Abstract
Denim washing is an aesthetic finish, which is given to denim fabric to enhance appeal and provide strength. In the case of denim washing, several wash effects can be produced, such as colour fading (with or without patchiness), seam puckering, depilling, crinkling, hairiness, etc. Traditional blue denim is dyed with indigo dye, which has poor substantivity. To create a unique denim look, the dye from the surface can be washed out by several denim washing methods, such as stone, sand, cellulase enzyme, sodium hypochlorite or potassium permanganate, hydrogen peroxide, laser, ozone, etc. However, processing denim is not always ecofriendly, as it creates significant environmental pollution.
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