WO2019073684A1 - 着用物品 - Google Patents

着用物品 Download PDF

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Publication number
WO2019073684A1
WO2019073684A1 PCT/JP2018/030172 JP2018030172W WO2019073684A1 WO 2019073684 A1 WO2019073684 A1 WO 2019073684A1 JP 2018030172 W JP2018030172 W JP 2018030172W WO 2019073684 A1 WO2019073684 A1 WO 2019073684A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
pocket structure
rear waist
extending
lateral direction
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2018/030172
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
京太 齋藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unicharm Corp
Original Assignee
Unicharm Corp
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 Unicharm Corp filed Critical Unicharm Corp
Priority to CN201880035991.3A priority Critical patent/CN110709041B/zh
Publication of WO2019073684A1 publication Critical patent/WO2019073684A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent 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
    • A61F13/49—Absorbent 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent 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
    • A61F13/49—Absorbent 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/494—Absorbent 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 specially adapted to be worn around the waist, e.g. diapers, nappies characterised by edge leakage prevention means

Definitions

  • This disclosure relates to wearing articles such as disposable diapers.
  • the vertical and horizontal directions, the front and back direction intersecting the vertical, the skin facing surface and the non-skin facing surface, the inner surface facing the wearer's body and the outer surface located on the opposite side Diapers having a front waist region, a rear waist region, a crotch region located between the front and rear waist regions, and an absorbent chassis extending from the crotch region to the front and rear waist regions are known.
  • the front waist region of the diaper disclosed in Patent Document 1 has a belt-like waist extension on the non-skin-facing surface of the waist opening.
  • the waist extension extends laterally in the lateral direction to both side edges of the rear waist region, and extends laterally in the skin-facing surface, an outer wall located on the non-skin-facing surface side, It has an inner wall located between the waistband and the outer wall.
  • the length dimension of the rear waist region can be expanded by the wearer himself pulling up while holding the waistband.
  • the waistband by covering the back of the wearer by pulling up the waistband, even if the back waist area is pulled downwards, for example when the wearer bends his back or raises his legs in a supine state Can.
  • the waistband since a plurality of gathers are formed on the waistband, there is a possibility that the excrement may leak from the gap of the gathers through the skin and the excrement is accommodated between the inner wall and the outer wall of the waist extension. If the space which can do it is formed, the leak to the exterior can be controlled.
  • the outer wall since the outer wall has an elastic body extending in the lateral direction, the outer wall can approach the inner wall by the contraction action of the elastic body, and a space capable of containing excrement can not be formed between the inner wall and the outer wall.
  • the waist extension has a problem that it can not return to the original state unless a force is externally applied once the third party such as the mother or the user lifts it while holding it.
  • the present invention suppresses the back displacement (displacement of the rear waist region with respect to the back), and copes with changes in the wearer's posture while having a portion capable of containing and holding excrement moving to the waist opening side. And provide a wearable article that can be restored to its original state when its attitude is returned to its original attitude.
  • the present invention has vertical and horizontal directions in the worn state, and front and back directions intersecting the vertical and horizontal directions, and the skin facing surface and the non-skin facing surface, the front It is directed to a wearable article comprising a waist area, a rear waist area, a crotch area located between the front and rear waist areas, and an absorbent chassis extending from the crotch area to the front and rear waist areas.
  • the rear waist region is a pocket structure located on the skin-facing surface and extending in the lateral direction, an outer wall extending upward from the side of the crotch region, and the pocket structure and the outer wall in the front-rear direction
  • the pocket structure and the inner wall face each other in a state in which the inner wall has elastic stretchability in the lateral direction and the inner wall is contracted in the lateral direction by the elastic stretchability of the inner wall.
  • the inner wall and the outer wall face each other to define a space between the inner wall and the outer wall, and the rear end of the absorbent chassis has a liquid-impervious or liquid-impervious back sheet. And extends inside the space at the inner surface of the outer wall, and the tensile stress in the lateral direction of the outer wall is smaller than the tensile stress in the lateral direction of the inner wall.
