Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Sulfur dye or vat dye
Patent
1987-06-23
1988-06-21
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Sulfur dye or vat dye
8646, 8918, 435121, 435118, C09B 700, C09B 6100, C12P 1710
Patent
active
047523018
ABSTRACT:
A biomass containing biologically produced indigo or a derivative thereof which is used for dyeing without isolating the indigo dye from the rest of the solid biomass before dyeing. Cotton dyeings of clean pure shade can be obtained by a vat dyeing procedure which have the usual fastness properties associated with the active substance.
REFERENCES:
patent: 4520103 (1985-05-01), Ensley
Clingman A. Lionel
Doyle Thomas C.
Sandoz Ltd.
Sharkin Gerald D.
Vila Richard E.
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