JP5238271B2 - Disposable diapers - Google Patents

Description

  The present invention relates to a disposable diaper.

  Conventionally, in a disposable diaper, a structure for preventing a diaper wearer's skin from being soiled by excrement is disclosed in Japanese Patent Application Laid-Open No. 2002-11044 (Patent Document 1) and Japanese Translation of PCT Application Publication No. 9-510385 (Patent Document). 2) etc.

  The diaper disclosed in Japanese Patent Application Laid-Open No. 2002-11044 is of a pants type, and has a skin contact sheet above a liquid-permeable top sheet covering the absorber. This skin contact sheet is bonded to the top sheet or the back sheet at both ends in the longitudinal direction, has an opening for passing feces through the crotch region, and the skin contact sheet so that the elastic member surrounds the opening Attached in an extended state. When the diaper is worn, the skin contact sheet is lifted from the top sheet and can come into contact with the wearer's skin.

The diaper disclosed in Japanese Patent Publication No. 9-510385 is of an open type, and has flexible flaps that are long in the longitudinal direction on both sides of the longitudinal symmetry axis. Each of the flaps is connected to the inner casing sheet along one of the longitudinal side edges, and the laterally extending portion of the diaper toward the longitudinal symmetry axis is the other flap in the diaper crotch region It is joined to. However, the vertical side edges of the flaps are separated by a maximum of 6 cm at the center of the fecal excretion point.
JP 2002-11044 A JP 9-510385 gazette

  The diaper disclosed in Patent Document 1 can prevent excrement such as feces from touching the skin with the skin contact sheet, but when excrement passing through the opening flows laterally on the top sheet. There is no positive means to prevent leakage around the leg of the diaper. Therefore, in this diaper, there may be a problem that the skin around the leg is soiled by excrement.

  Since the diaper disclosed in Patent Document 2 is connected to the inner liquid-permeable casing sheet, one of the side edges of the flexible flap provided on both sides of the longitudinal axis of symmetry, the liquid-permeable casing sheet. It is possible to prevent excrement flowing laterally on the leg from leaking from around the legs. However, in this diaper, since the other side edges of the flaps are joined in the crotch region, when the diaper is worn, the flap that stands up from the liquid-permeable sheet and contacts the diaper wearer's leg. May lie down toward the liquid-permeable casing sheet, creating a gap between the skin around the legs and causing excrement to easily leak from around the legs. As a result, there may be a problem that excrement touches the skin around the legs.

  An object of the present invention is to provide a disposable diaper that can solve the above-mentioned problems in conventional diapers.

In order to solve the above-described problems, the present invention is directed to a crotch region having a front-rear direction and a width direction, a front waistline region formed in front of the crotch region, and a rear part of the crotch region. And a body fluid absorbing portion formed on the inner surface side of the covering portion, and the body fluid absorbing portion is provided on the inner surface side of the crotch region. a seat, front body fluid absorbent core interposed between the liquid-impermeable sheet KiTorueki sheet and the covering portion, be passed through the located further inside surface side of the liquid-permeable sheet excrement A sheet piece for skin contact that extends in the front-rear direction in which possible openings are formed, and the sheet piece for skin contact has the front waist area and the rear waist area at both end portions in the front-rear direction. And the periphery of the opening is separated from the liquid-permeable sheet and the opening Wherein in the vicinity of a disposable diaper capable of preventing the contact between the liquid-permeable sheet and the skin.

In this disposable diaper, the present invention is characterized as follows. It further has a leakage barrier located further inside the body fluid absorbing portion and extending from the crotch region to the front / rear waist region. The leakage barrier includes a base edge portion that extends in a state of being fixed to the body fluid absorbing portion on the outer side in the width direction of the sheet piece for skin contact, and a free edge that is free to deform and extend in parallel to the base edge portion. A front and rear fixed end portion that forms both end portions in the front-rear direction and is fixed to the body fluid absorbing portion, and an elastic member that is attached to the free edge portion in an extended state and extends in the front-rear direction. The sheet piece for skin contact includes the side portion extending in the front-rear direction on each side of the opening in the width direction, and the liquid permeable portion along a bending guide line in which a part of the side portion extends in the front-rear direction. A side edge portion that is bent toward the conductive sheet side, and at least one elastic member that is attached to the side portion and extends in the front-rear direction through the side of the opening. The side part is joined to the leakage barrier, and the side edge part is joined to the liquid-permeable sheet.

