Cibt America Inc.

Cathay Biotech Inc.

Cathay (jinxiang) Biomaterial Co., Ltd.

Chaoxu Sun

Xiucai Liu

Xiaochen Xu

The present application discloses a polyamide 5X fiber, wherein raw materials for producing the polyamide 5X fiber comprise at least 1,5-pentane diamine and a long carbon chain diacid; or comprises a polyamide 5X obtained by the polymerization of 1,5-pentane diamine and a long carbon chain diacid as monomers. The 1,5-pentane diamine or the long carbon chain diacid are produced from bio-based raw materials by a fermentation process or an enzymatic conversion process; and the long carbon chain diacid is at least one of C6-20 aliphatic long carbon chain diacids. The long carbon chain diacid is at least one of C6-20 aliphatic long carbon chain diacids. The polyamide 5X fiber includes pre-oriented yarns, drawn textured yarns, fully drawn yarns, staple fibers, industrial yarns, continuous bulked filaments and monofilaments, preferably pre-oriented yarns, drawn textured yarns and/or fully drawn yarns. The raw materials used for producing the polyamide 5X resin are prepared by biological processes, and are green materials. The polyamide 5X fiber has good mechanical properties, dimensional stability, softness, quick-drying performance and dyeing properties.

Polyamide 5X fiber, preparation method thereof, and use thereof

The present disclosure provides a polyamide 5× staple fiber, a preparation method and use thereof. The polyamide 5× staple fiber has a denier of 8.0-30.0D, a breaking strength of 2.0-6.0 cN/dtex, and an elongation at break of 30-100%. The polyamide 5× staple fiber has good mechanical properties and softness, and a blended wool yarn for manufacturing carpets with good mechanical properties, dyeability, and wear resistance can be obtained by using the polyamide 5× staple fiber.

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Shanghai, China

Chaoxu Sun