超临界CO_2染色法在超细涤纶纤维染色中的应用  

Application of Supercritical Carbon Dioxide Method to Super-micro Polyester fiber

作　　者：周明强[1] 李青[1] 陈英[1] 

机构地区：[1]北京服装学院材料科学与工程学院,北京100029

出　　处：《北京服装学院学报（自然科学版）》2007年第4期25-30,共6页Journal of Beijing Institute of Fashion Technology：Natural Science Edition

基　　金：北京市人才强校计划-人才引进资助计划;北京市教育委员会科技发展计划项目(AJ2006-03);北京市服装材料研发与评价重点实验室开放课题资助项目(2005ZK-2)

摘　　要：超细涤纶纤维纤度小,比表面积大,水浴染色时往往出现得色量低、显色性差、色牢度差等问题.超临界二氧化碳既对分散染料有着较大的溶解度,又有易于扩散和运动的气体特性,有望解决超细涤纶纤维的染色问题.本文用超临界二氧化碳染色法对超细涤纶纤维的染色状况分别从时间、温度、压力3个方面进行了考察研究.结果表明:超临界二氧化碳染色法适于超细涤纶纤维的染色,较适宜的工艺条件是压力20 MPa、温度120℃、时间30 min,所得染色纤维其染料上染量、K/S值及色牢度均较水浴染色纤维为优,且达到了与普通涤纶染色纤维相近的效果.Super-micro polyester fiber has a minor size and large specific surface, when dyeing in water it behaves low dye yield, dispatch color rendering and low color fastness. The solubility of disperse dye to supercritical carbon dioxide is large, while the gas proliferation and movement in supercritical carbon dioxide are better. It is possible that dyeing problem of super-micro polyester could be resolved by supercritical carbon dioxide method. In this paper, dyeing behaviors of supercritical carbon dioxide on super-micro polyester fiber was studied in dyeing time, temperature and pressure. Results showed that the suitable process conditions of dyeing in supercritical carbon dioxide were as the following： the pressure was 120 ℃, the temperature was 120 ℃and the dyeing time was 30 min. The dye-uptake, K/S value and color fastness were better than that of fabric dyed in water, while as well as that of ordinary polyester fiber.

关 键 词：超临界二氧化碳 超细涤纶 染色 K/S值 上染量 

分 类 号：TS193.65[轻工技术与工程—纺织化学与染整工程]