Application of Laser Treatment for Enhanced Dyeability and Comfort Properties of Bleached Cotton/Polyester

摘要

In this study, the effect of laser CO2 irradiation on the dyeability of the bleached cotton/polyester fabric was studied. The fabric samples have been treated with laser CO2 irradiation under three different lasers CO2 power before dyeing, hot reactive dye was used for dyeing goods. CIE LAB colorimetric system was used for determination of colour difference between treated and untreated fabrics. The morphology of treated fibers was characterized by scanning electron microscopy. Scanning electron microscopy images indicate changes on the surface of fiber. The colour changes (ΔE*) of samples are increased with laser CO2 pre-treatment and also those samples with laser CO2 pre-treatment are yellower in colour. The results confirmed that the laser treated fabrics higher light fastness and wet fastness, while tensile strength of fibers was affected adversely by laser irradiation. The laser CO2 irradiation had positive effect on the wet ability of the bleached cotton/polyester fabrics as the bleached cotton/polyester fabrics became more hydrophilic. The laser irradiation also caused more air permeability the bleached cotton/polyester fabrics.