WO2014057974A1 - Couche jetable de type ouvert - Google Patents

Couche jetable de type ouvert Download PDF

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Publication number
WO2014057974A1
WO2014057974A1 PCT/JP2013/077466 JP2013077466W WO2014057974A1 WO 2014057974 A1 WO2014057974 A1 WO 2014057974A1 JP 2013077466 W JP2013077466 W JP 2013077466W WO 2014057974 A1 WO2014057974 A1 WO 2014057974A1
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WO
WIPO (PCT)
Prior art keywords
elastic
area
region
waist
chassis
Prior art date
Application number
PCT/JP2013/077466
Other languages
English (en)
Japanese (ja)
Inventor
賢一 笹山
邦彦 桂川
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 WO2014057974A1 publication Critical patent/WO2014057974A1/fr

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Classifications

    • 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 articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
    • 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 articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49058—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper
    • A61F13/4906—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper the diaper having an outer chassis forming the diaper and an independent absorbent structure attached to the chassis
    • A61F13/49061—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper the diaper having an outer chassis forming the diaper and an independent absorbent structure attached to the chassis the diaper having one or two waist members forming the diaper waist region and an independent absorbent structure attached to the one or two waist members forming the crotch region
    • 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
    • A61F13/56—Supporting or fastening means
    • A61F13/64—Straps, belts, ties or endless bands
    • 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 articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F2013/49038—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located all around the absorbent article's perimeter

