WO2020003160A2 - Élément oreille de couche, élément feuille et couche - Google Patents

Élément oreille de couche, élément feuille et couche Download PDF

Info

Publication number
WO2020003160A2
WO2020003160A2 PCT/IB2019/055404 IB2019055404W WO2020003160A2 WO 2020003160 A2 WO2020003160 A2 WO 2020003160A2 IB 2019055404 W IB2019055404 W IB 2019055404W WO 2020003160 A2 WO2020003160 A2 WO 2020003160A2
Authority
WO
WIPO (PCT)
Prior art keywords
stretchable
area
nonwoven fabric
elastic
diaper
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/IB2019/055404
Other languages
English (en)
Other versions
WO2020003160A3 (fr
Inventor
Nobuharu ARAI
Hirofumi Hosokawa
Kioshi KUNIHIRO
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.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to EP19826452.5A priority Critical patent/EP3813752A2/fr
Priority to CN201980043692.9A priority patent/CN112384179A/zh
Publication of WO2020003160A2 publication Critical patent/WO2020003160A2/fr
Publication of WO2020003160A3 publication Critical patent/WO2020003160A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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 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
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49014—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the side panels
    • 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
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/4902—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
    • 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
    • A61F13/5622—Supporting or fastening means specially adapted for diapers or the like

Definitions

  • the recipient generally refers to the person who uses the diaper, such as a baby or a care recipient.
  • the user is intended to be a person who performs the attachment of the diaper to the recipient, for example, a parent or a caregiver.
  • the diaper ear part especially it further comprises another non-woven fabric disposed opposite to the non-woven fabric and at least partially laminated on the stretchable film.
  • the other non-woven fabric in the stretchable region is provided with a stretchable portion provided with numerous folds aligned in the stretch direction of the stretchable film.
  • the other non-woven fabric in the low expansion and contraction area may have an expansion/contraction-restricting portion in which the numerous folds are not formed.
  • the state in which the fold (crease) is opened is the extension limit
  • the value obtained by subtracting the reference length before extension from the limit length at the extension limit is the extension amount
  • the elongation coefficient which is the ratio of the amount of elongation divided by the original (reference) length, may be 10% or more and 100% or less, and this is a good option. Setting the elongation percentage of the diaper ear member to this range is further advantageous for improving the mounting performance.
  • the sheet member according to the present embodiment includes a non-woven fabric, an elastic film laminated on at least a part of one side of the non-woven fabric, a stretchable area where at least the non-woven fabric and the elastic film are fixed, low stretch area, which contains at least one part of the non-woven fabric and which is less stretchable than the stretchable area, and also, which is disposed adjacent to the stretchable area in one direction, an engaging part provided in the low elastic region, which is a pair of engaging portions that form a mechanical fastener; the nonwoven fabric of the stretchable part is provided which a plurality of folds arranged in one direction, and the nonwoven fabric in the low stretch region is provided with a stretch limiting portion, in which a plurality of folds are not formed.
  • this sheet member By cutting this sheet member into a desired shape, it is possible to manufacture a number of diaper ear members. In the case of these diaper ear parts, through fitting by appropriate tightening, it is possible to prevent the leakage of urine etc. of the recipient of the adhered diaper, while suppressing the decrease of mobility around the thigh circumference, etc., of the wearer and by that it is possible to improve the recipient wearability properties.
  • the expansion / contraction portion-allowing 41 and the expansion / contraction restricting portion 42 of the second nonwoven fabric 4 are arranged in one direction D assumed as the expansion / contraction direction of the diaper ear member 1 A.
  • the stretchable portion 41 of the second nonwoven fabric 4 is provided with a plurality of folds 43 formed in a pleated shape.
  • a plurality of folds 43 are provided side by side in one direction D, and peaks 43 a and valleys 43b of the plurality of folds 43 alternate along the one direction D.
  • the valleys 43b of the plurality of folds 43 are fixed to the other surface of the stretch film 2, and in the gap between the ridges 43 a and the stretchable film 2 a gap is formed that allows expansion and contraction of the elastic film 2.
  • this resin material it is possible to compound and include a strengthening agent (for example, polyvinyl styrene, polystyrene, poly - a - methyl styrene, polyester, epoxy resin, polyolefin, cumarone - indene resin), viscosity reducing agents, plasticizers, tackifying agents (for example, aliphatic hydrocarbon tackifiers, aromatic hydrocarbon tackifiers, terpene resin tackifiers, hydrogenated terpene resin tackifiers), dyes, pigments, antioxidants, anti-static agents, adhesives, anti-tack agents, slip agents, heat stabilizers, light stabilizers, metal salts, microfibers, etc.
  • a strengthening agent for example, polyvinyl styrene, polystyrene, poly - a - methyl styrene, polyester, epoxy resin, polyolefin, cumarone - indene resin
  • the stretching capability is only supported by the diaper ear part, and the subject H may stretch too much when wearing, and the user may lose the fixed position.
  • the user is often busy, and it is expected that the user can quickly install the diaper at an appropriate position and that the mobility after wearing is high.
  • the diaper ear parts 1 A ⁇ 1C related to the above practical embodiments effects corresponding to this expectation can be exhibited.
  • the structures according to the respective embodiments can be combined and applied to the diaper ear members 1 A to 1C according to the respective embodiments described above.
  • the value obtained by subtracting the length Ba of the stretch area Ra before stretching from the length of the stretch area Ra when stretched in the direction D at tensile strength of 2.0 (N / 25 mm), is the amount of elongation of the stretch area Ra, and it is a good option if the stretch area Ra’s elongation coefficient per unit length, which is the ratio of the amount of extension of the expansion and contraction area Ra to the length Ba of the stretch area prior to the extension, is 100% or more and 500% or less.
  • the state in which the corrugation is expanded is the extension limit of the diaper ear member, and the value obtained by subtracting the reference length of the diaper ear member from the total length of the diaper ear part material at this extension limit is the amount of elongation of the member.

