WO2016051938A1 - Disposable diaper - Google Patents

Disposable diaper Download PDF

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Publication number
WO2016051938A1
WO2016051938A1 PCT/JP2015/070803 JP2015070803W WO2016051938A1 WO 2016051938 A1 WO2016051938 A1 WO 2016051938A1 JP 2015070803 W JP2015070803 W JP 2015070803W WO 2016051938 A1 WO2016051938 A1 WO 2016051938A1
Authority
WO
WIPO (PCT)
Prior art keywords
pocket
region
rear waist
lateral direction
waist
Prior art date
Application number
PCT/JP2015/070803
Other languages
French (fr)
Japanese (ja)
Inventor
秀晃 槇
瀧野 俊介
井上 拓也
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Publication of WO2016051938A1 publication Critical patent/WO2016051938A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs

Definitions

  • the present invention relates to a disposable diaper.
  • 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.
  • 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.
  • 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
  • the present invention has a vertical direction and a horizontal direction and a front-rear direction intersecting them in a worn state, a skin facing surface and a non-skin facing surface on the opposite side, and a front waist region.
  • the present invention relates to a disposable diaper including 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.
  • the disposable diaper according to the present invention further includes the following configuration.
  • the rear waist region is located on the skin facing surface side and extends in the lateral direction, is located on the non-skin facing surface side, and the skin contact region and the skin in the central portion in the lateral direction
  • a pocket forming portion having a pocket that can be opened downward while facing each other in the front-rear direction.
  • the pocket forming portion includes both side fixing portions fixed to the skin contact region, a pocket inner region extending upward from a portion connected to the skin contact region between the both side fixing portions, and a bending extending in the lateral direction.
  • a pocket outer region that extends to the crotch region opposite to the pocket inner region in the front-rear direction via a portion and is positioned on the extension of the absorber, and the pocket inner region includes the lateral region
  • a pocket elastic body extending in the direction is arranged, and the pocket outer side region has a portion bent in the lateral direction X located on the extension of both side edges of the absorbent body.
  • a pocket forming portion including a pocket that can be opened downward is arranged in the rear waist region, and the pocket opening is opened even when the rear waist region is extended in a worn state. Will not close, and the excrement that moves to the rear waist opening can flow into the pocket to prevent leakage to the outside, and avoid discomfort or skin troubles due to contact of excrement with the skin. Can do.
  • FIG. 1 The rear view of the disposable diaper which concerns on this invention.
  • FIG. 3 is a schematic sectional view taken along line VII-VII shown in FIG. 2.
  • FIG. 2 is a schematic sectional view taken along line VIII-VIII shown in FIG.
  • FIG. 4 is a schematic 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. Sectional drawing similar to FIG. 3.
  • 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.
  • Q in this specification, "it overlaps in the planar view of the diaper 10" means overlapping in the thickness direction Z.
  • the 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 absorption chassis 12 attached to the elastic waist panel 11. And the front waist region 13, the rear waist region 14, and the 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.
  • 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.
  • the diaper 10 is a band-like region (skin located on the skin facing surface side) that is located on the skin facing surface side and extends in the lateral direction X on the waist opening side of the rear waist region 14. 23) and a pocket forming portion 20 provided with a pocket 30 facing the belt-like region 23 in the front-rear direction in the worn state at the central portion in the lateral direction X of the rear waist region 14.
  • 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.
  • 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.
  • the pocket both side regions 32 are formed by overlapping both side portions of the pocket inner and outer regions 42, 43, and both side fixing portions 45 other than the pocket both side regions 32 are both side portions of the belt-like region 23.
  • 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.
  • “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 at least in 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.
  • the pocket elastic body 49 extends in the lateral direction X between the side fixing portions 45.
  • 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.
  • region 43 exists in the position which extended the existence area
  • the pocket both side areas 32 are folded inwardly in the lateral direction X (toward the vertical axis P) by bending in the direction.
  • the pocket both side areas 32 are folded so as to be extendable, the band-like area in the top view of the diaper 10 in a state where the bent portion 31 and the pocket both side areas 32 are slightly developed. 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.
  • 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.
  • the pocket inner area 42 is inclined with respect to the central portion 41, and the inclination angle ⁇ with respect to the central portion 41 increases as it moves rearward. Therefore, as the inclination angle ⁇ 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.
  • 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.
  • 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.
  • 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 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.
  • 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 shrinkable in a state and an inner portion 74 extending in the transverse direction X and fixed in a stretchable manner between the inner and outer surface sheets 76 and 77.
  • 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.
  • 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 portions 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 and 82A through the intermediate portion 74 and the inner end portion 75 stacked.
  • the portion excluding the outer end 73 has a substantially ⁇ -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).
  • the absorption chassis 12 is connected via a joint region (third joint region) 83 in which the base sheet 70 bent in a substantially ⁇ cross section has a concave shape toward the horizontal axis Q. And fixed to the rear waist panel 18.
  • 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.
  • the pocket 30 and the like are formed by fixing the base sheet 70 formed separately to the rear waist sheet 60.
  • 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.
  • 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.
  • 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
  • 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.
  • 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.
  • the guide groove 80 has a bottom with a small thickness dimension compared to other portions.
  • 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. .
  • 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.
  • 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.
  • 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.
  • 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. .
  • 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.
  • 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.
  • the pocket both side areas 32 of the pocket 30 are bent inward (in the deployed state, toward the vertical axis P side).
  • 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 ⁇ with the central portion 41 increases.
  • a pocket space S is formed.
  • the diaper 10 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 belt-like region 23.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • FIG. 10 is a view similar to FIG. 8 showing an example of a modification of the diaper 10 according to the present embodiment.
  • a rear auxiliary sheet 58 having elastic stretchability is disposed on the skin facing surface side of the belt-like region 23.
  • 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.
  • the rear auxiliary sheet 58 is arranged 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.
  • the rear auxiliary seat 58 may be formed of a sheet material that is elastic or inelastic, is relatively bulky, and has a high cushioning property. 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.
  • FIG. 11 is a view similar to FIG. 8 showing an example of a modification of the diaper 10 according to the present embodiment.
  • 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.
  • 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.
  • FIG. 12 is a view similar to FIG. 3 showing an example of a modification of the diaper 10 according to the present embodiment.
  • 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.
  • FIG. 13 is a view similar to FIG. 8 showing an example of a modification of the diaper 10 according to the present embodiment.
  • 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.
  • 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.
  • the constituent materials constituting the diaper 10 of the present invention various known materials that are usually used in this type of field can be used without limitation, unless otherwise specified.
  • 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.
  • 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, and is between the skin facing surface and the non-skin facing surface on the opposite side, the front waist region, the rear waist region, and the front and rear waist regions.
  • a disposable diaper including a crotch region positioned 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 facing surface side and extends in the lateral direction, is located on the non-skin facing surface side, and is opposed to the belt-like region in the front-rear direction in a central portion in the lateral direction.
  • a pocket forming portion having a pocket that can be opened downward 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 includes at least the following embodiment, and the embodiment can be configured singly or in combination.
  • 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.
  • the pocket elastic body extends in the lateral direction between the both side fixing portions of the pocket forming portion.
  • the belt-like region can be elastically expanded and contracted in the lateral direction.
  • 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.
  • a guide groove extending from the crotch region to the rear waist region is formed in the absorber.
