CH176234A - Process for the production of a nitrogenous vat dye of the anthraquinone series. - Google Patents
Process for the production of a nitrogenous vat dye of the anthraquinone series.Info
- Publication number
- CH176234A CH176234A CH176234DA CH176234A CH 176234 A CH176234 A CH 176234A CH 176234D A CH176234D A CH 176234DA CH 176234 A CH176234 A CH 176234A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- anthraquinone series
- nitrogenous
- vat dye
- vat
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines stickstoffhaltigen Küpenfarbstoffes der Anthrachinonreihe. Vorliegendes Patent bezieht sich auf ein Verfahren zur Herstellung eines stickstoff haltigen Küpenfarbstoffes der Anthrachinon- reihe, dadurch gekennzeichnet, dass man 1 Mol des Kondensationsproduktes, das durch Einwirkung eines sauren Kondensationsmit tels auf das Kondensationsprodukt von 1-Chloranthron mit CTlyoxalsulfat erhalten wird,
mit ? Mol 1-Aminoanthrachinon um setzt.
Der neue Farbstoff löst sich -in konzen- trirrter Schwefelsäure mit dichroitisch grün blauer Farbe. die auf Zusatz von Paraform- aldehyd nach Reinblau umschlägt. Er lässt sich leicht mit braunvioletter Farbe verküpen und färbt aus der Küpe Baumwolle in dunkel braunen Tönen von guter Echtheit an.
<I>Beispiel,:</I> 48 Teile des braunen Kondensationspro duktes aus 1-Chloranthron und Glyoxalsulfat und 50 Teile a-Aminoanthrachinon werden zusammen mit 20 Teilen Pottasche und 5 Teilen feinem Kupferoxyd in 500 Teilen Naplitbalin etwa 8 Stunden auf 200 bis 210 C erhitzt. Nach dem Verdünnen mit etwa 500 Teilen Chlorbenzol und Auswaschen erhält man ein dunkelrotbraunes Kristall pulver.
Process for the production of a nitrogenous vat dye of the anthraquinone series. The present patent relates to a process for the production of a nitrogen-containing vat dye of the anthraquinone series, characterized in that 1 mol of the condensation product obtained by the action of an acidic condensation agent on the condensation product of 1-chloranthrone with C-lyoxal sulfate is obtained,
With ? Mol of 1-aminoanthraquinone sets.
The new dye dissolves in concentrated sulfuric acid with a dichroic green-blue color. which changes to pure blue upon the addition of paraformaldehyde. It can be easily vetted with a brown-violet color and dyes cotton in dark brown shades of good fastness from the vat.
<I> Example: </I> 48 parts of the brown condensation product from 1-chloroanthrone and glyoxal sulfate and 50 parts of a-aminoanthraquinone together with 20 parts of potash and 5 parts of fine copper oxide in 500 parts of naplitbalin for about 8 hours for 200 to 210 C heated. After dilution with about 500 parts of chlorobenzene and washing out, a dark red-brown crystal powder is obtained.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE176234X | 1932-09-07 | ||
CH170452T | 1933-07-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH176234A true CH176234A (en) | 1935-03-31 |
Family
ID=25718931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH176234D CH176234A (en) | 1932-09-07 | 1933-07-28 | Process for the production of a nitrogenous vat dye of the anthraquinone series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH176234A (en) |
-
1933
- 1933-07-28 CH CH176234D patent/CH176234A/en unknown
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