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Patent Searching and Data


Title:
CRIMPED FIBER, SPUNBONDED NONWOVEN FABRIC, AND METHOD FOR MANUFACTURING THESE
Document Type and Number:
WIPO Patent Application WO/2019/021809
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a crimped fiber and a spun-bonded nonwoven fabric that are inexpensive and have exceptional bulkiness, as well as a crimped fiber manufacturing method and a spun-bonded nonwoven fabric manufacturing method in which it is possible to manufacture the crimped fiber on an industrial scale by a method that excels in productivity and safety. In order to achieve said purpose, this crimped fiber has the following composition. Specifically, the crimped fiber has polyolefin as a main component, is configured substantially from a single raw material, and has an interface present in a cross section perpendicular to the fiber length direction.

Inventors:
ENDO MASANORI (JP)
KATSUTA HIROO (JP)
HANE RYOICHI (JP)
FUNATSU YOSHITSUGU (JP)
NISHIMURA MAKOTO (JP)
Application Number:
JP2018/025996
Publication Date:
January 31, 2019
Filing Date:
July 10, 2018
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D01F6/04; D01D5/092; D04H3/007; D04H3/16
Domestic Patent References:
WO1997040216A11997-10-30
Foreign References:
JPS46849B1
JPH05209354A1993-08-20
JPS471195B1
JP2005179787A2005-07-07
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