| abstract |
(57) [Summary] [Purpose] Insect-proof and tick-proof fibers used for interior applications such as carpets that require insect-proof and tick-proof effects, bedding applications such as blankets, and carpets that use this fiber. Providing a rug. A core-sheath type conjugate fiber having a sheath portion made of a polyamide having a fiber-forming ability and a core portion made of a crystalline polyamide having a melting point lower than the melting point of the polyamide by at least 30 ° C., the crystalline polyamide The rate of weight loss at 200 ° C is 0.5 at a heating rate of 10 ° C / min. A functional conjugate fiber in which 0.3 to 5% by weight as a fiber content is mixed and mixed with a fiber functionalizing agent such as an insect repellent of -80% by weight. |