摘要
选择葡萄糖作为生态还原剂,研究植物靛蓝染料的还原工艺及对纯棉织物的染色工艺;探讨了改性处理对棉织物靛蓝染色的增深效果,并测试了染色织物的色牢度。试验结果表明,葡萄糖对植物靛蓝的还原工艺为:靛蓝染料10%(omf),葡萄糖用量30 g/L,烧碱用量10 g/L,尿素2 g/L,还原温度55℃,还原时间10 min;植物靛蓝无盐染色的改性前处理工艺为:改性剂用量4 g/L,烧碱用量6 g/L,改性时间30 min,改性温度60℃;植物靛蓝无盐染色工艺为:染色温度20℃,染色时间100 min,染色浴比1∶20。测试数据显示,无盐改性染色织物的ΔE值与同浓度染料加盐染色相当,干、湿摩擦牢度分别为4～5级和3～4级,耐皂洗沾色牢度为4～5级,耐皂洗褪色牢度3～4级。
The reduction process of natural indigo and its application to salt-free dyeing of cotton fabric are carried out with glu- cose as an ecological reductant. The effect of modification on cotton deep dyeing result is discussed, and the color fastness is tested. The reduction process of natural indigo with glucose is as follow： indigo 10%（omf）, glucose 30 g/L, caustic soda 10 g/L, urea 2 g/L, and reduction at 55 ℃ for 10 rain. The modification process is： modification agent 4 g/L, caustic soda 6 g/L, and modification at 60 ℃ for 30 min. The salt-free indigo dyeing process of cotton is： dyeing at 20 ℃ for 100 min with bath ratio 1：20. The salt-free dyeings feature the same AE value as those with salt, good dry/wet rubbing fastness of 4 - 5/ 3 -4 grade, soaping fastness to staining/fading of 4 - 5/3 -4 grade respectively.
出处
《印染》
北大核心
2013年第5期1-4,共4页
China Dyeing and Finishing
关键词
植物染料
染色
靛蓝
棉织物
葡萄糖
阳离子改性
vegetable dye
dyeing
indigo dyes
cotton fabric
glucose
cationic modification
