V.35,no.4,Dec 2023 https://doi.org/10.5764/TCF. Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2020 / V.32,no.3,Sept Title Quantitative Analysis of Relative Adsorption of Disperse Dyes on Polyurethane in Polyurethane-impregnated Polyester Microfibers Authors Heejeong Jun, Suhyeon Park, Junheon Lee and Taekyeong Kim* Institution/Affiliations Kyungpook National University Pages/Total page pp.121 ~ 127 / 7 Language Korean Abstract The analysis method of relative adsorption of disperse dyes on impregnated polyurethane resin and polyester fiber separately was investigated. The solvents for extracting the dyes from polyurethane resin and polyester fiber were determined by acetone and DMF, respectively. By extracting the dyed fibers with acetone at room temperature within 30 minutes, the dyes adsorbed only on the polyurethane resin could be extracted. And then by additional extracting the same fabrics with DMF at 95℃ for longer than 1 hour, the dyes adsorbed on polyester fabrics was extracted. This means that the dyes adsorbed on polyurethane and polyester could be extracted separately and that relative adsorption of the dyes on the both components could be analyzed quantitatively. Using this analysis method, the relative adsorption of a disperse dye was investigated after reduction clearing with various conditions. Keywords polyurethane, polyester, relative adsorption, extraction, disperse dye Download   Reference http://koreascience.or.kr/journal/OSGGBT/v32n3.page