Color Fading of Indigo-dyed Cotton Denim Fabric by Laser

Laser allows short-time surface engraving of the patterns of desired variety, size, and intensity on a wide range of textile surfaces with precision and without much damaging the texture of the materials. The laser application in textile material has been applied possible to make denim fabric looked faded and worn out without the use chemical process. In this study, laser was applied on the denim fabric in order to evaluate its effect on fabric shade. The laser power density increased in response to the increase in the level of pixel time and resolution. Under the effect of high laser power density, a paler surface appearance was noted in the denim fabrics and the K/S-sum values indicated that the amount of dye on denim fabric was decreased significantly.