VERFAHREN ZUR HERSTELLUNG KONZENTRIERTER LOESUNGEN VON ANIONISCHEN FARBSTOFFEN UND FARBSTOFFADDITIVEN

VERFAHREN ZUR HERSTELLUNG KONZENTRIERTER LOESUNGEN VON ANIONISCHEN FARBSTOFFEN UND FARBSTOFFADDITIVEN

Stable, concentrated aqueous solutions of, in particular, anionic reactive dyestuffs are obtained in a comparatively simple manner by freeing from salts, preferably by means of membrane separation processes, solutions of these substances just as they are obtained in the course of synthesis, and by r...

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Bibliographische Detailangaben
Hauptverfasser: WOLF,KARLHEINZ,.DR, WOLFF,JOACHIM,.DR, MARIA,.KLIPPER,REINHOLD, MICHAEL,.LANGE,PETER, KOLL,JOCHEN
Format: Patent
Sprache:ger
Schlagworte:
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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Beschreibung
Zusammenfassung:Stable, concentrated aqueous solutions of, in particular, anionic reactive dyestuffs are obtained in a comparatively simple manner by freeing from salts, preferably by means of membrane separation processes, solutions of these substances just as they are obtained in the course of synthesis, and by replacing, with the aid of ion exchangers, the cations which cause sparing solubility.