Dyeing process optimization of chitosan modified cotton dyed with Bixa orellana and Caesalpinia sappan

Indonesia is rich in flora diversity, very potential for the development of natural dyes. The advantage dyeing fabrics with dyes that they contain antioxidants and environmentally friendly. purpose this study was to optimize process on chitosan-modified variations temperature solution ratio. used were kesumba keling seeds (Bixa Orellana) sappan wood (Caesalpinia sappan). analysis carried out value color differences (DE), calculated determine changes intensity. dyed tested fastness light, heat, washing. best DE obtained at a variation 70 o C ratio fabric weight volume 1:75 both from each 6.22 11.84. Supported by test results sunlight iron heat which gives good results.