  • the belt-like region and the pocket forming portion are located on the waist opening side of the rear waist region.
  • 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.
  • 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.
  • 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.

Abstract

The present invention is a disposable diaper which has, in a rear waist region, a downwardly openable pocket for holding and retaining waste matter which moves toward a waist opening side. In the disposable diaper (10), the rear waist region (14) has a pocket forming part (20) provided with the 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 (skin contact region) (23); a pocket inner-side region (42) which extends between the bilateral fixed parts (45) and above the 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 the horizontal direction (X) and extends toward a crotch region (15), said pocket outer-side region (43) 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).

Description

使い捨ておむつDisposable diapers
 本発明は、使い捨ておむつに関する。 The present invention relates to a disposable diaper.
 従来、排泄物を収容保持するためポケットを備えた使い捨ておむつは公知である。例えば、特許文献1には、クロッチ域を中心に配置された吸液構造体と、前後ウエスト域において肌対向面側に位置し、かつ、吸液構造体の前後端部を被覆するように横断する伸縮性シートとを有し、伸縮性シートと吸液構造体の前後端部との間には、排泄物を収容するためのポケットが画定された使い捨ておむつが開示されている。 Conventionally, disposable diapers having pockets for storing 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.
特開2001-252303号公報JP 2001-252303 A
 特許文献1に開示された発明に係る使い捨ておむつでは、前後ウエスト域においてポケットが画定されていることによって、前後ウエスト域へ移動した排泄物を収容、保持することができる。 In the disposable diaper according to the invention disclosed in Patent Document 1, since the pockets are defined in the front and rear waist regions, excrement moved to the front and rear waist regions can be accommodated and held.
 しかし、おむつの着用状態において、前後ウエスト域がウエスト回り方向へ伸長されるのと連動して伸縮シートが伸長されるので、伸縮シートが吸液構造体の前後端部に密着するようにして着用者の身体にフィットされる。それにより、伸縮シートと前後端部との間に画定されるポケットの開口が閉じたような態様となり、排泄物がポケット内に進入せず、伸縮シート上に移動して着用者の背面が汚れるおそれがある。また、たとえ収容ポケットが形成されたとしても、乳幼児が仰臥や横臥の状態を繰り返すことによって、体圧によってポケット形状が変形されて、排泄物を収容する程度の開口が形成されず、元の形状に戻らないおそれもある。 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.
 本発明の課題は、従来のおむつの改良であって、後ウエスト域において、ウエスト開口側へ移動する排泄物を収容、保持するための下方へ開口可能なポケットを備えた使い捨ておむつの提供にある。 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. .
 前記課題を解決するために、本発明は、着用状態において上下方向及び横方向とそれらに交差する前後方向とを有し、肌対向面及びその反対側の非肌対向面と、前ウエスト域と、後ウエスト域と、前記前後ウエスト域間に位置するクロッチ域と、前記クロッチ域から前記前後ウエスト域へ延びる吸収体とを含む使い捨ておむつに関する。 In order to solve the above 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 facing surface and a non-skin facing surface on the opposite side, and a front waist region. The present invention relates to a disposable diaper including 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.
 本発明に係る使い捨ておむつは、さらに下記構成を含む。前記後ウエスト域は、前記肌対向面側に位置して前記横方向へ延びる肌当接域と、前記非肌対向面側に位置し、前記横方向における中央部において前記肌当接域と前記前後方向において対向して下方へ開口可能なポケットを備えるポケット形成部とを含む。前記ポケット形成部は、前記肌当接域に固定された両側固定部と、前記両側固定部間において前記肌当接域とつながる部分から上方へ延びるポケット内側域と、前記横方向へ延びる折曲部を介して前記ポケット内側域と前記前後方向において対向して前記クロッチ域へ延び、かつ、前記吸収体の延長上に位置するポケット外側域とを有し、前記ポケット内側域には、前記横方向へ延びるポケット弾性体が配置され、ポケット外側域は、吸収体の両側縁部の延長上に位置する前記横方向Xへ折曲された部分を有する。 The disposable diaper according to the present invention further includes the following configuration. The rear waist region is located on the skin facing surface side and extends in the lateral direction, is located on the non-skin facing surface side, and the skin contact region and the skin in the central portion in the lateral direction And a pocket forming portion having a pocket that can be opened downward while facing each other in the front-rear direction. The pocket forming portion includes both side fixing portions fixed to the skin contact region, a pocket inner region extending upward from a portion connected to the skin contact region between the both side fixing portions, and a bending extending in the lateral direction. A pocket outer region that extends to the crotch region opposite to the pocket inner region in the front-rear direction via a portion and is positioned on the extension of the absorber, and the pocket inner region includes the lateral region A pocket elastic body extending in the direction is arranged, and the pocket outer side region has a portion bent in the lateral direction X located on the extension of both side edges of the absorbent body.
 本発明の1つ以上の実施形態に係る使い捨ておむつは、後ウエスト域において、下方へ開口可能なポケットを備えるポケット形成部が配置されており、着用状態において後ウエスト域が伸長されてもポケット開口が閉じることはなく、後ウエスト開口へ移動する排泄物をポケット内に流入させて外部への漏れを防止することができるとともに、肌への排泄物の接触による不快感や肌トラブル等を避けることができる。 In the disposable diaper according to one or more embodiments of the present invention, a pocket forming portion including a pocket that can be opened downward is arranged in the rear waist region, and the pocket opening is opened even when the rear waist region is extended in a worn state. Will not close, and the excrement that moves to the rear waist opening can flow into the pocket to prevent leakage to the outside, and avoid discomfort or skin troubles due to contact of excrement with the skin. Can do.
 図面は、本発明の特定の実施の形態を示し、発明の不可欠な構成ばかりでなく、選択的及び好ましい実施の形態を含む。
本発明に係る使い捨ておむつの背面図。 おむつの非着用状態における後ウエスト域を上方から視た図。 おむつの着用状態における後ウエスト域の斜視図。 各弾性体をおむつの縦方向及び横方向に伸長させた状態における、おむつの一部破断展開図。 おむつの分解斜視図。 (a)ベースシートの展開平面図、(b),(c)ベースシートの折り畳み行程を示す図。(d)ベースシートの折曲状態を示す図。 図2に示すVII-VII線に沿う模式的断面図。 図1に示すVIII-VIII線に沿う模式的断面図。 図3に示すIX-IX線に沿う模式的断面図。 変形例1における図8と同様の断面図。 変形例2における図8と同様の断面図。 変形例3における図3と同様の断面図。 変形例4における図8と同様の断面図。
The drawings illustrate specific embodiments of the invention and include selective and preferred embodiments as well as the essential features of the invention.
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. FIG. 3 is a schematic sectional view taken along line VII-VII shown in FIG. 2. FIG. 2 is a schematic sectional view taken along line VIII-VIII shown in FIG. FIG. 4 is a schematic 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.
 本発明の使い捨ておむつの一例として示すプルオンタイプ(パンツ型)のおむつ10は、縦方向Yと、横方向Xと、それらに直交する厚さ方向(3次元)Zと、着用状態における上下方向とを有し、縦方向Yに沿って延び、その横方向Xの寸法を2等分する縦軸Pと、横方向Xへ沿って延び、その縦方向Yの寸法を2等分する横軸Qとを有する。なお、本明細書において、「おむつ10の平面視において互いに重なる」とは、厚さ方向Zにおいて互いに重なることを意味する。 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.
