Title:
MULTILAYER STRUCTURE SPUN YARN, MANUFACTURING METHOD THEREOF, HEAT-RESISTANT FABRIC, AND HEAT-RESISTANT PROTECTIVE CLOTHING
Document Type and Number:
Japanese Patent JP2022118975
Kind Code:
A
Abstract:
To provide a multilayer structure spun yarn with improved frictional strength, combustion burst strength and discoloration resistance to washing and friction, a manufacturing method thereof, a heat-resistant fabric and a heat-resistant protective clothing.SOLUTION: A core component fiber 21 is p-aramid fiber stretch-broken yarn and a sheath component fiber 25 contains polybenzimidazole fiber and aramid fiber in a multilayer structure spun yarn 20. The aramid fiber of the sheath component fiber 25 contains p-aramid fiber and m-aramid fiber. When the sheath component fiber 25 is 100% by mass, the polybenzimidazole fiber of 50 to 65% by mass, the p-aramid fiber of 18 to 35% by mass, and the m-aramid fiber of 3 to 18% by mass are blended. For example, fibers of a portion of the sheath component fiber 25 are twining fibers 23 of a surface layer, while remaining fibers are arranged in lengthwise direction of the multilayer structure spun yarn 20, and the twining fiber 23 of the surface layer is in a real twisted state in which twisting is provided in one direction and bundles entire fibers in the multilayer structure spun yarn 20.SELECTED DRAWING: Figure 2
Inventors:
OKABE TAKAYUKI
TAKADA TAKUYA
TASAKI KEITA
YASUDA TOMONORI
TAKADA TAKUYA
TASAKI KEITA
YASUDA TOMONORI
Application Number:
JP2021015861A
Publication Date:
August 16, 2022
Filing Date:
February 03, 2021
Export Citation:
Assignee:
NIPPON KEORI KK
International Classes:
D02G3/36; A41D13/00; A41D31/08; D02G3/04; D02G3/28; D03D15/40; D03D15/47
Domestic Patent References:
| JP2007506006A | 2007-03-15 | |||
| JP2012219405A | 2012-11-12 | |||
| JP2016176149A | 2016-10-06 | |||
| JP2019157279A | 2019-09-19 |
Foreign References:
| CN110725032A | 2020-01-24 |
Attorney, Agent or Firm:
Patent business corporation Ikeuchi and Partners