METHOD FOR DYEING P-ARAMID FIBER, AND TEXTILE FIBER STRUCTURAL PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide a method for dyeing p-aramid fibers in high clearness and high color fastness to light, and to provide a fabric containing the thus dyed p-aramid fibers. SOLUTION: The method for dyeing p-aramid fibers includes the following steps: Para-aramid fibers imparted with kinkbands are dyed in a pH2-5.5 aqueous solution using a cationic dye in the presence of an alkali metal salt and/or an alkaline earth metal salt and a carrier having the effect of fiber structure relaxation or dropping of apparent glass transition point. COPYRIGHT: (C)2010,JPO&INPIT