This paper explores the use of Chitosan as sustainable agent to improve dyeing properties of cotton fabric dyed with Opuntia ficus-indica L fruit peel and the determination of the amount of anthocyanin pigments by the spectrophotometric method. The results of this study highlights that cotton fabrics treated with chitosan have better depth of shade (K/S = 12) than those untreated fabrics (K/S = 3.7) dyed with Opuntia ficus-indica L fruit peel. We have thoroughly investigated the effects of dye bath pH and temperature on the color properties of the aforementioned fabrics. UV protection of cotton fabrics increased after natural dyeing, and it was further improved after being treated with chitosan. Experimental results show that the fastness properties of dyed cotton fabrics treated with chitosan were improved from average to excellent.
Rym Mansour is an Assistant Professor in Textile Materials & Engineering. She obtained her diplomat of engineering. in Textile Engineering from Tunisian Engineering college of Monastir. She then worked at High institute of technology of Kairouan as a Textile Engineer, before pursuing a PhD in developing sustainable textile finishing processes using Natural dyes extracted from grape pomace and leaves at the faculty of sciences of Monastir. Following the PhD completion, she became a Research Assistant working on the use of chitosan extracted from crabs to enhance the dyeability of cotton fabtics with natural dyes and exploring their UV-protection. Since joining the high institute of arts and crafts of Kairouan in 2017, she has taught sciences of materials, besides she has come a contact point at European Horizon and at Erasmus+.
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