  • the rear waist region is formed by the sheet and by folding the sheet, a first fold extending laterally between the pocket structure and the inner wall, a first fold positioned between the inner wall and the outer wall and extending laterally Two folds, a pocket structure, an inner wall and an outer wall are formed. Therefore, the pocket structure, the inner wall, and the outer wall can be formed by bending the sheet that constitutes the rear waist region, so that it is not necessary to fix a plurality of sheets by the adhesive, and the sheet is cured by the adhesive. It is possible to prevent the touch of the skin from deteriorating.
  • the rear waist region has a wall forming sheet, and by folding the wall forming sheet, a laterally extending first bend, a pocket structure, and an inner wall positioned between the pocket structure and the inner wall are formed. Therefore, by fixing the inner wall and the outer wall, a space for containing excrement can be easily formed.
  • the pocket structure has elastic elasticity in the lateral direction, and the correlation of the extension stress in the lateral direction of the pocket structure, the inner wall, and the outer wall is: pocket structure> inner wall> outer wall. Therefore, since the extension stress of the pocket structure is large, it is possible to suppress the displacement of the position of the rear waist region with respect to the wearer's back, and the extension stress of the outer wall is small, so there is a space for containing excrement. It can suppress becoming small.
  • the absorbent chassis has a liquid absorbent core extending from the crotch region to the front and rear waist regions, and the liquid absorbent core extends to the inside of the space between the inner wall and the outer wall. Therefore, when excrement such as soft stool is excreted in the space between the inner wall and the outer wall, excrement can be absorbed by the absorbent core.
  • the waist opening edge of the front waist region is located below the waist opening edge of the rear waist region. Therefore, when the wearing article is worn by an infant, the upper end edge of the front waist area is relatively low, and the wearer's umbilical part is exposed, and the umbilical part touches the front waist area to cause discomfort or irritation Can be suppressed.
  • the outer wall is not provided with an elastic body extending in a contractable manner in the lateral direction. Therefore, the space between the inner wall and the outer wall can be suppressed from becoming small, and the elastic stretchability of the inner wall deforms according to the posture of the wearer, and when the posture returns to the original posture Can return to the state of
  • the rear waist region has a pair of first fixing regions connecting the pocket structure and the inner and outer walls with each other, and a pair of second fixing regions connecting the inner and outer walls with each other.
  • the dimension of the direction is larger than the lateral dimension of the second fixation area, and the second fixation area is located inward of the first fixation area. Therefore, the dimension of the horizontal direction of the space between the inner wall and the outer wall can be made small, and it can suppress that the excretion inside the space comes out outside.
  • the size of the elastic body in the pocket structure in the vertical direction is smaller than the size in the vertical direction of the elastic body in the inner wall. Therefore, it is possible to easily make the extension stress of the pocket structure larger than the extension stress of the inner wall.
  • the elastic stretchability of the inner wall can be deformed according to the posture of the wearer, and can return to the original state when the posture returns to the original posture.
  • the rear waist region can be expanded in the vertical direction to suppress back displacement, and the extension stress in the lateral direction of the outer wall is smaller than the extension stress in the lateral direction of the inner wall, so the contraction force of the outer wall It is possible to prevent the space located between the inner wall and the outer wall from becoming small, and maintain a space for containing waste.
  • the drawings illustrate specific embodiments of the present invention and include not only the essential features of the invention, but also optional and preferred embodiments.
  • the perspective view which looked the diaper of 1st Embodiment which is an example of the wearing article of the present invention from the back side.
  • A The side view of a diaper when a wearer raises a leg in a supine state.
  • B The side view of a diaper when a wearer extends a leg in a supine state.
  • a pants-type disposable diaper (pull-on diaper) 10 shown as an example of the wearing article according to the present invention has a longitudinal direction Y, a transverse direction X, a longitudinal direction Z which is a thickness direction intersecting them, and a longitudinal direction Y And has a longitudinal axis P which bisects the dimension in the lateral direction X, and a transverse axis Q which extends along the lateral direction X and bisects the dimension in the longitudinal direction Y.
  • FIG. 1 shows the diaper 10 worn by the wearer, with the wearer's body omitted for the convenience of the description.
  • the diaper 10 has an absorbent chassis joined to the skin-facing surface and the non-skin-facing surface facing it, an annular elastic waist panel 11 extending around the waist, and the elastic waist panel 11.
