PROCESS FOR THE PRODUCTION OF CONCENTRATED SOLUTIONS

1378944 Solutions of dyes CIBA-GEIGY AG 14 Feb 1972 [15 Feb 1971] 6796/72 Heading C4P [Also in Division D1] Solutions of water-soluble anionic and cationic dyes are concentrated by cooling to a temperature below 0 C., the ice formed thereby being crushed and removed from the concentrated solution o...

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Bibliographische Detailangaben
Hauptverfasser:	BOSSHARD, HANS H, MARKERT, JURGEN
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES BLEACHING LEATHER OR FURS CHEMISTRY DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS,YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS DYES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR LAKES LAUNDERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS POLISHES TEXTILES TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:	1378944 Solutions of dyes CIBA-GEIGY AG 14 Feb 1972 [15 Feb 1971] 6796/72 Heading C4P [Also in Division D1] Solutions of water-soluble anionic and cationic dyes are concentrated by cooling to a temperature below 0 C., the ice formed thereby being crushed and removed from the concentrated solution of the dye. Cooling may be effected down to - 30 C., separation of the ice may be effected by centrifuging in a screening centrifuge, the final solution preferably containing 3 to 20 per cent by weight of dye.