稀土作为媒染剂对茶多酚上染真丝绸的影响

Effect of rare earth as a mordant on silk dyeing with tea polyphenols

研究了稀土媒染剂对天然染料茶多酚上染真丝绸的影响,采用同浴法使稀土媒染剂与茶多酚(TP-95)发生络合,研究染色pH、温度和时间对丝绸多功能染整的影响,得到TP-95上染真丝纤维的最佳工艺为:浴比1∶50,TP-95用量5%(omf),染浴pH=6.0,媒染剂用量5 g/L,80℃染色70 min.同时,经过媒染后的真丝织物较未染色织物的抗紫外(UPF值)性能有明显的提高,织物K/S值、耐洗牢度、耐日晒牢度和耐干、湿摩擦牢度都有一定程度的提高,可满足人们对多功能、高品质真丝绸的需求.

Abstract： The effect of rare earth used as mordant for natural dye tea polyphenol （TP-95） on silk fabric was studied, and one bath dyeing process was adopted to complex rare earth mordant and tea polyphenol. The influences of dyeing pH, temperature and time on silk dyeing and multi-functional finishing were investi- gated. And the optimal dyeing process of silk dyed with TP-95 was found： bath ratio 1：50, TP-95 5%（omf）, pH=6.0, mordant concentration 5 g/L, dyed at 80 ℃ for 70 min. At the same time, the resistance to ultraviolet performance （UPF value） of dyed silk fabric with mordant was much higher than that of the undyed fabric. And the K/S value, fastness to washing, rubbing and light were improved to some extent, which could meet the de- mands of people on multi-function and high quality of silk.