Abstract


Denim washing is known as one of the finishing treatmentthat has vast usage because of creating special appearance and updatingclothes. Washing jean clothes are being developed and technology of denimwashing is the main part of clothes Industry. In current study, comparison ofdifferent washing methods is considered. Different methods of denim washingincluding the use of pumice stone, neutral and acid cellulases and alsocombination of pumice stone and cellulases. The change of color of resulting samplesare compared by the reflecting colorimeter of inside garment, outside garmentand pocket material after doing experiments. Tensile of samples is measured,XRD spectrum and crystalline degree also monitored. Furthermore, the surfacesof fibers in treated samples have been observed by SEM images. The result ofexperiments shows that neutral cellulases produced a fabric with higherlightness and increasing of enzyme adding to back staining. Denim treatmentwith 100% o.w.f pumice stone alone wasn't effective. However, combination of100% pumice stone with cellulases showed a good washing effect.


Keywords: Denim, Stone washing, Back-staining, Lightness,Cellulases, Pumice stone



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About the Authors


The authorsare associated with Department of Textile Engineering, Amirkabir University ofTechnology and Postgraduate Department, South Branch of Tehran Azad University, Tehran, Iran, respectively.