Definitions

  • the present invention relates to disposable diapers, and more particularly to open-type disposable diapers.
  • open disposable diapers having a chassis and an elastic waist belt that fits around the waist of the wearer are known.
  • a chassis having a liquid absorbing structure extending from the crotch area to the front and rear waist areas, an elastic waist panel extending from the rear side of the crotch area to the rear waist area, and both sides of the elastic waist panel
  • An open type disposable diaper having a pair of elastic belt portions provided with a fastener portion on at least one side.
  • the two belt extension parts are bent inward so as to overlap with each other, and the fastener part of one belt extension part is retained on the outer surface of the other belt extension part.
  • a looped elastic waist belt is defined by the elastic belt portions and the elastic waist panel.
  • the fastener receiving portion located on the skin facing surface of the front waist region is retained to the fastener receiving portion located in the elastic region of the elastic waist belt, so the fastener receiving portion is deformed and the fastener portion is stable.
  • the fastening force of the fastening means may be reduced.
  • the fastening means can not exert the required fastening force, there is a risk that the front waist region of the diaper may slip down or slip off during or during the wearing operation.
  • an object of the present invention is an improvement of the prior art, in which the user in the standing position can be easily attached and detached, and the front waist region is stable during the wearing operation and during wearing It is an object of the present invention to provide an open-type disposable diaper that is
  • the present invention is characterized in that a longitudinal direction parallel to the longitudinal axis and a lateral direction parallel to the transverse axis, a skin facing surface and a non-skin facing surface, a front waist region, a rear waist region, It has a crotch area located between the waist areas, and has an absorbent structure disposed at least in the crotch area, and a front end area located in the front waist area and a rear end area located in the rear waist area.
  • An open type disposable diaper including a chassis and an elastic waist belt connected to a rear end area of the chassis.
  • the non-skin of the elastic waist belt connected via a first fastening means for connecting the side edges of the elastic waist belt with each other via the first fastening means.
  • a second fastening means for retaining the front end area of the chassis on the opposite surface, the elastic waist belt extending from the opposite side edges of the rear end area of the chassis to the pair of belts extending laterally outward
  • a first elastic region extending in the lateral direction from the side edge of the liquid absorbing structure, and at least one of the pair of belt extension portions.
  • a first hooking portion located on the skin-facing surface side of the front end region characterized in that it is composed of a second hooking portion located on the non-skin facing side of the non-elastic region of.
  • the elastic waist belt stretches, so that the diaper does not slip down or slip off during the wearing operation or during the wearing.
  • the fastener receiving portion constituting the second fastening means is positioned in the inelastic region of the elastic waist belt, its planarity is maintained, and the fastener receiving portion is deformed by the expansion and contraction of the elastic region and the second fastening is performed.
  • the front end area of the chassis can be stably connected to the elastic waist belt without the fastening force of the means being reduced.
  • the drawings illustrate specific embodiments of the present invention and include optional and preferred embodiments in addition to the essential features of the invention.
  • the development top view which showed only an elastic waist belt of a diaper in a 2nd embodiment with a solid line.
  • Partially broken plan view of the liquid absorbent structure in the fifth embodiment The partially broken top view of the liquid absorption structure in 6th Embodiment.
  • the open type disposable diaper 10 has a longitudinal direction Y parallel to the longitudinal axis P and a transverse direction X parallel to the transverse axis Q, a skin facing surface and a non-skin facing surface ,
  • the front waist region 11, the rear waist region 12, the chassis 15, and the liquid absorbing structure 14 disposed on the skin facing surface of at least the crotch region 13, the crotch region 13 and the rear waist region 12 in the chassis 15
  • an elastic waist belt 16 extending in the lateral direction X.
  • the side edges of the elastic waist belt 16 are connected to each other via the first fastening means 17 and the front end 51 of the chassis 15 defining the front waist area 11 serves as the second fastening means 18.
  • the waist opening 19 and the pair of leg openings are defined by being connected to the outer surface of the elastic waist belt 16 via the belt.
  • the elastic waist belt 16 extends straight in the lateral direction X, and the outside edges 16 a and 16 b opposite to each other in the longitudinal direction Y and opposite to each other in the lateral direction X.
  • the elastic panel 20 has an oblong rectangular shape defined by the convex side edge 16c and the side edge 16d extending straight in the longitudinal direction Y, and the inner surface of the central portion of the belt is connected to the chassis 15 A retention tab 22 attached to one side of the elastic panel 20 and a retention tab 24 attached to the other side.
  • the elastic waist belt 16 is divided into a central portion 25 connected to the chassis 15 and a belt extending portion 26 extending outward in the lateral direction X from both side edges 15 c and 15 d of the rear end area 52 of the chassis 15 for convenience of description. Be done.
  • the fastener portion 27 is located on the skin-facing surface of the retaining tab 22, and the non-skin-facing surface of the retaining tab 24 is located the fastener receiving portion 28 to which the fastener portion 27 is separably secured.
