Title:
EXPANDABLE/CONTRACTIBLE SHEET, AND ABSORBENT ARTICLE PROVIDED WITH EXPANDABLE/CONTRACTIBLE SHEET
Document Type and Number:
WIPO Patent Application WO/2020/246397
Kind Code:
A1
Abstract:
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.
Inventors:
TSUJIMURA ORIE (JP)
IWASAKI ATSUSHI (JP)
MINAMIOKA MASAHIRO (JP)
ANDO KENJI (JP)
YOKOMATSU HIROYUKI (JP)
IWASAKI ATSUSHI (JP)
MINAMIOKA MASAHIRO (JP)
ANDO KENJI (JP)
YOKOMATSU HIROYUKI (JP)
Application Number:
PCT/JP2020/021470
Publication Date:
December 10, 2020
Filing Date:
May 29, 2020
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
A61F13/51; A61F13/49; B32B5/04; B32B5/14; B32B5/22; D04H1/555
Domestic Patent References:
| WO2005025789A1 | 2005-03-24 | |||
| WO2018154680A1 | 2018-08-30 |
Foreign References:
| JP2017225508A | 2017-12-28 | |||
| JP6495506B1 | 2019-04-03 | |||
| JP2008104853A | 2008-05-08 | |||
| JPH07255779A | 1995-10-09 | |||
| JP2004330777A | 2004-11-25 |
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
Download PDF: