Abstract

This paper shows the effect of different bleaching agent on whiteness index and bursting strength of the cotton knitted fabric Bleaching process uses three types of bleaching agents namely hydrogen peroxide H2O2 sodium hypochlorite NaOCl and calcium hypochlorite Ca OCl 2 with varying their concentration and these are 1 5 g l 2 5 g l 3 5 g l 4 5 g l and 5 5 g l In the same time scouring agent was caustic soda and its concentration for all the bleaching agents was same It is obvious that with the increase of bleaching agent concentration whiteness index increases and bursting strength reduces