JP2016067761A - Disposable diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable diaper which has, in a rear waist region, a downwardly openable pocket for holding and retaining excreta which moves toward a waist opening side.SOLUTION: A rear waist region 14 has a pocket forming part 20 provided with a downwardly openable pocket 30 which faces in the front-back direction. The pocket forming part 20 has: bilateral fixed parts 45 which are fixed to a band-shaped region 23; a pocket inner-side region 42 which extends between the bilateral fixed parts 45 upward from a portion connecting to the band-shaped region 23; and a pocket outer-side region 43 which faces the pocket inner-side region 42 in the front-back direction across a fold part 33 extending in a horizontal direction X and extends toward a crotch region 15, the pocket outer-side region being positioned on an extension of an absorbent body 85. A pocket elastic body 49 which extends in the horizontal direction X is disposed in the pocket inner-side region 42. The pocket outer-side region 43 has a portion which is located on the extension of bilateral edges 85c of the absorbent body 85 and is folded in the horizontal direction X.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a disposable diaper.

  Conventionally, disposable diapers having pockets for containing and holding excrement are known. For example, Patent Document 1 discloses a liquid absorption structure disposed around the crotch region, and a crossing so as to be positioned on the skin facing surface side in the front and rear waist region and to cover the front and rear end portions of the liquid absorption structure. There is disclosed a disposable diaper having a stretchable sheet, and a pocket for accommodating excrement is defined between the stretchable sheet and the front and rear ends of the liquid absorbing structure.

JP 2001-252303 A

  In the disposable diaper which concerns on the invention disclosed by patent document 1, the excrement which moved to the front-back waist area can be accommodated and hold | maintained by the pocket being defined in the front-back waist area.

  However, in the wearing state of the diaper, the stretchable sheet is stretched in conjunction with the stretch of the front / rear waist region in the direction around the waist, so the stretchable sheet is worn in close contact with the front / rear ends of the liquid absorbing structure. Fits the body of the person. As a result, the opening of the pocket defined between the stretchable sheet and the front and rear end portions is closed, and excrement does not enter the pocket, but moves on the stretchable sheet and the back of the wearer becomes dirty. There is a fear. In addition, even if the accommodation pocket is formed, the pocket shape is deformed by body pressure by repeating the state of supine and lying on the infant, so that an opening to accommodate excrement is not formed, the original shape There is also a risk that it will not return.

  The subject of this invention is improvement of the conventional diaper, Comprising: It exists in provision of the disposable diaper provided with the pocket which can be opened downward for accommodating and hold | maintaining the excrement which moves to a waist opening side in a back waist region. .

  In order to solve the above-mentioned problems, the present invention has a vertical direction and a horizontal direction and a front-rear direction intersecting them in a worn state, a skin contact surface and a non-skin contact surface on the opposite side, and a front waist The present invention relates to a disposable diaper including a region, a rear waist region, a crotch region located between the front and rear waist regions, and an absorbent body extending from the crotch region to the front and rear waist regions.

  In the disposable diaper according to the present invention, the rear waist region is located on the skin contact surface side and extends in the lateral direction, and is located on the non-skin contact surface side, and in the center in the lateral direction. A pocket forming portion having a pocket that can be opened downward facing the belt-like region in the front-rear direction, and the pocket forming portion includes both side fixing portions fixed to the belt-like region, and the both side fixing portions. A pocket inner region extending upward from a portion connected to the belt-shaped region, and the pocket inner region extending in the front-rear direction to the crotch region through the bent portion extending in the lateral direction, and the absorption A pocket outer region located on an extension of the body, and in the pocket inner region, a pocket elastic body extending in the lateral direction is disposed, and the pocket outer region is an extension of both side edges of the absorbent body It said diaper characterized in that it comprises the transverse direction X bent portion to be located.

  The disposable diaper according to the present invention has a pocket forming portion provided with a pocket that can be opened downward in the rear waist region, and the pocket opening is not closed even when the rear waist region is extended in the worn state. The excrement moving to the waist opening can flow into the pocket to prevent leakage to the outside, and discomfort or skin troubles due to contact of excrement with the skin can be avoided.

The rear view of the disposable diaper which concerns on this invention. The figure which looked at the back waist area in the non-wearing state of a diaper from the upper part. The perspective view of the back waist area in the wearing condition of a diaper. The partially broken expanded view of a diaper in the state which extended each elastic body to the vertical direction and the horizontal direction of a diaper. The exploded perspective view of a diaper. (A) The expansion | deployment top view of a base sheet, (b), (c) The figure which shows the folding process of a base sheet. (D) The figure which shows the bending state of a base sheet. Typical sectional drawing which follows the VII-VII line shown in FIG. Typical sectional drawing which follows the VIII-VIII line shown in FIG. FIG. 4 is a schematic cross-sectional view taken along line IX-IX shown in FIG. 3. Sectional drawing similar to FIG. Sectional drawing similar to FIG. Sectional drawing similar to FIG. Sectional drawing similar to FIG.

  The pull-on type (pants-type) diaper 10 shown as an example of the disposable diaper of the present invention includes a vertical direction Y, a horizontal direction X, a thickness direction (three-dimensional) Z orthogonal to them, and a vertical direction in a worn state. A vertical axis P that divides the dimension of the horizontal direction X into two equal parts, and a horizontal axis that extends along the horizontal direction X and divides the dimension of the vertical direction Y into two equal parts. Q. In addition, in this specification, "it overlaps in the planar view of the diaper 10" means overlapping in the thickness direction Z.

  1 and 4, a diaper 10 includes a skin facing surface and a non-skin facing surface facing the skin, an annular elastic waist panel 11 extending in a direction around the waist, and an absorbent chassis attached to the elastic waist panel 11. 12, a front waist region 13, a rear waist region 14, and a crotch region 15 located between the front and rear waist regions 13, 14. The diaper 10 is formed symmetrically with respect to the longitudinal axis P, and the elastic waist panel 11 includes a front waist panel 17 located in the front waist region 13 and a rear waist panel 18 located in the rear waist region 14. . The absorption chassis 12 includes an absorber 85 having both side edges 85c extending in the longitudinal direction Y.

  The front and rear waist regions 13 and 14 respectively have inner end edges 13a and 14a extending in the horizontal direction X and outer end edges (front and rear waist openings) extending in the horizontal direction X while being spaced apart from the inner end edges 13a and 14a in the vertical direction Y. Edge) 13b, 14b and a laterally long rectangular shape defined by both side edges 13c, 14c extending in the longitudinal direction Y between the inner and outer end edges 13a, 13b, 14a, 14b. Both side edges 13c of the front waist region 13 and both side edges 14c of the rear waist region 14 are overlapped with each other and connected by side seams 19 arranged intermittently in the longitudinal direction Y. And a waist opening 21 and a pair of leg openings are defined. The side seam 19 is made by known bonding means, for example, various known heat welding means such as hot embossing / debossing and sonic processing.

