Effect of Defuzzing methods on extent of preparation and dyeing of cotton fabrics

Summary

Three defuzzing methods, viz. singeing, neutral cellulose and acid – cellulose enzymes, have been applied to two woven cotton fabrics, to remove protruding fibres , prior to scouring and half – bleaching . The effects of theses methods on the fabric properties before and after scouring and half-bleaching as well as on subsequent dyeing with reactive , direct and neutral dyes have been investigated . The results detailed in this paper indicate that: a) the extent of loss in weight and strength , the drop in fabric thickness as well as the enhancement in pill rating of defuzzed-grey cotton fabrics as a function of defuzzing method follow the descending order : Acid-Cellulose> Neutral-Cellulose > singeing > None , regardless of the used substrate , b) subsequent half-bleaching of the defuzzed –scoured cotton fabrics brings about a significant improvement in the whiteness index values along with a further improvement in water absorbency properties , and c) the extent of dyeing of defuzzed –scoured and half-bleached cotton fabrics is governed by : The defuzzing method ( the color yield of the dyed fabric samples follows the aforementioned order ) , the class of dyestuff as well as the type of cotton substrate.

This paper was first published on the earlier Egytex website. The text above is the summary that was published there.