Improved Dyeing Properties of Chrome-Tanned Leathers and Parameters of the Waste Water Using Chitosan Formate

WOS: 000341557900009This study investigated the characteristics and dyeing fastness of chrome-tanned bovine leathers. Chitosan formate was applied to the leathers in four different proportions. The dye exhaustion and tensile strength of the leathers increased as the proportion of chitosan formate increased, and the highest levels of both dye exhaustion and tensile strength were obtained in an application at a proportion of 200% solution containing 2.5% chitosan on the basis of leather weight. In addition, chitosan formate was found to improve the pollution parameters of dyeing effluents such as chemical oxygen demand, total suspended solids, total dissolved solids, salinity, and electrical conductivity