未干聚对苯二甲酰对苯二胺纤维的染色工艺

采用未干的聚对苯二甲酰对苯二胺（PPTA）纤维，分别用阳离子染料和分散染料对其进行染色，探讨纤维含水率、染色温度、染料种类和用量对纤维染色性能的影响。结果表明：相比于干燥的PPTA纤维，用未干的PPTA纤维进行染色，可明显提高纤维的上染率和K/S值；染色纤维具有较高的耐皂洗色牢度和耐摩擦色牢度；同时，染色后不会影响纤维原有的力学性能。

Dyeing process of undried poly(p-phenyleneterephthamide) fibers

Undried poly(p-phenylene terephthamide)（PPTA）fibers are used to be dyed with cationic dyes and disperse dyes. The effects of fiber moisture content, dyeing temperature, types and amount of dyes on the dyeing properties are studied. Compared with dried PPTA fibers, dyeing with undried fibers can obviously improve the dyeing rate and K/S value of PPTA fibers. Moreover, the color fastness of dyed fibers to soaping and rubbing are excellent, and dyeing will not affect the original mechanical properties of PPTA fibers.