Role of Mercerizing Condition on Physical and Dyeing Properties of Cotton Knit Fabric Dyed with Reactive Dyes

Abstract

This work aims on the assessment of mercerizing efficiency as well as the effect of mercerizing condition on physical properties of cotton knit fabric and subsequently the dyeing properties of mercerized textiles. Cotton knit fabrics were mercerized by varying the concentration of caustic soda and the mercerized fabrics were dyed with 3% Reactive dyes by varying dyeing temperature. Mercerizing efficiency was assessed by BAN and physical properties were assessed in terms of moisture regain, tensile strength and brightness of cotton goods. It was found that all the parameters increased with the increase of concentration of NaOH. In terms of color strength and colorfastness properties, it was observed that, with the increment of dyeing time the shade became more prominent with better fastness rating.