<Pocket>
Referring to FIGS. 1 to 3 and 8, the diaper 10 includes a belt-like region 23 that is positioned on the skin contact surface side and extends in the lateral direction X on the waist opening side of the rear waist region 14, and the rear waist region 14. In the center part of the horizontal direction X, it has the pocket formation part 20 provided with the pocket 30 which opposes the strip | belt-shaped area | region 23 in the front-back direction in a wearing state. The belt-like region 23 has a central portion 41 that faces the pocket 30 in the front-rear direction and is located at the lateral central portion of the rear waist region 14. The pocket forming part 20 extends in the lateral direction X, both side fixing parts 45 fixed to the band-like area 23, a pocket inner area 42 extending upward from a portion connected to the central part 41 of the band-like area 23 between the both side fixing parts 45. A pocket outer side region 43 extending to the crotch region 15 side facing the pocket inner side region 42 in the front-rear direction via the bent portion 33, and a pocket both side region 32 formed by both side portions of the pocket inner and outer side regions 42, 43. Have. The central portion 41 of the belt-like region 23 has inner and outer end portions (upper and lower end portions) 41 a and 41 b, and the pocket inner region 42 is connected to the inner end portion (lower end portion) 41 a of the central portion 41 via the bent portion 31. ing.

  As described above, the pocket both side areas 32 are formed by overlapping both sides of the pocket inner and outer areas 42 and 43, and both side fixing portions 45 other than the pocket both side areas 32 are formed on both sides of the belt-like area 23. Fixed to. The both side fixing portions 45 extend inward in the lateral direction X from the side seam 19, so that the pocket 30 has a size that opens at least in the central portion of the rear waist region 14. It does not have the size which opens in the whole area between 19. The belt-like region 23 and the pocket 30 are located on the waist opening side of the rear waist region 14. Here, “the waist opening side of the rear waist region 14” means a region closer to the outer edge 14b than a line that bisects the longitudinal dimension of the rear waist region 14.

  The belt-like region 23 is given elasticity in at least the lateral direction X by a string-like or strand-like rear upper waist elastic body 64 described later. A string-like or strand-like pocket elastic body 49 extending in the lateral direction X is disposed in the pocket inner region 42. In the present embodiment, the pocket elastic body 49 extends in the lateral direction X between the side fixing portions 45.

  2 and 3, when the diaper 10 of the present embodiment is worn and in a natural state, the pocket inner region 42 contracts in the lateral direction X to form a plurality of gathers 78, thereby forming the pocket inner region 42. The dimension in the lateral direction X is smaller than the dimension in the lateral direction X of the pocket outer side region 43. Moreover, the pocket outer side area | region 43 exists in the position which extended the existence area | region of the absorber 85 of the crotch area 15 to the strip | belt-shaped area 23 side, and the pocket both-side area | region 32 extends the both-sides edge 85c of the absorber 85 to the strip | belt-shaped area 23 side. Bend inward at the part where it is. The difference between the dimension in the lateral direction X of the pocket inner area 42 and the dimension in the lateral direction X of the pocket outer area 43 due to the contraction action of the pocket elastic body 49 and the extension of both side edges 85c of the absorbent body 85 in the pocket both side areas 32. Due to the inward bending, the pocket side regions 32 are folded so as to be able to extend inward in the lateral direction X (toward the vertical axis P).

  Thus, in the state which the folding part 31 and the pocket both sides area | region 32 were each expand | deployed slightly by becoming the aspect by which the pocket both side area | region 32 was folded so that extension was possible, in a top view of the diaper 10, Between 23 and the pocket 30, the recessed part 25 opened upwards is defined (refer FIG. 2). Further, the pocket 30 has a bent portion 31 bent toward the horizontal axis Q (downward), a pocket both side area 32 bent toward the inside of the horizontal direction X, and the waist opening 21 (upward). Both sides of the pocket when the belt-like region 23 is extended in the direction around the waist by being bent in different directions (three directions). The region 32 stands up and the pocket inner region 42 extends obliquely rearward with respect to the belt-like region 23, and a three-dimensional pocket space S for accommodating and holding excrement is formed inside the pocket 30. The inner end portion 41 a of the central portion 41 where the pocket inner region 42 is continuous is located on the outer side in the vertical direction Y with respect to the central portion in the vertical direction Y of the rear waist region 14. In order to more stably form the folding of the pocket side areas 32, a folding curve extending in the longitudinal direction Y is formed in advance on the extension of both side edges of the absorbent body 85 by pressure processing and / or heating processing. Also good.

  Referring to FIGS. 8 and 9, the pocket inner area 42 is inclined with respect to the central portion 41, and the inclination angle α with respect to the central portion 41 increases as it moves rearward. Therefore, as the inclination angle α increases, the pocket inner area 42 becomes in a lying state and serves as the top surface of the pocket 30, and the pocket 30 accommodates and holds a relatively large amount of excrement therein. It has a box shape having a pocket space (accommodating space) S that can be used.

<Elastic waist panel>
Referring to FIGS. 4 and 5, the front waist panel 17 has a front waist sheet 50 that defines the outer shape of the front waist region 13. The front waist sheet 50 includes a main body portion 52 where the front end portion 12A of the absorbent chassis 12 is disposed, and an extending portion 53 located outside the main body in the longitudinal direction Y. The extending portion 53 is bent inward in the vertical direction Y along a bending line 54 extending in the horizontal direction X and is fixed to the main portion 52 and the front end portion 12 </ b> A of the absorbent chassis 12. Between the main body portion 52 and the extending portion 53 of the front waist sheet 50, a plurality of string-shaped or strand-shaped front waist elastic bodies 55 extending in the transverse direction X are attached so as to be contracted in an extended state.

  A front auxiliary seat 51 that can be expanded and contracted in the lateral direction X is disposed in a portion of the front waist sheet 50 closer to the crotch region 15 than the front waist elastic body 55. The front auxiliary sheet 51 is positioned on the skin facing surface side, and is fixed to a part of the front end portion 12A and the main body portions 52 positioned on both sides thereof so as to cover the front end portion 12A of the absorption chassis 12. The front auxiliary sheet 51 is formed from a fiber nonwoven fabric made of elastomer fibers. Since the front auxiliary sheet 51 is formed from a stretchable fiber nonwoven fabric, the skin contact is better than when it is formed from a non-stretchable fiber nonwoven fabric, and the wearing feeling is excellent.

