超临界二氧化碳无水工程化染色中羊毛纤维的力学性能  

Mechanical properties of wool fibers in engineering anhydrous dyeing using supercritical carbon dioxide

作　　者：张娟[1] 郑来久[1] 闫俊[1] 熊小庆[1] 高世会[1] 

机构地区：[1]大连工业大学辽宁省清洁化纺织重点实验室,辽宁大连116034

出　　处：《纺织学报》2017年第2期53-59,共7页Journal of Textile Research

基　　金：国家青年科学基金项目(21606032);辽宁省教育厅攻关项目(2016J003)

摘　　要：针对羊毛纤维超临界二氧化碳(CO2)无水工程化染色过程中存在纤维强力损伤的问题,利用活性分散大红G进行了羊毛纤维超临界CO2无水染色,系统研究了不同染色温度、压强、时间对羊毛纤维的力学性能演变行为的影响,并对染色前后的纤维表观形貌进行了测试分析。结果表明:超临界CO2无水染色过程中,羊毛纤维的染色K/S值随染色温度、压强和时间的增加而增大;纤维短绒率随着染色温度和时间的增加而不断提高;纤维断裂强力和断裂伸长率则随着染色温度、压强、时间的增加而降低;染色后羊毛纤维的摩擦色牢度和耐皂洗色牢度均达到4级以上。The effect of high temperature and pressure supercritical state on mechanical properties of wool fiber was detected in the engineering dyeing processing using supercritical carbon dioxide. In the paper, wool fibers were dyed in supercritical carbon dioxide with Reactive Disperse Red G. Effects of different dyeing temperature, pressure, as well as time on the evolution behavior of mechanical properties were studied. The results showed that the K/S values and the short fiber content of wool were increased with the increase of dyeing temperature and time while the breaking strength and the elongation at break were decreased with the increase of dyeing temperature, pressure, as well as time. Moreover, the color fastness to rubbing and soaping reached 4 grade or more after dyeing, and the surface morphology of the wool fibers before and after dyeing were also measured as well.

关 键 词：羊毛 染色 超临界CO2 工程化生产 力学性能 

分 类 号：TS193[轻工技术与工程—纺织化学与染整工程]