MEDIATOR SYSTEMS BASED ON MIXED METAL COMPLEXES, USED FOR REDUCING DYES

MEDIATOR SYSTEMS BASED ON MIXED METAL COMPLEXES, USED FOR REDUCING DYES

Mediator systems obtainable by mixing a salt of an electrochemically active complexing metal (M1) capable of forming a plurality of valence states with a hydroxyl-containing complexing agent, which may likewise be present as salt, and with a salt of an electrochemically inactive complexing metal (M2...

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Hauptverfasser: GEORG SCHNITZER, EDUARD BURTSCHER, NORBERT GRUND, FRANZ SUETSCH, THOMAS BECHTOLD, PETER MAIER, WOLFGANG SCHROTT
Format: Patent
Sprache:eng ; por
Schlagworte:
APPARATUS THEREFOR
CHEMISTRY
DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM
DYEING OR PRINTING TEXTILES
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAUNDERING
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
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Zusammenfassung:Mediator systems obtainable by mixing a salt of an electrochemically active complexing metal (M1) capable of forming a plurality of valence states with a hydroxyl-containing complexing agent, which may likewise be present as salt, and with a salt of an electrochemically inactive complexing metal (M2) in an alkaline aqueous medium, wherefor the molar ratio of metal ion M2 to metal ion M1 is from 0.8:1 to 2:1 are useful for reducing dyes and dyeing cellulosic textile material.