高岭土改性聚酯纤维的染色性能

Dyeing property of kaolin-modified polyester fibers

为提高聚酯纤维的染色性能,用高岭土对聚酯纤维进行改性,并探讨改性后聚酯纤维的一些基本染色特性,包括染色温度对上染百分率的影响、不同应用性能染料的升温上染特性和不同结构的分散染料在改性聚酯纤维上的提升性能。实验结果表明：高岭土改性聚酯纤维在较低温度下具有良好的可染性,可在100～110℃染色,高岭土改性聚酯纤维的染色转变温度比普通聚酯纤维低,应选择较低的始染温度;杂环结构的分散染料在高岭土改性聚酯纤维上的提升性并不好,这与普通聚酯纤维的提升性规律有所不同。

In order to improve the dyeing property of polyester fibers,kaolin has been used for their modification and some dyeing properties of kaolin-modified polyester fibers were discussed,including the influence of dyeing temperature on the exhaustion,uptake rate of various dyes when rising temperature and built-up property of disperse dyes with different structures.The results indicate that kaolin-improved polyester fibers show good dyeability at low temperature as at 100～110℃,and its dyeing transition temperature is lower than that of ordinary polyester fibers,so at the beginning the dyeing temperature should be mild.The built-up property of disperse dyes with heterocyclic structures are not good on kaolin-improved polyester fibers,which is different from the ordinary polyester fibers.