涤纶超细纤维染色时存在匀染性、染深性和牢度三个问题，助剂是解决这些问题的一个重要手段。
Dyeing auxiliaries are the key points to resolve the problems of levelness, deep dyeing and fastness in dyeing micro polyester fiber.
本文着重论述了涤纶超细纤维的染色特性。
The dyeing behaviours are discussed about polyester microfibre.
非离子表面活性剂在降低了分散染料对涤纶超细纤维的亲合力的同时，也降低了分散染料在染色过程中的染色热和染色熵的绝对值；
The addition of nonion surfactants into dyebath decreases both the affinity of disperse dyes to polyester microfiber , and the absolute values of entropy and heat of dyeing;
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