  The rear waist panel 18 is in a stretched state between a rear waist sheet 60 composed of an inner sheet 61 positioned on the skin facing surface side and an outer sheet 62 positioned on the non-skin facing surface side, and the inner and outer sheet 61, 62. A plurality of string-like or strand-like rear lower waist elastic bodies 63 extending in the transverse direction X are fixed so as to be shrinkable. The rear waist region 14 includes a base sheet 70 that is fixed to the outer end portion of the rear waist panel 18 in a state of being bent in a Z-shaped cross section.

<Base sheet>
5 and 6A, the base sheet 70 has a longitudinal direction Y between an inner end edge 70a and an outer end edge (rear waist opening edge 14b) extending in the lateral direction X, and the inner and outer end edges 14b, 70a. A horizontally long rectangular shape defined by both side edges 70c extending to the first surface 80A (skin facing surface) and a second surface 80B (non-skin facing surface) located on the opposite side thereof, parallel to the lateral direction X A first folding line 71 and a second folding line 72 extending. The base sheet 70 includes an outer end portion 73 positioned between the outer end edge 14b and the first folding curve 71, an intermediate portion 74 positioned between the first folding curve 71 and the second folding curve 72, It has an inner end portion 75 located between the double folding line 72 and the inner end edge 70a. On the second surface 80B side of the outer end portion 73, a pair of first joining regions 81A located facing the lateral direction X are located, and the first non-joining region 81B is located between them. On the first surface 80A side of the intermediate portion 74, a pair of second joining regions 82A located facing the lateral direction X are located, and a second non-joining region 82B is located between them.

  The base sheet 70 extends between the inner and outer surface sheets 76 and 77 extending in the lateral direction X at the outer end 73 and the inner surface sheet 76 positioned on the skin facing surface side, the outer surface sheet 77 positioned on the non-skin facing surface side. A plurality of string-like or strand-like rear upper waist elastic bodies 64 fixed so as to be contractible in the state, and an intermediate portion 74 extending in the lateral direction X, and being fixed so as to be contractable in an extended state between the inner and outer surface sheets 76 and 77 A plurality of string-like or strand-like pocket elastic bodies 49.

  Referring to FIGS. 6B and 6C, in the base sheet 70, the second surface 80B side of the outer end portion 73 and the second surface 80B side of the intermediate portion 74 are in contact with each other along the first folding curve 71. Bending so that the first surface 80A side of the intermediate portion 74 and the first surface 80A side of the inner end portion 75 are in contact with each other along the second folding line 72. By doing so, the state bent in the substantially Z shape in the longitudinal cross-section is maintained.

  The first joining area 81A and the second joining area 82A have substantially the same dimension in the transverse direction X, and the transverse direction X of the first and second non-joining areas 81B and 82B located between them. The dimensions are also substantially the same, and the first and second non-joining areas 81B and 82B are positioned so as to overlap each other in a plan view of the diaper 10. The first and second joining regions 81A and 82A are formed by, for example, a known heat welding means such as a known adhesive such as a hot melt adhesive or a heat seal.

  Referring to FIG. 6D, the base sheet 70 has the outer end portion 73 contracted by the rear upper waist elastic body 64 and is bent along the first and second folding curves 71 and 72 to be first and second. A pair of third parts extending in the longitudinal direction Y along the side edge of the second non-joining region 82B from the joined state via the second joining regions 81A, 82A through the laminated intermediate portion 74 and the inner end portion 75. By further bending along the folding line 79A and the fourth folding line (mountain folding curve) 79B, the portion excluding the outer end 73 has a substantially Ω-shaped cross section. The dimension in the lateral direction X of the base sheet 70 in the folded state is substantially the same as the dimension in the lateral direction X of the rear waist region 14 in a natural state (a state in which each elastic body is not stretched).

  Referring to FIGS. 4 and 7 to 9, the absorbent chassis 12 is connected via a joint region (third joint region) 83 in which the base sheet 70 bent in a substantially Ω cross section has a concave shape toward the horizontal axis Q. And fixed to the rear waist panel 18. In this way, the base sheet 70 is fixed in a state where it is folded by a plurality of folding lines, so that the outer end 73 forms a pocket by the belt-like region 23 of the rear waist region 14 and the second non-joining region 82B of the intermediate portion 74. The pocket outer area 43 is formed by the inner area 42 and the portion of the inner end 75 facing the second non-bonding area 82B. Further, the both sides of the pocket inner area 42 and the both sides of the pocket outer area 43 are joined to each other via the second joining area 82A.

  In the present embodiment, the pocket 30 and the like are formed by fixing the base sheet 70 formed separately to the rear waist sheet 60. However, as long as the technical effect of the present invention is exhibited, the rear waist sheet 60 and the base sheet are formed. 70 may be formed as an integral sheet, or the band-shaped region 23 is formed of the same sheet member as the rear waist sheet 60, and a separate sheet member is fixed to the band-shaped region 23 to form the pocket 30. Also good. In addition, the base sheet 70 may be formed of a single elastic nonwoven fabric sheet, and an elastic stretchable nonwoven fabric sheet is disposed between the inner and outer sheets 76 and 77 instead of the rear upper waist elastic body 64. May be. Therefore, in this specification, for example, “the pocket inner region 42 is connected to the inner end 41a of the central portion 41 of the belt-shaped region 23” means that the central portion 41 and the pocket inner region 42 are formed by the same sheet member. And the case where they are bent at the bent portion 31 and the case where they are formed from separate sheet members and both the sheet members are connected at the bent portion 31. Moreover, the sheet | seat member which forms the absorption chassis 12 is extended back, and a back waist panel and the part extended further back can also be bent, and a pocket can also be formed.

<Absorption chassis>
The absorption chassis 12 has a rectangular shape and includes a front end portion 12A, a rear end portion 12B, and an intermediate portion 12C located between the front and rear end portions 12A and 12B. The absorbent chassis 12 is located on the skin-facing surface side, and is a liquid-impervious body-side liner 84 made of a fiber nonwoven fabric having liquid permeability, a liquid-absorbing absorbent body 85, and a liquid-impervious covering the entire bottom surface of the absorbent body 85. And a liquid-impervious or hardly liquid-permeable covering sheet 87 that forms the entire non-skin-opposing surface of the absorbent chassis 12.

  The absorbent body 85 is composed of a core material formed from a mixture of fluff pulp and absorbent polymer particles, and a liquid diffusible core wrap sheet formed from tissue paper or the like that encapsulates the entire core material. The absorbent body 85 has a rectangular shape defined by front and rear end edges extending in the lateral direction X and both side edges extending in the vertical direction Y between the front and rear end edges, and extends from the crotch region 15 toward the rear waist region 14. A concave guide groove 80 is provided. In the guiding groove 80, the absorbent core of the absorbent body 85 is not present or has a smaller mass than other parts, and is a groove having a notch or a bottom. In the present embodiment, the guide groove 80 has a bottom with a small thickness dimension compared to other portions. In addition, the guide groove 80 is a single line, but a plurality of lines may be formed.

