ULTRAVIOLET LIGHT-SHIELDING POLYAMIDE FIBER

摘要

PROBLEM TO BE SOLVED: To obtain polyamide fibers having both properties of coloring. property and color fastness, and also excellent ultraviolet light-shielding property. SOLUTION: The objective polyamide fibers are composed of an ultraviolet light-shielding polyamide composition containing 1-20wt.% of anatase-type titanium oxide fine particles having 0.01-0.1μm average particle diameter and a compound containing a specific metal such as a copper compound in an amount of 1-300ppm reduced to a metal. The second objective conjugate fibers are composed of (A) an ultraviolet light-shielding layer comprising an ultraviolet light-shielding polyamide composition and (B) a transparent polyamide layer substantially not containing a light-scattering material such as titanium oxide.