杉树叶色素的提取及其在桑蚕丝和棉织物上的应用

Extraction of natural dyestuff fir leaves and its application in dyeing silk and cotton fabrics

为了探究杉树叶色素对桑蚕丝、棉织物的染色性能和抗紫外线效果,研究了杉树叶色素提取液对桑蚕丝织物和棉织物的最佳染色工艺,并测试了染色桑蚕丝织物、棉织物的抗紫外线性能,同时对染色织物的耐皂洗色牢度和耐日晒色牢度进行了评价。结果表明:杉树叶色素提取液对桑蚕丝织物、棉织物的最佳染色方法是后媒染色法,棉织物最佳染色工艺为:浴比1∶50,90℃下染色60 min,染色pH值4.5,元明粉质量浓度15 g/L。桑蚕丝织物最佳染色工艺为:浴比1∶50,100℃下染色60 min,染色pH值4.5,元明粉质量浓度20 g/L。媒染工艺为:媒染剂稀土质量浓度1 g/L,80℃下处理30 min。经过固色后,染色织物的耐皂洗色牢度与耐日晒色牢度均能达到3级,且抗紫外线性能较佳。

In order to explore the dyeing property and anti-ultraviolet effect of natural dyes on silk and cotton fabrics of Chinese fir leaves.In this experiment,the best dyeing process of Chinese fir leaf extract on silk fabric and cotton fabric was studied,and the ultraviolet resistance of silk fabric and cotton fabric was tested.The results show that the best dyeing method for silk and cotton fabric is post、|mordant dyeing,,and the best dyeing process for cotton fabric is as follows:the bath ratio is 1∶50,dyeing at 90℃for 60 min,dyeing pH value 4.5,and the dosage of sodium sulfate is 15 g/L.The best dyeing process for silk fabric is:bath ratio 1∶50,dyeing 60 min at 100℃,dyeing pH value 4.5,dosage of sodium sulfate 20 g/L.Mordant dyeing process is as follows:mass concentration of mordant is 1 g/L(rare earth),and it is treated at 80℃for 30 min.After color fixation,the color fastness to soaping and to sun can reach grade 3,and the uv resistance is better.