MULTILAYER STRUCTURE SPUN YARN, MANUFACTURING METHOD THEREOF, HEAT-RESISTANT FABRIC, AND HEAT-RESISTANT PROTECTIVE CLOTHING

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-ara...

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Bibliographic Details
Main Authors TAKADA TAKUYA, TASAKI KEITA, YASUDA TOMONORI, OKABE TAKAYUKI
Format Patent
LanguageEnglish
Japanese
Published 16.08.2022
Subjects
ACCESSORIES
CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS
HUMAN NECESSITIES
LOOMS
MECHANICAL FINISHING OF YARNS OR ROPES
METHODS OF WEAVING
OUTERWEAR
PROTECTIVE GARMENTS
TEXTILES
WARPING OR BEAMING
WEARING APPAREL
WEAVING
WOVEN FABRICS
YARNS
YARNS OR THREADS
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Summary: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 【課題】摩擦強度、燃焼破裂強度及び洗濯摩擦変退色を向上させた多層構造紡績糸、その製造方法、耐熱性布帛及び耐熱性防護服を提供する。【解決手段】芯成分繊維２１がｐ－アラミド繊維牽切糸であり、鞘成分繊維２５がポリベンズイミダゾール繊維とアラミド繊維を含む多層構造紡績糸２０であり、鞘成分繊維２５のアラミド繊維はｐ－アラミド繊維とｍ－アラミド繊維を含み、鞘成分繊維２５を１００質量％としたとき、ポリベンズイミダゾール繊維は５０～６５質量％、ｐ－アラミド繊維は１８～３５質量％、ｍ－アラミド繊維は３～１８質量％の割合で混紡されている。一例として、多層構造紡績糸２０は、鞘成分繊維２５の一部の繊維が表層の巻き付き繊維２３となっており、残りの繊維は多層構造紡績糸２０の長さ方向に配列しており、表層の巻き付き繊維２３は一方向に撚りが掛けられた実撚り状であり、全体を束ねている。【選択図】図２
Bibliography:Application Number: JP20210015861