbent main body 10 as compared with the place where the intermittent fixing part 53 is located (for example, FIG. 8B). Space 2 can be secured. The excrement can be accommodated in the space 2 and leakage of excrement can be suppressed. In addition, the male genitalia can be accommodated in the space 2 on the ventral side of the intermittent fixing portion 53, and the buttocks and the stool can be accommodated in the space 2 on the dorsal side of the intermittent fixing portion 53.

Further, in a state where the diaper 1 is expanded and extended in the vertical direction (FIG. 5), intermittent as compared with the vertical length L6 of the leakproof wall 40 between the front end fixing part 51 and the intermittent fixing part 53. The vertical length L7 of the leakproof wall 40 between the fixing portion 53 and the rear end fixing portion 52 may be increased (L6 <L7).

By doing so, it is possible to provide a long region on the back side where the intermittent fixing portion 53 is not positioned and the length of the portion where the leakage preventing wall portion 40 can rise is long. Therefore, the space 2 (refer FIG. 8A) which accommodates a wearer's buttocks and defecation can be fully ensured. Further, for example, when the wearer is in the sleeping position, the excrement fluid is likely to flow on the back side, but the leakproof wall portion 40 standing up firmly can block the excrement fluid flowing on the back side. Therefore, back leakage can be suppressed.

Therefore, in a state where the diaper 1 is expanded and extended in the vertical direction (FIG. 5), the vertical center CL2 of the intermittent fixing portion 53 is a belly side waistline portion than the product center CL1 which is the vertical center of the diaper 1 It is good to be arranged on the 20 side. That is, the intermittent fixing portion 53 may be disposed close to the ventral-side waist portion 20 side.

By doing so, the vertical length (L7) of the leakproof wall 40 between the intermittent fixing portion 53 and the rear end fixing portion 52 can be increased. Therefore, space 2 which accommodates a wearer's buttocks and defecation can be secured enough, and back leakage can be controlled.

Further, the urination position of the wearer is located on the front side (ventral side) of the crotch. Therefore, by positioning the intermittent fixing portion 53 closer to the ventral-side waist portion 20 side, the intermittent fixing portion 53 is positioned corresponding to the discharge opening contact position in the absorbent core 11. Therefore, the intermittent fixing portion 53 can suppress drooping of the portion of the absorbent core 11 that most absorbs excretory fluid and becomes heavy.

However, it is not limited to the above. For example, the center CL2 of the intermittent fixing portion 53 in the vertical direction may coincide with the product center CL1 of the diaper 1 in a state where the diaper 1 is expanded and extended in the vertical direction (FIG. 5). You may arrange | position at the back side waist part 30 side rather than the center CL1. Also in these cases, drooping of the portion of the absorbent main body 10 where the intermittent fixing portion 53 is located can be suppressed, and leakage of excrement can be suppressed.

Furthermore, in the present embodiment, in the state where the diaper 1 is expanded and extended in the vertical direction (FIG. 5), the upper and lower sides of the rear end fixing portion 52 are compared with the vertical length L8 of the front end fixing portion 51. The direction length L9 is shorter (L8> L9).

Further, as shown in FIG. 5, the absorbent core 11 of the present embodiment is substantially hourglass-shaped in plan view, and at the central portion in the longitudinal direction, the narrow portion 111 having a narrower width in the lateral direction than the end portion. Have. The narrow portion 111 can be fitted to the wearer's narrow crotch. However, in the narrow portion 111, the absorption capacity is reduced as the width is narrowed.

Therefore, in the diaper 1 in the pants type, at least a part of the intermittent fixing portion 53 is disposed in line with the narrow portion 111 of the absorbent core 11 in the left-right direction and outside the narrow portion 111. Is preferred. That is, in a state where the diaper 1 is expanded and extended in the vertical direction (FIG. 5), the narrow portion 111 of the absorbent core 11 and at least a part of the intermittent fixing portion 53 are in the vertical direction (the length of the absorbent main body 10 It is preferable that the intermittent fixing portion 53 be disposed so as to overlap in the direction) and outside the side end 11 a of the absorbent core 11 in the left-right direction.

