Liquid compositions of prereduced sulfur dyes and production thereof

Liquid compositions of sulfur dyes in reduced form are obtained by reducing a sulfur dye in an alkaline medium to which no sulfide reducing agent has been added, preferably employing a reducing sugar as reducing agent and a sulfur dye which has been washed to remove inorganic salts therefrom.

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Bibliographic Details
Main Author MESZAROS LASZLO A
Format Patent
LanguageEnglish
Published 20.02.1996
Edition6
Subjects
ADHESIVES
CHEMISTRY
DYES
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
POLISHES
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Summary:Liquid compositions of sulfur dyes in reduced form are obtained by reducing a sulfur dye in an alkaline medium to which no sulfide reducing agent has been added, preferably employing a reducing sugar as reducing agent and a sulfur dye which has been washed to remove inorganic salts therefrom.
Bibliography:Application Number: US19880145545