Effects of pressure and temperature on dyeing acrylic fibres with basic dyes in supercritical carbon dioxide |
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| Authors: | J H Jun K Sawada T Takagi G B Kim C H Park M Ueda |
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| Affiliation: | Division of Material Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585 Japan Email:;Department of Chemistry and Material Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan;Department of Chemistry and Material Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan;College of Science &Engineering, Jinju National University, 150, Chilam-dong, Jinju 660-758, Korea;College of Human Ecology, Dong-a University, 840, Hadan 2-Dong, Saha-gu, Busan 604-714, Korea;Department of Design Engineering and Management, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan |
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| Abstract: | The dyeing of acrylic fibre with CI Basic Blue 47 has been investigated using an ammonium carboxylate perfluoropolyether as an auxiliary in order to perform the reverse micellar system in supercritical carbon dioxide media. The basic dye was satisfactorily solubilised in the interior of the reverse micelle in the system, and dyeability in the supercritical carbon dioxide media was excellent, even in the absence of a retardant and/or an acid. The optimum proton-rich condition for dyeing of acrylic fabric is performed in reverse micelle aggregates and the proton-rich water pool is suitable for dye uptake by the fibre even without the presence of additives. Changes in glass transition temperature of acrylic fibre in the carbon dioxide media also influence the dyeing behaviour of acrylic fabric. |
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