 図1及び図4を参照すると、おむつ10は、肌対向面及びそれに対向する非肌対向面と、ウエスト周り方向へ延びる環状の弾性ウエストパネル11と、弾性ウエストパネル11に取り付けられた吸収シャーシ12と、前ウエスト域13と、後ウエスト域14と、前後ウエスト域13,14の間に位置するクロッチ域15とを含む。おむつ10は、縦軸Pに関して対称に形成されており、弾性ウエストパネル11は、前ウエスト域13に位置する前ウエストパネル17と、後ウエスト域14に位置する後ウエストパネル18とから構成される。吸収シャーシ12は、縦方向Yへ延びる両側縁85cを有する吸収体85を備える。 1 and 4, the 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 absorption chassis 12 attached to the elastic waist panel 11. And the front waist region 13, the rear waist region 14, and the 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.
 前後ウエスト域13,14は、それぞれ、横方向Xへ延びる内端縁13a,14aと、縦方向Yにおいて内端縁13a,14aと離間対向して横方向Xへ延びる外端縁(前後ウエスト開口縁)13b,14bと、内外端縁13a,13b,14a,14b間において縦方向Yへ延びる両側縁13c,14cとによって画定された横長矩形状を有する。前ウエスト域13の両側縁13cのそれぞれと後ウエスト域14の両側縁14cとは、互いに重ね合わされて、縦方向Yへ断続的に配置されたサイドシーム19によって連結されておむつ10の両側縁部が形成され、ウエスト開口21と一対のレッグ開口とが画定される。サイドシーム19は、公知の接着手段、例えば、熱エンボス/デボス加工、ソニック加工等の各種公知の熱溶着手段によってなされる。 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.
<ポケット>
 図1~図3、図8を参照すると、おむつ10は、後ウエスト域14のウエスト開口側において、肌対向面側に位置して横方向Xへ延びる帯状域(肌対向面側に位置する肌に当接する領域)23と、後ウエスト域14の横方向Xの中央部において、着用状態における前後方向において帯状域23と対向するポケット30を備えたポケット形成部20とを有する。帯状域23は、ポケット30と前後方向において対向し、後ウエスト域14の横方向の中央部に位置する中央部41を有する。ポケット形成部20は、帯状域23に固定された両側固定部45と、両側固定部45間において帯状域23の中央部41とつながる部分から上方へ延びるポケット内側域42と、横方向Xへ延びる折曲部33を介してポケット内側域42と前後方向において対向してクロッチ域15側へ延びるポケット外側域43と、ポケット内外側域42,43の両側部によって形成されたポケット両側域32とを有する。帯状域23の中央部41は、内外端部(上下端部)41a,41bを有し、ポケット内側域42は中央部41の内端部(下端部)41aと折曲部31を介してつながっている。
<Pocket>
Referring to FIGS. 1 to 3 and 8, the diaper 10 is a band-like region (skin located on the skin facing surface side) that is located on the skin facing surface side and extends in the lateral direction X on the waist opening side of the rear waist region 14. 23) and a pocket forming portion 20 provided with a pocket 30 facing the belt-like region 23 in the front-rear direction in the worn state at the central portion in the lateral direction X of the rear waist region 14. 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.
 既述のとおり、ポケット両側域32は、ポケット内外側域42,43の両側部が互いに重ね合されて形成されており、ポケット両側域32以外からなる両側固定部45が帯状域23の両側部に固定される。両側固定部45は、サイドシーム19から横方向Xの内側へ延びており、そのため、ポケット30は、少なくとも後ウエスト域14の中央部において開口する程度の大きさを有するものであって、サイドシーム19間の全域において開口する大きさを有するものではない。帯状域23とポケット30とは、後ウエスト域14のウエスト開口側に位置する。ここで、「後ウエスト域14のウエスト開口側」とは、後ウエスト域14の縦方向の寸法を2等分する線よりも外端縁14b側の領域を意味する。 As described above, the pocket both side regions 32 are formed by overlapping both side portions of the pocket inner and outer regions 42, 43, and both side fixing portions 45 other than the pocket both side regions 32 are both side portions of the belt-like region 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.
 帯状域23は、後記のストリング状またはストランド状の後上方ウエスト弾性体64によって少なくとも横方向Xへ弾性が付与されている。また、ポケット内側域42には、横方向Xへ延びるストリング状又はストランド状のポケット弾性体49が配置される。本実施形態において、ポケット弾性体49は、両側固定部45間において横方向Xへ延びている。 The belt-like region 23 is given elasticity at least in 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.
 図2及び図3を参照すると、本実施形態のおむつ10の着用状態及び自然状態において、ポケット内側域42が横方向Xにおいて収縮することによって、複数のギャザー78が形成されて、ポケット内側域42の横方向Xの寸法がポケット外側域43の横方向Xの寸法よりも小さくなっている。また、ポケット外側域43は、クロッチ域15の吸収体85の存在領域を帯状域23側へ延長した位置にあり、ポケット両側域32は、吸収体85の両側縁85cを帯状域23側へ延長した部分において内方へ折り曲がる。ポケット弾性体49の収縮作用によるポケット内側域42の横方向Xの寸法とポケット外側域43の横方向Xの寸法との相違とポケット両側域32の吸収体85の両側縁85cの延長部分における内方への折れ曲がりとによって、ポケット両側域32は、横方向Xの内側へ(縦軸Pへ向かって)伸展可能に折り込まれた状態となる。 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 contracting action of the pocket elastic body 49 and the inner part in the extended portion of both side edges 85c of the absorbent body 85 in the pocket both side areas 32. The pocket both side areas 32 are folded inwardly in the lateral direction X (toward the vertical axis P) by bending in the direction.
 このように、ポケット両側域32が伸展可能に折り込まれた態様となることによって、折曲部31とポケット両側域32とがそれぞれ僅かに展開された状態では、おむつ10の上面視において、帯状域23とポケット30との間には、上方へ開口した凹部25が画定される(図2参照)。また、ポケット30は、横軸Qへ(下方向へ)向かって折り曲げられた折曲部31と、横方向Xの内側へ向かって折り曲げられたポケット両側域32と、ウエスト開口21へ(上方向へ)向かって折り曲げられた折曲部33とを有し、それらが互いに異なる方向(3方向)へ折曲されていることによって、帯状域23がウエスト周り方向へ伸長されたときに、ポケット両側域32が起立して、ポケット内側域42が帯状域23に対して斜め後方へ延びて、ポケット30内部に排泄物を収容、保持するための立体的なポケット空間Sが形成される。ポケット内側域42が連なる中央部41の内端部41aは、後ウエスト域14の縦方向Yにおける中央部よりも縦方向Yの外側に位置している。なお、ポケット両側域32の折り曲げをより安定的に形成するために、加圧加工及び/または加熱加工によって、吸収体85の両側縁の延長上に予め縦方向Yへ延びる折曲線を形成してもよい。 As described above, when the pocket both side areas 32 are folded so as to be extendable, the band-like area in the top view of the diaper 10 in a state where the bent portion 31 and the pocket both side areas 32 are slightly developed. 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.
