蚕丝织物的野菊花色素染色

Dyeing process of silk fabrics by Flos Chrysanthemum indici pigment

野菊花色素作为一种天然植物提取物,含有丰富的类黄酮成分,具有鲜明的颜色和优良的抗氧化性能,在医药、食品等领域得到广泛使用。试验选取野菊花类黄酮色素,利用直接染色法和后媒染法对蚕丝织物进行染色,探究了其最佳染色工艺。结果表明:野菊花色素后媒染蚕丝织物的最佳工艺为:染液pH=4,染色时间40 min,染色温度90℃,媒染剂质量浓度2.5g/L。野菊花色素染色的蚕丝织物耐摩擦色牢度可达4.5级以上,耐皂洗色牢度达3.5级,但耐日晒色牢度仅为2~3级。

Flos Chrysanthemum indici pigment,as a natural plant extract,is rich in the flavonoid components and possesses the distinctive colors and antioxidant properties,which has been widely used in the fields of medicine and food.Flos Chrysanthemum indici pigment is selected to dye silk fabrics using direct dyeing and post-mordanting processes and the optimum conditions are explored.The results show that the optimum pH,time,temperature and concentration of mordant for silk fabrics dyeing with Flos Chrysanthemum indici pig⁃ment are 4,40 min,90℃,and 2.5 g/L respectively.The color fastness to dry and wet rubbing of Flos Chrysan⁃themum indici pigment-dyed silk fabrics is up to Grade 4.5.The soap washing color fastness is good with Grade 3.5,while the sunlight color fastness is a little poor of Grade 2-3.