Investigation on Simultaneous Effect of KMnO4 Concentration and Processing Time on Tensile Strength, Weight and Stiffness of Denim Jeans During Acid Washing with Pumice Stone

This present investigation deals with the effect of processing time and concentration of potassium permanganate on tensile strength, weight and stiffness of denim garments. Three 100% cotton denim jeans were treated with stone acid wash with the variation of processing time (1.5, 2 & 2.5 minutes) and concentration (1.5, 2& 2.5g/l) of potassium permanganate after typical enzyme bleach wash. Tensile Strength, Weight and Stiffness (bending length) were investigated before and after each treatment (concentration and respective time) according to standard test methods. It was found that change in processing time and concentration reveals big difference of these properties between treated and untreated garments.