 図8及び図9を参照すると、ポケット内側域42は、中央部41に対して傾斜して位置し、それが後方へ移動するほどに中央部41に対する傾斜角度αは大きくなる。したがって、傾斜角度αが大きくなるほどに、ポケット内側域42は倒伏した状態となってポケット30の天面としての役割を果たし、ポケット30はその内部に比較的に多くの排泄物を収容、保持することが可能なポケット空間(収容スペース)Sを有するボックス状を呈する。 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.
<弾性ウエストパネル>
 図4及び図5を参照すると、前ウエストパネル17は、前ウエスト域13の外形を画定する前ウエストシート50を有する。前ウエストシート50は、吸収シャーシ12の前端部12Aが配置される主体部52と、主体部の縦方向Yの外側に位置する延出部53を有する。延出部53は、横方向Xへ延びる折曲ライン54に沿って縦方向Yの内側に折曲されて主体部52と吸収シャーシ12の前端部12Aとに固定される。前ウエストシート50の主体部52と延出部53との間には、横方向Xへ延びるストリング状又はストランド状の複数条の前ウエスト弾性体55が伸長状態で収縮可能に取り付けられる。
<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.
 前ウエストシート50の前ウエスト弾性体55よりもクロッチ域15側の部分には、横方向Xへ伸縮可能な前補助シート51が配置される。前補助シート51は、肌対向面側に位置し、吸収シャーシ12の前端部12Aを被覆するように、前端部12Aの一部とその両側に位置する主体部52とに固定される。前補助シート51は、エラストマー繊維からなる繊維不織布から形成される。前補助シート51が伸縮性繊維不織布から形成されていることから、それが非伸縮性繊維不織布から形成されている場合よりも肌当たりが良くなり、着用感に優れる。 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.
 後ウエストパネル18は、肌対向面側に位置する内面シート61と非肌対向面側に位置する外面シート62とから構成された後ウエストシート60と、内外面シート61,62間に伸長状態で収縮可能に固定された、横方向Xへ延びる複数条のストリング状又はストランド状の後下方ウエスト弾性体63を有する。後ウエスト域14は、後ウエストパネル18の外端部に断面Z字状に折曲された状態で固定されたベースシート70を有する。 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.
<ベースシート>
 図5及び図6(a)を参照すると、ベースシート70は、横方向Xへ延びる内端縁70a及び外端縁(後ウエスト開口縁14b)と、内外端縁14b,70a間において縦方向Yへ延びる両側縁70cとによって画定された横長矩形状であって、第1面80A(肌対向面)とその反対側に位置する第2面80B(非肌対向面)と、横方向Xへ並行して延びる第1折曲線71と第2折曲線72とを有する。ベースシート70は、外端縁14bと第1折曲線71との間に位置する外端部73と、第1折曲線71と第2折曲線72との間に位置する中間部74と、第2折曲線72と内端縁70aとの間に位置する内端部75とを有する。外端部73の第2面80B側には、横方向Xに対向して位置する一対の第1接合域81Aが位置し、それらの間には第1非接合域81Bが位置する。中間部74の第1面80A側には、横方向Xに対向して位置する一対の第2接合域82Aが位置し、それらの間には第2非接合域82Bが位置する。
<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.
 ベースシート70は、肌対向面側に位置する内面シート76と、非肌対向面側に位置する外面シート77と、外端部73において横方向Xへ延びる、内外面シート76,77間において伸長状態で収縮可能に固定された複数条のストリング状又はストランド状の後上方ウエスト弾性体64と、中間部74において横方向Xへ延びる、内外面シート76,77間において伸長状態で収縮可能に固定された複数条のストリング状又はストランド状のポケット弾性体49とをさらに有する。 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 shrinkable in a state and an inner portion 74 extending in the transverse direction X and fixed in a stretchable manner between the inner and outer surface sheets 76 and 77. A plurality of string-like or strand-like pocket elastic bodies 49.
 図6(b),(c)を参照すると、ベースシート70は、第1折曲線71に沿って外端部73の第2面80B側と中間部74の第2面80B側とが互いに当接されるように折曲されるとともに、第2折曲線72に沿って中間部74の第1面80A側と内端部75の第1面80A側とが互いに当接されるように折曲されることによって、縦断面において略Z字状に折曲された状態が維持される。 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.
 第1接合域81Aと第2接合域82Aとは、それらの横方向Xの寸法がほぼ同等であって、それらの間に位置する第1及び第2非接合域81B,82Bの横方向Xの寸法もほぼ同等であり、第1及び第2非接合域81B,82Bは、おむつ10の平面視において互いに重なって位置する。第1及び第2接合域81A,82Aは、例えば、ホットメルト接着剤等の公知の接着剤を塗布したり、ヒートシール等の公知の熱溶着手段によって形成される。 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.
 図6(d)を参照すると、ベースシート70は、外端部73が後上方ウエスト弾性体64によって収縮しており、第1及び第2折曲線71,72に沿って折り曲げられて第1及び第2接合域81A,82Aを介して接合された状態から、積層された中間部74と内端部75とを第2非接合域82Bの側縁に沿って縦方向Yへ延びる一対の第3折曲線79Aと第4折曲線(山折り折曲線)79Bとに沿ってさらに折り曲げられることによって、外端部73を除く部分が断面略Ω状を有する。かかる折り畳まれた状態のベースシート70の横方向Xの寸法は、自然状態(各弾性体が非伸長の状態)における後ウエスト域14の横方向Xの寸法とほぼ同じである。 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 portions 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 and 82A through the intermediate portion 74 and the inner end portion 75 stacked. 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).
 図4,図7~図9を参照すると、断面略Ω状に折曲されたベースシート70が横軸Qへ向かって凹状を有する接合域(第3接合域)83を介して、吸収シャーシ12と後ウエストパネル18とに固定される。このようにベースシート70が複数の折曲ラインによって折り畳まれた状態で固定されることによって、外端部73によって後ウエスト域14の帯状域23、中間部74の第2非接合域82Bによってポケット内側域42、内端部75の第2非接合域82Bと対向する部分によってポケット外側域43がそれぞれ形成される。また、第2接合域82Aを介してポケット内側域42の両側部とポケット外側域43の両側部とが互いに重なり合った状態で接合される。 Referring to FIGS. 4 and 7 to 9, the absorption 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.
 本実施形態においては、後ウエストシート60に別体からなるベースシート70を固定することによってポケット30等を形成したが、本発明の技術的な効果を奏する限りにおいて、後ウエストシート60とベースシート70とを一体のシートで形成してもよいし、帯状域23を後ウエストシート60と同一のシート部材で形成し、帯状域23に別体のシート部材を固定してポケット30を形成してもよい。また、ベースシート70を弾性伸縮性の1枚の繊維不織布シートから形成してもよいし、後上方ウエスト弾性体64の代わりに弾性伸縮性の繊維不織布シートを内外面シート76、77間に配置してもよい。したがって、本明細書において、例えば、「ポケット内側域42が帯状域23の中央部41の内端部41aとつながる」とは、中央部41とポケット内側域42とが同一のシート部材によって形成されて折曲部31において折曲されている場合と、それらが別体のシート部材から形成されて、折曲部31において両シート部材が連結されている場合とを含む。また、吸収シャーシ12を形成するシート部材を後方へ延出させて、後ウエストパネルとそれよりもさらに後方へ延出する部分を折り曲げてポケットとを形成することもできる。 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.
