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1. WO2020246397 - EXPANDABLE/CONTRACTIBLE SHEET, AND ABSORBENT ARTICLE PROVIDED WITH EXPANDABLE/CONTRACTIBLE SHEET

Publication Number WO/2020/246397
Publication Date 10.12.2020
International Application No. PCT/JP2020/021470
International Filing Date 29.05.2020
IPC
A61F 13/51 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
13Bandages or dressings; Absorbent pads
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
51characterised by the outer layers of the pads
A61F 13/49 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
13Bandages or dressings; Absorbent pads
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
45characterised by the shape
49specially adapted to be worn around the waist, e.g. diapers, nappies
B32B 5/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5Layered products characterised by the non-homogeneity or physical structure of a layer
02characterised by structural features of a layer comprising fibres or filaments
04characterised by a layer being specifically extensible by reason of its structure or arrangement
B32B 5/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5Layered products characterised by the non-homogeneity or physical structure of a layer
14characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
B32B 5/22 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5Layered products characterised by the non-homogeneity or physical structure of a layer
22characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous
D04H 1/555 2012.01
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
40from fleeces or layers composed of fibres without existing or potential cohesive properties
54by welding together the fibres, e.g. by partially melting or dissolving
555by ultrasonic heating
Applicants
  • 花王株式会社 KAO CORPORATION [JP]/[JP]
Inventors
  • 辻村 織恵 TSUJIMURA, Orie
  • 岩崎 淳 IWASAKI, Atsushi
  • 南岡 政宏 MINAMIOKA, Masahiro
  • 安藤 賢治 ANDO, Kenji
  • 横松 弘行 YOKOMATSU, Hiroyuki
Agents
  • 特許業務法人翔和国際特許事務所 SHOWA INTERNATIONAL PATENT FIRM
Priority Data
2019-10477404.06.2019JP
2020-08755219.05.2020JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) EXPANDABLE/CONTRACTIBLE SHEET, AND ABSORBENT ARTICLE PROVIDED WITH EXPANDABLE/CONTRACTIBLE SHEET
(FR) FEUILLE EXTENSIBLE/RÉTRACTABLE ET ARTICLE ABSORBANT DOTÉ D'UNE FEUILLE EXTENSIBLE/RÉTRACTABLE
(JA) 伸縮性シート、及び該伸縮性シートを備えた吸収性物品
Abstract
(EN)
The present invention has a first sheet (11), a second sheet (12), and a plurality of elastic members (13) that are disposed in a stretched state between the two sheets (11, 12) and that extend in one direction. The first sheet (11) and the second sheet (12) are joined by a plurality of fusion-bonded parts (15) that are positioned so as to sandwich the elastic members (13) on both sides and that are formed with gaps therebetween along the direction in which the elastic members (13) extend. The elastic members (13) are secured only by friction with the two sheets (11, 12) in a space demarcated by the fusion-bonded parts (15), the first sheet (11), and the second sheet (12). The second sheet (12) has a low-porosity region (20) on the thickness-direction inner side along the entirety of the region between the fusion-bonded parts. In the low-porosity region (20), some of constituent fibers are melted and solidified so that the fibrous shape thereof is lost, and the fibrous shape of the remaining constituent fibers is maintained.
(FR)
La présente invention comprend une première feuille (11), une seconde feuille (12) et une pluralité d'éléments élastiques (13) qui sont disposés dans un état étiré entre les deux feuilles (11, 12) et qui s'étendent dans une direction. La première feuille (11) et la seconde feuille (12) sont reliées par une pluralité de parties liées par fusion (15) qui sont positionnées de façon à enserrer les éléments élastiques (13) sur les deux côtés et qui sont formées avec des espaces entre elles le long de la direction dans laquelle s'étendent les éléments élastiques (13). Les éléments élastiques (13) sont fixés uniquement par frottement avec les deux feuilles (11, 12) dans un espace délimité par les parties liées par fusion (15), la première feuille (11) et la seconde feuille (12). La seconde feuille (12) a une région à faible porosité (20) sur le côté interne dans la direction de l'épaisseur le long de la totalité de la région entre les parties liées par fusion. Dans la région à faible porosité (20), certaines des fibres constitutives sont fondues et solidifiées de telle sorte que sa forme fibreuse soit perdue et la forme fibreuse des fibres constitutives restantes est maintenue.
(JA)
第1シート(11)と、第2シート(12)と、両シート(11,12)間に伸長状態で配置され且つ一方向に延びる複数本の弾性部材(13)とを有している。第1シート(11)と第2シート(12)とは、弾性部材(13)を挟んで両側に位置し且つ該弾性部材(13)の延びる方向に沿って間隔を置いて形成された複数の融着部(15)によって接合されている。弾性部材(13)は、融着部(15)、第1シート(11)、及び第2シート(12)によって画成された空間において、両シート(11,12)との摩擦のみによって固定されている。第2シート(12)は、融着部間全域において、厚み方向内部に低空隙率領域(20)を有している。低空隙率領域(20)では、構成繊維の一部は、繊維形態を喪失して溶融固化した状態となっており、且つ構成繊維の残部は繊維形態が維持されている。
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