  • 12 includes a front waist region 13, a rear waist region 14, and a crotch region 15 located between the front and rear waist regions 13 and 14.
  • the diaper 10 is formed symmetrically with respect to the longitudinal axis P.
  • the elastic waist panel 11 comprises 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 front waist region 13 has a lower end edge 13a extending in the lateral direction X, an upper end edge (front waist opening edge) 13b extending in the lateral direction X opposite to the lower end edge 13a in the longitudinal direction Y, a lower end edge 13a and an upper end edge 13b Between the side edges 13c extending in the longitudinal direction Y and having a horizontally long rectangular shape.
  • the rear waist region 14 has a lower end edge 14a extending in the lateral direction X, an upper end edge (front and rear waist opening edge) 14b extending in the lateral direction X opposite to the lower end edge 14a in the longitudinal direction Y, and an upper end edge 14b. It has a shape defined by downwardly extending side edges 14c and biconcave curved edges 14d located between the side edges 14c and the lower end edge 14a.
  • Each of the side edges 13c of the front waist area 13 and each of the side edges 14c of the rear waist area 14 are overlapped with each other and connected by the side seams 19 intermittently extending in the longitudinal direction Y to form the both sides of the diaper 10.
  • a section is formed defining a waist opening 21 and a pair of leg openings 22.
  • the side seams 19 are made by known adhesive means, for example, various known heat welding means such as heat embossing / debossing processing, ultrasonic processing and the like.
  • the rear waist region 14 of the diaper 10 has a pocket structure 30 capable of containing waste such as stool on the side of the waist opening 21 in a worn state.
  • the pocket structure 30 includes a waistband 23 facing the wearer's body, an outer wall 43 extending upward from the side of the crotch region 15, and an inner wall 42 located between the waistband 23 and the outer wall 43 in the longitudinal direction Z.
  • the waistband 23, the inner wall 42, and the outer wall 43 extend in the lateral direction X and overlap in the front-rear direction Z, respectively, and a space S is defined between the inner wall 42 and the outer wall 43.
  • the waistband 23 and the inner wall 42 are continuous via a first bending line 31a extending in the lateral direction X, and the inner wall 42 and the outer wall 43 are continuous via a second bending line 33a extending in the lateral direction X.
  • the pocket structure 30 is formed over a predetermined area extending in the lateral direction X around the longitudinal axis P, and can be opened toward the crotch area 15.
  • the pocket structure 30 is located on the side of the waist opening 21 of the rear waist region 14.
  • “the side of the waist opening 21 of the rear waist region 14" means a region closer to the upper end edge 14b than a line bisecting the dimension in the longitudinal direction Y of the rear waist region 14.
  • the pocket structure 30 does not mean that the inner wall 42 and the outer wall 43 are connected by the inward folded tuck, but the inner wall 42 and the outer wall 43 are elastically shrunk in the lateral direction X. And a space S capable of containing the excrement that has moved to the side of the waist opening 21 of the rear waist region 14 is formed therebetween. By this, it is possible to prevent in advance the body from being soiled by fluid excrement such as soft stool and body fluid.
  • the side seams 19 are located on both sides in the lateral direction X of the pocket structure 30, and the side seams 19 also function as a junction area (first junction area) in which both sides in the lateral direction X of the space S are closed.
  • the waistband 23, the inner wall 42 and the outer wall 43 forming the pocket structure 30 are joined to one another only at the side seams 19 and not to one another between the side seams 19.
  • the first bonding area for bonding the inner wall 42 and the outer wall 43 does not double as the side seam 19 for bonding both side edges of the diaper 10, It may be separately located inside the lateral direction X.
  • the absorbent chassis 12 has a substantially rectangular shape, and is located between the front end 12A, the rear end 12B, and the front end 12A and the rear end 12B. And 12C.
  • the absorbent chassis 12 is located on the skin-facing surface side, a body-side liner 84 made of a liquid-permeable fibrous nonwoven fabric, a liquid-absorbent core 85, and back sheets 86 and 87 located on the non-skin-facing surface side.
