Oxidation of vat and sulfur dyes with vanadate activated...

Details Oxidation of vat and sulfur dyes with vanadate activated... Oxidation of vat and sulfur dyes with vanadate activated...

D - Textiles, Paper

06

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8/14

D06P 1/30 (2006.01) D06P 1/22 (2006.01) D06P 1/673 (2006.01) D06P 3/52 (2006.01) D06P 3/70 (2006.01)

Patent

CA 1062855

ABSTRACT An improved process for oxidizing vat or sulfur dyes is provided wherein the reduced form of the dye is oxidized by contact with an aqueous oxidizing solution comprising an alkali metal or ammonium vanadate and an oxidant comprising an alkali metal or ammonium bromate or iodate.

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