In another preferred embodiment of the present invention, the side portion of the sheet piece for skin contact is in a non-bonded state with respect to the leakage barrier at an intermediate portion in the front-rear direction .

In the disposable diaper according to the present invention, when the diaper is worn, the skin piece is lifted so as to be separated from the liquid-permeable sheet in the crotch region by contraction of the elastic member attached to the side portion. If it will be in the state, since the sheet | seat piece for skin contact has joined the side part to the breakwater, the standing of a breakwater can be accelerated | stimulated. If the breakwater is erected, the free edge portion of the diaper wearer can easily come into contact with the leg circumference, and the ability to prevent leakage of excrement from the leg circumference is improved.
Since the side part of the sheet piece for skin contact is bonded to the leakage barrier and also to the liquid permeable sheet, the leakage barrier is moved in the width direction. In addition, the movement of the sheet piece for skin application is suppressed, and the positional relationship between the sheet piece for skin application and the wearer can be prevented from greatly deviating.

  The side portion of the sheet piece for skin contact is bent along a bending guide line extending in the front-rear direction, and is joined to the liquid-permeable sheet at the bent portion and protected at the unfolded portion. In this invention of the aspect currently joined to the breakwater, it becomes possible to form a barrier that stops the flow of excrement in the width direction by the sheet piece for skin contact.

  In the diaper of this invention in which the sheet piece for skin contact and the breakwater are in a non-joined state at the center portion in the front-rear direction of the diaper, the sheet piece for skin contact and the breakwater move relative to each other in the center portion. Is not restrained.

  The details of the disposable diaper according to the present invention will be described with reference to the accompanying drawings.

1 and 2 are a partially broken perspective view of the diaper 1 and a cross-sectional view taken along the line II-II of the perspective view. The diaper 1 in FIG. 1 is in a state where it is worn, and the front and rear direction, the width direction, and the height direction are indicated by A, B, and C, and the covering portion is formed in a pants shape. 2 and the body fluid absorbing part 3 formed on the inner surface side of the covering part 2. The covering portion 2 is formed by an inner surface-side covering sheet 6, an outer surface-side covering sheet 7, and a liquid-impervious leak-proof sheet 8 interposed between these sheets 6 and 7, and includes a crotch region 11, an inseam It has a front waistline region 12 located in front of the region 11 and a rear waistline region 13 located behind the crotch region 11. The front and rear waist regions 12 and 13 have side edges 15 and 16 that overlap each other in a palm-like shape, and are joined at a plurality of portions 17 that are intermittently arranged in the height direction C in FIG. In addition, a pair of leg openings 19 are formed in cooperation with the crotch region 11.
At the periphery of the waist opening 18 and the leg opening 19, a plurality of waist elastic members 21 and leg elastic members 22 are located between the inner surface side covering sheet 6 and the outer surface side covering sheet 7, and these sheets 6, 7 is bonded in an extended state to at least one of them.

The body fluid absorbing portion 3 is formed so as to extend in the front-rear direction A in the crotch region 11 and includes a liquid-absorbing panel 33a and a skin resting sheet 33b. The liquid-absorbent panel 33a is a liquid-permeable cover material that covers the body fluid-absorbing core 31 formed by wrapping the water-absorbing material 31a with tissue paper 31b and at least the surface of the core 31 facing the wearer's skin. The skin covering sheet 33b is provided further on the inner surface side than the top sheet 32. In the front-rear direction A of FIG. 2, the skin pad 33 b has a front end portion 34 and a rear end portion 36 fixed to the top sheet 32 in the front and rear waist regions 12 and 13, while the intermediate portion 35 is the top in the crotch region 11. The sheet 32 is spaced upward. Further, in FIG. 2, the core 31 is not interposed between the barrier sheet 8 provided on the outer surface side of the topsheet 32 and the crotch region 11 provided on the inner surface side of the crotch region 11, the proof The body fluid absorbed by the core 31 is not leaked from the diaper 1 because it is covered from the outer surface side of the diaper 1 by the leakage sheet 8.

FIG. 3 is a plan view of a diaper 1 ′ obtained by removing the joints of the front and rear waist regions 12 and 13 in the region 17 of FIG. 1 and developing the diaper 1 in the front-rear direction A and the width direction B. The front and rear waistline elastic members 21 _F and 21 _R collectively referred to as the periphery elastic member 21, the left and right leg elastic members 22 _L and 22 _R collectively referred to as the leg elastic member 22, and the skin pad 33 b. The left and right crotch region elastic members 37 _L and 37 _{R, which} are attached in a state and are collectively referred to as the crotch region elastic member 37, are indicated by chain lines. The left and right in the present invention mean the left and right for the wearer of the diaper 1, and the diaper 1 ′ is a longitudinal center line PP that bisects the dimension in the width direction B and the front-rear direction A. And a horizontal center line Q-Q that bisects the dimensions of the vertical axis P-P.