  • the back sheet 86 is formed of a liquid-impervious plastic film that covers the entire bottom surface of the liquid-absorbent core 85 and is leakproof, and the back sheet 87 is liquid-impervious or liquid-impervious.
  • the absorbent chassis 12 extends from the rear end edge of the liquid absorbent core 85 to the outside in the longitudinal direction Y, the rear end 84 a of the body side liner 84, the rear end 86 a of the back sheet 86, and the rear end of the back sheet 87 It further comprises an end flap 93 comprising 87a.
  • the liquid-absorbent core 85 is composed of, for example, a core material formed of a mixture of fluff pulp and absorbent polymer particles, and a liquid diffusive core cover sheet formed of tissue paper covering the entire core material. Be done.
  • the absorbent core 85 extends from the crotch region 15 to the front and rear waist regions 13 and 14, and the rear end 85 a of the absorbent core 85 extends to a space S defined by the inner wall 42 and the outer wall 43 ing.
  • excrement such as highly flexible soft feces excreted in the space S of the pocket structure 30 can be absorbed by the absorbent core 85.
  • Both sides of the back sheet 87 are folded inward in the lateral direction X along a bending line (not shown) extending in the longitudinal direction Y, and extend in the longitudinal direction Y between the two sides and the opposing portion thereof.
  • a plurality of string-like or strand-like leg elastic bodies 90 are contractably fixed in the stretched state.
  • the leg elastic body 90 is composed of a plurality of elastic materials arranged at predetermined intervals in the lateral direction X, and forms an elastic area of a fixed width. For this reason, in the wearing state, it fits like a plane around the leg of the wearer and the lateral leakage of the excrement is effectively prevented.
  • the front waist panel 17 includes two front waist sheets 50 that form the front waist area 13.
  • the front waist sheet 50 has a main portion 52 in which the front end portion 12A of the absorbent chassis 12 is disposed, and an extending portion 53 positioned on the outer side in the longitudinal direction Y of the main portion 52.
  • the extension 53 is bent inward along a bending line extending in the lateral direction X and is fixed to the main body 52 and the front end 12A of the absorbent chassis 12 disposed on the inner surface of the main body 52. .
  • a plurality of string-like or strand-like front waist elastic bodies 55 extending in the lateral direction X are stretchably fixed in a contractable manner.
  • the front waist elastic body 55 is cut away at a portion overlapping the liquid absorbent core 85 located at the center in the lateral direction X, and the front waist panel 17 defines a central inelastic region.
  • the rear waist panel 18 includes a rear waist sheet 60 that forms the rear waist region 14 as shown in FIGS. 3 and 5.
  • the rear waist sheet 60 includes a first rear waist sheet 61, and a second rear waist sheet 62 that covers a part of the first rear waist sheet 61 on the inner surface of the first rear waist sheet 61.
  • the dimension in the longitudinal direction Y of the first rear waist sheet 61 is larger than the dimension in the longitudinal direction Y of the second rear waist sheet 62.
  • the second rear waist sheet 62 is disposed on the inner surface, the second rear waist sheet 62 extends outward in the longitudinal direction Y more than the upper end edge of the second rear waist sheet 62, and the first and the second 2 rear waist seat 61, 62 is the same shape
  • the rear waist sheet 60 is formed by joining the first and second rear waist sheets 61, 62, and a main body having areas 60A, 60B, 60C, which will be described later, and a second side extending from the main body in the longitudinal direction Y It has an extension portion 60D formed only from the first rear waist sheet 61, and a plurality of bending lines 31a, 33a, 34a extending in the lateral direction X.
  • the main part of the rear waist sheet 60 is a first area 60A located on the crotch area 15 side, a second area 60B located between the first bending line 31a and the second bending line 33a, and a first area A third area 60C is located between the bending line 31a and the third bending line 34a.
  • a plurality of strings or strands are fixed so as to be contractible in an extended state in the lateral direction X between the first rear waist sheet 61 and the second rear waist sheet 62.
  • the waist elastics 63, 64, 65 are arranged after being formed of an elastic material.
  • the rear waist elastics 63, 64, 65 are a lower rear waist elastic 63 located in the first area 60A of the main body, an inner wall elastic body 65 located in the second area 60B, and a band located in the third area 60C.