Landscapes

  • 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)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne une partie oreille de couche qui, selon un mode de réalisation, contient un tissu non tissé, un film étirable qui est stratifié en couche sur au moins un côté du tissu non tissé, une région étirable, au moins le tissu non tissé et le film élastique étant fixés et collés, et une zone faiblement étirable, qui comprend au moins une partie du tissu non tissé et dont les propriétés élastiques sont inférieures à celles de la zone élastique et également, qui est située de manière adjacente à la zone élastique et dans la même direction que la zone élastique, le tissu non tissé de la zone élastique étant pourvu d'une partie permettant une extension/contraction (étirable) où de nombreux plis sont disposés alignés dans une direction, et le tissu non tissé de la zone à faible élasticité étant pourvu d'une partie de restriction d'extension/contraction ne contenant pas de multiples plis formés.
PCT/IB2019/055404 2018-06-28 2019-06-26 Élément oreille de couche, élément feuille et couche Ceased WO2020003160A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19826452.5A EP3813752A2 (fr) 2018-06-28 2019-06-26 Élément oreille de couche, élément feuille et couche
CN201980043692.9A CN112384179A (zh) 2018-06-28 2019-06-26 尿布突耳构件、片材构件和尿布

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018123372A JP2020000531A (ja) 2018-06-28 2018-06-28 イヤー部材、シート部材、およびおむつ
JP2018-123372 2018-06-28

Publications (2)

Publication Number Publication Date
WO2020003160A2 true WO2020003160A2 (fr) 2020-01-02
WO2020003160A3 WO2020003160A3 (fr) 2020-04-30

Family

ID=68985907

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2019/055404 Ceased WO2020003160A2 (fr) 2018-06-28 2019-06-26 Élément oreille de couche, élément feuille et couche

Country Status (4)

Country Link
EP (1) EP3813752A2 (fr)
JP (1) JP2020000531A (fr)
CN (1) CN112384179A (fr)
WO (1) WO2020003160A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12364628B2 (en) 2020-05-05 2025-07-22 The Procter & Gamble Company Absorbent articles including front and back waist panels with different stretch characteristics
US12582557B2 (en) 2019-05-31 2026-03-24 The Procter & Gamble Company Method and apparatus for bonding elastic parts under tension to an advancing carrier

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021092606A1 (fr) 2019-11-04 2021-05-14 The Procter & Gamble Company Procédé et appareil de fixation de parties élastiques sous tension à un support en mouvement
WO2021226034A1 (fr) * 2020-05-05 2021-11-11 The Procter & Gamble Company Articles absorbants comprenant des panneaux élastiques améliorés

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10445658B2 (en) * 2015-09-14 2019-10-15 Thomson Reuters Global Resources Unlimited Company Docket search and analytics engine
US20180082389A1 (en) * 2016-09-20 2018-03-22 International Business Machines Corporation Prediction program utilizing sentiment analysis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12582557B2 (en) 2019-05-31 2026-03-24 The Procter & Gamble Company Method and apparatus for bonding elastic parts under tension to an advancing carrier
US12364628B2 (en) 2020-05-05 2025-07-22 The Procter & Gamble Company Absorbent articles including front and back waist panels with different stretch characteristics

Also Published As

Publication number Publication date
WO2020003160A3 (fr) 2020-04-30
EP3813752A2 (fr) 2021-05-05
CN112384179A (zh) 2021-02-19
JP2020000531A (ja) 2020-01-09

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