  The covering sheet 87 has both side portions located on the outer side in the lateral direction X of both side edges of the leak-proof sheet 86. Both side portions are bent inward (to the absorbent body 85 side) along a bending line extending in the longitudinal direction Y adjacent to both side edges of the leakproof sheet 86 and fixed to the body side liner 84. The both side portions are fixed to the body side liner 84 and fixed to both ends in the longitudinal direction Y. The proximal edge portion fixed to both side edges of the body side liner 84 and the longitudinal direction Y between the both end fixed portions. And a distal edge (free edge) 88 extending in the longitudinal direction Y in parallel with the proximal edge. The distal edge 88 has a sleeve shape formed by bending and fixing the outer edge portion of the covering sheet 87, and a plurality of string-like or strand-like cuff elasticity extending in the longitudinal direction Y is provided at the edge portion. The body 89 is disposed so as to be retractable in the extended state. When the cuff elastic body 89 contracts, the edge portion is separated from the body side liner 84 toward the wearer's body side to form a barrier cuff, and fits the wearer's thigh to prevent leakage of excrement. . In addition, a plurality of string-like or strand-like leg elastic bodies 90 extending in the longitudinal direction Y are fixed to both sides of the covering sheet 87 so as to be contractable in an extended state.

  The leg elastic body 90 is formed of a plurality of elastic materials spaced apart by a given dimension in the lateral direction X, and forms an elastic band having elasticity in a certain width. It is possible to effectively prevent side leakage of excrement by fitting in a planar shape. The rear end portion of the leg elastic body 90 overlaps with the rear lower waist elastic body 63 in the rear waist region 14 in plan view. An imaginary elastic band surrounding the thigh of the wearer by overlapping the leg elastic region where the contracting force of the leg elastic body 90 acts and the waist elastic region where the contracting force of the rear lower waist elastic body 63 acts in plan view. Is formed.

  Referring to FIG. 4, both side fixing portions 45 of the pocket inner and outer regions 42 and 43 are fixed to the belt-like region 23 and the rear end portion 12 </ b> B of the absorbent chassis 12 through a joint region 83 having a concave shape toward the horizontal axis Q. The rear end portion 12B of the absorbent chassis 12 is not fixed at a portion between the distal edge portions 88 of the covering sheet 87. Since the base sheet 70 has such a joining mode, a rear space R for accommodating and holding excrement moved to the rear waist region 14 is provided between the non-joined region and the rear end portion 12B of the absorption chassis 12. Defined.

  In general, relatively young infants excrete fluid soft stool in various situations such as breastfeeding and posture held by the mother, so loose stool leaks from the rear waist opening or the back of the wearer There is a risk that the loose stool will be pressed against and dirty. In addition, while the diaper 10 is worn, in the front waist region 13, it may be possible that a space capable of accommodating excrement is formed between the body and the waist opening when the waist opening slides down. In the waist region 14, it is difficult to form such a gap because it has an outer shape in which the buttock protrudes, and in order to temporarily store and hold excrement, as in the diaper 10 according to the present embodiment, in a worn state. It is necessary to intentionally form a pocket space S that exhibits a three-dimensional shape.

  In the conventional diaper, in order to solve such a problem, a configuration in which excrement is stored in a storage space extending downward or rearward in the front and rear waist region and / or the crotch region is disclosed. Thus, the diaper 10 provided with the pocket 30 that opens downward (toward the horizontal axis Q) and extends upward on the back surface of the rear waist region is not known.

  In the present embodiment, the belt-like region 23 and the pocket 30 are located on the waist opening side of the rear waist region 14, and the belt-like region 23 is fitted to the wearer's body by the extension stress of the rear upper waist elastic body 64. Leakage of excrement that has moved from the crotch region 15 side to the rear waist opening side is prevented, and excreted matter that has been prevented from flowing flows into the pocket space S that protrudes upward and is temporarily accommodated and held. Is done. In this way, by disposing the excrement that has been prevented from moving into the pocket 30 located on the back side of the rear waist region 14, it is possible to suppress discomfort and skin troubles due to the excrement coming into contact with the body. . Since the pocket 30 is not interlocked with the expansion and contraction of the belt-like region 23, there is no possibility that the pocket opening is closed even if the rear waist region 14 is extended. Moreover, since the pocket 30 is located above the upper end part (rear end part) of the absorber 85, the body fluid which is not absorbed by the absorber 85 and moves to the rear waist opening side can be accommodated.

  In addition, a part of the base sheet 70 forming the pocket 30 is joined to the rear waist region 14 via a joining region 83 extending inward in the lateral direction X from the side seam 19, and the base sheet 70 itself is leg elastic body. 90 and the cuff elastic body 89 are located outside the longitudinal direction Y and do not overlap with each other in plan view of the diaper 10. Therefore, even if the contraction force of the leg elastic body 90 or the cuff elastic body 89 indirectly acts on the pocket outer area 43 and a force to pull it downward acts, the pocket outer area 43 is pulled downward. Therefore, there is no possibility that the bent portion 33 collapses and the pocket space S disappears.

  2, 3, and 7 again, when the diaper 10 is not worn, the pocket both side areas 32 of the pocket 30 are bent inward (in the deployed state, toward the vertical axis P side). On the other hand, in the wearing state, the pocket both side regions 32 stand up and the pocket inner region 42 moves in the direction F away from the central portion 41 of the belt-like region 23, and the inclination angle α with the central portion 41 increases. Thus, a pocket space S is formed. On the other hand, in a state where the diaper 10 is not worn, the pocket both side regions 32 are bent, and the center portion 41 of the belt-like region 23 and the pocket inner region 42 come into contact with each other, so that the rear waist Since the region 14 as a whole is more compact and the dimension in the thickness direction Z is smaller than the wearing state, the diaper 10 can be stored and transported conveniently.

  Further, even when the wearer is in a supine state and the body pressure of the wearer is applied to the pocket 30, the pocket side regions 32 are bent and the central portion 41 of the belt-like region 23 and the inside of the pocket Since the region 42 is in contact with each other, the base sheet 70 may be deformed into strain due to body pressure, and there is a risk of giving the wearer a foreign body feeling caused by a partial thickness change in the rear waist region 14. Absent. Since the pocket both side areas 32 can bend and stretch in the direction approaching and separating from the wearer's body, that is, the thickness direction Z, the direction F in which the pocket both side areas 32 are separated from the body when released from body pressure. Standing up (see FIG. 9), a three-dimensional pocket space S is formed again.

