Title:
STRETCHABLE SHEET, DISPOSABLE ARTICLE USING STRETCHABLE SHEET, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/155765
Kind Code:
A1
Abstract:
The present invention provides a stretchable sheet in which the stretching characteristics vary along the width direction thereof, a disposable wearing article using the stretchable sheet in which the stretching characteristics along the width direction, and a method for manufacturing the same. According to the present invention, an elastic resin material having a main component of a thermoplastic elastic resin is extruded into a sheet shape on a die and made to have a thickness that varies along the width direction, and then is cooled, to a temperature range in which the elastic resin material elastically deforms, to form a sheet body (3) that varies in thickness along the width direction, and a stretchable sheet (8) is formed by laminating and joining base sheets (4, 6) to the main surface on at least one side of the sheet body (3). The sheet body (3) includes at least two first and second regions (3m; 3s, 3t) which are adjacent to each other in the width direction, and the thicknesses of the second regions (3s, 3t) are greater than the thicknesses of the first regions (3m). In a disposable wearable article, the stretchable sheet (8) is disposed so that at least a portion of the second regions (3s, 3t) are closer to an opening around a body or an opening around a leg of the disposable wearable article than the first regions (3m).
Inventors:
NAKAMURA HIDEYUKI (JP)
KOSHIJIMA MIWA (JP)
KOSHIJIMA MIWA (JP)
Application Number:
PCT/JP2018/046144
Publication Date:
August 15, 2019
Filing Date:
December 14, 2018
Export Citation:
Assignee:
ZUIKO CORP (JP)
International Classes:
B32B3/02; A61F13/15; A61F13/49; B29C48/31; B32B3/04; B32B3/08; B32B25/10; B32B27/00
Domestic Patent References:
| WO2015056711A1 | 2015-04-23 | |||
| WO2015025760A1 | 2015-02-26 |
Foreign References:
| JP2010503781A | 2010-02-04 | |||
| JP2016073827A | 2016-05-12 | |||
| JP2012235806A | 2012-12-06 | |||
| JP2015529165A | 2015-10-05 | |||
| JP3054930B2 | 2000-06-19 |
Other References:
See also references of EP 3750704A4
Attorney, Agent or Firm:
YAMAMOTO Toshinori (JP)
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