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EP0088727A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for the manufacture of metal complex dye preparations

Assignee: Novartis AG
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Filing: 1983-02-28
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Granted: —
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Expires: 2003-02-28
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Abstract

Abstract Translated from German Beschrieben wird ein Verfahren zur Herstellung von Metallkomplexfarbstoff-Praparaten unter Anwendung eines Membrantrennverfahrens, wobei man vor, während oder nach der letzten Synthesestufe des Metallkomplexfarbstoffes, die über 50°C heisse Syntheselösung mit einem anionischen Tensid versetzt und die Lösung anschliessend, vor Durchführung des Membrantrennverfahrens, auf ca. 30°C abkühlen lässt. Die so hergestellten Metallkomplexfarbstoff-Präparate finden Verwendung zur Herstellung von Färbebändern, Klotzflotten oder Druckpasten, die sich vor allem zum Färben und Bedrucken von Textilmaterial aus natürlichem und synthetischem Polyamid eignen. A process is described for the preparation of metal complex dye preparations using a membrane separation process, in which an anionic surfactant is added to the synthesis solution, which is above 50 ° C., before, during or after the last synthesis step of the metal complex dye, and the solution is then added before carrying out the membrane separation process. Allow to cool to approx. 30 ° C. The metal complex dye preparations produced in this way are used for the production of color ribbons, padding liquors or printing pastes which are particularly suitable for dyeing and printing textile material made of natural and synthetic polyamide.

Inventors

  • 👤 Paul Erzinger

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 18:14
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0096; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/92; Y10S8/924

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