Study on dyeing properties of Xijing viscose fabric

Purpose This study aims to investigate the dyeing properties of Xijing viscose fabric and the effect of graphene-based background color on its dyeing results. Design/methodology/approach Reactive Red EC-3B, Reactive Yellow SE and Reactive Blue EC-GC were selected for the dyeing treatment of Xijing viscose fabric. The role of graphene in the dyeing process was clarified by comparing the color characteristic values, dye uptake rate, fixation rate and color fastness of white viscose fabric, Xijing viscose fabric and two types of simulated gray background fabrics. Findings The graphene-based background color affects different dyes’ dyeing results differently, with a slight impact on Reactive Blue EC-GC and a notable one on Reactive Yellow SE. Benefiting from graphene’s large specific surface area and p-p stacking effect, Xijing viscose fabric has improved dye adsorption. Its dye uptake rates for the three dyes are 92%, 89% and 95% and fixation rates 86%, 86% and 84% – ll higher than white viscose and simulated gray background fabrics. It also boasts excellent color fastness, with rubbing and soaping fastness at grade 4–5. Originality/value This study provides theoretical and experimental references for the optimization of the dyeing processes of Xijing textile materials.