  • the fastener portion 27 and the fastener receiving portion 28 formed of a loop or the like constitute a first fastening means 17 for releasably connecting both side edges of the elastic waist belt 16 to each other.
  • the elastic panel 20 includes a first sheet 31 located on the skin facing surface side and a second sheet 32 located on the non-skin facing surface side, both sheets 31 and 32 being Are bonded to each other via, for example, a hot melt adhesive (not shown) applied to any one of the opposite surfaces of the A plurality of waist elastic bodies 33 extending in the lateral direction X are disposed between the first and second sheets 31 and 32, whereby the elastic panel 20 is elastically elasticized so as to be stretchable in at least the lateral direction X. .
  • the elastic panel 20 intersects the rear end area 52 of the chassis 15 and extends continuously from the both side edges 15 c and 15 d to the outside in the lateral direction X, and on both sides of the first elastic area 41.
  • the waist elastic body 33 is not disposed in a portion intersecting the rear end region 52 of the liquid absorbent structure 14 in the chassis 15, and the central inelastic region 43 is It is defined.
  • the waist elastic body 33 is formed with a rear central elastic region 44 connected in the lateral direction X outside the central inelastic region 43 in the longitudinal direction Y.
  • the first elastic area 41 and the second elastic area 42 are separated in the lateral direction X, and the inelastic area 40 is located between them, as described later.
  • such a configuration may be provided in at least one of the belt extension parts 26 and the inelastic area 40 may not be located in the other belt extension part 26.
  • the rear central elastic region 44 forms a space in a state in which the central inelastic region 43 and the portion of the straight rear central elastic region 44 do not exist, and the first and second sheets 31, A piece obtained by forming a separate sheet piece from 32 and arranging an elastic body separate from the waist elastic body 33 outside the longitudinal direction Y of the sheet piece is provided to intervene in the space. be able to.
  • the expansion stress by the rear central elastic area 44 is made higher than that of the first and second elastic areas 41, 42, and the elastic waist is
  • the belt 16 can also be fitted to the wearer's back.
  • the first and second elastic regions 41 and 42 may be stretchable sheets in addition to thread-like, string-like or strand-like elastic bodies, or the entire elastic panel 20 may be stretchable sheets.
  • the “inelastic region” is a region where the elastic force of the waist elastic body 33 made of thread-like, string-like, strand-like or sheet-like elastic material is not developed, and substantially the waist elastic body 33 is It means a region where no elastic part (stretching functional part) is provided.
  • the snapback (a non-fixed portion of the elastic member not fixed to the sheet is cut and the vicinity of the joint end fixed to the first and second sheets 31 and 32 by its own shrinkage) It can be said that even if the portion returned to the end extends to the inelastic region, the after-mentioned effects can be produced by forming the inelastic region in the elastic panel 20. Further, as a method of defining the non-stretchable area, in addition to the snapback, the waist elastic body 33 is fixed in the non-elastic area, and the elastic force is not expressed with the first and second sheets 31 and 32. Multiple cutting in the lateral direction X may be performed.
  • the first and second sheets 31, 32 can be formed, for example, of a liquid-impervious SMS (spunbond, meltblown, spunbond) fibrous nonwoven fabric or spunbond nonwoven fabric having a weight of about 10 to 20 g / m 2 .
  • the waist elastic body 33 has a plurality of thread-like, strand or string-like elasticity with a fineness of about 300 to 1200 dtex, an elongation ratio of about 1.5 to 3.5 times, and a separation dimension (pitch) of about 5 to 15 mm in the longitudinal direction Y. It can be formed of a material.
  • the retaining tab 22 has a substantially trapezoidal shape that is convex outward in the lateral direction X, and for example, two sheets 46 of a non-stretchable non-woven fabric and / or a plastic sheet having a mass of about 20 to 60 g / m 2. , 47 are formed on top of each other.
  • the inner part of the sheet 46 forming the retaining tab 22 is joined to the non-skin facing surface of one side edge of the first sheet 31, and the inner part of the sheet 47 is non-skin facing one surface of the second sheet 32
  • the two sheets 46 and 47 are joined via a known joining means such as a hot melt adhesive or a thermal welding means with the side edges of the elastic panel 20 interposed between the both sheets 46 and 47 joined to the surface. Be done.
  • the retention tab 22 is preferably formed of a sheet material that is more rigid than the first and second sheets 31, 32 and is more rigid than the elastic panel 20. Therefore, the planarity of the fastener portion 27 is secured, and there is no possibility that the fastener portion 27 is deformed during the wearing operation to lower the fixing strength with the retaining tab 24.
  • the retention tab 24 has a rectangular shape extending in the lateral direction X from the elastic panel 20, and preferably, two sheets of non-stretchable non-woven fabric and / or plastic sheet, preferably having a mass of about 20 to 60 g / m 2
  • the sheet 48, 49 of the The inner portion of the sheet 48 forming the dominating tab 24 is joined to the non-skin facing surface of the other side edge of the first sheet 31, and the inner portion of the sheet 49 is the non-skin of the other side edge of the second sheet 32.
  • Both sheets 46 and 47 are joined via a known joining means such as a hot melt adhesive or a thermal welding means, with the side edges of the elastic panel being interposed between the two sheets 48 and 49, which are joined to the opposite surface. It is joined.
  • the retention tab 24, like the retention tab 22, is preferably formed from a sheet material that is more rigid than the first and second sheets 31, 32 and has a higher rigidity than the elastic panel 20. Therefore, since the planarity of the fastener receiving portion 28 positioned on the retention tab 24 is maintained, the fastener receiving portion 28 is deformed during the wearing operation to reduce the area of fastening with the fastener portion 27, There is no fear that their retention strength will decrease.