In FIG. 3, the covering portion 2 is formed in an hourglass shape, and the body fluid absorbing portion 3 is formed in a rectangular shape. The skin contact sheet 33b in the body fluid absorbing portion 3 is formed of a sheet piece such as a nonwoven fabric or a plastic film, and is preferably liquid-impervious, along both side edges 33 _L and 33 _R of the liquid-absorbing panel 33a. Thus, both side portions 40 _L and 40 _R extending in the front-rear direction A are connected, and the both side portions 40 _L and 40 _R are connected by the intermediate portion 35.

The both side portions 40 _L and 40 _R and the intermediate portion 35 define a U-shaped front opening 38 extending from the crotch region 11 toward the front waist region 12, and from the crotch region 11 to the rear waist region 13. A U-shaped rear opening 39 extending toward the front is defined. The front opening 38 has left and right side edges 71 _L and 71 _R collectively referred to as side edges 71, and a curved bottom edge 72 that connects these side edges 71 _L and 71 _R. The rear opening 39 has left and right side edges 73 _L and 73 _R collectively referred to as side edges 73, and a curved bottom edge 74 that connects these side edges 73 _L and 73 _R. The crotch region elastic members 37 _L and 37 _R of the skin contact sheet 33 b are preferably formed of a single piece of rubber thread and extend in the front-rear direction A through the sides of the front opening 38 and the rear opening 39. It extends. When the crotch region 11 of the diaper 1 is curved in the front-rear direction A as shown in FIGS. 1 and 2, the elastic members 37 _L and 37 _R contract in the front-rear direction A, thereby reducing the dimension of the skin resting sheet 33 b in the front-rear direction A. The intermediate portion 35 acts so as to be spaced apart from the top sheet 32 (see FIG. 2).

Also in the body fluid absorbent structure 3, the leak-barrier dam 58 is formed. Leak-proof bank 58 is a general term for both sides ₄₀ L, 40 a pair of anti-extending overlapping the longitudinal direction A, each of _R Motsutsumi ₅₈ L, 58 _R of the skin-contact sheet 33b.

  FIG. 4 is an exploded view of the diaper 1 ′. The outer surface side covering sheet 7 is formed of a nonwoven fabric or a plastic film, and a waist elastic member 21 and a leg elastic member 22 are interposed on the inner surface (upper surface in the figure) via a hot melt adhesive (not shown). Attached in an extended state. A leak-proof sheet 8 formed of a liquid-impermeable plastic film is also bonded to the inner surface by adhesion or welding. The inner surface side covering sheet 6 having the same shape and size as the outer surface side covering sheet 7 and formed of a nonwoven fabric or a plastic film is joined to the inner surfaces of the outer surface side covering sheet 7 and the leak-proof sheet 8 by adhesion or welding. Nearly the entire outer surface (lower surface in the drawing) of the liquid-absorbing panel 33a in the body fluid absorbing portion 3 is joined to the inner surface (upper surface in the drawing) of the inner surface side covering sheet 6 via a hot melt adhesive (not shown). .

  When the diaper 1 of FIG. 1 is worn, the wearer's external genitals look into the front opening 38 shown in FIG. 3, the anus looks into the rear opening 39, and the intermediate part 35 is between the external genitalia and the anus. Adjust the wearing state so that it touches the skin. In realizing the wearing state, the bottom edge 72 of the front opening 38 is positioned in front of the lateral center line QQ, and the bottom edge 74 of the rear opening 39 is above the lateral center line QQ, or It is preferable to be located in the vicinity of the horizontal center line QQ.

In the disposable diaper according to the present invention, the size of each part of the diaper varies greatly depending on whether it is for an infant or an adult. Moreover, the dimension of each part differs greatly also whether it is the underpants type diaper 1 of an example of illustration, or the open type diaper. However, generally, the dimension D ₁ (see FIG. 3) in the front-rear direction A of the intermediate portion 35 on the longitudinal center line PP in the diaper 1 is preferably 20 to 70 mm. The maximum dimensions D ₃ and D ₄ (see FIG. 3) in the width direction B of the front opening 38 and the rear opening 39 are preferably 50 to 400 mm.

