阳离子改性棉织物的无盐低碱染色工艺研究  

Study on salt free and low alkali dyeing process of cationic modified cotton fabric

作　　者：王华君[1] 董婷婷[1] 李美真[1] 

机构地区：[1]内蒙古工业大学,内蒙古呼和浩特010051

出　　处：《染整技术》2015年第3期9-11,16,共4页Textile Dyeing and Finishing Journal

摘　　要：活性染料染棉通常需要加入大量的盐和碱用于促染和固色,但这样使染色废水变为含盐污水,盐的浓度高,污水处理负担加重,且生产费用增加。采用阳离子改性剂CA及CM-E进行改性预处理,优化出最高上染率时的盐和碱用量,得出最佳的改性剂为阳离子改性剂CA,质量浓度为20g/L。在此种改性剂及用量基础上逐渐减少盐和碱用量,发现上染率降低并不多,还会随着盐用量减少有所增加,综合考虑,确定盐用量为0g/L,碱用量为15g/L,此时的上染率为78.4%,同时,活性染料在改性后的棉织物上耐洗色牢度达到4级,耐摩擦色牢度达到3级。从而实现了真正意义上的无盐低碱染色。Large amounts of salt and alkali are required for the dyeing and fixation during the dyeing process of cotton fabric with reactive dye, which results in concentrated salt water. The salt water burdens the treatment of waste water and increases the costs of production. The cotton fabric is pre-treated with cationic modification agent CA and CM-E and dyed with different usage of salt and alkali. The optimal process is cationic modifying agent CA 20 g/L, salt 0 g/L and alkali 15 g/L with a uptake of 78.4%. The uptake decrease not too much but increase with the decrease usage of salt. The washing fastness of modified cotton fabric ranges 4 grade and the rubbing fastness is 3 grade.

关 键 词：阳离子改性剂 无盐低碱 上染百分率 

分 类 号：TS193.632[轻工技术与工程—纺织化学与染整工程]