  • the chassis 15 extends in the longitudinal direction Y between the front and rear end edges 15a and 15b, which extends straight in the lateral direction X, and on both side edges 15c and 15d, the center of which is concavely curved inward.
  • Have a longitudinal shape defined by The chassis 15 is further located between the cover sheet 50, the front end area 51 located in the front waist area 11, the rear end area 52 located in the rear waist area 12, and the front and rear end areas 51 and 52.
  • an intermediate portion 53 located on the The cover sheet 50 is formed of a liquid-impervious fibrous nonwoven sheet, an air-permeable and liquid-impervious plastic film, or a laminate thereof.
  • the cover sheet 50 has a main portion 56 in which the liquid absorbing structure 14 is disposed, and both side portions 57 positioned on both sides in the lateral direction X, and the both side portions 57 are bent inward and the main portion It is fixed at 56.
  • the both side portions 57 are folded between the front and rear fixed ends 60 and 61 fixed to the main body 56 via the bonding area 58 to which the hot melt adhesive is applied and the front and rear fixed ends 60 and 61, for example.
  • It has a fixed side portion 63 extending in the longitudinal direction Y along the curved portion (both side edges 15c and 15d of the chassis 15).
  • the fixed side portions 63 of the both side portions 57 are formed in a concave shape outward in the lateral direction X at the central portion, and a plurality of threads or strings are formed along the concave side edges (leg opening edges) 15c, 15d.
  • a strand-like leg elastic body 62 is disposed so as to be stretchable.
  • leg elastic body 62 in the fixed side 63 is continuous, when the leg elastic body 62 is cut together with the fixed side 63, the cut site is generated, and there is no cut site here. There is no risk that the cutting site will touch the wearer's thighs to stimulate or part of them will come out. Also, when the concave side edges 15c, 15d are formed by cutting the fixed side where they are located, the cut line is made into a shape that is curved more gently and gently, so that the leg elasticity of the entire crotch area 13 is obtained.
  • the body 62 may be arranged.
  • a sleeve-like portion is formed by folding back the inner edge of each side portion 57, and in the sleeve-like portion, a plurality of thread-like, string-like or strand-like cuff elastic bodies 64 extending straight in the longitudinal direction Y are formed. It is fixed to be contractible under extension.
  • the sleeve-like portion is separated from the skin-facing surface of the main portion 56 by the contraction action of the cuff elastic body 64 in the worn state of the diaper 10, and a pair of barrier cuffs 57a for preventing lateral leakage of excrement is formed.
  • the leg elastic body 62 and the cuff elastic body 64 can be made of, for example, an elastic material having a fineness of 470 to 940 dtex and an expansion ratio of about 1.5 to 2.8.
  • the leg opening edge fits the wearer's thigh, and the cuff elastic body 64 fits the barrier cuff 57a to the wearer's thigh, so waste is excreted. Side leakage can be reliably prevented.
  • the diaper 10 is pulled up / down in the pants form, there is no fear that the leg opening edge may be bent or twisted.
  • the liquid-absorbent structure 14 is fixed to the skin-facing surface of the main part 56 of the cover sheet 50 via, for example, a hot melt adhesive, and formed from the liquid-absorbent layer 65 and the liquid-permeable sheet. And a body-side liner 66 covering at least the skin-facing surface side.
  • Absorbent layer 65 is a so-called superabsorbent polymer particle (SAP) which is water-insoluble and has an absorbency of at least 10 times its own weight, absorbent formed from wood fluff pulp, a mixture optionally containing a few optionally thermoplastic fibers It is formed by encapsulating the sexing core with a liquid permeable sheet such as a hydrophilic SMS nonwoven.
  • a liquid-impervious barrier sheet 67 larger than its outer dimension is disposed on the bottom of the liquid-absorbent structure 14.
  • the chassis 15 has a connecting panel 68 which extends in the lateral direction X along the front end edge 11a in the front waist area 11 and is arranged to cross the front end areas of both barrier cuffs 57a.
  • the connection panel 68 has an inner surface sheet 70 located on the skin-facing surface side, an outer surface sheet 71 located on the non-skin-facing surface side, and a filament, strand, or string attached shrinkably between them.
  • an elastic body 72 of The connection panel 68 includes a front central elastic region 73 in which the elastic body 72 is disposed, non-elastic both side portions located on both sides in the lateral direction X of the front central elastic region 73, and skin opposing surfaces on both sides. And a pair of fastener portions 74 formed of hooks or the like.
  • a non-skin facing surface of the retention tab 24 of the elastic waist belt 16 is a fastener receiving part formed of a loop or the like in which the fastener part 27 of the retaining tab 22 is separably retained.
  • a fastener receiving portion 75 formed of a loop or the like is disposed on the non-skin facing surface side of the side non-stretchable area 40, on which the fastener portion 74 of the connection panel 68 is detachably fixed. Ru.
  • the fastener portion 74 and the fastener receiving portion 75 constitute a second fastening means 18 for connecting the front end area 51 of the chassis 15 to the elastic waist belt 16.
  • the fastener portions 27, 74 are formed of a relatively rigid and tensile sheet material such as a plastic film, and have hooks of mechanical fasteners. Also, in the case where the outer surfaces of the retention tab 24 and the belt extension 26 where the fastener portions 27 and 74 are retained are formed of a plastic film, etc., the pressure-sensitive adhesive is replaced with the hook elements. It can also be applied and formed, in which case the surface is coated with a silicone coated separator to protect the fastener portion.
