Synergistic Effect of Wool Hydrolysates in Textiles Natural Dyeing

The use of natural dyes in textile manufacturers is growing to implement eco-friendly processes. Natural dyes, however, require additives to be absorbed by the textile substrate. Metals-based mordants are typically used in spite of environmental pollution. In this work, waste wool hydrolysates were employed to test the possibility of dyeing cotton and wool fabrics. The process conditions to treat the fabrics with the wool hydrolysates were studied to set up the mordanting phase and prepare the fabrics for the dyeing process. Preliminary results show that the wool hydrolysates improve the dyeing of wool and enable that of cotton.