Title:
CRIMPED YARN HAVING FLAT CROSS-SECTION, METHOD OF MANUFACTURING SAID CRIMPED YARN, AND TEXTILE COMPRISING SAID CRIMPED YARN
Document Type and Number:
WIPO Patent Application WO/2017/221934
Kind Code:
A1
Abstract:
The problem addressed by the present invention is the provision of a crimped yarn having a flat-shaped fiber cross-section and exhibiting a superior crimp rate CC, the provision of a method of manufacturing said crimped yarn at a superior throughput, and the provision of a textile exhibiting superior insulation and coolness even if the density or basis weight is reduced. The problem addressed by the present invention can be solved by: a crimped yarn constituted by a multifilament having a cross-sectional shape with a planarity of 2.0–5.5 and a crimp rate CC of 15–60% in a cross-section perpendicular to the fiber axial direction of the unit fibers; manufacturing a crimped yarn by performing a false twist process, at a false twist coefficient of 16,000–42,000, upon a multifilament having a cross-sectional shape that includes hollow sections in a cross-section perpendicular to the fiber axial direction; and a textile that contains 50–100% by mass of a crimped yarn constituted by a multifilament, has a woven density of 0.40 g/cm3 or less, and has a transmittance of 33% or less for visible light having a wavelength of 400–780 nm, 50–100% by mass of the unit fibers that constitute the multifilament having a flat shape in a cross-section perpendicular to the fiber axial direction, and the planarity of the flat shape being 2.0–5.5.
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Inventors:
IMAKITA JUNYA (JP)
YOKOYAMA JUNICHI (JP)
TAKADA YASUO (JP)
NAKAZAWA YUSUKE (JP)
YAMAOKA TETSUYA (JP)
DOUMAE KAZUHIRO (JP)
OKABE TAKETOSHI (JP)
YOKOYAMA JUNICHI (JP)
TAKADA YASUO (JP)
NAKAZAWA YUSUKE (JP)
YAMAOKA TETSUYA (JP)
DOUMAE KAZUHIRO (JP)
OKABE TAKETOSHI (JP)
Application Number:
PCT/JP2017/022714
Publication Date:
December 28, 2017
Filing Date:
June 20, 2017
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
D02G1/02; D03D15/567; D04B1/16
Domestic Patent References:
| WO2011155524A1 | 2011-12-15 |
Foreign References:
| JP2000064139A | 2000-02-29 | |||
| JPH0770849A | 1995-03-14 | |||
| JP2016113714A | 2016-06-23 |
Attorney, Agent or Firm:
KOBAYASHI, Hitoshi et al. (JP)
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