阳离子明胶蛋白助剂改性CVC织物的无盐染色效果评价

用自制阳离子明胶蛋白助剂改性CVC织物,探讨改性CVC织物对不同种类活性染料无盐染色的上染率、固色率和染色牢度的影响.结果表明,改性CVC织物染色性能改善显著,能获得比未改性CVC织物加盐染色时更高的上染百分率、K/S值及固色效率,耐洗色牢度增强,但耐摩擦色牢度略有下降;能实现活性染料无盐染色,提高染料利用率,大幅节约染料用量,减少染色废水的排放量和废水污染.

Evaluation of salt-free dyeing of cationic gelatin protein agent modified CVC fabrics

CVC fabric was modified by a self-made cationic gelatin protein agent. And the dyeing rate, fixation rate and fastness of the modified CVC fabric were discussed when dyeing with different kinds of reactive dyestuffs in a sah-free process. The results show that dyeing behaviour of the modified CVC fabric was improved significantly. Compared with the unmodified CVC fabric dyeing with salt, the saltfree dyeing modified CVC fabric can provide itself a higher dyestuff up-take,K/S value and fixation rate. And fastness to washing was improved while the rubbing fastness was a little bit decreased. Therefore the salt free process can be achieved when dyeing with reactive dyestuffs and the dyestuff utilization ratio was highly raised. What＇more the emission of dyeing waste water was reduced and the relative pollution problems can be cut down.