ACE disperse blue dye was used to stain the fibre(PHBV/PLA 70/30).The orthogonal test was designed by using the three influencing factors of dyeing temperature,holding time and pH of dyeing solution,and the dyeing performance was evaluated by the above dyeing rate,color fixation rate and K/S value,and the best dyeing process was optimized,and the color fastness test of the dyed fiber was carried out under the op-timal process conditions.The results showed that the optimal dyeing process of PHBV/PLA fiber was as fol-lows:dyeing temperature 100℃,holding time 40 min,pH of dyeing solution 6.Under the optimized process,the dyeing rate of the fiber was 94.02%,the color fixation rate was 88.50%,and the K/S value was 15.06,and the color fastness to soaping and light were above level 4,the color fastness to dry friction was level 4,and the color fastness to wet friction was level 3-4,which had good color fastness performance.
万方数据
维普