<吸収シャーシ>
 吸収シャーシ12は、長方形状であって、前端部12Aと、後端部12Bと、前後端部12A,12B間に位置する中間部12Cとを有する。吸収シャーシ12は、肌対向面側に位置し、透液性を有する繊維不織布製の身体側ライナ84と、吸液性の吸収体85と、吸収体85の底面全体を被覆する不透液性のプラスチックフィルムから形成された防漏シート86と、吸収シャーシ12の非肌対向面全体を形成する不透液性又は難透液性の被覆シート87とを含む。
<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.
 吸収体85は、フラッフパルプと吸収性ポリマー粒子との混合物から形成された芯材と、芯材全体を被包するテッシュペーパ等から形成された液拡散性のコアラップシートとから構成される。吸収体85は、横方向Xへ延びる前後端縁と、前後端縁間において縦方向Yへ延びる両側縁とから画定された矩形状であって、クロッチ域15から後ウエスト域14へ向かって延びる凹状の誘導溝80を有する。誘導溝80においては、吸収体85の吸液性コアが非存在又は他の部分に比して質量が小さくなっているものであって、切欠又は有底の溝である。本実施形態においては、誘導溝80は、他の部分に比して厚さ寸法の小さい有底である。また、誘導溝80は、一条であるが、複数条形成されていてもよい。 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.
 被覆シート87は、防漏シート86の両側縁の横方向Xの外側に位置する両側部を有する。両側部は、防漏シート86の両側縁に隣接して縦方向Yへ延びる折曲ラインに沿って内方へ(吸収体85側へ)折曲されて身体側ライナ84に固定される。両側部は、身体側ライナ84に固定される縦方向Yへ互いに離間する両端固定部と、身体側ライナ84の両側縁部に固定される近位縁部と、両端固定部間において縦方向Yへ延び、かつ、近位縁部と並行して縦方向Yへ延びる遠位縁部(自由縁部)88とを有する。遠位縁部88は、被覆シート87の外側縁部を折り曲げて固定することによって形成されたスリーブ状をなし、該縁部には縦方向Yへ延びる複数条のストリング状又はストランド状のカフ弾性体89が伸長状態で収縮可能に配設される。カフ弾性体89が収縮することによって、該縁部が身体側ライナ84から着用者の身体側へ離間してバリアカフを形成し、着用者の大腿部にフィットして排泄物の漏れを防止する。また、被覆シート87の両側部には、縦方向Yへ延びる複数条のストリング状又はストランド状のレッグ弾性体90が伸長状態で収縮可能に固定される。 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.
 レッグ弾性体90は、横方向Xにおいて所与寸法離間して配置された複数の弾性材料から形成されており、一定幅において弾性を有する弾性帯を形成するので、着用状態において着用者の脚周りに面状にフィットして排泄物の横漏れを効果的に防止しうる。また、レッグ弾性体90の後端部は、後ウエスト域14において後下方ウエスト弾性体63と平面視において重なっている。レッグ弾性体90の収縮力の作用するレッグ弾性域と後下方ウエスト弾性体63の収縮力の作用するウエスト弾性域とが平面視において重なることによって、着用者の大腿部を囲む仮想の弾性帯が形成される。 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.
 図4を参照すると、ポケット内外側域42,43の両側固定部45は、横軸Qへ向かって凹状を有する接合域83を介して帯状域23と吸収シャーシ12の後端部12Bとに固定されており、被覆シート87の遠位縁部88間の部分において吸収シャーシ12の後端部12Bと固定されていない。ベースシート70がかかる接合態様を有することによって、その非接合域と吸収シャーシ12の後端部12Bとの間には後ウエスト域14へ移動した排泄物を収容、保持するための後方スペースRが画定される。 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.
 通常、比較的に低月齢の乳幼児は、授乳時や母親に抱きかかえられた体勢等の様々なシチュエーションで流動性のある軟便を排泄するので、後ウエスト開口から軟便が漏れたり、着用者の背面に軟便が押し付けられて汚れたりするおそれがある。また、おむつ10の着用中に、前ウエスト域13においては、ウエスト開口部がずり下がったときに排泄物を収容させることのできるスペースが身体との間に形成されることも考えられるが、後ウエスト域14においては、臀部が突出した外形を有することからかかる隙間が形成され難く、排泄物を一時的に、収容保持するためには、本実施形態に係るおむつ10のように、着用状態において立体形状を呈するようなポケット空間Sを意図的に形成することが必要となる。 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.
 従来のおむつにおいて、このような課題を解決するために、前後ウエスト域及び/又はクロッチ域に下方向又は後方へ延びる収容スペースに排泄物を収容する構成は開示されているが、本実施形態のように、後ウエスト域の背面において下方へ(横軸Qへ向かって)開口して上方へ延びるポケット30を備えるおむつ10は公知ではない。 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.
 本実施形態においては、帯状域23とポケット30とが後ウエスト域14のウエスト開口側に位置し、帯状域23が後上方ウエスト弾性体64の伸長応力によって着用者の身体にフィットされるので、クロッチ域15側から後ウエスト開口側へ移動した排泄物の漏れが防止されるとともに、移動が阻止された排泄物が上方へ凸状に延びるポケット空間Sに流入して一時的に、収容、保持される。このように、移動が阻止された排泄物を後ウエスト域14の背面側に位置するポケット30に進入させることによって、排泄物が身体に接触することによる不快感や肌トラブルを抑制することができる。ポケット30は、帯状域23の伸縮と連動するものではないから、後ウエスト域14が伸長されてもポケット開口が閉じたりするおそれはない。また、ポケット30は、吸収体85の上端部(後端部)よりも上方に位置することから、吸収体85で吸収されずに後ウエスト開口側へ移動した体液を収容することができる。 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.
 また、ポケット30を形成するベースシート70の一部が後ウエスト域14にサイドシーム19から横方向Xの内側へ延びる接合域83を介して接合されており、ベースシート70自体が、レッグ弾性体90及びカフ弾性体89よりも縦方向Yの外側に位置して、それらとおむつ10の平面視において互いに重なっていない。したがって、レッグ弾性体90やカフ弾性体89の収縮力が間接的にポケット外側域43に作用してそれを下方へ引っ張ろうとする力が働いたとしても、ポケット外側域43が下方へ引っ張られることによって折曲部33が崩れてポケット空間Sが消滅するおそれはない。 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.
 再び、図2、図3及び図7を参照すると、おむつ10の非着用状態においては、ポケット30のポケット両側域32が内側へ(展開状態においては、縦軸P側へ)折曲された態様を有する一方、着用状態においては、ポケット両側域32が起立してポケット内側域42が帯状域23の中央部41から離間する方向Fへ移動して、中央部41との傾斜角度αが大きくなってポケット空間Sが形成される。一方、おむつ10の非着用状態においては、ポケット両側域32が折曲された態様を有して帯状域23の中央部41とポケット内側域42とが当接した状態となることによって、後ウエスト域14全体がよりコンパクトになって、厚さ方向Zの寸法が着用状態に比べて小さくなるので、複数のおむつ10の収納性及び運搬時の利便性に優れる。 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.
 また、着用者が仰臥状態であって、ポケット30に着用者の体圧が掛かったときにおいても、ポケット両側域32が折曲された態様を有して帯状域23の中央部41とポケット内側域42とが互いに当接した状態となるので、ベースシート70が体圧によって歪に変形されたりして、後ウエスト域14における部分的な厚みの変化によって生じる異物感を着用者に与えるおそれはない。ポケット両側域32は、着用者の身体に接近離間する方向、すなわち、厚さ方向Zにおいて屈伸運動可能であるから、体圧から開放されたときに、ポケット両側域32が身体から離間する方向F(図9参照)へ起立して、再び立体的なポケット空間Sが形成される。 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.