  Therefore, even when the wearer is in a supine state or is held in a state where the back is held by the mother, and the force to press the pocket 30 against the body side repeatedly acts, Since the pocket 30 can exhibit a three-dimensional shape by the flexion and extension movements of the pocket side areas 32, even if it is worn by younger infants who frequently change their posture or repeat frequent loose stools. Soft stool can be reliably accommodated in the pocket space S. Further, in the present embodiment, as described above, the pocket inner area 42 has the required vertical dimension Y, and therefore, the pocket both sides 32 are inclined to the central portion 41 and are rearwardly inclined. And can serve as the top surface of the pocket 30, so that more excrement can be accommodated as compared with a mode in which there is no folding structure on the top surface and the pocket both sides 32 side.

  In the wearing state of the diaper 10, when the belt-like region 23 is extended in the lateral direction X (waist direction), the folding by the pocket both-side regions 32 is released, and the pocket inner region 32 moves toward the belt-like region 23. The space S may disappear and the three-dimensional shape may be damaged. In the present embodiment, the pocket elastic body 49 that can be extended in the lateral direction X is disposed in the pocket inner region 42, whereby the central portion 41 is extended and the force that causes the pocket both side regions 32 to lie down. When the elastic body 49 acts, the elastic body 49 does not contract and maintains the standing state of the pocket side regions 32 and the state in which the pocket inner region 42 is separated from the belt-like region 41 against the force. A three-dimensional shape can be stably exhibited.

  The shrinkage rate in the lateral direction X of the pocket inner region 42 is preferably lower than the shrinkage rate in the lateral direction X of the band-like region 23. In such a case, the amount of contraction in the lateral direction X of the central portion 41 of the belt-shaped region 23 (the length dimension in the lateral direction X of the contracted portion) is in the lateral direction X of the pocket inner region 42 and the pocket outer region 43. Even when the belt-like region 23 is expanded by a predetermined magnification in the lateral direction X as compared with the natural state (when contracted), the pocket side regions 32 are not completely laid down, and the pocket 30 A three-dimensional shape can be maintained.

<Measurement method of shrinkage rate of each region>
First, in the unfolded state of the diaper 10, a stacked region (a region surrounded by a thick frame K in FIG. 4) of the pocket outer region 43 and the belt-like region 23 that overlaps with the pocket inner region 42 in a plan view has a predetermined width (for example, The dimensions of each sample were measured according to the following procedure as a sample cut out with a vertical dimension of 15 mm × a horizontal dimension of 100 mm. i) grip one end of the opposite ends in the lateral direction X of each sample, ii) attach a clip and a weight to the other end, and each sample is perpendicular to the floor without being twisted Suspended to be. In such a state, marks are attached with two parts of the elastic element (a predetermined part of the sheet in the case where there is no elastic element) that are spaced apart from each other in the lateral direction, and the distance between the marks is measured. And it was set as the dimension (L1) at the time of contraction of each sample. The weight of the weight can be adjusted as long as the elastic element arranged in each sample is not stretched. In this measurement, a weight of about 5.0 g was used. iii) Next, remove the clip and weight from each sample and extend it in the lateral direction X until there is no gathering due to elastic elements on the surface, then measure the distance between the two marks, L2). The dimensions L1 and L2 measured by this measurement method were applied to the formula of shrinkage rate = ((L2−L1) / L2) × 100 (%) to calculate the shrinkage rate (%) of each sample.

  The inner end portion 41 a of the central portion 41 that is continuous with the pocket inner region 42 is located on the outer side in the vertical direction Y with respect to the central portion in the vertical direction Y of the rear waist region 14. Therefore, since the center part 41 is fitted to the body above the crack (crack) in the wearer's buttocks, the center part 41 is located between the center part 41 and the body as compared with the case where the center part 41 is brought into contact with the concave crack. It is difficult for gaps to occur in the sac, and leakage of excreta can be effectively suppressed. Although not shown, in the front waist region 13, a pocket that can be opened downward may be disposed similarly to the rear waist region 14 in order to temporarily store and hold urine.

  In the present embodiment, the rear upper waist elastic body 64 is arranged substantially evenly in the entire dimension in the longitudinal direction Y of the belt-like region 23. The contraction force of the rear upper waist elastic body 64 may be substantially constant, or may be different from each other. For example, the contraction force of the rear upper waist elastic body 64 can be adjusted so that the contraction force of the lower end part (inner end part) 41a is higher than the other parts excluding the lower end part. That is, by making the contraction force of the rear upper waist elastic body 64 arranged at the lower end portion 41a higher than that of the other rear upper waist elastic bodies 64 arranged other than the lower end portion 41a, the body in the vicinity of the opening of the pocket 30 can be obtained. Thus, the excrement can be surely flowed into the pocket space S.

  Further, in the rear waist region 14, a concave guide groove 80 extending from the crotch region 15 toward the rear waist region 14 is formed in the absorber 85. Even when a force such as body pressure is applied to the vicinity of the opening of the pocket 30 to reduce the opening, the loose stool excreted on the absorbent body 85 passes along the guide groove 80 in the pocket space. Since it is guided to S, the excrement can be accommodated and held in the pocket space S. In order to facilitate the excretion of the excrement into the pocket space S, the guide groove 80 is formed from the position on the crotch region 15 side with respect to the rear waist elastic bodies 63 and 64 located between the side seams 19 of the rear waist region 14. 14 is preferably extended to 14, and does not necessarily extend to the rear edge of the absorbent body 85. Further, since the absorber 85 becomes thin in the guide groove 80, the step between the lower end portion of the pocket forming portion 20 located above the portion becomes smaller, and thus excrement flows into the pocket space S more. It can be said that it becomes easy.

<Modification 1>
FIG. 10 is a view similar to FIG. 8 showing an example of a modification of the diaper 10 according to the present embodiment.

  Referring to FIG. 10, a rear auxiliary sheet 58 having elastic stretchability is disposed on the skin facing surface side of the belt-like region 23. When the belt-like region 41 is fitted to the body only by the contraction force of the string-like or strand-like rear upper waist elastic body 64, there is a possibility that a relatively large gather that may cause a leak of the body is formed. However, by arranging the rear auxiliary sheet 58 on the skin facing surface side of the belt-like region 41, not only the touch is improved, but also a relatively small gather unique to the elastic sheet is formed on the surface. It is possible to prevent loose stool from leaking out of the waist opening.

  Further, the rear auxiliary seat 58 may be made of a sheet material that is elastic or inelastic, relatively bulky, and highly cushioning. In such a case, in order to improve the fit of the rear waist region 14, even if the contraction force of the rear upper waist elastic body 64 is made relatively high, it is positioned at least on the skin facing surface side of the belt-like region 23. After that, the auxiliary sheet 58 exhibits a cushion function and there is no possibility of making a gather mark on the body.

