棉织物的活性染料催化增深染色工艺

Catalytic and deepening dyeing of cotton fabric with reactive dyes

以三乙烯二胺为催化剂,对棉织物进行活性染料催化增深染色,以期提高活性染料的固色率和表观深度。结果表明,与常规染色相比,经催化染色的活性染料,其上染率、固色率及K/S值得到进一步提高,且干湿摩擦牢度和皂洗牢度都达到要求。三乙烯二胺作为增深剂,于常规染色固色后排液前加入,可以提高染料利用率,起到较明显的增深作用。

Reactive dyeing of cotton fabric with triethylene diamine as a catalyst is carried out to improve the fixation yield and K/S value. The results show that the catalytic reactive dyeing has better dye-up- take, fixation yield and K/S value. Moreover, the wet and dry rubbing fastness and washing fastness can meet the requirement. The triethylene diamine as deepening agent is used in fixing process to offer stronger darkening effects and increase the utilization ratio of reactive dyes.