中药天然染料狗脊对真丝绸染色性能的研究

Dyeing properties of Chinese herbal dye rhizoma cibotii on silk fabric

探究了中药狗脊染料对丝绸染色的条件及可行性,分析了提取温度、提取时间、料液比对提取效果的影响;染液p H、染色温度、染色时间、浴比对真丝绸染色效果的影响;比较了预媒染、同浴媒染、后媒染3种染色方式,测试了织物的耐皂洗色牢度及耐汗渍色牢度。结果表明,狗脊提取的优化工艺为:温度85℃,时间75 min,料液比1∶60;狗脊提取液直接染色真丝绸的优化工艺为:p H=4,温度60℃,时间50 min,浴比1∶60;媒染可提高染色真丝绸的上染率,中药狗脊染料染色真丝绸有较优的色牢度。

The feasibility and conditions of silk fabric dyeing with Chinese herbal dye rhizoma cibotii were studied. The influences of extraction temperature and time and ratio of solid to liquid on the extraction result were analyzed. And the factors influencing on dyeing result of silk fabric such as pH, dyeing temperature, dye- ing time and liquid ratio were discussed. Three different dyeing methods, pre-mordant, meta-mordant and post-mordant dyeing were compared. And the colorfastness to washing and perspiration of silk fabric was tested. The optimum extraction conditions were as follows： extracting at 85 ℃ for 75 min, 1：60 of solid to liquid ratio. The optimum technological conditions were as follows： pH=4, dyeing at 60 ℃ for 50 min, 1 ：60 of liquid ratio. Furthermore, the uptake could be effectively improved via mordant dyeing, and the colorfastness of dyed silk fabric with rhizoma cibotii dye was good.