<Modification 2>
FIG. 11 is a view similar to FIG. 8 showing an example of a modification of the diaper 10 according to the present embodiment.

  Referring to FIG. 11, in this modification, the belt-like region 23 is formed from the base sheet 70, and the pocket inner and outer regions 42 and 43 are formed from the rear waist sheet 60. The rear waist sheet 60 is joined to the base sheet 70 via the joining area 92 in a state where the one end edge 60 a is bent. The joining area 92 includes, for example, a hot melt adhesive applied to the opposing surfaces of both sheets 60 and 70 and various known heat welding means. As described above, the belt-like region 23 and the pocket inner and outer regions 42 and 43 may be formed from separate sheet members, respectively, or the pocket inner region 42 and the pocket outer region 43 may be formed from separate sheet members. It may be formed. The inner end portion 93 of the base sheet 70 extends inward (downward) in the longitudinal direction Y from the joining area 92. The base sheet 70 that forms the belt-like region 23 extends below the joining region 92, so that the extended lower part functions as a barrier that prevents excrement that has flowed into the pocket space S from moving to the body side. Yes.

<Modification 3>
FIG. 12 is a view similar to FIG. 3 showing an example of a modification of the diaper 10 according to the present embodiment.

  Referring to FIG. 12, in this modification, a liquid-impermeable sheet 94 is disposed in the belt-like region 41. The sheet 94 is fixed between inner and outer surface sheets 76 and 77 forming the base sheet 70. By disposing the liquid-impervious sheet 94 in the belt-like region 41, it is possible to effectively prevent leakage of excrement that has moved to the rear waist opening side without flowing into the pocket space S.

<Modification 4>
FIG. 13 is a view similar to FIG. 8 showing an example of a modification of the diaper 10 according to the present embodiment.

  Referring to FIG. 13, in the present modification, the leak-proof sheet 86 extends from the pocket outer region 43 to the bent portion 33, and further extends from the bent portion 33 to the pocket inner region 42. Only the base sheet 70 made of a fiber nonwoven fabric cannot sufficiently retain soft stool with high fluidity and may ooze out to the outer surface thereof. By being located in the pocket 30, it is excellent in leakproofness and can prevent exudation of such soft stool. Moreover, the leak-proof sheet 86 has a dimension in the lateral direction X that is larger than the dimension in the lateral direction X of the pocket opening of the pocket 30. Therefore, exudation of excrement entering the pocket space S from the pocket opening can be effectively prevented.

  For each constituent material constituting the diaper 10 of the present invention, various known materials that are usually used in this kind of field can be used without limitation, unless otherwise specified. In addition, in the present specification, the basic structure of the diaper 10 has been illustrated in which the front and rear waist regions 13 and 14 are formed from separate front and rear waist panels 17 and 18, but the front and rear waist regions 13 and 14 and the crotch region 15 may be a structure formed by a continuous panel, and it is not a pull-on type in which both side edges of the front and rear waist regions 13 and 14 are connected in advance, but an open type diaper that connects them with a tape fastener. There may be. In addition, terms such as “first” to “third” used in this specification are simply used to distinguish similar elements, positions, and the like.

The disclosure relating to the present invention described above can be organized into at least the following matters.
It has an up-down direction and a horizontal direction in the wearing state, and a front-rear direction intersecting them, a skin contact surface and a non-skin contact surface on the opposite side, a front waist region, a rear waist region, and the front and rear waist regions In a disposable diaper including a crotch region positioned between and an absorbent body extending from the crotch region to the front and rear waist region,
The rear waist region is located on the skin contact surface side and extends in the lateral direction, and is located on the non-skin contact surface side, and the belt-like region and the front-rear direction in a central portion in the lateral direction. A pocket forming portion having a pocket that can be opened downward facing each other in
The pocket forming portion includes a both-side fixed portion fixed to the belt-shaped region, a pocket inner region extending upward from a portion connected to the belt-shaped region between the both-side fixed portions, and a bent portion extending in the lateral direction. A pocket that extends to the crotch region facing the pocket inner region in the front-rear direction and has a pocket outer region located on the extension of the absorber, and the pocket inner region has a pocket extending in the direction X An elastic body is disposed, and the pocket outer region has a portion bent in the lateral direction located on an extension of both side edges of the absorber.

The disposable diaper according to the present invention disclosed in the above paragraph 0058 can include at least the following embodiments.
(1) The pocket forming portion has pocket both sides formed from both sides of the pocket inner and outer regions, and the pocket elastic body is disposed between the pocket both sides, and the pocket elastic body contracts. The both sides of the pocket are bent inward in the lateral direction.
(2) The pocket elastic body extends in the lateral direction between the both side fixing portions of the pocket forming portion.
(3) The belt-like region can be elastically expanded and contracted in the lateral direction.
(4) The shrinkage rate in the lateral direction of the belt-like region is higher than the shrinkage rate in the lateral direction of the pocket inner and outer regions.
(5) In the rear waist region, a guide groove extending from the crotch region to the rear waist region is formed in the old main body.
(6) The belt-like region and the pocket forming portion are located on the waist opening side of the rear waist region.
(7) A sheet having elastic stretchability is disposed on the skin facing surface side of a portion of the belt-shaped region facing the pocket inner region in the front-rear direction.
(8) The belt-like region has upper and lower ends opposed to each other in the vertical direction, and the contraction force of the lower end is higher than the contraction force of other portions other than the lower end.
(9) The liquid absorbent sheet further includes a liquid-impermeable sheet that extends from the upper end portion of the absorbent body to the bent portion and that has a lateral dimension larger than the lateral dimension of the pocket opening.

DESCRIPTION OF SYMBOLS 10 Disposable diaper 13 Front waist area 14 Rear waist area 14b Open edge 15 of rear waist area Crotch area 23 Band area 30 of rear waist area Pocket 32 Pocket both sides area 33 Folding part 41 Central part 41a of a belt area End portion 42 Pocket inner region 43 Pocket outer region 49 Pocket elastic body 58 Rear auxiliary sheet 80 Guide groove 85 Absorber 85a Absorber side edge portion 94 Impervious sheet X Horizontal direction Y Vertical direction

The disposable Te diaper according to the present invention, the rear waist region has a strip-shaped region extending in the transverse direction located in the skin contact surface side, located on the non-skin contact surface side, the lateral A pocket forming portion having a pocket that can be opened downward facing the belt-like region in the front-rear direction at the center portion, and the pocket forming portion includes both side fixing portions fixed to the belt-like region, and the both sides A pocket inner region extending upward from a portion connected to the belt-shaped region between the fixed portions, and extending to the crotch region opposite to the pocket inner region in the front-rear direction via the laterally bent portion; and A pocket outer region located on the extension of the absorber, and a pocket elastic body extending in the lateral direction is disposed in the pocket inner region, and the pocket outer region is an extension of both side edges of the absorber. That having a said horizontal bent portion in the direction X to position.

