艾叶提取液对真丝的直接染色

Direct dyeing of silk with the extracts from Artemisia argyi

从艾叶中提取天然色素并用于蚕丝直接染色。采用单因素试验,讨论了氢氧化钠用量、提取温度、提取时间等因素对提取效果的影响,以及染色温度、时间、pH值等因素对蚕丝染色效果的影响,优化了艾叶色素提取和蚕丝的染色工艺。优化的艾叶色素提取工艺:氢氧化钠10 g/L,提取温度90℃,提取时间60 min,料液比20∶1。艾叶提取液对真丝直接染色优化工艺:艾叶提取液50 g/L,染色温度90℃,染色时间60 min,染色pH值4.5。结果表明,染色蚕丝牢度尚可,且染品具有抗紫外、抗菌及芳香性。

A natural colorant extracted from Artemisia argyi is applied to silk dyeing.Influences of NaOH dosage,extraction temperature and time on extraction effect,and pH value,dyeing temperature and time on dyeing result are discussed by single factor analysis.The optimum extraction and dyeing process are extraction at 90 ℃ for 60 min with NaOH 10 g/L and material to liquid ratio 20 ∶ 1,and direct dyeing at 90 ℃ for 60 min with Artemisia argyi extracts 50 g/L and pH value 4.5.The silk dyeings have general color fastness and good anti-UV and anti-bacterial property and aromaticity.