| abstract |
This invention is a synthetic fiber which consists of aliphatic polyester resin (A) and thermoplastic polyamide resin (B), and the exposure area ratio of aliphatic polyester resin (A) with respect to fiber surface area is 5% or less, From the said synthetic fiber It provides a crimped yarn characterized in that a crimp is applied to the constructed multifilament, and at least a portion of the crimped yarn. Further, the crimped yarn in which the aliphatic polyester resin (A) and the thermoplastic polyamide resin (B) are made of a polymer alloy-based synthetic fiber, or the shim component is an aliphatic polyester resin (A) or an aliphatic polyester resin (A) and a thermoplastic A fiber comprising a crimped yarn composed of a polymer alloy with a polyamide resin (B) and composed of a sheath type composite fiber composed of a thermoplastic polyamide resin (B) with a super component, and the crimped yarn at least in part. Structure. n n Crimp, synthetic fiber, aliphatic polyester resin, thermoplastic polyamide resin, polymer alloy, composite fiber, fiber structure |