Referring to FIGS. 1 and 4, the diaper 10 includes a non-skin facing surface that faces the skin facing surface and therewith an annular elastic waist panel 11 extending waist direction, intake Carabid attached to the elastic waist panel 11 The chassis 12 includes a front waist region 13, a rear waist region 14, and a crotch region 15 located between the front and rear waist regions 13 and 14. The diaper 10 is formed symmetrically with respect to the longitudinal axis P, and the elastic waist panel 11 includes a front waist panel 17 located in the front waist region 13 and a rear waist panel 18 located in the rear waist region 14. . The absorption chassis 12 includes an absorber 85 having both side edges 85c extending in the longitudinal direction Y.

2 and 3, when the diaper 10 of the present embodiment is worn and in a natural state, the pocket inner region 42 contracts in the lateral direction X to form a plurality of gathers 78, thereby forming the pocket inner region 42. The dimension in the lateral direction X is smaller than the dimension in the lateral direction X of the pocket outer side region 43. Moreover, the pocket outer side area | region 43 exists in the position which extended the existence area | region of the absorber 85 of the crotch area 15 to the strip | belt-shaped area 23 side, and the pocket both-side area | region 32 extends the both-sides edge 85c of the absorber 85 to the strip | belt-shaped area 23 side. Bend inward at the part where it is. The difference between the dimension in the lateral direction X of the pocket inner area 42 and the dimension in the lateral direction X of the pocket outer area 43 due to the contraction action of the pocket elastic body 49 and the extension of both side edges 85c of the absorbent body 85 in the pocket both side areas 32. Due to the inward bending, the pocket side regions 32 are folded so as to be able to extend inward in the lateral direction X (toward the vertical axis P).

Therefore, even when the wearer is in a supine state or is held in a state where the back is held by the mother, and the force to press the pocket 30 against the body side repeatedly acts, Since the pocket 30 can exhibit a three-dimensional shape by the flexion and extension movements of the pocket side areas 32, even if it is worn by younger infants who frequently change their posture or repeat frequent loose stools. Soft stool can be reliably accommodated in the pocket space S. In the present embodiment, as described above, the pocket inner area 42 has a required vertical dimension Y, and therefore, the pocket both-side areas 32 are inclined to the central portion 41 and are rearwardly inclined. And can serve as the top surface of the pocket 30, so that more excrement can be accommodated as compared with a mode in which there is no folding structure on the top surface and the pocket both sides 32 side.

In the wearing state of the diaper 10, when the belt-like region 23 is extended in the lateral direction X (waist direction), the folding by the pocket both-side regions 32 is released, and the pocket inner region 32 moves toward the belt-like region 23. The space S may disappear and the three-dimensional shape may be damaged. In the present embodiment, the pocket elastic body 49 that can be extended in the lateral direction X is disposed in the pocket inner region 42, whereby the central portion 41 is extended and the force that causes the pocket both side regions 32 to lie down. When the elastic body 49 acts, the elastic body 49 does not contract and maintains the standing state of the pocket side regions 32 and the state in which the pocket inner region 42 is separated from the belt-like region 23 against the force. A three-dimensional shape can be stably exhibited.

Referring to FIG. 10, a rear auxiliary sheet 58 having elastic stretchability is disposed on the skin facing surface side of the belt-like region 23. When the band-like region 23 is fitted to the body only by the contraction force of the string-like or strand-like rear upper waist elastic body 64, there is a possibility that a relatively large gather that may cause a leak of the body is formed. However, by arranging the rear auxiliary sheet 58 on the skin facing surface side of the belt-like region 23 , not only the touch is improved, but a relatively small gather unique to the elastic sheet is formed on the surface. It is possible to prevent loose stool from leaking out of the waist opening.

Referring to FIG. 12, in this modification, a liquid-impermeable sheet 94 is disposed in the belt-like region 23 . The sheet 94 is fixed between inner and outer surface sheets 76 and 77 forming the base sheet 70. By disposing the liquid-impermeable sheet 94 in the belt-like region 23 , it is possible to effectively prevent leakage of excrement that has moved to the rear waist opening side without flowing into the pocket space S.

The disclosure relating to the present invention described above can be organized into at least the following matters.
It has an up-down direction and a horizontal direction in the wearing state, and a front-rear direction intersecting them, a skin contact surface and a non-skin contact surface on the opposite side, a front waist region, a rear waist region, and the front and rear waist regions In a disposable diaper including a crotch region positioned between and an absorbent body extending from the crotch region to the front and rear waist region,
The rear waist region is located on the skin contact surface side and extends in the lateral direction, and is located on the non-skin contact surface side, and the belt-like region and the front-rear direction in a central portion in the lateral direction. A pocket forming portion having a pocket that can be opened downward facing each other in
The pocket forming portion includes a both-side fixed portion fixed to the belt-shaped region, a pocket inner region extending upward from a portion connected to the belt-shaped region between the both-side fixed portions, and a bent portion extending in the lateral direction. A pocket extending in the front-rear direction and facing the crotch region, and having a pocket outer region located on the extension of the absorber, and the pocket inner region has a pocket extending in the lateral direction. An elastic body is disposed, and the pocket outer region has a portion bent in the lateral direction located on an extension of both side edges of the absorber.

The disposable diaper according to the present invention disclosed in the above paragraph 0058 can include at least the following embodiments.
(1) The pocket forming portion has pocket both sides formed from both sides of the pocket inner and outer regions, and the pocket elastic body is disposed between the pocket both sides, and the pocket elastic body contracts. The both sides of the pocket are bent inward in the lateral direction.
(2) The pocket elastic body extends in the lateral direction between the both side fixing portions of the pocket forming portion.
(3) The belt-like region can be elastically expanded and contracted in the lateral direction.
(4) The contraction rate in the lateral direction of the belt-like region is higher than the contraction rate in the lateral direction of the pocket inner / outer region.
(5) In the rear waist region, a guide groove extending from the crotch region to the rear waist region is formed in the absorber .
(6) The belt-like region and the pocket forming portion are located on the waist opening side of the rear waist region.
(7) A sheet having elastic stretchability is disposed on the skin facing surface side of a portion of the belt-shaped region facing the pocket inner region in the front-rear direction.
(8) The belt-like region has upper and lower ends opposed to each other in the vertical direction, and the contraction force of the lower end is higher than the contraction force of other portions other than the lower end.
(9) The liquid absorbent sheet further includes a liquid-impermeable sheet that extends from the upper end portion of the absorbent body to the bent portion and that has a lateral dimension larger than the lateral dimension of the pocket opening.