 したがって、着用者が仰臥状態になったり、母親に背中を抑えられた状態で抱きかかえられたりして、ポケット30にそれを身体側へ押し付けようとする力が繰り返し作用した場合であっても、ポケット両側域32の屈伸運動によってポケット30が安定的に繰り返して立体形状を呈することができるので、頻繁に姿勢を変化させたり、頻度高い軟便を繰り返す低月齢の乳幼児が着用する場合であっても、軟便を確実にポケット空間Sに収容することができる。また、本実施形態においては、既述のとおり、ポケット内側域42は、所要の縦方向Yの寸法を有することから、ポケット両側域32が起立することによって中央部41に対して傾斜して後方へ移動し、ポケット30の天面としての役割を果たし得るので、天面及びポケット両側域32側の折曲構造を有しない態様に比して、より多くの排泄物を収容することができる。 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.
 おむつ10の着用状態において、帯状域23が横方向X(ウエスト方向)へ伸長されたときには、ポケット両側域32による折曲が解除されてポケット内側域42が帯状域23に向かって移動してポケット空間Sが消滅して立体形状が損なわれるおそれがある。本実施形態においては、ポケット内側域42に横方向Xへ伸長可能なポケット弾性体49が配置されていることによって、中央部41が伸長されてポケット両側域32にそれを倒伏させようとする力が作用するときに、該弾性体49が収縮せずにその力に抗してポケット両側域32の起立状態及び帯状域23からポケット内側域42が離間した状態を維持するので、ポケット30がより安定的に立体形状を呈することができる。 In the wearing state of the diaper 10, when the belt-like region 23 is extended in the lateral direction X (waist direction), the bending by the pocket both-side regions 32 is released, and the pocket inner region 42 moves toward the belt-like region 23 and the pocket 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.
 また、ポケット内側域42の横方向Xにおける収縮率は、帯状域23の横方向Xにおける収縮率よりも低いことが好ましい。かかる場合には、帯状域23の中央部41の横方向Xにおける収縮量(収縮している部分の横方向Xにおける長さ寸法)が、ポケット内側域42及びポケット外側域43の横方向Xにおける収縮量よりも大きくなり、帯状域23が自然状態(収縮時)に比して横方向Xへ所定倍率伸長されたときであっても、ポケット両側域32が完全に倒伏されず、ポケット30は立体形状を維持することができる。 Further, 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 belt-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.
 <各領域の収縮率の測定方法>
 まず、おむつ10の展開状態において、ポケット内側域42と平面視において重なるポケット外側域43と帯状域23との積層領域(図4の太枠Kで囲んだ領域)を所定幅の大きさ(例えば、縦寸法15mm×横寸法100mm)で切り出してそれぞれサンプルとして、以下の手順により、各サンプルの寸法を測定した。i)各サンプルの横方向Xにおいて対向する両端部のうちの一方端部を把持し、ii)他方端部にクリップと錘を取り付けて、各サンプルが捩じれることなく床面に対して垂直となるように吊持した。かかる状態において、弾性要素(弾性要素がない場合にはシートの所定箇所)の配置領域において横方向に離間対向する2カ所の部分にインク等でマークを付し、該マーク間の離間寸法を測定して、それを各サンプルの収縮時の寸法(L1)とした。なお、錘の重さは、各サンプルに配置された弾性要素が伸長されない程度のものであれば調整することが可能であって、本測定では、約5.0gの錘を用いた。iii)次に、各サンプルからクリップと錘を外して、表面に弾性要素によるギャザーがなくなるまで横方向Xへ伸長させた後、2カ所のマークの離間寸法を測定して、伸長時の寸法(L2)とした。かかる測定方法によって測定した寸法L1,L2を収縮率=((L2-L1)/L2)×100(%)の算式に当てはめて各サンプルの収縮率(%)を算出した。
<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.
 ポケット内側域42に連なる中央部41の内端部41aは、後ウエスト域14の縦方向Yにおける中央部分よりも縦方向Yの外側に位置している。したがって、中央部41は、着用者の臀部における臀裂(割れ目)よりも上方において身体にフィットされるので、凹状の臀裂に当接される場合に比して中央部41と身体との間に隙間が生じ難く、排泄物の漏れを効果的に抑制することができる。なお、図示していないが、前ウエスト域13においても、尿を一時的に収容保持するために、後ウエスト域14と同様に下方へ開口可能なポケットを配置してもよい。 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.
 本実施形態においては、帯状域23の縦方向Yの寸法全域において、ほぼ均等に後上方ウエスト弾性体64が配置されている。後上方ウエスト弾性体64の収縮力はほぼ一定であってもよいし、互いに異なるものであってもよい。例えば、下端部(内端部)41aの収縮力が下端部を除く他の部分に比して高くなるように、後上方ウエスト弾性体64の収縮力を調整することもできる。すなわち、下端部41aに配置された後上方ウエスト弾性体64の収縮力を下端部41a以外に配置された他の後上方ウエスト弾性体64よりも高くすることによって、ポケット30の開口付近における身体へのフィット性を向上させて、排泄物を確実にポケット空間Sへ流入させることができる。 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.
 また、後ウエスト域14において、吸収体85には、クロッチ域15から後ウエスト域14へ向かって延びる凹状の誘導溝80が形成されている。ポケット30の開口付近に体圧等のそれを変形させようとする力が作用して開口が小さくなる場合であっても、吸収体85上に排泄された軟便が誘導溝80に沿ってポケット空間Sへ誘導されるので、排泄物をポケット空間Sに収容、保持することができる。排泄物をポケット空間Sへ誘導しやすくするために、誘導溝80は、後ウエスト域14のサイドシーム19間に位置する後ウエスト弾性体63,64よりもクロッチ域15側の位置から後ウエスト域14へ向かって延びていることが好ましく、必ずしも吸収体85の後端縁まで延在していなくてもよい。また、誘導溝80において吸収体85が肉薄になることによって、その上方に位置するポケット形成部20の下端部との間の段差が小さくなることによって、より排泄物がポケット空間S内へ流入されやすくなるといえる。 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.
<変形例1>
 図10は、本実施形態にかかるおむつ10の変形例の一例を示す、図8と同様の図である。
<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.
 図10を参照すると、帯状域23の肌対向面側には、弾性伸縮性を有する後補助シート58が配置されている。帯状域23をストリング状又はストランド状の後上方ウエスト弾性体64による収縮力によってのみ身体にフィットさせる場合には、身体の漏れの原因となるような比較的に大きなギャザーが形成されるおそれがあるところ、帯状域23の肌対向面側に後補助シート58を配置することによって、肌触りが向上するだけではなく、表面に弾性シート特有の比較的に小さなギャザーが形成されるので、ギャザーに沿って軟便がウエスト開口から外部に漏れ出るのを防止しうる。 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.
