ELASTIC FIBER EXCELLENT IN ANTISTATIC PROPERTY

摘要

PROBLEM TO BE SOLVED: To solve problems that antistatic properties are not improved as expected because the compatibility of a modified silicone with a polymer is bad and the modified silicone is not uniformly dispersed in the polymer when the terminal blocked type polyether-modified silicone is added to an elastic fiber and the antistatic properties are not improved as expected because the modified silicone is not fixed on the elastic fiber surface when the terminal blocked type polyether-modified silicone is used as a finish oil. SOLUTION: This polyurethane comprises at least 0.001-10 wt.% of at least either one of (1) the modified silicone having 1-4 polyoxyalkylene groups in which the terminal of the polyoxyalkylene groups is OH group or NH2 group and (2) the modified silicone having 1-4 reactive OH groups or reactive NH2 groups and the terminal modified even with a terminal blocked polyoxyalkylene group. The elastic fiber comprises 1-10 wt.% of a finish oil comprising the modified silicone and applied thereto.