活性黑KN-B的日晒牢度与染色工艺关系的研究

A Study on the Relationship Between Lightfastness of Reactive Black KN-B and Dyeing Processing

本文对活性黑KN-B(C.I.Reactive Black 5)染纯棉织物的染料浓度,固色率和染色后处理条件与日晒牢度的关系,以及三原色拼色时对日晒牢度的影响做了探讨,同时对涤/棉织物两浴法染色的活性黑KN-B与分散蓝HBGL对其日晒牢度的影响做了研究。结果表明:活性黑KN-B染纯棉织物,其日晒牢度随染料浓度和固色率的增加而提高,且固色率为70％以上时,日晒牢度大幅度提高。染色后处理,碱剂与皂煮对日晒牢度亦有一定的影响。使用活性黑KN-B,活性红M-3BE,活性黄M-3RE拼色对织物染色时,在KN-B的浓度为1％以下,其日晒牢度随浓度的增加而下降,在KN-B的浓度超过1％时其日晒牢度随浓度的增加而升高;日晒牢度随活性红M-3BE与活性黄M-3RE的浓度的增加而增大。采用分散/活性二浴法染涤/棉织物,其日晒牢度随KN-B浓度的增加,先降低后升高,在染料浓度大于1％时,日晒牢度几乎不在变化;但其日晒牢度随分散蓝HBGL的浓度的增加而增大。

The relationships between the lightfastness and dyeing processing of Reactive Black KN-B (C.I.Reactive Black 5) on cotton flbre( fabric) and Dispersol/Reactive dyes on T/C fabrics have been studied. It was shown that good lightfastness of Reactive Black KN-B and its matching shade components, the other two reactive dyes(Reactive Red M-3BE and Reactive Yellow M-3RE) all on cotton fabrics were assessed as the depths of shades building up and even better if the percentage of fixation was >70%. Noticeable effect on lightfastness of the dyeings after being soaped with sodium carbonate observed.