POLYURETHANE UREA ELASTIC FIBER HAVING EXCELLENT LIGHT RESISTANCE AND DYEING PROPERTY AND MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A manufacturing method of polyurethane urea elastic fiber which is capable of increasing operating capacity of a spinning process and improving light resistance and dyeability is provided. CONSTITUTION: The polyurethane urea elastic fiber is obtained by a process containing the steps of: preparing a polyurethane urea polymer solution; adding 0.05-2.5wt.% of triazine type oligomer compound(formula I) containing tertiary amine to the polymer solution; and then spinning. In the formula I, R1 is H, C1-C15 alkyl or C1-C15 linear, branch or ring alkyl containing N or O; R2 is C3-C10 alkyl; R3-R12 are H or C1-C4 alkyl; and n is an integer.