  • the fastener receiving portions 28 and 75 are mechanical formed on the surface of the base sheet, and the base sheet formed of a sheet material having relatively high rigidity and tensile strength such as plastic film, fiber non-woven fabric, and laminate thereof. Formed from the loop element of the fastener.
  • the base sheet is formed of a non-woven fabric, it may not have mechanical loop elements, and when the fastener portions 27 and 74 have hook elements, the retention tab It is also possible to form the sheet 49 forming the outer surface and the second sheet 32 forming the outer surface of the belt extension 26 from a fibrous non-woven fabric, and to fasten the fastener portions 27 and 74 directly to the sheet.
  • the fastening means 17 and 18 may be any ones having a pair of fastening elements which can be separably attached to each other, and the fastener portions 27 and 74 may be loop groups of mechanical fasteners.
  • the fastener receiving portions 28 and 75 may have hook groups, and the connection by the first and second fastening means 17 and 18 may be made by their mutual engagement.
  • the skin-facing surface of the elastic waist belt 16 is placed on the back side, and the wearer himself or a wearing assistant wears it. Grasping both belt extensions 26 of the elastic waist belt 16 and pulling them so as to wrap them around the waist from the back to the belly of the wearer, the skin-facing surface of the retention tab 22 is retained They are superimposed on one another so as to abut the non-skin facing surface of the tab 24 and the fastener portion 27 is retained in the fastener receiving portion 28.
  • the front end area (front waist area 11) 51 of the chassis 15 is grasped and the front waist area 11 is pulled from the thigh (forward or backward).
  • the diaper 10 is in the form of a pant by fixing the fastener portion 74 located on the skin-facing surface side of the front end area 51 to the fastener receiving portion 75 located opposite to it.
  • the elastic waist belt 16 is wound around the waist of the wearer by the fastening of the first fastening means 17 and then the front end region 51 of the chassis 15 is belted Since it can be attached to the outer surface of the extension part 26, the wearing operation can be easily performed even when the wearer is standing.
  • the diaper 10 having the pants form can be pulled down to the foot with clothes such as trousers in the same state, and after excreted, when standing up from the state sitting on the toilet seat Since the diaper 10 in the state of being pulled down to the foot can be pulled up with the clothes and worn, it is possible to carry out the excretion operation smoothly.
  • the wearer when the wearer is an elderly person, unlike the pants-type diaper, the user can perform the wearing operation in the standing / recumbent position without passing the leg through the leg opening, and thus the diaper at the time of excretion etc. 10 can be raised and lowered together with the clothes in the form of a pant, so it is possible to encourage the elderly to excrete on their own. That is, elderly people who can stand up on their own are relieved of the inconvenience of removing the diaper 10 at the time of excretion, so that they can excrete in the toilet alone at night even without the attendants of wearing assistants or assistants. You can go out without worrying about excretion during the day, and you can live daily life more actively.
  • the wearing assistant can raise and lower the diaper 10 together with the clothes such as the pants at the time of excretion, so it is usually removed completely from the body at the time of excretion.
  • the time during which the negative part is exposed is shorter than that of the open-type diaper, and the embarrassment due to the negative part exposure is reduced.
  • the dimension in the lateral direction X of the elastic region is, for example, about 50% or more with respect to the dimension L in the lateral direction X, preferably the first elastic region 41. Is preferably about 30 to 80% of the dimension L, for example, and about 5 to 55% of the second elastic region 42 in the lateral direction X, for example .
  • the dimensional ratio of the elastic region to the dimension L in the lateral direction X of each belt extension portion 26 is 50% or more, as shown in FIG. Since the waist opening edge can be extended and expanded while being rolled down, the pull-up / pull-down operation of the diaper 10 at the time of excretion becomes easy.
  • the elastic waist belt 16 is formed with a sufficiently large elastic area, while the inelastic area 40 is provided between the elastic waist belt 16 and the first and second elastic areas 41 and 42 so that the fastening force of the second fastening means 18 can be reduced. Deterioration is prevented. That is, in order to stably fasten the fastener portion 74 in the fastener receiving portion 75, a sufficient area for engagement between the hook element of the fastener portion 74 and the loop element of the fastener receiving portion 75 can be secured.
  • the fastener receiving portion 75 itself is required to maintain flatness, and the fastener receiving portion 75 is located in the first or second elastic region 41, 42, and is deformed along with its expansion and contraction to make the surface uneven.
  • the loop element is not fastened to the hook element in the recess, and the fastening strength between the fastener portion 74 and the fastener receiving portion 75 may be reduced.
  • positioning of the fastener receiving portion 75 in the inelastic region 40 maintains flatness without deformation of the fastener receiving portion 75 due to contraction of the first and second elastic regions 41 and 42. Therefore, the second fastening means 18 can exert the required fastening force.
  • the area of the target area (fastener receiving portion) is formed larger than that of the hook material (fastener portion).
  • the dimension W1 in the lateral direction X of the fastener portion 74 is larger than the dimension W2 in the lateral direction X of the fastener receiving portion 75. Therefore, when the fastener portion 74 is fastened to the fastener receiving portion 75, a part of the fastener portion 74 does not overlap with the fastener receiving portion 75, but even in such a fastening mode, the diaper 10 is pulled up / down. It is possible to exert sufficient fastening strength to the extent that operation can be performed.
