Effect of Various Washing Process on Properties of Four Way Stretch Denim Fabric

Effect of various washing process on the properties of indigo dyed four-way stretch denim fabric was studied in this research. The different washing techniques (Dark washenzymatic treatment, Medium washenzymatic treatment with pumice stone, Bleach washenzymatic treatment with bleaching powder and pumice stone, Acid Wash-Enzymatic treatment with potassium permanganate and pumice stone) were applied on the fabric. Properties of four-way stretch denim fabric like tear strength, dimensional stability to washing, color fastness to washing, color fastness to water, color fastness to perspiration, color fastness to light, color fastness to ozone, color fastness to rubbing, fabric weight were investigated and compared with each other before and after washing process. All tests were carried out according to the ISO standards. Pollution load of washing effluent of different washing techniques were also evaluated to measure their impact on the environment. The surface analysis of the different washed fabric was examined by scanning electron microscope (SEM). From the result was examined then the best result observed in the fabric of medium wash in terms physicomechanical properties, chemical properties, pollution load of washing effluent, cost comparison, morphological changes of fabric surface. The results indicated that the durable and sustainable wash process for four-way stretch denimfabric is medium wash (enzymatic treatment with pumice stone).