By doing so, it is possible to prevent the skin side of the narrow portion 111 from being covered with the adhesive of the leak preventing wall portion 40 and the intermittent fixing portion 53. That is, a reduction in the absorption area of the narrow portion 111 can be prevented, and the absorption capability of the narrow portion 111 can be maintained. Therefore, it is possible to suppress the leakage of waste fluid.

Further, in the narrow portion 111 of the absorbent core 11, the sheet length W1 (see FIG. 6) from the side end 11a of the absorbent core 11 to the side end 10a of the absorbent main body 10 becomes long. That is, the length of the sheet which can be erected from the side end 11a of the absorbent core 11 is also long, and the narrow portion 111 after excretion is likely to sag. Therefore, by disposing the intermittent fixing portion 53 at a position corresponding to the narrow portion 111, the length of the sheet that can be erected from the side end of the narrow portion 111 can be shortened, and the drooping of the narrow portion 111 can be suppressed. Therefore, even after excretion, the fit of the narrow portion 111 to the wearer can be maintained, and leakage of excrement can be suppressed.

Moreover, the front end area | region 402 of the leak-proof wall part 40 has the pinch joint part 54, as shown to FIG. 7C. By the pinching joint 54, the folded shape of the leakproof wall 40 is maintained, that is, the bending at the bending line f2 is maintained. Therefore, in the wearing state of the diaper 1 (FIG. 8A), the non-skin side 43 stands upright on the wearer's side by the side elastic members 41B disposed on the non-skin side 43 of the leakproof wall 40 The side elastic member 41A disposed on the side 42 brings the skin side 42 into surface contact with the wearer.

In addition, the pinch joint portion 54 has high rigidity, and the pinch joint portion 54 particularly in the skin side portion 42 maintains its surface shape, and can be firmly in close contact with the wearer. On the other hand, the portion of the skin side portion 42 other than the pinching joint portion 54 has low rigidity, and can be in close contact with the wearer while forming a curved surface according to the unevenness of the wearer's body. Therefore, the degree of adhesion of the leakproof wall 40 to the wearer can be increased, and leakage of excrement can be suppressed.

However, in the pinch joint portion 54, a part of the sheet member 14 forming the leakproof wall portion 40 is pinched, so the length of the portion where the leakproof wall portion 40 can be erected becomes short. Therefore, the length W4 (see FIG. 5) in the left and right direction of the knob joint 54 is the total length of two fixing

portions

531 and 532 aligned in the left and right direction (see FIG. 6). (W4 <W5).

By doing so, compared with the length of the portion of the intermittent fixing portion 53 where the leakage preventing wall 40 can stand up, the length of the portion of the pinch joint 54 where the leakage preventing wall 40 can rise can be made longer. Therefore, at the location where the pinching joint portion 54 is located, the space 2 (see FIG. 8A) for containing the excrement can be sufficiently secured, and leakage of the excrement can be suppressed.

Further, the pinch joint portion 54 is provided in the tip end region 402 of the leakproof wall portion 40 in which the side elastic member 41 is disposed. Therefore, by shortening the length W4 in the left-right direction of the knob joint 54, the number of side elastic members 41 disposed in the knob joint 54 can be reduced.

More preferably, the number of side elastic members 41B disposed in the pinch joint 54 (two in the present embodiment) is the number of side elastic members 41 not disposed in the pinch joint 54 (this embodiment) Should be less than 4).

By doing so, it is possible to reduce the number of side elastic members 41 in which a part of the contraction force is inhibited by the rigidity of the pinch joint 54. Therefore, it is possible to make the leakproof wall 40 stand up firmly and to closely contact the leakproof wall 40 with the wearer by effectively utilizing the contraction force of the side elastic member 41. Therefore, the leak of excrement can be suppressed.

