摘要
针对溴靛蓝溶解度低、染色温度高的缺点,采用相同有效力份的商品固体溴靛蓝和液体分散溴靛蓝,以染色过程中的保险粉和烧碱用量、还原温度和染色温度作为影响因子,进行中心合成试验法设计,通过测定染色织物的K/S值评价各因素的影响,并对体系进行优化。结果发现,要达到染色织物K/S值为24,两种染色体系的最优条件分别为:对于液体分散溴靛蓝,保险粉30 g/L,烧碱25 g/L,还原温度40℃,染色温度63.4℃;对于固体溴靛蓝,保险粉41.6 g/L,烧碱25 g/L,还原温度76.4℃染色温度80℃,染色织物的耐摩擦色牢度和拉伸强力基本一致。
Bromine indigo dyes have the disadvantages of low solubility and high dyeing temperature. The dyeing system is designed through the central composite experimental method with commercial solid bromide indigo and liquid dispersion bromide indigo respectively. The sodium hydrosulfite concentration, caustic soda concentration, reduction temperature and dyeing temperature are taken as the influencing factors. The dyeing system is optimized by evaluating the K/S values of dyed fabrics. It is concluded that to achieve 24 of K/S value, the optimal dyeing conditions for liquid dispersion bromide indigo is： sodium hydrosulfite 30 g/L, caustic soda 25 g/L, the reduction temperature 40 ℃, the dyeing temperature 63.4 ℃. The optimal dyeing condition for solid bromide indigo is sodium hydrosulfite 41.6 g/L, caustic soda 25 g/L, the reduction temperature 76.4 ℃, the dyeing temperature 80 ℃. The crocking fastness and tensile strength of the dyeings are almost the same.
出处
《印染》
北大核心
2017年第16期25-29,共5页
China Dyeing and Finishing
关键词
溴靛蓝染色
液体分散溴靛蓝
耐摩擦色牢度
拉伸强力
棉织物
indigo bromide dyeing
liquid dispersion bromide indigo
color fastness to crocking
tensile strength
cotton fabric
