ABSTRACT

The natural sources from serial numbers 1-8 are used for the colouration purposes; and serial numbers 9 and 10 are used for other functional (anti-bacterial effect) application purposes used individually and also in combinations on the silk fabric with the colouring natural sources. The chemicals and auxiliaries mentioned elsewhere for this study were in AR grade

Pre-treatment on silk The silk materials were treated with 10 gpl hydrochloric acid for 60 minutes in a suitable separate baths with material to liquor ratio 1:30 at 30°C to get rid of the substrates added during weaving. After that the silk materials were degummed using sodium carbonate (2% owm) at 85°C for 2 hours. Finally the degummed materials were washed thoroughly and dried.