Title:
METHOD FOR PRODUCING PLEATED COMPOSITE EXTENSIBLE MEMBER, AND PLEATED COMPOSITE EXTENSIBLE MEMBER
Document Type and Number:
WIPO Patent Application WO/2018/143445
Kind Code:
A1
Abstract:
The purpose of this invention is, in producing a pleated composite extensible member, to provide a composite extensible member which is flexible, has an agreeable texture, and has a good skin feel, and to firmly fix a first sheet-form nonwoven fabric to a string-form elastic member in a stretched state and a second sheet-form nonwoven fabric. In the transferring step, the first sheet-form nonwoven fabric and the string-form elastic member (rubber thread, etc.) in a stretched state are positioned on the protruding surface side of a pattern roller, and at the position on the pattern roller where the protruding surface is present, hot-melt adhesive is applied to the stretched string-form elastic member and the first sheet-form nonwoven fabric, intermittently in the direction of travel of the stretched string-form elastic member, and in the subsequent nip-roller step, the stretched string-form elastic member and the first sheet-form nonwoven fabric to which hot-melt adhesive was applied in the previous step are firmly affixed to the second sheet-form nonwoven fabric, and a piece of the first sheet-form nonwoven fabric and a piece of the second sheet-form nonwoven fabric are adhered together with hot-melt adhesive applied intermittently to the string-form elastic member at a position corresponding to the position on the pattern roller at which the protruding surface is present. In this extensible composite sheet, the two layers of breather (pleats) are made to face one another, with the valleys of the upward-facing breather (pleats) of the upper nonwoven fabric sheet and the valleys of the downward-facing breather (pleats) of the lower nonwoven fabric sheet fixed together by adhesion in two-dimensional positions, with a plurality of extensible members (rubber thread) between the two nonwoven fabric sheets, and the fixing area provided by two-dimensional positions is a flat shape made by the protruding surface of the pattern roller. In this extensible composite sheet, the fixing area fixed by the adhesion in two-dimensional positions is expanded around the periphery of the applied area corresponding to the protruding surface of the pattern roller, when viewed in plan view.
Inventors:
HIDAKA SHOJI (JP)
Application Number:
PCT/JP2018/003711
Publication Date:
August 09, 2018
Filing Date:
January 29, 2018
Export Citation:
Assignee:
SUN TOOL CORP (JP)
International Classes:
B05D1/26; A61F13/15; B05D1/28; B05D3/00; B05D7/00; B05D7/20; B05D7/24
Domestic Patent References:
| WO2015177943A1 | 2015-11-26 |
Foreign References:
| JP2014233708A | 2014-12-15 | |||
| JP2014207973A | 2014-11-06 | |||
| JPH07213554A | 1995-08-15 |
Attorney, Agent or Firm:
OKAMURA, Fumio (JP)
Download PDF: