Title:
MULTILAYER-STRUCTURED SPUN YARN, METHOD FOR PRODUCING SAME, HEAT-RESISTANT CLOTH, AND HEAT-RESISTANT PROTECTIVE GARMENT
Document Type and Number:
WIPO Patent Application WO/2024/013790
Kind Code:
A1
Abstract:
Provided is a multilayer-structured spun yarn (20) in which each of core component fibers (21) comprises a p-aramid fiber draft-cut yarn and each of sheath component fibers (25) comprises a polybenzimidazol fiber and an aramid fiber, in which the aramid fiber in the sheath component fibers (25) comprises a p-aramid fiber and a m-aramid fiber, and, when the amount of the sheath component fibers (25) is defined as 100% by mass, the polybenzimidazol fiber, the p-aramid fiber and the m-aramid fiber are blended in amounts of 50 to 65% by mass, 18 to 35% by mass and 3 to 18% by mass, respectively. As one embodiment, the multilayer-structured spun yarn (20) has such a configuration that some of the sheath component fibers (25) are surface-layer-wound fibers (23) and the remaining fibers of the sheath component fibers (25) are arranged in the direction of the length of the multilayer-structured spun yarns (20), the surface-layer-wound fibers (23) are in such an actual twisted form that the fibers are twisted in one direction and bundle the fibers together. According to this configuration, a multilayer-structured spun yarn having improved frictional strength, burning/bursting strength and discoloration resistance to washing and friction, a method for producing the multilayer-structured spun yarn, a heat-resistant cloth, and a heat-resistant protective garment are provided.
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Inventors:
OKABE TAKAYUKI
TAKATA TAKUYA
TASAKI KEITA
YASUDA TOMONORI
TAKATA TAKUYA
TASAKI KEITA
YASUDA TOMONORI
Application Number:
PCT/JP2022/027218
Publication Date:
January 18, 2024
Filing Date:
July 11, 2022
Export Citation:
Assignee:
THE JAPAN WOOL TEXTILE CO LTD (JP)
International Classes:
D02G3/36; A41D31/00; A41D31/08; D02G3/04
Foreign References:
| JP2007506006A | 2007-03-15 | |||
| CN110725032A | 2020-01-24 | |||
| JP2019157279A | 2019-09-19 | |||
| JP2016176149A | 2016-10-06 | |||
| JP2012219405A | 2012-11-12 | |||
| JP2022118975A | 2022-08-16 |
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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