摘要
采用热水浸提法从低档绿茶中提取茶黄素,研究了提取温度、时间、料液比、浸提次数对提取量的影响.研究表明:茶黄素的最佳提取工艺为:95℃,料液比1∶40,提取35 min,浸提次数对色素提取量影响较小.将所获得的茶黄素用于涤纶超临界CO2染色,探究了染色温度、压力、时间对染色性能的影响,结果表明:最佳染色工艺为:压力20 MPa,时间70 min,温度120℃.茶黄素染色后涤纶织物各项色牢度均达到了4级以上.
Theaflavin was extracted by hot water extraction method. The influences of extraction temperature, time, ratio and leaching time on the extracting dosage were studied. The optimal extraction process was obtained： 95 ℃, 35 min, 1：40 of liquid ratio. The extraction time had little effect on the extracting dosage. The extracted theaflavin was used on polyester supercritical CO2 dyeing. The influences of dyeing temperature, pres- sure and time on the dyeing properties were discussed. The results showed the optimum dyeing conditions were： 20 MPa of pressure, 70 min, 120 ℃. The color fastness of theaflavin dyed fabric reached above level 4.
出处
《印染助剂》
CAS
北大核心
2013年第1期36-38,共3页
Textile Auxiliaries
关键词
茶黄素
涤纶
超临界CO2染色
染色性能
theaflavin
polyester
supercritical CO2 dyeing
dyeing properties
