Sulfur dyes and method of preparing same: membrane process

Details Sulfur dyes and method of preparing same: membrane process Sulfur dyes and method of preparing same: membrane process

1989-02-23

1991-02-12

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing process utilizing electric, magnetic, or wave energy;...

8532, 8650, 8652, 8918, 8921, 8924, 8927, D06P 520, C09B 4900, C09B 6728

Patent

active

049920782

ABSTRACT:
Improved sulfur dye dispersions are obtained by subjecting an aqueous suspension of oxidized sulfur dye particles to membrane separation. The oxidized sulfur dye is obtained by controlled aeration whereby the content of sulfides, polysulfur and inorganic salts is significantly decreased.

REFERENCES:
patent: 4329145 (1982-05-01), Koll et al.
patent: 4390342 (1983-06-01), Bruttel et al.
patent: 4466900 (1984-08-01), Horlacher et al.
patent: 4560746 (1985-12-01), Rebhan et al.
patent: 4689048 (1987-08-01), Fortsch et al.
patent: 4851011 (1989-07-01), Lacroix et al.
patent: 4865744 (1989-09-01), Hartling et al.
Orton, D. S., in Venkataraman's, "The Chemistry of Synthetic Dyes", vol. VII, (Academic Press, 1974), pp. 26-30.
Coldur Index (Third Edition), vol. 4, 1971, pp. 4475-4476.
Colour Index (Third Edition), vol. 3, 1971, pp. 3649-3651.

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