  5-8 is a figure which shows the detail of the bodily fluid absorption part 3, Comprising: FIG. 5 has shown the state which expanded and partially fractured the bodily fluid absorption part 3 shown in FIG. Reference numeral 8 denotes a cut surface along the line VI-VI, VII-VII, and VIII-VIII in FIG. The line VIII-VIII coincides with the horizontal center line QQ.

5-8, the liquid-absorbing panel 33a of the bodily fluid absorption part 3 was formed with the aggregate | assembly of the water absorbing material 31a which consists of a mixture of a pulverized pulp, a pulverized pulp, and a superabsorbent polymer particle | grain etc., and tissue paper 31b. A core material 31 and a top sheet 32 are included. For the liquid-absorbing panel 33a, a longitudinal center line PP and a lateral center line QQ of the diaper 1 'are also shown. The skin contact sheet 33b is a hot melt adhesive (not shown) so that the crotch region elastic members 37 _L and 37 _R are symmetrical with respect to the longitudinal center line PP on the lower surface of the nonwoven fabric forming the sheet 33b. It is attached in an extended state using.

The crotch region elastic members 37 _L is extend to the first and second portions ₈₁ L, 82 _L are substantially straight along the side edges 73 _L of the side edges 71 _L and the rear opening 39 of the front opening 38, the third portion 83 _L along the bottom edges 72 and 74 are curved to be convex toward the longitudinal center line P-P in the intermediate portion 35. The other crotch region elastic member 37 _R extends in the first, second portion ₈₁ R, 82 _R are substantially straight along the side edges 73 _R of the side edges 71 _R and the rear opening 39 of the front opening 38 have been, are curved such that the third portion 83 _R along the in the intermediate portion 35 the bottom edge 72 and 74 is convex toward the longitudinal center line P-P. In the width direction (B) of the sheet 33b, the elastic member 37 _L and 37 _R, in closest state in the intermediate portion 35.

Skin contact sheet 33b is side portions ₄₀ L, 40 the side edge of the _R portion ₄₈ L, 48 _R in the inner surface facing the topsheet 32 longitudinal center line P-P in a parallel folding guide line ₇₄ L, It is bent along the 74 _R. The bent side edge portions 48 _L and 48 _R are bonded to the top sheet 32 that is the inner surface of the liquid-absorbent panel 33 a through an adhesive 49.

The both side portions 40 _L and 40 _R of the skin resting sheet 33b are connected to the front and rear end portions 34 and 36 and the both side portions 40 _L and 40 _R , and have an intermediate portion 35 having a dimension D1 (see FIG. 4) in the front-rear direction A. And a front region 78 between the front end portion 34 and the intermediate portion 35, and a rear region 79 between the rear end portion 36 and the intermediate portion 35.

In FIG. 5, the leakage barriers 58 _L and 58 _R provided in the body fluid absorbing portion 3 are formed by folding sheet pieces such as nonwoven fabric and plastic film into a Z shape or an inverted Z shape, preferably Impervious to liquids. The breakwaters 58 _L and 58 _R include elastic members 63 _L and 63 _R that extend in the front-rear direction A and are collectively referred to as the elastic member 63. FIGS. 6 to 8 show a leakage barrier 58 </ b> _L folded in an inverted Z shape among the leakage barriers 58.

The breakwaters 58 _L and 58 _R and the skin resting sheet 33 b are such that unfolded portions of both side portions 40 _L and 40 _R of the skin resting sheet 33 b are connected to the intermediate side 59 b via the adhesive 61 d. It is joined. The adhesive 61d is applied to a part of the front area 78 and the rear area 79 of the skin resting sheet 33b, but is not applied to the intermediate part 35 and its vicinity. In the breakwaters 58 _L and 58 _R , the bottom side 59a is joined to the outer surface of the liquid-absorbent panel 33a via the adhesive 61a, and the intermediate side 59b and the top side 59c are joined via the adhesive 61e.