Moreover, in the state which expand | deployed and extended the diaper 1 to the up-down direction (FIG. 5), it is preferable that the pinch joining part 54 is arrange | positioned in the position which does not overlap the intermittent fixing part 53 to an up-down direction. By doing so, it is possible to prevent the length of the erectable portion of the leakproof wall portion 40 from being too short due to both the pinch joint portion 54 and the intermittent fixing portion 53. Therefore, the leak-barrier wall 40 can be appropriately erected over a wide range in the longitudinal direction of the absorbent main body 10, and leakage of excrement can be suppressed.

In the pinch joint portion 54 of the present embodiment, in the state where the diaper 1 is expanded and extended in the vertical direction, the pinch joint portion 54 is disposed on the ventral side waist portion 20 side with respect to the intermittent fixing portion 53 It has a portion 541 (the first joint of the present invention) and a back pinch joint 542 (the second joint of the present invention) disposed closer to the back waister 30 than the intermittent fixing portion 53.

Therefore, the space 2 (see FIG. 8A) for containing the excrement on the ventral side of the intermittent fixing portion 53 can be sealed by the pinching junction 541 on the ventral side, and leakage of excrement can be suppressed. Similarly, the space 2 for containing the excrement on the dorsal side of the intermittent fixing portion 53 can be sealed by the pinch joint portion 542 on the dorsal side, and leakage of excrement can be suppressed.

Furthermore, in a state where the diaper 1 is expanded and extended in the vertical direction (FIG. 5), the vertical length L3 of the back side pinch joint 542 is greater than the vertical length L2 of the belly side pinch joint 541 Is also preferably long (L3> L2).

By doing so, the back leakage prevention wall 40 can be firmly attached to the wearer by the long back pinch joint 542. For example, when the wearer is in the sleeping position, the excrement fluid is likely to flow to the back side, but the excretory fluid that has flowed to the back side is firmly blocked by the leakproof wall portion 40. Therefore, back leakage can be suppressed.

Further, in a state where the diaper 1 is expanded and extended in the vertical direction (FIG. 5), the pinching joint portion 541 on the ventral side and the pinching joint portion 542 on the back side are disposed at positions not overlapping the product center CL1 of the diaper 1 Is preferred.

By so doing, when forming the diaper 1 from the unfolded state (FIG. 2) into a pant-type, it is possible to prevent the knob joint 54 having high rigidity from being folded in half and having a fold. Therefore, the pick joint part 54 can be closely_contact | adhered by a surface along the longitudinal direction of the absorptive main body 10, and the leak of excretion can be suppressed.

<< About the improvement of the pullability of diaper 1 >>
As described above, the back waistline portion 30 (see FIG. 2) of the diaper 1 of the present embodiment has the extension portion 30B extending to the lower side than the ventral waistline portion 20, and the lower end of the extension portion 30B The extension elastic member 35 is provided. In the extension elastic member 35, the inclined portion 351 that inclines inward in the left-right direction toward the lower side has a length in the vertical direction. Therefore, when the diaper 1 is worn, when the user holds the

waist portion

20, 30 and pulls up the diaper 1, the absorbent main body 10 is easily pulled up by the expansion and contraction of the inclined portion 351 of the extension elastic member 35. .

On the other hand, the ventral-side waist portion 20 does not include the inclined elastic member which is inclined inward in the left-right direction toward the lower side at the lower end portion. In this case, the pullability of the ventral absorbent main body 10 is reduced compared to the pullability of the back absorbent main body 10.

However, in the absorbent main body 10 of the present embodiment, the intermittent fixing portion 53 having high rigidity is disposed close to the belly-side waist portion 20 side. Therefore, the pull-up force is likely to act on a portion where the length in the vertical direction is short between the rigid front end fixing portion 51 and the high rigidity intermittent fixing portion 53. Therefore, the portion of the side elastic member 41 between the front end fixing portion 51 and the intermittent fixing portion 53 is strongly extended, and the contraction force is also strong. Therefore, the portion of the absorbent main body 10 between the front end fixing portion 51 and the intermittent fixing portion 53 repeats the behavior of expansion and contraction and is easily pulled up. That is, the pullability of the absorbent main body 10 on the ventral side is improved.