  • the size of the fastener receiving portion 75 is set to a necessary and sufficient size while sufficiently securing the range of the elastic region in the elastic waist belt 16, the excellent operability and sufficientness of the diaper 10 can be obtained. It can be made compatible with the fixing strength.
  • the wearer / wearing assistant holds both sides of the front waist region 11 with both hands when wearing the diaper 10, and the entire front waist region 11
  • the front waist region 11 By overlapping the front end area of the chassis 15 on the non-skin opposing surface of the elastic waist belt 16 while stretching the front central elastic area 73 in the lateral direction X so as to prevent wrinkles, interlocking with the expansion and contraction of the elastic waist belt 16
  • the front waist region 11 can be expanded and contracted, and a virtual elastic band is formed all around the waist of the wearer.
  • the front waist region 11 is expanded and contracted in accordance with the movement of the wearer's body, so that wrinkles that impair the appearance occur on the surface of the front waist region 11, and the front waist region 11 and the wearer's body There is no gap between them that causes leakage of excrement.
  • the elastic waist belt 16 has a shape in which the central portion is convex toward the horizontal axis Q, and a buttocks cover portion that covers the buttocks of the wearer in the worn state Including 80.
  • the buttocks cover 80 includes the first and second sheets 31 and 32 and a buttocks elastic body 81 formed of a plurality of thread-like, string-like or strand-like elastic materials fixed in an expandable manner therebetween, and the buttocks And a heel elastic region 82 in which the elastic body 81 is disposed.
  • the buttocks elastic body 81 extends diagonally to the longitudinal axis P on both sides of the liquid absorbent structure 14.
  • the buttocks cover 80 can be elasticized by the buttocks elastic body 81 to fit the buttocks of the wearer and to have an appearance like an undergarment in a rear view.
  • the rear end region 52 of the chassis 15 and a part of the intermediate portion 53 on the rear waist region 12 side are joined to the buttocks cover portion 80 via, for example, a joining region (not shown) coated with a hot melt adhesive. Ru.
  • no buttock elastic member 81 is disposed at the central portion of buttocks cover portion 80, and a rear central elastic region 44, a first elastic region 41, and buttocks are provided at the central portion of elastic waist belt 16.
  • a central inelastic area 85 surrounded by the elastic area 82 is located. Since the central inelastic region 85 is formed, the contraction of the waist elastic body 33 and the buttock elastic body 81 does not directly act on the rear end region of the liquid absorbing structure 14 intersecting the elastic waist belt 16. There is no possibility that the rear end area is deformed or wrinkles are formed to reduce its absorption performance.
  • the waist cover portion 80 is made elastic by extending a part of the waist elastic body 33 inward so as to incline with respect to the longitudinal axis P without using the waist elastic body 81.
  • the buttocks cover 80 may be formed of a separate panel from the central portion 25 and the belt extension 26.
  • An illustration sheet 88 having a plurality of decorative elements 87 visible from the outside is disposed between the sheet 32 and the sheet 32.
  • the site where the fastener receiving portion 28, 75 is disposed is a non-elastic region, which is different from the first and second elastic regions 41, 42 in touch etc.
  • the wearer of the diaper 10 and the wearing assistant In particular, the position and size of the fastener receiving portion 75 located between the first elastic region 41 and the second elastic region 42 can not be grasped.
  • the illustration sheet 88 can be formed from a fiber non-woven sheet or a plastic sheet, and as the decorative element 87, in addition to various known patterns, for example, coloring indication other than white (coloring), character, trademark, product quality indication and size Display etc. can be used.
  • the absorbent layer 65 of the absorbent structure 14 mainly includes an absorbent core formed of superabsorbent polymer particles, and the absorbent core, for example, A first sheet 91 formed of a liquid-permeable fibrous nonwoven fabric having a mass of about 8.0 to 15.0 g / m 2 , preferably a mass of about 10.0 g / m 2 ; A fibrous non-woven fabric such as a liquid-permeable or liquid-impermeable SMS fiber non-woven fabric having a weight of about 8.0 to 15.0 g / m 2 , preferably 11.0 g / m 2 , or an impervious plastic film And the formed second sheet 92.
  • a first sheet 91 formed of a liquid-permeable fibrous nonwoven fabric having a mass of about 8.0 to 15.0 g / m 2 , preferably a mass of about 10.0 g / m 2 ;
  • a fibrous non-woven fabric such as a liquid-permeable or liquid-imper
  • the absorbent layer 65 further includes a substantially rectangular absorption area 93 separated by a given dimension in the longitudinal direction Y, in which the absorbent core is disposed, and the absorbent core is not substantially disposed. And a non-liquid absorption area (seal portion) 94 formed to surround the liquid absorption area.
  • the liquid absorption area 93 is divided into ten areas, but the area and the number of areas can be appropriately changed according to the absorption performance required of the liquid absorption structure 14, for example , 10 or more, or may be formed from only one area extending all over the liquid absorbing structure 14.
  • the absorbent polymer particles of the mass about 40 ⁇ 280g / m 2 95 is fixed almost uniformly.
  • the absorbent core may contain not only the absorbent polymer particles 95 but also known materials such as fluff pulp and optionally thermoplastic fibers at a relatively low mixing ratio. You may include in a part.
  • the hot melt adhesive 96 various known ones can be used, but after the absorption of the body fluid, in order to prevent the absorptive polymer particles 95 from peeling off from the first sheet 91, it is made hydrophobic. It is preferable to use an adhesive having one.
  • the absorbent core of the liquid absorbent layer 65 is formed only of the absorbent polymer particles 95 and the sheet member that encloses the absorbent polymer particles 95
