An explanation of bleach wash on denim cotton fabrics

Abstract

The process of giving denim special washed or vintage looks and color effects after stitching it into jeans or other garments. Different denim washing methods have been developed and used on various fabrics to produce a wide number of designs for fashionable denim garments and jeans over the last few decades. This study focused on the washing of denim fabrics with bleach and its effects on the denim fabrics. There were a total of three samples of three different structures of denim and bleached each sample in three different shades; light, medium, and dark. Among these samples, two samples were an indigo blue color, the composition of 98% cotton, 2% spandex, GSM–350 and 99% cotton, 1% spandex, GSM–330 respectively. KCI bleach for these two samples has found a good result. Another sample was black, 100% cotton, GSM–290. KCI bleach also applied on it but the result was not desired, bleaching results in a reddish effect over the fabrics, washed the remaining portion of the fabrics in caustic soda and got the desired result.