ANTIMICROBIAL POLYAMIDE FIBER

摘要

PROBLEM TO BE SOLVED: To provide an antimicrobial polyamide fiber which does not cause the breakage of the fiber when spun and the characteristic discoloration of the polyamide resin, exhibits an excellent durable antimicrobial effect even under severe using conditions comprising repeated washing treatments and even under severe environments exposed on sunlight and high temperature atmospheres, and is not colored also when brought into contact with various fiber-treating agents in a process for producing the fiber. SOLUTION: This antimicrobial polyamide fiber having an enhanced antimicrobial activity and its enhanced durability is obtained by adding 0.1 to 2.0 pts.wt. of a surface-treated antimicrobial agent to 100 pts.wt. of the polyamide resin. The surface-treated antimicrobial agent is obtained by surface- treating 100 pts.wt. of an antimicrobial inorganic compound containing silver ion and having the maximum particle diameter of <=10μm with 0.05 to 1.5 pts.wt. of aγ-amino group-containing silane coupling agent by a drying method.