Bleaching and dyeing; fluid treatment and chemical modification – Dye recovery process – other than nominal recovery
Patent
1986-05-09
1987-12-29
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Dye recovery process, other than nominal recovery
8400, 8502, 8504, 8904, 8906, 8907, 8908, 8922, 8924, D06P 354, D06P 520
Patent
active
047158638
ABSTRACT:
A process is described for dyeing hydrophobic fibre material with unfinished disperse dyes from an aqueous liquor, which comprises dissolving one or more such dyes in water at a temperature of 50.degree. to 150.degree. C. by means of a surfactant or surfactant mixture with a hydrotroping or solubilizing action on disperse dyes, bringing the dye solution together with the substrate in a dyeing apparatus, then heating the dyeing liquor to the dyeing temperature and completing the dyeing at that temperature and then removing the substrate and restoring the exhausted dyeing liquor to the original composition by adding water, surfactant and dye and using it again for dyeing.
REFERENCES:
patent: 4249902 (1981-02-01), Kruckenberg et al.
patent: 4391606 (1983-07-01), Kruckenberg et al.
Tincher, W. C., American Dyestuff Reporter, 1977 (May), 66, pp. 36-72.
Cook, F. L. and Tincher, W. C., Textile Chemist and Colorist, 1978 (Jan.), 10, pp. 21-25.
American Dyestuff Reporter, Wayne C. Tincher, "Energy Conservation in Carpet Dyeing by Dyebath Recycling" 36-72, (May 1977).
Wayne C. Tincher, "Conservation of Water, Chemicals, and Energy in Dyeing Nylon Carpet", U.S. Dept. of Commerce, National Technical Information Service PB-277 988 (Nov. 1977).
Energy Conservation in Textile and Polymer Processing, F. L. Cook and W. C. Tincher, 107, pp. 201-241 (1979).
Textile Chemist and Colorist, F. L. Cook and W. C. Tincher, "Dyebath Reuse in Batch Dyeing" pp. 21-25, (Jan. 1978) 10 (1).
Textile Chemist and Colorist, W. W. Carr and F. L. Cook, "Saving in Dyebath Reuse Depend on Variations In Impurity Concentrations", pp. 106-110 (1980).
Abel Heinz
Navratil Josef
Ciba-Geigy Corporation
Clingman A. Lionel
Findlay Meredith C.
McC. Roberts Edward
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