Dyeing Properties and Color Fastness of Cotton Fabrics Dyed with Uncaria Gambir Extract by the Padding Techniques

Abstract

The pad dyeing offers the most economical and convenient method of dyeing cotton fabric. The energy and water consumptions are at the lowest, thus rendering it more eco friendly. The dyeing of cotton fabric was carried out with dye extraction from the uncaria gambir by using two padding techniques, namely the pad-batch and pad-cure techniques under different conditions. The effect of dyeing method and mordant on color strength and colorimetric parameters (L*, a*, b*, and ΔE) were evaluated. The color fastness to wash, light and perspiration after dyeing the cotton fabric treated with the mordant was determined according to AATCC test method. The study showed that the color strength (K/S) of the dyed cotton fabric using pad-cure method higher than those dyed cotton fabric using pad-batch method. Meta-mordanting showed increase dye uptake and color fastness of cotton fabrics.