Carbon Dioxide Laser as a Sustainable Method for Producing a Pattern on Denim Fabric: Evaluation of Colour and Durability

Laser treatment of denim fabrics was demonstrated as one the methods producing distressed effects and is continuing to attract textile fashion designers develop bespoke designs that appeal all age groups. Two dark shaded indigo-dyed 100% cotton twill fabric with varying weights representing various garment applications were laser treated using a commercially available pulsed CO2 wavelength 10.62�m. Pulses per inch, which degree closeness irradiation, maintained at 300 400 PPI. Treated evaluated for tensile strength, colour measurements, including hue (H), saturation (S), brightness (B), reflectance, K/S (colour yield), CIE L* a* b*, thickness colourfastness after wash. Results indicated contrast enhanced increase in grayscale (tone density) both LW (lightweight) HW (heavyweight) fabrics, mainly lower speed (80%) higher power (40%). At (30% GS), surface fibers charred due oxidation cellulose occurred, causing distinct yellow tone compared pristine denim. Fabric strength affected parameters increased, variation from 40 - 45% 30% GS, whilst fabric, 25-30%. Colourfastness tests revealed limited staining, it removed showing change. This research recommends combination produce patterns without affecting overall quality fabric.