FIG. 6 shows a cut surface crossing the rear end portion 36 of the skin resting sheet 33b. Note that the cut surface that crosses the front end portion 34 of the skin resting sheet 33b and is parallel to the cut surface of FIG. 6 is in substantially the same state as FIG. In FIG. 6, the rear end portion 36 is bonded to the top sheet 32 via a hot melt adhesive 49. Leak barriers 58 _L are those which are formed on the outside of the skin contact sheet 33b in the width direction B, joined to the outer surface of the liquid-absorbent panel 33a that base 59a via the hot melt adhesive 61a, intermediate The side 59b is joined to the skin contact sheet 33b via the hot melt adhesive 61d. The leak-proof barriers 58 intermediate sides 59b and top sides 59c of the _L are bonded with a hot melt adhesive 61e. Moreover, as is clear in FIG. 5, the front and rear end portions of the leakage-barriers 58 _L 59d, the intermediate sides 59b is in a portion extending to the longitudinal direction A from the skin-contact sheet 33b in 59e, via the hot-melt adhesive 61d The top sheet 32 is fixed.

FIG. 7 shows a cut surface passing through the rear region 79 of the skin resting sheet 33b, but the cut surface passing through the front region 78 of the skin resting sheet 33b and parallel to the VII-VII line is also in the same state as FIG. is there. In FIG. 7, the skin contact sheet 33b is joined to the top sheet 32 where the bent side edge portions 48 _L and 48 _{R of the} side portions 40 _L and 40 _R are the inner surfaces of the liquid-absorbent panel 33 a. , bent are not even moiety is bonded to the intermediate section 59b of the vibration Motsutsumi 58 _L. Leak barriers 58 _L is, among base 59a, a portion extending in the front-rear direction A is fixed to the outer surface of the liquid-absorbent panel 33a by an adhesive 61a and base edge portion, among the top edge 59c, intended to be elastically deformable free portion free edge elastic member 63 _L is parallel to the base edge portion is attached in a stretched state, skin contact sheet 33b, the free edge and these base edge portion It is joined to the breakwater 58 between the parts.

FIG. 8 shows a cut surface passing through the intermediate portion 35 of the skin resting sheet 33b. The skin contact sheet 33 b has a side edge portion 48 _L bonded to the top sheet 32 that is the inner surface of the liquid-absorbent panel 33 a through an adhesive 49. Leak barriers 58 _L is bonded to the outer surface of the liquid-absorbent panel 33a through the adhesive 61a, the skin contact sheet 33b not bonded.

When the diaper 1 having the body fluid absorbing portion 3 of FIG. 5 is in the state of FIG. 1, the skin contact sheet 33 b in FIG. 7 is lifted from the top sheet 32 due to contraction of the elastic member 37 _L , and bent side edges the portion 48 _L by stretching to as a virtual line, acts to erect the intermediate section 59b of the leak-proof barriers 58 _L. Therefore, when you wear a diaper 1, leak-proof barriers 58 _L is easily erected. The intermediate portion 35 of the raised skin resting sheet 33b extends across the liquid-absorbing panel 33a. When the imaginary line is reached, the skin between the external genitalia of the diaper wearer and the anus can be easily applied to the skin. It is possible to prevent contact between the skin and the liquid-absorbent panel 33a that has contacted and absorbed excreta.

Furthermore, the skin-contacting sheet 33b that has risen serves as a barrier 76 that stops the flow of excrement in the width direction B. In addition, it can also be said that this skin resting sheet 33 b forms the pocket 90 in cooperation with the top sheet 32. In the width direction B, and standing the leakage preventing dam 58 _L on the outer side of the barrier 76. Therefore, leakage of excrement from the diaper 1 pocket 90 can be blocked by double walls of these barrier 76 and the leak-barrier dam 58 _L. The standing breakwater 58 </ b> _L can form a pocket 75 in cooperation with the top sheet 32. The pocket 75 can receive the body fluid flowing in the width direction B, and the pocket 75 is opened toward the inside in the width direction B.

As shown by the bodily fluid-absorbent 3 in FIG. 7, in the width direction B, skin contact sheet 33b is the dimension in the width direction B as the dimension L ₁ from the adhesive 61d until the adhesive 49 is suitable value it is possible to adjust, leak barriers 58 _L is possible to adjust the size of the width direction B so that the dimension L ₂ until the adhesive 61a becomes a suitable value from the adhesive 61d. In the diaper 1, by adjusting the difference between the dimension L ₁ and the dimension L ₂ , the skin resting sheet 33 _b unnecessarily restrains the height at which the leakage breaker 58 _L stands up, or on the contrary. It is possible to prevent the leakage barrier 58 </ b> _L from unnecessarily restraining the height at which the skin resting sheet 33 b is lifted.