Moreover, as shown to FIG. 7B, in the intermittent fixing | fixed part 53, the skin side sheet | seat 12 is being fixed to the leak-proof wall part 40. As shown in FIG. Therefore, the skin-side sheet 12 fixed to the leak-proof wall 40 together with the leak-proof wall 40 by the contraction of the side elastic member 41, and the absorbability fixed to the skin-side sheet 12 with an adhesive (not shown) The core 11 is also easily pulled up. In other words, at the location where the intermittent fixing portion 53 is located, the length of the sheet that can be erected from the side end 11 a in the left-right direction of the absorbent core 11 is also shortened. Therefore, at the time of pulling up the diaper 1, the portion of the absorbent core 11 at which the intermittent fixing portion 53 is located is unlikely to sag, and it is easy to pull up following the leakproof wall portion 40.

Further, the intermittent fixing portion 53 is disposed in line with the narrow portion 111 of the absorbent core 11 in the left-right direction, and is disposed outside the narrow portion 111. That is, as shown to FIG. 7B, the sheet | seat part of the absorptive main body 10 in which the absorptive core 11 is not located is fixed to the leak-proof wall part 40. As shown in FIG. Therefore, the degree of freedom of deformation of the absorbent core 11 is increased, and the narrow portion 111 of the absorbent core 11 is easily deformed into a mountain shape in accordance with the crotch width of the wearer. Thus, the narrow portion 111 of the absorbent core 11 can easily enter the crotch portion of the wearer, and the diaper 1 can be pulled up smoothly.

Moreover, it is preferable that the intermittent fixing | fixed part 53 and the product center CL1 of the diapar 1 do not overlap. By doing so, when forming the diaper 1 from the unfolded state (FIG. 2) into a pants-type, the intermittent fixing portion 53 is not folded in half, and the intermittent fixing portion 53 is prevented from being creased it can. Then, the portion of the absorbent main body 10 at which the intermittent fixing portion 53 is located can be easily pulled up horizontally by the intermittent fixing portion 53 having high rigidity in the planar state. Therefore, the pullability of the portion of the absorbent main body 10 on the ventral side where the intermittent fixing portion 53 is located is improved.

Moreover, the leak-proof wall part 40 has the pinch joint part 54, as shown to FIG. 7C. The pinching joint 54 shortens the length of the sheet that can rise from the side end 11 a of the absorbent core 11. Therefore, at the time of pulling up the diaper 1, the portion of the absorbent core 11 at which the pinched joint portion 54 is located is unlikely to sag, and is likely to be pulled up following the leakproof wall portion 40. Thus, the pullability of the diaper 1 is improved.

As described above, the pull-up property of the diaper 1 (the absorbent main body 10) is improved by the pinching joint portion 54 and the intermittent fixing portion 53. Therefore, in a state in which the diaper 1 is expanded and extended in the vertical direction (FIG. 5), it is preferable that the pinch joint portion 54 be disposed at a position not overlapping the intermittent fixing portion 53 in the vertical direction. That is, it is preferable to shift and arrange the pinch joint portion 54 and the intermittent fixing portion 53 in the longitudinal direction of the absorbent main body 10. By doing so, the pullability of the absorbent main body 10 can be improved over a wide range in the longitudinal direction of the absorbent main body 10.

Further, in a state where the diaper 1 is expanded and extended in the vertical direction (FIG. 5), the length of the intermittent fixing portion 53 in the vertical direction is L1, the length in the vertical direction of the pinch joint 541 on the ventral side is L2, and the back The length in the vertical direction of the knob joint 542 is L3. Further, the length in the vertical direction of a portion of the pinch joint portion 542 on the back side not overlapping with the back waistline portion 30 is L4. Then, a portion of the absorbent main body 10 between the ventral waist portion 20 and the back waist portion 30, that is, the length in the vertical direction from the lower end 20a of the ventral waist portion 20 to the lower end 30a of the back waist portion 30 It is L5.

