Salt-free dyeing of cotton fabric modified with cationic crosslinking agent having multi-reactive group

Multi-reactive quaternary agent containing epoxy group and chorotriazine was used to modify the cotton fabrics.The modified cotton fabric was dyed with reactive dye,and the influence of modifying time and concentration to dyeing behavior was researched.Compared with conventional reactive dyeing process,the dye uptakes and fixation yield of modified cotton dyed without salt were significantly improved,and also indicated better dyeing effect and color fastness to wet processing.