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Dyeing Cellulose Fibers with Reactive Disperse Dyes in Supercritical Carbon DioxideIndustrial Technology Center of Okayama Prefecture; Okayama 701-1296, Japan
Industrial Technology Center of Okayama Prefecture; Okayama 701-1296, Japan
Industrial Technology Center of Okayama Prefecture; Okayama 701-1296, Japan
Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Jonan-ku, Fukuoka 814-0180, Japan Dyeing of cellulose fibers with reactive disperse dyes is attempted using supercritical carbon dioxide (SC-CO2) as a solvent at 393 K and 20 MPa. For pretreatment, cellulose fibers are treated with tetraethylene glycol dimethylether or N-methyl-2-pyrrolidinone. Results are compared with dyeing with other disperse dyes under the same conditions. The color yield of the fibers is assessed by K/S measurements before and after washing to investigate dyeing quality in this medium. Good color intensity and wash fastness are obtained.
Textile Research Journal, Vol. 72, No. 3,
240-244 (2002) |
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