However, finishing the dyed fabric with formaldehyde-free crosslinking agent to render its colour fixation effect can improve the colour fastness.

• 针对这一问题采用固色处理来提高色牢度,利用固色剂能在织物表面形成薄膜,或与染料、纤维交联,从而起到固色效果,使牢度得到提高。