The portion of the absorbent main body 10 between the ventral waist portion 20 and the back waist portion 30 is less likely to be pulled up than the portion overlapping the ventral waist portion 20 or the back waist portion 30. Therefore, in the state in which the diaper 1 is expanded and extended in the vertical direction (FIG. 5), the intermittent fixing portion 53 and the pinching portion in the portion of the absorbent main body 10 between the ventral waistline portion 20 and the back waistline portion 30 It is preferable to make the vertical length (L1 + L2 + L4) of the portion where at least one of the 54 is arranged longer than the vertical length (L5− (L1 + L2 + L4)) of the other portion. By doing so, the pullability of the portion of the absorbent main body 10 that is hard to pull up can be improved.

In addition, the contraction force (pull-up force) of the side elastic member 41 is more likely to act on the absorbent core 11 in the portion where the intermittent fixing portion 53 is positioned than in the portion where the pinching portion 54 is positioned. The absorbent core 11 is easily pulled up following the wall 40. That is, the pullability of the absorbent main body 10 can be further improved in the intermittent fixing portion 53 compared to the pinching portion 54.

Therefore, it is preferable that the length L1 in the vertical direction of the intermittent fixing portion 53 be shorter than the lengths L2 and L3 in the vertical direction of the pinch joint 54 in a state where the diaper 1 is expanded and extended in the vertical direction (FIG. 5) (L1 <L2, L3). That is, it is preferable not to make the intermittent fixing portion 53 unnecessarily long. By doing so, it is possible to reduce the decrease in contact with the wearer's skin due to the high rigidity intermittent fixing portion 53. In addition, since the intermittent fixing portion 53 can improve the pullability of the absorbent main body 10 without lengthening the intermittent fixing portion 53, the pullability of the diaper 1 can be maintained.

=== 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, it goes without saying that the present invention can be modified or improved without departing from the gist thereof, and that the present invention includes equivalents thereof.

In the above embodiment, the ventral waistline portion 20 and the back waistline portion 30 are separated to exemplify a diaper which is a separate member, but a crotch is provided between the ventral waistline portion 20 and the back waistline portion 30 The ventral waistline portion 20 and the back waistline portion 30 may be one continuous member.

Further, the leak preventing wall portion 40 may not have the pinch joint portion 54. Alternatively, only one of the pinch joint 541 on the ventral side and the pinch joint 542 on the dorsal side may be provided. Alternatively, the knob joint 54 may be provided continuously in the longitudinal direction of the absorbent main body 10. Further, the relationship of lengths of the front end fixing portion 51, the rear end fixing portion 52, the intermittent fixing portion 53, the pinch joint 54, the leak preventing wall 40 and the like is not limited to the relationship of the above embodiment.

1 diaper (pants type absorbent article),
10 Absorbent body, 11 absorbent core, 111 narrow part,
12 skin side sheets, 13 non skin side sheets,
14 sheet members, 15 core wrap sheets,
20 ventral waist, 21 inner layer sheet, 22 outer layer sheet,
23 waist elastics, 24 cover sheets,
30 back waist, 31 inner sheet, 32 outer sheet,
33 waist elastic member, 34 cover sheet, 35 extension elastic member,
40 leakproof wall, 401 root area, 402 tip area,
41 side elastic member (elastic member), 42 skin side, 43 non-skin side,
42a tip of leakproof wall, root of 43a leakproof wall,
51 front end fixing portion, 52 rear end fixing portion, 53 intermittent fixing portion,
54 knob joints (joints),
541 ventral pinching joint (first joint),
542 dorsal pinching joint (second joint),

