还原染料蚕丝织物拔染印花

Discharge printing of the real silk fabric with vat dyes

以浆状还原染料作为花色染料,用乙烯砜型活性染料为地色染料,应用于蚕丝织物拔染印花工艺;分析了还原染料、还原剂和碱剂用量对印染效果的影响,并测试了印染试样的色牢度与强力,以探究其应用的可能性。结果表明,浆状还原染料应用于蚕丝织物拔染印花中可以获得鲜艳的色泽,色牢度优良,但织物强力有损伤。

Discharge printing of the real silk fabric was performed with vat dye paste for printing the patterns and vinyl-sulfone reactive dye for the ground. The effect of vat dyes, reducing agents and alkali dosage on printing was analyzed. The color fastness and the strength of the printed silk fabric were tested with the purpose of investigating the possibility of this application. The result indicates that the application of vat dye paste to the discharge printing of real silk fabrics can obtain brilliant shade and good color fastness, but lower the strength of the fabrics.