A STUDY ON EFFECTIVENESS OF OZONE TREATMENT AS A GREEN METHOD FOR DEGUMMING AND BLEACHING SILK

Abstract

This study investigated the effect of ozone treatment on 100% raw mulberry silk and its influence on fabric physical properties, the results were compared with traditional degumming method by soap and bleaching by hydrogen peroxide (H₂O₂) for reference. It was observed that sericin in raw silk was removed and the fibroin was not affected after treatment. The treatment result increase in elongation, decrease in breaking strength and weight under dry treatment condition, wet pick up 50% of hydrochloric acid (HCl) pH4 in 10, 20, and 30 minutes, these properties values decrease with treatment time increase. The hand-painted scarf using treated fabric provide good color fastness that can be used in fashion apparel. Besides, soap used in ozone treatment is 40% of that in the traditional method in less time treatment.