Claims

Have vertical and horizontal directions that cross each other, and
The absorbent core disposed along the vertical direction, a skin-side sheet disposed closer to the wearer's skin than the absorbent core, and a pair of leak-barriers, and the lower end in the vertical direction Absorbent body bent back and forth at,
A ventral torso portion joined to the upper end of the absorbent body on the front side in the front-rear direction;
A dorsal waist portion joined to an upper end of the absorbent main body on the rear side in the front-rear direction;
A pant-type absorbent article having
The absorbent main body includes an elastic member that expands and contracts in the vertical direction at both side portions in the horizontal direction,
The pair of leak preventing wall portions can be erected on the skin side by the elastic member,
The absorbent body is
A front end fixing portion that fixes the leakage preventing wall portion so as not to stand up at the front upper end portion;
A rear end fixing portion that fixes the leakage preventing wall portion so as not to stand up at the upper end portion on the rear side;
And an intermittent fixing portion fixing the leakproof wall portion to the skin-side sheet at a position spaced apart from the front end fixing portion and the rear end fixing portion in the vertical direction,
The leakage preventing wall portion includes a root region on the root side of the leakage preventing wall portion from an inner end of the intermittent fixing portion in the left-right direction, and a tip region on the tip side of the leakage preventing wall portion with respect to the root region. Have
The pant-type absorbent article, wherein the elastic member is disposed only in the tip region.
The pants-type absorbent article according to claim 1, wherein
The distance between the front end fixing portion and the intermittent fixing portion, and the intermittent fixing portion and the rear end fixing portion, as compared with the length of the erectable portion of the leak preventing wall portion in the intermittent fixing portion. A pants-type absorbent article, characterized in that the length of the erectable portion of the leakproof wall in the interval is longer.
The pants-type absorbent article according to claim 1 or 2, wherein
In the state where the pants-type absorbent article is developed and stretched in the vertical direction,
The leakage preventing wall between the intermittent fixing portion and the rear end fixing portion as compared to the vertical length of the leakage preventing wall between the front end fixing portion and the intermittent fixing portion A pants-type absorbent article characterized in that the length in the vertical direction of the above is longer.
The pants-type absorbent article according to claim 3, wherein
In the state where the pants-type absorbent article is developed and extended in the vertical direction, the belly-side waist side of the center of the intermittent fixing portion in the vertical direction is more than the center of the pants-type absorbent article in the vertical direction. A pant-type absorbent article characterized in that it is arranged in.
The pants-type absorbent article according to claim 3 or 4, wherein
In the state where the pants-type absorbent article is developed and extended in the vertical direction, the length of the rear end fixing portion in the vertical direction is greater than the length of the front end fixing portion in the vertical direction. A pants-type absorbent article characterized in that it is shorter.
The pants-type absorbent article according to any one of claims 1 to 5, wherein
The absorbent core has a narrow portion with a narrow width in the left-right direction as compared with the end portion at the central portion in the longitudinal direction,
A pants-type absorbent article, wherein at least a part of the intermittent fixing portion is disposed in line with the narrow portion in the left-right direction and outside the narrow portion.
The pants-type absorbent article according to any one of claims 1 to 6, wherein
The pants-type absorbent article, wherein the front end region has a joint portion in which at least a part of surfaces facing each other are joined on the inner side in the left-right direction than the front end of the leakproof wall portion.
The pants-type absorbent article according to claim 7, wherein
The pants-type absorbent article, wherein the length in the lateral direction of the joint portion is shorter than the length in the lateral direction of the intermittent fixing portion.
The pants-type absorbent article according to claim 7 or 8, wherein
The pants-type absorbent article, wherein the number of the elastic members disposed in the joint portion is smaller than the number of the elastic members not disposed in the joint portion.
The pants-type absorbent article according to any one of claims 7 to 9, wherein
In the state where the pants-type absorbent article is developed and stretched in the vertical direction,
The joint portion includes a first joint portion disposed closer to the belly-side waist portion than the intermittent fixing portion, and a second junction portion disposed closer to the back-side waist portion than the intermittent fixing portion. A pants-type absorbent article characterized by having.
The pants-type absorbent article according to claim 10, wherein
In the state where the pants-type absorbent article is developed and stretched in the vertical direction,
The pants-type absorbent article, wherein the length in the vertical direction of the second joint portion is longer than the length in the vertical direction of the first joint portion.
The pants-type absorbent article according to claim 10 or 11,
In a state in which the pants-type absorbent article is developed and extended in the vertical direction, the first joint portion and the second joint portion are disposed at positions not overlapping the vertical center of the pants-type absorbent article. A pants-type absorbent article characterized in that