  • the absorbent core of the liquid absorbent structure 14 is composed of the absorbent polymer particles. It is thinner than when it is formed from a mixture of 95 and fluff pulp. Therefore, even if the wearer is in a state of being bent forward while wearing the diaper 10, the front waist region 11 does not get stiff and deforms flexibly according to the movement of the wearer's body, so that the wearing feeling is excellent.
  • the leg elastic body 62 is cut together with the fixed side portion 63.
  • the fixed side portion 63 is cut in a concave shape, so that the dimension in the lateral direction X between the outer edges of the fixed side portion 63 becomes smaller, and wear The fixed side 63 can be prevented from being caught when the person passes the leg through the leg opening, and the fit to the thigh can be improved.
  • the bonding area 58 at the fixed side 63 has a concave shape toward the outside in the lateral direction X, and a non-fixed area between the side edge 15 c and the bonding area 58. 98 are formed.
  • the relatively high rigidity portion where the bonding area 58 is located is not in direct contact with the skin, so that the skin contact can be further improved.
  • the disclosure of the present invention described above can be organized at least into the following items. It has a crotch area located between the front waist area, the front waist area, the front waist area, and the front and rear waist areas, the skin facing surface and the non-skin facing surface, the front waist area, the rear waist area, and the horizontal direction parallel to the vertical axis.
  • a chassis having at least a liquid absorbing structure disposed in the crotch region, a front end region located in the front waist region, and a rear end region located in the rear waist region; and a rear end region of the chassis
  • An open-type disposable diaper including an elastic waist belt, the first fastening means for connecting the side edges of the elastic waist belt to each other, and the elastic waist belt connected via the first fastening means
  • the elastic waist belt further includes second fastening means for retaining the front end area of the chassis on the non-skin facing surface, and the elastic waist belt has both side edges of the rear end area of the chassis.
  • a pair of belt extensions extending outward in the lateral direction, and an elastic region which is stretchable in the lateral direction, at least one of the belt extensions being in the lateral direction from the side edge of the liquid absorbing structure
  • a first elastic area extending outward in a direction, a second elastic area spaced apart and opposed in the lateral direction with the first elastic area, and an inelastic area located between the first and second elastic areas
  • the second fastening means includes a first retaining portion located on the skin facing surface side of the front end area of the chassis, and a second retaining portion located on the non-skin facing surface side of the inelastic region.
  • the above invention can include at least the following embodiments.
  • the dimension in the lateral direction of the elastic region of each belt extension is about 50% or more of the dimension in the lateral direction of each belt extension.
  • a front central elastic region which can be expanded and contracted in the lateral direction is disposed between the first retaining portions of the second fastening means.
  • the dimension of the first retaining portion in the lateral direction is larger than the dimension of the second retaining portion in the lateral direction.
  • the chassis has the longitudinally extending middle portion located between the front and rear end regions, and both side edges of the middle portion have a concave shape.
  • a leg elastic body is disposed so as to be stretchable along a leg opening edge in a portion of the chassis located on the outer side in the lateral direction of the liquid absorbent structure.
  • the elastic waist belt includes an elastic panel on which the elastic region is disposed, an inelastic retaining tab attached to one side of the elastic panel, and a non-rigidity tab attached to the other side.
  • the first fastening means includes a third retaining portion located on the skin-facing surface side of the retaining tab and a fourth fastening member located on the non-skin-facing surface side of the retention tab. It consists of parts.
  • the elastic waist belt has a central portion located between the pair of belt extension portions and connected with the chassis, and inelastic at a portion of the central portion overlapping with the liquid suction structure. The area is located.
  • the elastic waist belt has a shape that is convex toward the horizontal axis, and crosses the liquid absorbing structure on the rear waist region side of the crotch region and is laterally outside the both side edges And an elastic buttock cover portion extending to the (9)
  • a sheet having a visible decorative element is disposed in the fastener receiving portion constituting the first and second fastening means.
  • the liquid absorbing structure includes a liquid permeable body-side liner and a liquid absorbing layer, and the liquid absorbing layer includes a liquid permeable first sheet and a liquid permeable or liquid impermeable sheet. A second sheet and absorbent polymer particles interposed between the sheets.
  • the liquid absorbing layer includes a plurality of non-liquid absorbing areas in which the first sheet and the second sheet are joined to each other, and a plurality of the absorbent polymer particles enclosed by the non liquid absorbing area.
  • the chassis includes a cover sheet, and the cover sheet has a main body portion on which the liquid absorbing structure is disposed, and both side portions which are positioned on both sides of the main body portion and are bent inward.
  • the two side portions are a front and rear fixed end fixed to the main body, a fixed side located between the front and rear fixed ends, and a leg elastic body extending concavely along the leg opening edge Have. (13)
  • a bonding area for fixing the fixed side portion and the main body portion is concave outward in the lateral direction, and a non-fixed area is located between the bonding area and the outer edge of the chassis. .

