Title:
SPUN YARN HAVING MULTILAYER STRUCTURE, AND HEAT-RESISTANT CLOTH AND HEAT-RESISTANT PROTECTIVE CLOTHING EACH USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/171608
Kind Code:
A1
Abstract:
A spun yarn 20 having a multilayer structure, in which a core component 21 is a draft-cut-spun p-aramid fiber yarn, a sheath component 22 contains a polybenzimidazole fiber, wherein the sheath component 22 contains the polybenzimidazole fiber and a p-aramid fiber and is prepared by mix-spinning these fibers together, the mixing ratio of the polybenzimidazole fiber to the p-aramid fiber (i.e., (the polybenzimidazole fiber):(the p-aramid fiber)) is 50:50 to 65:35 wherein the amount of the sheath component 22 is 100% by mass, the core component 21 is a copolymerized p-aramid fiber yarn, and the p-aramid fiber in the sheath component 22 is a homopolymerized p-aramid fiber. A heat-resistant cloth according to the present invention is produced using the spun yarn having a multilayer structure, and a heat-resistant protective clothing according to the present invention contains the heat-resistant cloth. It becomes possible to provide: a spun yarn having a multilayer structure, which has high strength, heat resistance and flame retardancy; and a heat-resistant cloth and a heat-resistant protective clothing, in each of which the spun yarn having a multilayer structure is used.
Inventors:
OKABE TAKAYUKI
TASAKI KEITA
TASAKI KEITA
Application Number:
PCT/JP2018/013686
Publication Date:
September 12, 2019
Filing Date:
March 30, 2018
Export Citation:
Assignee:
THE JAPAN WOOL TEXTILE CO LTD (JP)
International Classes:
D02G3/36; D02G3/04; D03D15/12
Domestic Patent References:
| WO2016147779A1 | 2016-09-22 |
Foreign References:
| JPH0363597U | 1991-06-20 | |||
| JPS646299B2 | 1989-02-02 |
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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