  • an elastic body 64 is cut away at a central portion in the lateral direction X and overlapping with the liquid absorbent core 85 to define a central inelastic region.
  • the first rear waist sheet 61 and the second rear waist sheet 62 are connected via hot melt adhesive applied to one of the facing surfaces of both sheets in various known application patterns. In addition to being bonded together, they can also be bonded together via a hot melt adhesive applied to the entire circumference of each elastic body 63, 64, 65.
  • the rear end 12 ⁇ / b> B of the absorbent chassis 12 is located on the skin-facing surface of the first area 60 ⁇ / b> A of the rear waist sheet 60.
  • the extension portion 60D of the rear waist sheet 60 is bent toward the inner surface of the main portion along the bending line 34a, and is positioned in the main portion and the first area 60A through the hot melt adhesive. It is joined to a part of the rear end 12B.
  • the first area 60A has an inelastic portion 66 without an elastic body, which is located between the first bending line 33a and the rear lower waist elastic body 63.
  • the rear end 12 B of the absorbent chassis 12 overlaps the inelastic portion 66.
  • the rear waist sheet 60 is bent along the second bending line 33 a from the crotch region 15 side in a state in which the extension portion 60D is joined to the main portion (mountain fold) first region 60A And the second area 60B face each other, and are further bent along the first bending line 31a (valley fold) so that the second area 60B and the third area 60C face each other
  • the inelastic portion 66 of the first section 60A and the second and third sections 60B and 60C are folded in a Z shape.
  • the waistband 23 of the third area 60C continuously extends in the lateral direction X between the side seams 19 by joining overlapping portions at the side seams 19, the second area
  • An inner wall 42 consisting of 60B and an outer wall 43 consisting of the inelastic part 66 of the first section 60A are respectively formed.
  • the respective bent portions are formed by the portions bent by the bending lines 31a and 33a, and a space S capable of containing and holding excrement between the inner wall 42 and the outer wall 43 is drawn. Is made.
  • the rear waist sheet 60 is bent at a plurality of folding lines extending in the lateral direction X to form the pocket structure 30 having the waist band 23, the inner wall 42 and the outer wall 43. As described above, it may be formed by bending the integral waist sheet 60 without combining and forming separate sheets, which can suppress the manufacturing cost.
  • the method for forming the pocket structure 30 is not limited to this embodiment, and the pocket structure 30 may be formed of a wall forming sheet separate from the rear waist sheet 60. That is, the portion of the rear waist panel 18 excluding the pocket structure 30 may be formed from the rear waist sheet 60, and the pocket structure 30 may be formed from a separate wall forming sheet. Furthermore, in the wall forming sheet, only the waist band 23 may be formed from a separate sheet, or the portion excluding the outer wall 43 and the pocket structure 30 may be formed from the rear waist sheet 60, and from the wall forming sheet to the waist band 23 and the inner wall 42 may be formed. In addition, the waistband 23, the inner wall 42, and the outer wall 43 may be formed from separate sheets.
  • the elastic members 63, 64, 65 are arranged in the rear waist elastic region after the waist band 23, the inner wall 42, and the rear lower waist elastic body 63 are arranged, thereby extending and contracting in the lateral direction X A possible elastic zone is formed.
  • the thickness of the elastic bodies 63, 64 and 65 can be appropriately adjusted according to the fineness, pitch and expansion ratio of the elastic bodies 63, 64 and 65, and preferably the back lower elastic body 63
  • the thickness is 310 to 1240 dtex
  • the thickness of the band elastic body 64 is 310 to 1240 dtex
  • the thickness of the inner wall elastic body 65 is 310 to 1240 dtex. More preferably, the thickness of the rear lower waist elastic body 63 is 470 to 940 dtex
  • the thickness of the band elastic body 64 is 470 to 940 dtex
  • the thickness of the inner wall elastic body 65 is 470 to 940 dtex.
  • the rear lower waist elastic body 63 is 2.0 to 3.5 times
  • the band elastic body 64 is 1.8 to 3.0 times
  • the inner wall elastic body 65 is 1.8 to It is fixed to the sheets 61 and 62 in a state of being stretched by 3.0 times.