 また、後補助シート58は、弾性又は非弾性であって、比較的に嵩高であって、かつ、クッション性の高いシート材料から形成されていてもよい。かかる場合には、後ウエスト域14のフィット性を向上させるために、後上方ウエスト弾性体64の収縮力を比較的に高くした場合であっても、少なくとも帯状域23の肌対向面側に位置する後補助シート58がクッション機能を発揮して身体にギャザー痕を付けるおそれはない。 Further, the rear auxiliary seat 58 may be formed of a sheet material that is elastic or inelastic, is relatively bulky, and has a high cushioning property. 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.
<変形例2>
 図11は、本実施形態に係るおむつ10の変形例の一例を示す、図8と同様の図である。
<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.
 図11を参照すると、本変形例においては、帯状域23がベースシート70から形成され、ポケット内外側域42,43が後ウエストシート60から形成される。後ウエストシート60の一端縁部60aが折曲された状態で接合域92を介してベースシート70に接合される。接合域92は、例えば、両シート60,70の対向面に塗布されたホットメルト接着剤、各種公知の熱溶着手段からなる。このように、帯状域23と、ポケット内外側域42,43とがそれぞれ別体のシート部材から形成されていてもよいし、ポケット内側域42とポケット外側域43とが別体のシート部材から形成されていてもよい。ベースシート70の内端部93は、接合域92よりも縦方向Yの内側へ(下方へ)延出している。帯状域23を形成するベースシート70が接合域92よりも下方へ延出することによって、該延出下部分がポケット空間Sへ流入した排泄物が身体側へ移動するのを防止する障壁として機能しうる。 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.
<変形例3>
 図12は、本実施形態に係るおむつ10の変形例の一例を示す、図3と同様の図である。
<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.
 図12を参照すると、本変形例においては、帯状域23に不透液性のシート94が配置される。シート94は、ベースシート70を形成する内外面シート76、77間に固定されている。帯状域23に不透液性のシート94が配置されていることによって、ポケット空間Sへ流入せずに、後ウエスト開口側へ移動した排泄物の外部への漏れを効果的に防止しうる。 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.
<変形例4>
 図13は、本実施形態に係るおむつ10の変形例の一例を示す、図8と同様の図である。
<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.
 図13を参照すると、本変形例においては、防漏シート86がポケット外側域43から折曲部33へ延び、さらに、折曲部33からポケット内側域42へ延びている。繊維不織布からなるベースシート70のみでは、流動性の高い軟便を十分に保持することができず、その外面に滲出するおそれがあるところ、不透液性の防漏シート86の後端部86aがポケット30内に位置することによって防漏性に優れ、かかる軟便の滲出を防ぐことができる。また、防漏シート86は、ポケット30のポケット開口の横方向Xの寸法よりも大きな横方向Xの寸法を有する。したがって、ポケット開口からポケット空間Sへ進入する排泄物の滲出を効果的に防止しうる。 Referring to FIG. 13, in this 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.
 本発明のおむつ10を構成する各構成材料には、特に記述がなされている場合を除き、この種の分野において通常用いられている、各種の公知の材料を制限なく用いることができる。また、おむつ10の基本構造として、本明細書においては、前後ウエスト域13,14が別体の前後ウエストパネル17,18から形成されるものを例示したが、前後ウエスト域13,14及びクロッチ域15とが連続するパネルによって形成された構成であってもよいし、前後ウエスト域13,14の両側縁部が予め連結されたプルオン型ではなく、それらをテープファスナで連結するオープン型のおむつであってもよい。また、本明細書において使用されている「第1」~「第3」等の用語は、同様の要素、位置等を単に区別するために用いてある。 As the constituent materials constituting the diaper 10 of the present invention, various known materials that are usually used in this type 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.
 以上に記載した本発明に関する開示は、少なくとも下記事項に整理することができる。
 着用状態において上下方向及び横方向とそれらに交差する前後方向とを有し、肌対向面及びその反対側の非肌対向面と、前ウエスト域と、後ウエスト域と、前記前後ウエスト域間に位置するクロッチ域と、前記クロッチ域から前記前後ウエスト域へ延びる吸収体とを含む使い捨ておむつにおいて、
 前記後ウエスト域は、前記肌対向面側に位置して前記横方向へ延びる帯状域と、前記非肌対向面側に位置し、前記横方向における中央部において前記帯状域と前記前後方向において対向する下方へ開口可能なポケットを備えるポケット形成部とを有し、
 前記ポケット形成部は、前記帯状域に固定された両側固定部と、前記両側固定部間において前記帯状域とつながる部分から上方へ延びるポケット内側域と、前記横方向へ延びる折曲部を介して前記ポケット内側域と前記前後方向において対向して前記クロッチ域へ延び、かつ、前記吸収体の延長上に位置するポケット外側域とを有し、前記ポケット内側域には、前記横方向へ延びるポケット弾性体が配置され、前記ポケット外側域は、前記吸収体の両側縁部の延長上に位置する前記横方向へ折曲された部分を有する。
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, and is between the skin facing surface and the non-skin facing surface on the opposite side, the front waist region, the rear waist region, and the front and rear waist regions. In a disposable diaper including a crotch region positioned 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 facing surface side and extends in the lateral direction, is located on the non-skin facing surface side, and is opposed to the belt-like region in the front-rear direction in a central portion in the lateral direction. A pocket forming portion having a pocket that can be opened downward,
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.
 上記段落0058に開示した本発明に係る使い捨ておむつは、少なくとも下記の実施の形態を含み、該形態は、単独又は組み合せで構成することができる。
(1)前記ポケット形成部は、前記ポケット内外側域の両側部から形成されたポケット両側域を有し、前記ポケット弾性体が前記ポケット両側域間において配置されており、前記ポケット弾性体の収縮によって前記ポケット両側域が前記横方向の内側へ折曲される。
(2)前記ポケット弾性体は、前記ポケット形成部の前記両側固定部間において前記横方向へ延びる。
(3)前記帯状域は、前記横方向へ弾性的に伸縮可能である。
(4)前記帯状域の前記横方向における収縮率が前記ポケット内外側域の前記横方向における収縮率よりも高い。
(5)前記後ウエスト域において、前記吸収体には前記クロッチ域から前記後ウエスト域へ延びる誘導溝が形成される。
(6)前記帯状域と前記ポケット形成部とは、前記後ウエスト域のウエスト開口側に位置する。
(7)前記帯状域の前記ポケット内側域と前記前後方向において対向する部分の前記肌対向面側には、弾性伸縮性を有するシートが配置される。
(8)前記帯状域は、前記上下方向において対向する上下端部を有し、前記下端部の収縮力が前記下端部以外の他の部分の収縮力よりも高くなっている。
(9)前記吸収体の上端部から前記折曲部まで延び、かつ、前記横方向の寸法が前記ポケットの開口の前記横方向の寸法よりも大きい不透液性シートをさらに有する。
The disposable diaper according to the present invention disclosed in the above paragraph 0058 includes at least the following embodiment, and the embodiment can be configured singly or in combination.