10 disposable Te diaper 13 central portion 41a swath swath 30 pocket 32 pockets each side region 33 bent part 41 swath of the opening edge 15 waist region after the crotch region 23 of the front rear waist region 14 waist region 14b rear waist region Inner end portion 42 Pocket inner region 43 Pocket outer region 49 Pocket elastic body 58 Rear auxiliary sheet 80 Guide groove 85 Absorber 85a Absorber side edge portion 94 Impervious sheet X Horizontal direction Y Vertical direction

In the disposable diaper according to the present invention, the rear waist region is located on the skin contact surface side and extends in the lateral direction, and is located on the non-skin contact surface side, and the central portion in the lateral direction. A pocket forming portion having a pocket that can be opened downward facing the belt-shaped region in the front-rear direction, and the pocket forming portion is formed between the both-side fixed portions fixed to the belt-shaped region and the both-side fixed portions. A pocket inner region extending upward from a portion connected to the belt-like region, a pocket extending in the lateral direction, the pocket inner region facing the pocket inner region in the front-rear direction, and extending to the crotch region, and the absorber pocket outer region extending on an extension of, and a pocket on both sides regions which are formed from both sides of the outer zone pocket, wherein the pocket inner region, the pocket extending into said lateral Sex body is disposed, is retracted said lateral dimension of said pocket inner region by the contraction of the pocket elastic body, said pocket sides region is bent inwardly of the lateral.

The disclosure relating to the present invention described above can be organized into at least the following matters.
It has an up-down direction and a horizontal direction in the wearing state, and a front-rear direction intersecting them, a skin contact surface and a non-skin contact surface on the opposite side, a front waist region, a rear waist region, and the front and rear waist regions In a disposable diaper including a crotch region positioned between and an absorbent body extending from the crotch region to the front and rear waist region,
The rear waist region is located on the skin contact surface side and extends in the lateral direction, and is located on the non-skin contact surface side, and the belt-like region and the front-rear direction in a central portion in the lateral direction. A pocket forming portion having a pocket that can be opened downward facing each other in
The pocket forming portion includes a both-side fixed portion fixed to the belt-shaped region, a pocket inner region extending upward from a portion connected to the belt-shaped region between the both-side fixed portions, and a bent portion extending in the lateral direction. A pocket outer region that extends to the crotch region so as to face the pocket inner region in the front-rear direction, and is located on the extension of the absorber, and both pocket regions formed from both sides of the pocket inner and outer regions A pocket elastic body extending in the lateral direction is disposed in the pocket inner area, and the lateral dimension of the pocket inner area is reduced by contraction of the pocket elastic body, A zone is folded inwardly in the lateral direction.

The disposable diaper according to the present invention disclosed in the above paragraph 0058 can include at least the following embodiments.
(1) The pocket both side areas are bent inward in the lateral direction from the extended portions of both side edges of the absorber .
(2) The pocket elastic body extends in the lateral direction between the both side fixing portions of the pocket forming portion.
(3) The belt-like region can be elastically expanded and contracted in the lateral direction.
(4) The shrinkage rate in the lateral direction of the belt-like region is higher than the shrinkage rate in the lateral direction of the pocket inner and outer regions.
(5) In the rear waist region, a guide groove extending from the crotch region to the rear waist region is formed in the absorber.
(6) The belt-like region and the pocket forming portion are located on the waist opening side of the rear waist region.
(7) A sheet having elastic stretchability is disposed on the skin facing surface side of a portion of the belt-shaped region facing the pocket inner region in the front-rear direction.
(8) The belt-like region has upper and lower ends opposed to each other in the vertical direction, and the contraction force of the lower end is higher than the contraction force of other portions other than the lower end.
(9) The liquid absorbent sheet further includes a liquid-impermeable sheet that extends from the upper end portion of the absorbent body to the bent portion and that has a lateral dimension larger than the lateral dimension of the pocket opening.

Claims (10)

It has an up-down direction and a horizontal direction in the wearing state, and a front-rear direction intersecting them, a skin contact surface and a non-skin contact surface on the opposite side, a front waist region, a rear waist region, and the front and rear waist regions In a disposable diaper including a crotch region positioned between and an absorbent body extending from the crotch region to the front and rear waist region,
The rear waist region is located on the skin contact surface side and extends in the lateral direction, and is located on the non-skin contact surface side, and the belt-like region and the front-rear direction in a central portion in the lateral direction. A pocket forming portion having a pocket that can be opened downward facing each other in
The pocket forming portion includes a both-side fixed portion fixed to the belt-shaped region, a pocket inner region extending upward from a portion connected to the belt-shaped region between the both-side fixed portions, and a bent portion extending in the lateral direction. A pocket that extends to the crotch region facing the pocket inner region in the front-rear direction and has a pocket outer region located on the extension of the absorber, and the pocket inner region has a pocket extending in the direction X The said diaper characterized by the above-mentioned. The elastic body is arrange | positioned and the said pocket outer side area | region has the part bent in the said horizontal direction located on the extension of the both-sides edge part of the said absorber.   The pocket forming portion has pocket both sides formed from both sides of the pocket inner and outer regions, and the pocket elastic body is disposed between the pocket both sides, and the pocket elastic body contracts to reduce the pocket. The diaper according to claim 1, wherein both side regions are bent inward in the lateral direction.   The diaper according to claim 1, wherein the pocket elastic body extends in the lateral direction between the both side fixing portions of the pocket forming portion.   The diaper according to any one of claims 1 to 3, wherein the band-like region is elastically stretchable in the lateral direction.   The diaper according to claim 4, wherein a shrinkage rate in the lateral direction of the belt-like region is higher than a shrinkage rate in the lateral direction of the pocket inner and outer regions.   The diaper according to any one of claims 1 to 5, wherein a guide groove extending from the crotch region to the rear waist region is formed in the old main body in the rear waist region.   The diaper according to any one of claims 1 to 6, wherein the belt-like region and the pocket forming portion are located on a waist opening side of the rear waist region.   The diaper in any one of Claims 1-7 by which the sheet | seat which has elastic elasticity is arrange | positioned in the said skin opposing surface side of the part which opposes the said pocket inner side area | region of the said strip | belt-shaped area in the said front-back direction.   The belt-like region has upper and lower ends opposed to each other in the vertical direction, and the contraction force of the lower end is higher than the contraction force of other portions other than the lower end. Diapers described in.   10. The liquid-impervious sheet according to claim 1, further comprising an impermeable sheet that extends from the upper end of the absorbent body to the bent portion and that has a lateral dimension larger than the lateral dimension of the pocket opening. Crab diapers.

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