天然媒染剂在五倍子色素对毛织物染色中的应用

为了研究天然媒染剂对五倍子色素对毛织物染色性能的影响,采用煎煮法萃取五倍子植物色素,以铁硅质重碳酸盐碳酸冷矿水为天然媒染剂,进行了相关影响因素的单因素实验,分析并总结了影响因素对颜色特征值的变化规律。结果表明:染色工艺、天然媒染剂质量分数、染液pH值、染色次数均对颜色特征值有一定影响,其中影响大小为:染色工艺>天然媒染剂质量分数>染色次数>染液pH值。五倍子色素使用天然媒染剂对毛织物进行同媒染的最佳工艺为:浴比1∶30,染色时间30 min,媒染时间15 min,染色温度80℃,染液质量分数100%(加热前pH值为6),天然媒染剂质量分数100%。通过增加染色次数可以增加毛织物的颜色深度,最佳染色次数为5次。

Application of natural mordant in dyeing of gallnut wool fabric

In order to study the influence of natural mordant on dyeing performance of gallnut wool fabric, plant dyestuffs of gallnut was extracted by decoction method, and cold mineral water of ferrosiliceous bicarbonate hydrochloric acid was used as natural mordant. The single factor experiments of related influencing factors were carried out, and the changing rules of influencing factors on color characteristic were analyzed and summarized. The results showed that the dyeing process, the mass fraction of natural mordant, the pH value of dye solution and the number of dyeing times had certain effects on the color characteristic value, among which the dyeing process > the mass fraction of natural mordant > the number of times of dyeing > the pH value of dye solution. The optimum process of gallnut wool fabric co-mordant dyeing with natural mordant is as follows: bath ratio 1∶30, dyeing time 30 min, mordant dyeing time 15 min, dyeing temperature 80 ℃, dyeing liquid mass fraction 100%(pH value 6 during pre-heating), natural mordant mass fraction 100%. By increasing the number of dyeing, the color depth can be increased, and the optimal number of dyeing is 5 times.