The main objective of the present work was to replace the hazard chemicals which are used in discharge printing with an eco-friendly enzyme or yeast. The book starts with an introduction comprise a literature review on the enzymes (history, source, structure .etc.) as well as their application in textile industry. The experimental work comprise two chapters: in the first Laccase enzyme formulation has been used in discharge printing of cotton fabrics dyed with different reactive dyes and the effect of enzyme concentration, pH of the printing paste, enzymatic treatment time and...