  • the dimension (pitch) L3 in the longitudinal direction Y (vertical direction) of the band elastic body 64 in the waistband 23 is the dimension (pitch) in the longitudinal direction Y (vertical direction) of the inner wall elastic body 65 in the inner wall 42.
  • the dimension L3 in the longitudinal direction Y of the band elastic body 64 in the waistband 23 is 3.0 to 8.0 mm
  • the dimension L4 in the longitudinal direction Y of the inner wall elastic body 65 in the inner wall 42 is 5. It is 0 to 10.0 mm.
  • the pitch of the elastic members 64 and 65 means not the distance between the centers of the elastic members 64 and 65 but the dimension between the adjacent side edges of the elastic members 64 and 65 facing each other.
  • the extension stress of a predetermined width in the lateral direction X of the waistband 23 has a correlation of waistband 23> inner wall 42> outer wall 43.
  • the outer wall 43 has the inelastic portion 66 not having the rear lower waist elastic body 63 (FIG. 3) and is substantially inelastic, and the inner wall 42 and the waist band Elongation stress is lower than 23.
  • the thickness, pitch and expansion ratio of the elastic bodies 64 and 65 may be appropriately adjusted, and in the present embodiment, By making the pitch between the band elastic bodies 64 smaller than the pitch of the inner wall elastic bodies 65, the above correlation is adjusted to be established. Also, as described above, since the waistband 23 has a smaller pitch between the band elastic bodies 64 than the pitch between the inner wall elastic bodies 65 of the inner wall 42, the waistband 23 contacts the skin of the wearer and contacts the skin. Are good and rubber marks are hard to get.
  • the elastic body is arranged on the outer wall 43 that “the correlation of the extension stress of the predetermined width in the lateral direction X of the waist band 23, the inner wall 42 and the outer wall 43 is“ waist band 23> the inner wall 42> the outer wall 43 ”
  • the elastic action is slightly developed by the contraction action of the rear lower waist elastic body 63 is included.
  • the waistband 23 having a relatively large tensile stress does not slip down, and moves obliquely downward and backward so that the inner wall 42 is separated from the waistband 23, and the outer wall 43 moves downward.
  • the pocket structure 30 is deformed in response to the movement of the wearer's body so that the size in the longitudinal direction Y (vertical direction) of the rear waist region 14 is expanded, thereby trying to slide down the waistband 23 Power can be absorbed to suppress back displacement.
  • the pocket structure 30 is deformed so as to be developed while being pulled down as a whole, and the bent portion of the second bending line 33a exhibits a gently curved convex shape.
  • the elastic body In the vicinity of the bending portion of the second bending line 33a, the elastic body is not disposed, and the rigidity is relatively low and flexible, so that it is likely to be deformed following the movement of the body.
  • the inner wall 42 is the waistband 23.
  • the outer wall 43 moves upward and returns (see FIG. 6).
  • the rear waist panel 18 deforms so as to expand in the vertical direction Y (vertical direction) according to the change in the posture of the wearer. While being able to suppress back displacement, when the wearer comes to the original posture, the wearer and the wearing assistant can automatically return to the original state without operation.
  • the waist band 23 since the correlation of the extension stress of the predetermined width in the lateral direction X is: waist band 23> inner wall 42> outer wall 43, the waist band 23 stably fits the body and the inner wall 42 By having a lower elasticity than the waistband 23, the inner wall 42 can be laid diagonally downward and backward so as to be separated from the waistband 23 according to the movement of the wearer.
  • the outer wall 43 approaches the inner wall 42 and the space S becomes smaller or disappears because the elastic body is not disposed on the outer wall 43 and is substantially inelastic. There is nothing to do. Further, since the end flap 93 which is a part of the rear end portion 12B of the absorbent chassis 12 is located in the space S, the outer wall 43 is higher in the lateral direction X than in the case of being formed only from the sheet material. It has rigidity. Therefore, even when the pocket structure 30 is deformed or pressure is applied, the dimension of the outer wall 43 in the lateral direction X is not narrowed, and the width of the space S is not reduced.
  • the inner wall 42 is formed only by the rear waist sheet 60.
