Study of the removal of a disperse dye stain from a polyester/elastane blend |
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| Authors: | Potjanart Suwanruji Lanlalit Chuaybamrung Jantip Suesat Supa Hannongbua John A Taylor Duncan A S Phillips |
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| Affiliation: | 1. Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand Email: fscipjs@ku.ac.th;2. Department of Textile Science, Faculty of Agro‐Industry, Kasetsart University, Bangkok 10900, Thailand;3. Colour Synthesis Solution Ltd., Hexagon Tower, PO Box 42, Delaunays Road, Blackley, Manchester M9 8ZS, UK |
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| Abstract: | Polyethylene terephthalate and elastane fabrics were treated with azo disperse dyes in the same dyebath at 130 °C for 0, 30 and 60 min and then reduction cleared. The dyes adsorbed on each fabric were extracted using monochlorobenzene, in order to determine the amount of disperse dye in each of the polyethylene terephthalate and elastane fabrics, as the dyeing time was increased. It was observed that the amount of dye on the polyethylene terephthalate increased, while that on the elastane decreased, as the time at 130 °C increased from 0 to 60 min. After reduction clearing, the partition ratio of disperse dyes between the polyethylene terephthalate and the elastane increased. The dyed polyethylene terephthalate/elastane blend indicated that those dyes, which exhibited high partition ratios (polyethylene terephthalate:elastane), exhibited correspondingly higher wet fastness properties. |
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