Gegen Brandgefahr durch Feuchtigkeits-einwirkung stabilisierte, Dithionite enthaltende Mischungen als Bleich- und Faerbehilfsmittel

Gegen Brandgefahr durch Feuchtigkeits-einwirkung stabilisierte, Dithionite enthaltende Mischungen als Bleich- und Faerbehilfsmittel

A mixture containing a major proportion of one or more dithionites is stabilized by a minor amount of a dry, powdered, readily water-soluble synthetic polymer having a K value between 20 and 280, preferably between 40 and 50, which is not capable of reacting chemically with the dithionites under the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: POSCHMANN FRANZ, JANSON ALFONS
Format: Patent
Sprache:ger
Schlagworte:
BLEACHING LEATHER OR FURS
CHEMISTRY
COMPOUNDS THEREOF
DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS,YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS
DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM
DYEING OR PRINTING TEXTILES
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
INORGANIC CHEMISTRY
LAUNDERING
METALLURGY
NON-METALLIC ELEMENTS
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:A mixture containing a major proportion of one or more dithionites is stabilized by a minor amount of a dry, powdered, readily water-soluble synthetic polymer having a K value between 20 and 280, preferably between 40 and 50, which is not capable of reacting chemically with the dithionites under the conditions of storage and transportation. The dithionites may be those of sodium and other alkali metals, or of zinc, or ammonium dithionite. Polymers which may be used, in amount, say, 1 to 5%, include homo- and co-polymers of (meth)acrylic acid, (meth)acrylamide, vinyl alcohol, ethylenimine, vinylpyrrolidone and acetals, and polymers of diethylaminomethylene (meth)acrylamide. The mixture may also contain carbonates, sulphates and polyphosphates.