PROCESS FOR THE PREPARATION OF CONCENTRATED SOLUTIONS OF CATIONIC DYES

Concentrated solutions of cationic dyes are prepared by treating the cationic dyes, which contain as the counterions the anions customarily present during their preparation, with alkali metal salts of monocarboxylic acids and with or without complexing agents in an aqueous glycol ether medium, and s...

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Bibliographic Details
Main Authors DIX, JOHANNES PETER, KAST, HELLMUT, HANSEN, GUENTER
Format Patent
LanguageEnglish
Korean
Published 05.06.1997
Edition6
Subjects
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Summary:Concentrated solutions of cationic dyes are prepared by treating the cationic dyes, which contain as the counterions the anions customarily present during their preparation, with alkali metal salts of monocarboxylic acids and with or without complexing agents in an aqueous glycol ether medium, and separating off the organic phase, which contains the dyes in the form of their monocarboxylic acid salts.
Bibliography:Application Number: KR19890014022