Abstract

La présente invention concerne une couche jetable de type ouvert qui facilite l'opération de mise en place et de retrait de la couche sur un utilisateur en position debout et dans laquelle une zone de ceinture avant se fixe de façon stable au cours de l'opération de mise en place de la couche ainsi que pendant le port. Au moins une des parties d'extension de ceinture (26) d'une ceinture de taille élastique (16) comprend une première zone élastique (41) qui s'étend vers l'extérieur dans une direction latérale (X) depuis un bord latéral d'une structure absorbant les liquides (14), une deuxième zone élastique (42) qui est espacée de et est opposée à la première zone élastique (41) dans la direction latérale, et une zone non élastique (40) qui est située entre les première et deuxième zones élastiques. Un deuxième moyen de fixation (18) est composé d'une première partie de fixation (74), qui est située sur un côté face à la peau d'une zone de bord avant (51) d'un châssis (15) et une deuxième partie de fixation (75) qui est située sur un côté ne faisant pas face à la peau de la zone non élastique.
PCT/JP2013/077466 2012-10-12 2013-10-09 Couche jetable de type ouvert WO2014057974A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-227521 2012-10-12
JP2012227521A JP6172908B2 (ja) 2012-10-12 2012-10-12 開放型の使い捨ておむつ

Publications (1)

Publication Number Publication Date
WO2014057974A1 true WO2014057974A1 (fr) 2014-04-17

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PCT/JP2013/077466 WO2014057974A1 (fr) 2012-10-12 2013-10-09 Couche jetable de type ouvert

Country Status (2)

Country Link
JP (1) JP6172908B2 (fr)
WO (1) WO2014057974A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104968311A (zh) * 2013-02-01 2015-10-07 宝洁公司 具有隔离片的尿布
WO2022186740A1 (fr) * 2021-03-02 2022-09-09 Essity Hygiene And Health Aktiebolag Article d'hygiène absorbant jetable

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0220529U (fr) * 1988-07-25 1990-02-09
JPH09154884A (ja) * 1995-12-04 1997-06-17 Kao Corp 使い捨ておむつ
US20020151858A1 (en) * 1998-06-12 2002-10-17 Hamzeh Karami Absorbent articles for various torso sizes
JP2005270359A (ja) * 2004-03-25 2005-10-06 Livedo Corporation 開閉式使い捨てパンツ
JP2006081720A (ja) * 2004-09-16 2006-03-30 Three M Innovative Properties Co メカニカルファスナー用雌材及び使い捨て紙おむつ
JP2008055001A (ja) * 2006-08-31 2008-03-13 Daio Paper Corp 紙おむつ
JP2009540918A (ja) * 2006-06-21 2009-11-26 エスセーアー・ハイジーン・プロダクツ・アーベー ベルト付吸収性衣類
JP2012176227A (ja) * 2011-01-31 2012-09-13 Unicharm Corp 使い捨て着用物品
WO2012137519A1 (fr) * 2011-04-08 2012-10-11 Unicharm Corporation Article absorbant jetable

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0220529U (fr) * 1988-07-25 1990-02-09
JPH09154884A (ja) * 1995-12-04 1997-06-17 Kao Corp 使い捨ておむつ
US20020151858A1 (en) * 1998-06-12 2002-10-17 Hamzeh Karami Absorbent articles for various torso sizes
JP2005270359A (ja) * 2004-03-25 2005-10-06 Livedo Corporation 開閉式使い捨てパンツ
JP2006081720A (ja) * 2004-09-16 2006-03-30 Three M Innovative Properties Co メカニカルファスナー用雌材及び使い捨て紙おむつ
JP2009540918A (ja) * 2006-06-21 2009-11-26 エスセーアー・ハイジーン・プロダクツ・アーベー ベルト付吸収性衣類
JP2008055001A (ja) * 2006-08-31 2008-03-13 Daio Paper Corp 紙おむつ
JP2012176227A (ja) * 2011-01-31 2012-09-13 Unicharm Corp 使い捨て着用物品
WO2012137519A1 (fr) * 2011-04-08 2012-10-11 Unicharm Corporation Article absorbant jetable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104968311A (zh) * 2013-02-01 2015-10-07 宝洁公司 具有隔离片的尿布
WO2022186740A1 (fr) * 2021-03-02 2022-09-09 Essity Hygiene And Health Aktiebolag Article d'hygiène absorbant jetable

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