聚酰亚胺纤维的染色性能

Dyeing properties of polyimide fiber

采用分散染料高温高压染色法染聚酰亚胺纤维,优化的染色工艺为:分散染料4%,染液pH值4～5,促染剂40 g/L,染色温度130℃染色时间60 min。在此工艺下,染料上染率达80%以上,耐光色牢度4级,耐皂洗色牢度3～4级。

Polyimide fiber is dyed with disperse dyes using high temperature and high pressure process. The optimized dyeing process is： disperse dyes 4%, pH value of dyeing liquor 4N5, accelerant 40 g/L, dyeing at 130℃ for 60 rain. Under this process, the dye uptake is more than 80%, the color fastness to light is Grade 4, and the color fastness to soaoina is Grade 3-4.