  • the number of sheet materials forming the outer wall 43 is larger than the number of sheet materials forming the inner wall 42. Therefore, while the rigidity of the outer wall 43 is larger than the rigidity of the inner wall 42, the inner wall 42 deforms flexibly according to the movement of the wearer's body, while the outer wall 43 moves up and down. Relatively smaller.
  • the sheet material forming the waistband 23, the inner wall 42 and the outer wall 43 is fixed only by the pair of side seams 19 located on both side edges in the lateral direction X and is not fixed between the pair of side seams 19. is there. Therefore, the dimension in the lateral direction X in which the inner wall 42 can be deformed can be made as large as possible.
  • the end flap 93 has the liquid-impervious or liquid-impervious back sheet 86, 87, it is possible to suppress leakage of highly mobile excrement that has moved to the space S. Further, in the present embodiment, not only the end flap 93 but also the rear end portion 85a of the semi-rigid liquid-absorbent core 85 having rigidity higher than that of the sheet material of the component of the diaper is located in the space S. The deformation of the outer wall 43 can be further suppressed, and excrement that has moved into the space S can be sufficiently absorbed.
  • the size in the vertical direction of the rear waist region 14 can be expanded according to the posture of the wearer to suppress back displacement and move toward the waist opening Since the highly fluid excrement can be accommodated and held by the pocket structure 30, it is possible to prevent the back from being soiled by the excrement.
  • the upper end edge (front waist opening edge) 13 b of the front waist region 13 is located below the upper edge (rear waist opening edge) 14 b of the rear waist region 14.
  • the inner wall 42 is contracted to be inclined with respect to the waist band 23 so that the waist band 23 is pulled upward and bent upward. It has a shape. Therefore, it is considered that the upper end edge 14 b of the rear waist region 14 extends upward beyond the upper end edge 13 b of the front waist region 13.
  • the upper end 13b of the front waist region 13 is relatively low, so the umbilical part of the wearer is exposed, and the umbilical part touches the front waist region 13 to feel discomfort or It is possible to suppress the stimulation.
  • FIG. 9 is a developed plan view similar to FIG. 3 of the diaper 10 according to the second embodiment.
  • the basic configuration aspect of the diaper 10 according to the present embodiment is the same as that of the first embodiment, and different configurations will be described below.
  • a second fixed area 97 (a hatched portion in FIG. 9) is located between a pair of side seams 19 which is a first fixed area joining the waistband 23, the inner wall 42 and the outer wall 43 to each other. .
  • the second fixing area 97 joins the inner wall 42 and the outer wall 43 to each other by an adhesive such as a hot melt adhesive.
  • the dimension L1 in the lateral direction X of the pair of side seams 19 is larger than the dimension L2 in the lateral direction X of the pair of second fixed regions 97, and the second fixation region 97 is positioned inward of the pair of side seams 19 There is.
  • the second fixing area 97 does not have to be formed of an adhesive, and can be formed, for example, by using a welding method such as heat sealing or sonic.
  • the second fixing area 97 joins the inner wall 42 and the outer wall 43, the dimension in the lateral direction X of the space S of the pocket structure 30 is reduced.
  • the second fixed area 97 is located outside of the back sheet 86 in the lateral direction X.
  • the dimension in the lateral direction X of the space S for containing excrement such as soft stools is narrowed, and is substantially limited to the area overlapping the existing area of the absorbent chassis 12, but both sides of the absorbent chassis 12 in the space S
  • the excrement stored in the space S can be suppressed from leaking out to the crotch region 15 side from the opening located at the
  • the pocket structure 30 and the inner wall 42 are not fixed and the inner wall 42 and the outer wall 43 are not fixed between the side seam 19 which is the first fixing region and the second fixing region 97 in the lateral direction X. Therefore, it is possible to suppress the back waist region 14 from being reduced in touch by the adhesive and to increase in rigidity.
  • the diaper 10 which does not arrange
  • the present invention is not limited thereto, and an elastic body may be disposed on the outer wall 43. Even in this case, it is preferable that the correlation of the extensional stress in the lateral direction X is: waist band 23> inner wall 42> outer wall 43.
  • each constituent material constituting the diaper 10 of the present invention various known materials generally used in this type of field can be used without limitation, unless otherwise specified.