(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 使い捨ておむつ
13 前ウエスト域
14 後ウエスト域
14b 後ウエスト域の開口縁
15 クロッチ域
23 肌当接域(帯状域)
30 ポケット
32 ポケット両側域
33 折曲部
41 肌当接域の中央部
41a 肌当接域の内端部
42 ポケット内側域
43 ポケット外側域
49 ポケット弾性体
58 後補助シート
80 誘導溝
85 吸収体
85a 吸収体の側縁部
94 不透液性のシート
X 横方向
Y 縦方向
DESCRIPTION OF SYMBOLS 10 Disposable diaper 13 Front waist area 14 Rear waist area 14b Open edge 15 of the rear waist area Crotch area 23 Skin contact area (band-like area)
30 pocket 32 pocket both sides area 33 bent part 41 center part 41a of skin contact area inner end part 42 of skin contact area pocket inner area 43 pocket outer area 49 pocket elastic body 58 rear auxiliary seat 80 guide groove 85 absorber 85a Absorbent side edge 94 Impervious sheet X Horizontal direction Y Vertical direction

Claims (10)

  1.  着用状態において上下方向及び横方向とそれらに交差する前後方向とを有し、肌対向面及びその反対側の非肌対向面と、前ウエスト域と、後ウエスト域と、前記前後ウエスト域間に位置するクロッチ域と、前記クロッチ域から前記前後ウエスト域へ延びる吸収体とを含む使い捨ておむつにおいて、
     前記後ウエスト域は、前記肌対向面側に位置して前記横方向へ延びる肌当接域と、前記非肌対向面側に位置し、前記横方向における中央部において前記肌当接域と前記前後方向において対向して下方へ開口可能なポケットを備えるポケット形成部とを含み、
     前記ポケット形成部は、前記肌当接域に固定された両側固定部と、前記両側固定部間において前記肌当接域とつながる部分から上方へ延びるポケット内側域と、前記横方向へ延びる折曲部を介して前記ポケット内側域と前記前後方向において対向して前記クロッチ域へ延び、かつ、前記吸収体の延長上に位置するポケット外側域とを有し、前記ポケット内側域には、前記横方向へ延びるポケット弾性体が配置され、前記ポケット外側域は、前記吸収体の両側縁部の延長上に位置する前記横方向へ折曲された部分を有する前記おむつ。
    It has an up-down direction and a horizontal direction in the wearing state, and a front-rear direction intersecting them, and is between the skin facing surface and the non-skin facing surface on the opposite side, the front waist region, the rear waist region, and the front and rear waist regions. In a disposable diaper including a crotch region positioned 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 facing surface side and extends in the lateral direction, is located on the non-skin facing surface side, and the skin contact region and the skin in the central portion in the lateral direction Including a pocket forming portion having a pocket that can be opened downward facing in the front-rear direction,
    The pocket forming portion includes both side fixing portions fixed to the skin contact region, a pocket inner region extending upward from a portion connected to the skin contact region between the both side fixing portions, and a bending extending in the lateral direction. A pocket outer region that extends to the crotch region opposite to the pocket inner region in the front-rear direction via a portion and is positioned on the extension of the absorber, and the pocket inner region includes the lateral region A pocket elastic body extending in a direction is arranged, and the pocket outer region has the laterally bent portion located on an extension of both side edges of the absorber.
  2.  前記ポケット形成部は、前記ポケット内外側域の両側部から形成されたポケット両側域を有し、前記ポケット弾性体が前記ポケット両側域間において配置されており、前記ポケット弾性体の収縮によって前記ポケット両側域が前記横方向の内側へ折曲される請求項1に記載のおむつ。 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.
  3.  前記ポケット弾性体は、前記ポケット形成部の前記両側固定部間において前記横方向へ延びる請求項1又は2に記載のおむつ。 The diaper according to claim 1 or 2, wherein the pocket elastic body extends in the lateral direction between the both side fixing portions of the pocket forming portion.
  4.  前記肌当接域は、前記横方向へ弾性的に伸縮可能である請求項1~3のいずれかに記載のおむつ。 The diaper according to any one of claims 1 to 3, wherein the skin contact area is elastically stretchable in the lateral direction.
  5.  前記肌当接域の前記横方向における収縮率が前記ポケット内外側域の前記横方向における収縮率よりも高い請求項4に記載のおむつ。 The diaper according to claim 4, wherein a contraction rate in the lateral direction of the skin contact region is higher than a contraction rate in the lateral direction of the pocket inner / outer region.
  6.  前記後ウエスト域において、前記吸収体には前記クロッチ域から前記後ウエスト域へ延びる誘導溝が形成される請求項1~5のいずれかに記載のおむつ。 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 absorber in the rear waist region.
  7.  前記肌当接域と前記ポケット形成部とは、前記後ウエスト域のウエスト開口側に位置する請求項1~6のいずれかに記載のおむつ。 The diaper according to any one of claims 1 to 6, wherein the skin contact area and the pocket forming portion are located on a waist opening side of the rear waist area.
  8.  前記肌当接域の前記ポケット内側域と前記前後方向において対向する部分の前記肌対向面側には、弾性伸縮性を有するシートが配置される請求項1~7のいずれかに記載のおむつ。 The diaper according to any one of claims 1 to 7, wherein a sheet having elastic stretchability is disposed on the skin facing surface side of a portion of the skin contact area facing the pocket inner area in the front-rear direction.
  9.  前記肌当接域は、前記上下方向において対向する上下端部を有し、前記下端部の収縮力が前記下端部以外の他の部分の収縮力よりも高くなっている請求項4~8のいずれかに記載のおむつ。 The skin contact area 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 parts other than the lower end. The diaper described in any one.
  10.  前記吸収体の上端部から前記折曲部まで延び、かつ、前記横方向の寸法が前記ポケットの開口の前記横方向の寸法よりも大きい不透液性シートをさらに有する請求項1~9のいずれかに記載のおむつ。 The liquid-impervious sheet further extending from the upper end portion of the absorbent body to the bent portion and having a lateral dimension larger than the lateral dimension of the pocket opening. Crab diapers.
PCT/JP2015/070803 2014-09-30 2015-07-22 Disposable diaper WO2016051938A1 (en)

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US10485710B2 (en) 2015-03-18 2019-11-26 The Procter & Gamble Company Absorbent article with leg cuffs
US10524962B2 (en) 2015-03-18 2020-01-07 The Procter & Gamble Company Absorbent article with waist gasketing element and leg cuffs
US10524963B2 (en) 2015-03-18 2020-01-07 The Procter & Gamble Company Absorbent article with waist gasketing element and leg cuffs
US10531990B2 (en) 2015-03-18 2020-01-14 The Procter & Gamble Company Absorbent article with leg cuffs
US10531991B2 (en) 2015-03-18 2020-01-14 The Procter & Gamble Company Absorbent article with waist gasketing element and leg cuffs
US10537481B2 (en) 2015-03-18 2020-01-21 The Procter & Gamble Company Absorbent article with waist gasketing element and leg cuffs
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US10531990B2 (en) 2015-03-18 2020-01-14 The Procter & Gamble Company Absorbent article with leg cuffs
US11844669B2 (en) 2015-03-18 2023-12-19 The Procter & Gamble Company Absorbent article with waist gasketing element and leg cuffs
US10524963B2 (en) 2015-03-18 2020-01-07 The Procter & Gamble Company Absorbent article with waist gasketing element and leg cuffs
US10792198B2 (en) 2015-03-18 2020-10-06 The Procter & Gamble Company Absorbent article with leg cuffs
US10531991B2 (en) 2015-03-18 2020-01-14 The Procter & Gamble Company Absorbent article with waist gasketing element and leg cuffs
US10537481B2 (en) 2015-03-18 2020-01-21 The Procter & Gamble Company Absorbent article with waist gasketing element and leg cuffs
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TW201628578A (en) 2016-08-16

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