Abstract
The color matching and levelness of cotton fabrics dyed with reactive dye, in a non-aqueous environmentally-friendly medium of decamethylcyclopentasiloxane (D5), was investigated using the non-ionic surfactant reverse-micellar approach comprised of poly(ethylene glycol)-based surfactant. The calibration dyeing databases for both conventional water-based dyeing and D5-assisted reverse micellar dyeing were established, along with the dyeing of standard samples with predetermined concentrations. Computer color matching (CCM) was conducted by using different color difference formulae for both dyeing methods. Experimental results reveal that the measured concentrations were nearly the same as the expected concentrations for both methods. This indicates that the D5-assisted non-ionic reverse micellar dyeing approach can achieve color matching as good as the conventional dyeing system. The levelness of the dyed samples was measured according to the relative unlevelness indices (RUI), and the results reveal that the samples dyed by the D5 reverse micellar dyeing system can achieve good to excellent levelness comparable to that of the conventional dyeing system.
Highlights
Textile wet processing has long been considered to be a significant consumer of water and producer of effluents [1,2]
This study has several objectives: (a) establishing the calibration of the dyeing database for both conventional water-based dyeing and D5 solvent-assisted reverse micellar dyeing; (b) dyeing of standard samples with predetermined concentrations of reactive dyes using the conventional water-based dyeing method and the D5 solvent-assisted reverse micellar dyeing method; (c) conducting computer color matching to generate the dyeing recipe by using different color difference formulae to ensure that concentrations of the dyed standard samples match the concentrations of the batch samples; (d) measuring the color levelness of dyed samples; and (e) comparing the differences between conventional water-based dyeing and D5 solvent-assisted dyeing
The computer color matching and levelness of cotton fabrics dyed in non-aqueous medium of decamethylcyclopentasiloxane (D5) with reactive dye was investigated using a non-ionic surfactant reverse-micellar approach comprised of poly(ethylene glycol)-based surfactant and was compared with the conventional water-based dyeing system
Summary
Textile wet processing has long been considered to be a significant consumer of water and producer of effluents [1,2]. The feasibility of applying the computer color matching system on decamethylcyclopentasiloxane (D5) non-aqueous dyeing of cotton has not yet been studied. The feasibility of applying the computer color matching system on decamethylcyclopentasiloxane (D5) non-aqueous dyeing of cotton is still unknown. This study has several objectives: (a) establishing the calibration of the dyeing database for both conventional water-based dyeing and D5 solvent-assisted reverse micellar dyeing; (b) dyeing of standard samples with predetermined concentrations of reactive dyes using the conventional water-based dyeing method and the D5 solvent-assisted reverse micellar dyeing method; (c) conducting computer color matching to generate the dyeing recipe by using different color difference formulae to ensure that concentrations of the dyed standard samples match the concentrations of the batch. Samples; (d) measuring the color levelness of dyed samples; and (e) comparing the differences between conventional water-based dyeing and D5 solvent-assisted dyeing
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