METHOD FOR DYEING ARAMID FIBER

摘要

<P>PROBLEM TO BE SOLVED: To provide a method for dyeing an aramid fiber which efficiently obtains a dyed material having high fastness and high concentration fixation. Ž<P>SOLUTION: The method for dyeing an aramid fiber includes dyeing an aramid fiber made of a meta-aramid fiber and/or a para-aramid fiber using a vat dye having affinity for an aramid fiber and being stable at 300°C or more under a temperature condition of 300-400°C. A product of the vat dye finely dispersed to be 1 μm or less in average particle diameter is more effectively used. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž