PROCESS FOR THE MANUFACTURE OF FLUID DYESTUFF PREPARATIONS, AND THEIR USE

PROCESS FOR THE MANUFACTURE OF FLUID DYESTUFF PREPARATIONS, AND THEIR USE

Highly concentrated liquid preparations of disperse dyestuffs are obtained with a low consumption of energy by first adding a dispersing agent to the water-moist dyestuff press-cake to convert it into a form in which it is capable of flow, subjecting this product to wet grinding and increasing the d...

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Bibliographische Detailangaben
Hauptverfasser: WOLF, KARLHEINZ, BREMER, FRITZ, SCHIWY, WILLY, BRANDT, HORST, KOLL, JOCHEN, GRAD, MOLLS, HANS-HEINZ, HORNLE, REINHOLD, SCHUFFENHAUER, ERHARD, GRAD
Format: Patent
Sprache:eng ; 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:Highly concentrated liquid preparations of disperse dyestuffs are obtained with a low consumption of energy by first adding a dispersing agent to the water-moist dyestuff press-cake to convert it into a form in which it is capable of flow, subjecting this product to wet grinding and increasing the dyestuff content of the resulting, insufficiently concentrated dispersion in a second step by means of a membrane separation process, for example pressure permeation.