CH248703A - Process for the preparation of a copper-containing disazo dye. - Google Patents
Process for the preparation of a copper-containing disazo dye.Info
- Publication number
- CH248703A CH248703A CH248703DA CH248703A CH 248703 A CH248703 A CH 248703A CH 248703D A CH248703D A CH 248703DA CH 248703 A CH248703 A CH 248703A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- copper
- disazo dye
- dye
- preparation
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines kupferhaltigen Disazofarbstoffe8 Gegenstand des vorliegenden Z-Luatz- patentes ist ein Verfahren zur Herstellung eines kupferlialtigen Disazofarbstoffes, da durch gekennzeichnet, dass der Disazefarb- Stoff [2,8-Dioxynaphtha.Iin-6-sulionsäurel- (1-azo-4)- [3,3'-dimetlioxy-diphenyl]-(4'-azo- 1) <B>-</B> r2-oxynaphtlialin-3,
6-disulfons#Lure] mit kupferabgebenden Mitteln behandelt wird.
Der neue, kupferhaltige Farbstoff färbt die Cellulosefaser in reinblauen Tönen.
EMI0001.0017
<I>Beispiel:</I> Man stellt in an sieh bekannter Weise den asymmetrischen Disazofarbstoff aus<B>61</B> Teilen 4,4'-Dia.mino-3,3'-dimethoxy-diphenyl, <B>60</B> Teilen 92,8-Dioxynaphthalin-6-sulfonsäure und<B>76</B> Teilen 2-Oxynaphthalin-3,6-disulfon- Säure dar.
Der abfiltrierte Disazofarbstoff wird in der 10faehen Menge heissem Wasser unter Zusatz von 50Vol.-Teilen 23%iger Am- moniaklösung gelöst. Man erwärmt auf<B>85</B> bis<B>90'</B> und versetzt allmählich mit einer Lösung von<B>150</B> Teilen krist. Kupfersulfat in Überschüssigem Ammoniak.
Man hält die Tempera,tur unter Rühren während 12 Stun den bei<B>85-90'.</B> Nach dem Erha.Iten wird die neue Kupferkomplexverbindung durch Aussalzen abgeschieden, abfiltriert, mit io%iger Kochsalzlösung gewaschen und dann getrocknet.
Der neue Farbstoff bildet ein violett- schwarzes Pulver, das sieh in heissem Wasser mit violettbla.uer, in konz. Schwefelsäure mit grünstichig blauer Farbe löst.
Die Cellulosefaser wird in lichtechten reinblauen Tönen gefärbt.
Process for the production of a copper-containing disazo dye8 The subject matter of the present Z-Luatz patent is a process for the production of a copper-like disazo dye, characterized in that the disazo dye substance [2,8-dioxynaphtha.Iin-6-sulionic acid- (1-azo- 4) - [3,3'-dimetlioxy-diphenyl] - (4'-azo-1) <B> - </B> r2-oxynaphtlialin-3,
6-disulfons # Lure] is treated with copper-releasing agents.
The new, copper-containing dye dyes the cellulose fiber in pure blue tones.
EMI0001.0017
<I> Example: </I> The asymmetric disazo dye is prepared in a manner known per se from <B> 61 </B> parts of 4,4'-dia.mino-3,3'-dimethoxy-diphenyl, <B> 60 parts of 92,8-dioxynaphthalene-6-sulfonic acid and 76 parts of 2-oxynaphthalene-3,6-disulfonic acid.
The filtered disazo dye is dissolved in 10 times the amount of hot water with the addition of 50 parts by volume of 23% ammonia solution. It is heated to <B> 85 </B> to <B> 90 '</B> and a solution of <B> 150 </B> parts of crystalline is gradually added. Copper sulfate in excess ammonia.
The temperature is kept at 85-90 'for 12 hours with stirring. After it has been obtained, the new copper complex compound is separated out by salting out, filtered off, washed with 10% sodium chloride solution and then dried.
The new dye forms a violet-black powder, which looks violet-blue in hot water, in conc. Sulfuric acid with a greenish blue color.
The cellulose fiber is dyed in lightfast, pure blue tones.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH248703T | 1945-03-22 | ||
CH244051T | 1945-03-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH248703A true CH248703A (en) | 1947-05-15 |
Family
ID=25728900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH248703D CH248703A (en) | 1945-03-22 | 1945-03-22 | Process for the preparation of a copper-containing disazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH248703A (en) |
-
1945
- 1945-03-22 CH CH248703D patent/CH248703A/en unknown
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