  • the diaper 10 comprised from three panels of the front waist panel 17, the back waist panel 18, and the absorptive chassis 12 was illustrated in this specification as a basic structure of the diaper 10, back and front waist area 13, 14 And the crotch area 15 may be constituted by a continuous panel.
  • the non-wearing state not the pull-on type diaper in which the side edges of the front and rear waist regions 13 and 14 are connected but in the non-wearing state, the side edges of the front and rear waist regions are not connected.
  • the diaper may be an open type diaper in which the side edges are connected with a tape fastener when wearing a bag, and in the unworn state, one of the lateral directions X is connected while the other is open and worn It may be an open type diaper in which the other in the lateral direction X is connected by a tape fastener. Also, terms such as “first” to "second” used in the present specification are used simply to distinguish similar elements, positions and the like.
  • Wearable items (disposable diapers) 12
  • Absorbent chassis 12B rear end 13 front waist area 13b upper end edge (rear waist opening edge of rear waist area) 14 back waist area 14b top edge (front waist opening edge of back waist area) 15 crotch area 19 side seam (first fixed area) 21 waist opening 23 waist band 30 pocket structure 31a first bending line (first bending) 33a second bending line (second bending) 42 inner wall 43 outer wall 61 first rear waist sheet 62 second rear waist sheet 63 rear lower waist elastic body 64 band elastic body 65 inner wall elastic body 85 liquid absorbing core 86 back sheet (leakage leakage sheet) 87 Back sheet (coated sheet) 90 leg elastic body 97 second fixing area L1 lateral dimension L2 of first fixing area lateral dimension of second fixing area L3 longitudinal dimension of band elastic body L4 longitudinal direction of inner wall elastic body Dimension S Space X Horizontal Y Vertical (Vertical) Z longitudinal direction of inner wall elastic body Dimension S Space X Horizontal Y Vertical (Vertical) Z longitudinal direction of inner wall elastic

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
PCT/JP2018/030172 2017-10-12 2018-08-13 着用物品 Ceased WO2019073684A1 (ja)

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JP2017198448A JP6976129B2 (ja) 2017-10-12 2017-10-12 着用物品
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US20220362070A1 (en) * 2020-02-28 2022-11-17 The Procter & Gamble Company Pant-type absorbent article and manufacturing method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7362527B2 (ja) * 2020-03-25 2023-10-17 大王製紙株式会社 連結式使い捨て着用物品

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JP2016067761A (ja) * 2014-09-30 2016-05-09 ユニ・チャーム株式会社 使い捨ておむつ
JP2017012460A (ja) * 2015-06-30 2017-01-19 ユニ・チャーム株式会社 使い捨ての体液吸収性着用物品
JP2017164357A (ja) * 2016-03-17 2017-09-21 王子ホールディングス株式会社 使い捨ておむつ

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JP3811001B2 (ja) * 2000-12-06 2006-08-16 ユニ・チャーム株式会社 使い捨て着用物品
JP5430178B2 (ja) * 2009-03-03 2014-02-26 ユニ・チャーム株式会社 使い捨ておむつ

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Publication number Priority date Publication date Assignee Title
JP2016067761A (ja) * 2014-09-30 2016-05-09 ユニ・チャーム株式会社 使い捨ておむつ
JP2017012460A (ja) * 2015-06-30 2017-01-19 ユニ・チャーム株式会社 使い捨ての体液吸収性着用物品
JP2017164357A (ja) * 2016-03-17 2017-09-21 王子ホールディングス株式会社 使い捨ておむつ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220362070A1 (en) * 2020-02-28 2022-11-17 The Procter & Gamble Company Pant-type absorbent article and manufacturing method thereof
US20220362069A1 (en) * 2020-02-28 2022-11-17 The Procter & Gamble Company Pant-type absorbent article
US12440395B2 (en) 2020-02-28 2025-10-14 The Procter & Gamble Company Pant-type absorbent article and manufacturing method thereof
US12458545B2 (en) * 2020-02-28 2025-11-04 The Procter & Gamble Company Pant-type absorbent article and manufacturing method thereof

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CN110709041A (zh) 2020-01-17
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JP6976129B2 (ja) 2021-12-08

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