Effect of ozonation process on dyeing of polyamide fabrics with a natural dye: walnut rind

Abstract

In recent years, concern for the environment has created an increasing interest in natural dyes. Besides natural fibers synthetic fibers can also be dyed with natural dyes. In our previous study, we have examined the dyeability of polyamide fabrics with white onion skin. The aim of this study was to determine the effects of ozonation process on dyeability of polyamide fabrics with walnut rind as a natural dye. For this purpose optimization of ozonation pretreatment was performed. According to the experimental results, it was determined that ozonation pretreatment improved the dyeability of polyamide fabrics with walnut rind and very good fastness values were obtained.