A Study of CO2 Laser Treatment on Colour Properties of Cotton-Based Fabrics
AbstractIn this study, laser was applied to two types of cotton-based woven fabrics in order to study the effect of CO2 laser technology on colour and fabric strength properties. The woven fabrics had different fibre compositions, i.e., one was 100% cotton while the other had 60% cotton blended with 40% polyester. They were treated with different combinations of laser processing parameters, i.e., resolution (52, 60, and 68 dpi) and pixel time (110, 120, 130, and 140 μs). There were two approaches adopted: (1) laser treated and then dyed (LD); and (2) first dyed and then laser treated (DL), in order to study the effects of the two different sequences on the resultant colour. Colour properties include reflectance value, colour yield, CIE L*a*b* values and levelness measured by spectrophotometer; pH value and tensile strength were also measured. It was discovered that laser treatment had no influence on chromaticity of cotton fabrics. Moreover, fabrics treated with laser had a lighter shade than the control samples. This confirmed that both approaches, i.e., laser treatment conducted before and after dyeing, can provide a colour fading effect. The tensile strength of fabrics was affected differently in relation to the dyeing and laser process. According to results obtained from the pH measurement, it is confirmed that laser treatment can provide a colour fading effect without affecting the pH value, and the fabrics can be used instantly right after the laser treatment. View Full-Text
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Hung, O.-N.; Kan, C.-W. A Study of CO2 Laser Treatment on Colour Properties of Cotton-Based Fabrics. Coatings 2017, 7, 131.
Hung O-N, Kan C-W. A Study of CO2 Laser Treatment on Colour Properties of Cotton-Based Fabrics. Coatings. 2017; 7(8):131.Chicago/Turabian Style
Hung, On-na; Kan, Chi-wai. 2017. "A Study of CO2 Laser Treatment on Colour Properties of Cotton-Based Fabrics." Coatings 7, no. 8: 131.