In FIG. 8, are separated from each other and the sheet 33b and the leak-proof bank 58 _L for skin contact, since the joined together in the front region 78 and rear region 79. the skin contact sheet 33b, leak-proof barriers 58 _L does not fall toward the outside of the crotch region 11. Skin contact sheet 33b not only leak-proof bank 58 _L, since joined to the topsheet 32, to prevent displacement of the skin contact sheet 33b as compared with the case where bonded only to leak-proof Tsutsumi be able to. That is, when moving in the width direction leakage preventing bank 58 _L is the like movements of the wearer, but also moves skin-contact sheet 33b joined thereto, the skin-contact sheet 33b thereof by bonding the topsheet 32 Movement is suppressed. Therefore, it is possible to prevent the positional relationship between the skin resting sheet 33b and the wearer from being greatly deviated, and the wearer's external genitals or anus can be seen through the front and rear openings 38, 39 of the skin resting sheet 33b. Thus, the wearing state can be maintained. Incidentally, such a relationship between the sheet 33b and the leak-barrier dam 58 _L for skin contact, leakage-barriers 58 _L is, when standing by the contraction of the installed elastic member 63 _L to, for skin contact It can also be said that the sheet 33b acts so as to be separated from the top sheet 32. Further, leakage preventing dam 58 _L are joined so against skin contact sheet 33b may be intermediate section 59b is gently bent to be convex toward the longitudinal center line P-P.

The partial fracture perspective view of a disposable diaper. II-II sectional view taken on the line of FIG. The development view of the diaper of FIG. The exploded assembly figure of the diaper of FIG. The enlarged view of a bodily fluid absorption part. The figure which shows the VI-VI line | wire cut surface of FIG. The figure which shows the VII-VII line cut surface of FIG. The figure which shows the VIII-VIII line cutting line of FIG.

Explanation of symbols

1 Disposable diapers 8 Impervious sheet (leak-proof sheet)
11 Inseam area 12 Front waist area 13 Rear waist area 31 Core material 32 Liquid permeable sheet (top sheet)
33b Sheet piece for skin application (skin application sheet)
37, 37 _L , 37 _R elastic member 38 front opening 39 rear opening 40, 40 _L , 40 _R side 58, 58 _L , 58 _R leakage breakwater 59a base portion (bottom side)
59c Free edge (top)
59d Fixed end part (front end part)
59e Fixed end part (rear end part)
63, 63 _L , 63 _R elastic member A longitudinal direction B width direction

Claims (2)

A covering portion comprising a crotch region having a front-rear direction and a width direction, a front waistline region formed in front of the crotch region, and a back waistline region formed in the rear of the crotch region , and the cover portion A body fluid absorption part formed on the inner surface side of
The body fluid absorbent has a liquid-pervious sheet provided on the inner surface of the crotch region, a body fluid absorbent core interposed between the liquid-impermeable sheet before KiTorueki sheet and the covering portion, A sheet piece for skin contact that extends in the front-rear direction and is formed on an inner surface side of the liquid-permeable sheet and has an opening that allows excretion to pass therethrough. Both end portions in the front-rear direction are fixed to the front waistline area and the back waistline area, and the periphery of the opening is separated from the liquid-permeable sheet and the liquid-permeability is around the opening. A disposable diaper capable of preventing contact between the sheet and the skin,
Further located on the inner side of the body fluid absorption part, further having a leakage barrier extending from the crotch region to the front and rear waist region,
The leakage barrier includes a base edge portion that extends in a state of being fixed to the body fluid absorbing portion on the outer side in the width direction of the sheet piece for skin contact, and a free edge that is free to deform and extend in parallel to the base edge portion. A part, a front and rear fixed end part that forms both end parts in the front and rear direction and is fixed to the body fluid absorption part, and an elastic member that is attached to the free edge part in an extended state and extends in the front and rear direction,
The sheet piece for skin contact includes the side portion extending in the front-rear direction on each side of the opening in the width direction, and the liquid permeable portion along a bending guide line in which a part of the side portion extends in the front-rear direction. A side edge portion bent toward the adhesive sheet side, and at least one elastic member attached to the side portion and extending in the front-rear direction through the side of the opening,
The said diaper characterized by the above-mentioned. The said side part is joined to the said breakwater, and the said side edge part is joined to the said liquid-permeable sheet.   The diaper according to claim 1, wherein the side portion of the sheet piece for skin contact is in a non-joined state with respect to the leakage barrier at an intermediate portion in the front-rear direction.

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