液体还原染料对大麻和大麻/天丝针织物的染色

Liquid vat dyes for hemp and hemp/tencel knitted fabric dyeing

采用还原蓝RSN、棕BR、橄榄T 3种液体还原染料对大麻和大麻/天丝混纺织物进行隐色体染色，探讨了染色温度、时间以及尿素、JFC和染料用量等对染色织物K/S值的影响，测试了染色织物的色牢度。结果表明，液体还原染料对大麻和大麻/天丝混纺织物的最佳染色工艺：染料4%（omf），尿素30 g/L，JFC 1 g/L，染色温度50~60℃，染色时间60 min。各项染色牢度均能达到3~4级以上，满足服用要求。

The three liquid vat dyes such as Vat Blue RSN, Brown BR and Olive T were used for Hemp and hemp/Tencel blended fabric leuco dyeing. This paper discussed the effects of dyeing temperature, time, and the amount of urea, JFC and dye on dyed fabric K/S and the color fastness of dyed fabric was measured. The results showed that the optimum dyeing process of liquid vat dyes for hemp and hemp/Tencel blended fabric were as following：dye 4%（omf）, urea 30 g/L, JFC 1 g/L, the dyeing temperature 50~60℃and dyeing time 60 min were. Each of color fastness was able to 3~4 scale or more and met the wearability standard.