Ecofriendly Antibacterial Dyeing of Wool Using Sichka Gall

With the growing awareness about cleaner surroundings, using natural materials in textile dyeing has been developed recently. In this way, in this research, one of the galls of the oak tree named Sichka was selected as a sample of cultural waste, and the optimal conditions of wool dyeing were investigated for the first time. The results show that sichka is a vast source of polyphenolic and tannins compounds and then can be considered an excellent candidate for wool dyeing and produced outstanding antibacterial properties. Results indicate that for the conditions used in our experiments, the optimum dyeing conditions are dye concentration of 45 % at the temperature of 80 ºC, time of 60 min, and pH of 4.5. The results also show that the wheat barn and citric acid were used as the bio- mordants to increase the affinity of wool yarns to the dye extract and improve dye fastness properties. It provides an excellent way to protect the ecosystem as much as possible and a space for new businesses with value-added.