OPTIMIZATION OF PARAMETERS OF COTTON FABRIC WHITENESS

In this project work, the performance of peroxide bleaching commercial bluing agent, and different fluorescent brightening on the degree of whiteness of cotton fabric was investigated and compared. Here all the experiments were done on cotton fabric; both for woven knit structures in exhausted method. Maximum whiteness is found by applying optical brightening agent of Synowhite 4KB brand of 1.2 % on the weight of materials at 80oC for 40 minutes treatment of cotton fabric along with salt of 5gm/L after bleaching. Furthermore, the influence of surface characteristics of the substrate on whiteness index was observed. CIE whiteness Index was measured by spectrophotometer at the standard illuminant D65