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Study on the Extraction of Ginkgo and Dyeing Tussah

In this study the natural dye was extracted from Ginkgo leaves with the ethanol solution and then the obtained dye was applied to dye tussah silk strips with direct staining methods. The best dye conditions of the tussah silk strips could be obtained when the bath ratio was 1:50, the concentration of ginkgo pigment was 10%, the temperature of dyeing was 70°C and the time of dyeing was 60 minutes. The different colors could be obtained under different experimental conditions. The color of sample which was dyed with pigment which reacted with NaOH solution was bright and yellowish green and the color of sample which was directly dyed with pigment was orange.