| 摘要 |
PROBLEM TO BE SOLVED: To obtain antimicrobial polyamide potentially crimpable yarn consisting of polyamide fiber with high whiteness, capable of imparting the fabrics therefrom with sufficient stretchability and softness, containing an antimicrobial agent, and causing no discoloration even if put to thermal and chemical treatments in a series of texturing processes, and to provide a method for producing such yarn. SOLUTION: This antimicrobial polyamide potentially crimpable yarn consists of side-by-side type conjugate fiber composed of two kinds of polyamide resins differing in viscosity from each other; wherein the higher-viscosity polymer is a nylon 6/66 copolymer 3.0-3.5 in relative viscosity, while the lower-viscosity polymer is a nylon 6 with a relative viscosity of 2.0-2.9. Further, this yarn contains 0.1-5.0 wt.%, based on the whole fiber, of zinc oxide microparticles with the surface coated with a coupling agent, having an initial Young's modulus of 15-25 g/d and percentage crimp of >=40%.
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