CH312964A - Process for the preparation of a copper-containing polyazo dye of the stilbene series - Google Patents
Process for the preparation of a copper-containing polyazo dye of the stilbene seriesInfo
- Publication number
- CH312964A CH312964A CH312964DA CH312964A CH 312964 A CH312964 A CH 312964A CH 312964D A CH312964D A CH 312964DA CH 312964 A CH312964 A CH 312964A
- Authority
- CH
- Switzerland
- Prior art keywords
- copper
- polyazo dye
- stilbene
- parts
- brown
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B56/00—Azo dyes containing other chromophoric systems
- C09B56/04—Stilbene-azo dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/24—Disazo or polyazo compounds
- C09B45/28—Disazo or polyazo compounds containing copper
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines kupferhaltigen Polyazofarbstoffes der Stilbenreihe Es wurde gefunden, dass ein neuer, wert voller, kupferhaltiger Polyazofarbstoff der Stilbenreihe dadurch erhalten wird, da.ss man 1 31o1 1.,3-Dioxybenzol mit der Diazoverbin- dung aus 1 Mol 4-Amino-4'-(4"-oxyphenyl-1"- azo)-1,1'-stilben-2,2'-disulfonsäure vereinigt,
hierauf auf das Reaktionsprodukt 1 Mol di- azotierte 2-Amino-l-oxybenzol-4-sulfonsätire einwirken lässt und den so erhaltenen Poly- azofarbstoff mit kupferabgebenden Mitteln behandelt.
Der neue, kupferhaltige Polyazofarbstoff der Stilbenreihe ist ein braunschwarzes Pul ver. welches sich in Wasser mit rotbrauner Farbe löst und Chromvelourleder in lebhaf ten, rotstiehig braunen, schleifechten Tönen färbt.
Im. nachfolgenden Beispiel bedeuten die Teile Gewiehtsteile, und die@Prozente sind in Gewiehtsprozenten angegeben.
Beispiel: 47,5 Teile 4-Amino-4'-(4"-oxyphenyl-1"-azo)- 1,1'-stilben-2,2'-disulfonsäure werden in Form des Natriumsalzes in 1000 Teilen Wasser gelöst und durch Zugabe einer Lösung von 7 Teilen Natriumnitrit in 20 Teilen Wasser und 30 Teilen 301higer Salzsäure bei 1.0 diazotiert. Die Lösung der Diazoverbindung lässt man zu einer Lösung aus 11 Teilen 1,3-Dioxybenzol, <B>35</B> Teilen Natiiumcarbonat und 200 Teilen Wasser fliessen.
Nach erfolgter Vereinigung werden der Kupplungslösung weitere 40 Teile Natriumcärbonat zugegeben. Alsdann setzt man ihr eine Lösung der Diazoverbindung aus 18,9 Teilen 2-Amino-l-oxybenzol-4-sulfon- säure zu. Nach beendigter Kupplung scheidet man den gebildeten Polyazofarbstoff durch Zusatz von Natriumchlorid aus der Kupp lungslösung ab und filtriert ihn hierauf ab.
Zur Überführung in die Kupferkomplex verbindung wird der feuchte Filterkuchen bei 60 in 1200 Teilen Wasser gelöst. Die Farb- stofflösung versetzt man mit 15 Teilen Na triumacetat und einer konzentrierten wässeri gen Lösung aus 25 Teilen kristallisiertem Kupfersulfat und rührt sie während drei Stunden bei 60-70 . Der gebildete kupfer haltige Polyazofarbstoff wird aus der Kup- ferungslösung ausgesalzt, abfiltriert und ge trocknet.
Er stellt ein braunschwarzes Pulver dar, welches sich in Wasser mit rotbrauner Farbe löst und Chromvelourleder in lebhaf ten, rotstichig braunen, schleifechten Tönen färbt.
Process for the preparation of a copper-containing polyazo dye of the stilbene series It has been found that a new, valuable, copper-containing polyazo dye of the stilbene series is obtained by adding 1,311,1,3-dioxybenzene with the diazo compound of 1 mol of 4-amino -4 '- (4 "-oxyphenyl-1" - azo) -1,1'-stilbene-2,2'-disulfonic acid combined,
then 1 mol of diacotized 2-amino-1-oxybenzene-4-sulfonic acid is allowed to act on the reaction product and the resulting polyazo dye is treated with copper-releasing agents.
The new, copper-containing polyazo dye from the stilbene range is a brown-black powder which dissolves in water with a reddish brown color and dyes chrome suede in lively, reddish brown, abrasion-resistant tones.
In the example below, the parts are parts by weight and the percentages are given in percentages by weight.
Example: 47.5 parts of 4-amino-4 '- (4 "-oxyphenyl-1" -azo) -1,1'-stilbene-2,2'-disulphonic acid are dissolved in 1000 parts of water in the form of the sodium salt and poured through Addition of a solution of 7 parts of sodium nitrite in 20 parts of water and 30 parts of 301h hydrochloric acid at 1.0 diazotized. The solution of the diazo compound is allowed to flow into a solution of 11 parts of 1,3-dioxybenzene, 35 parts of sodium carbonate and 200 parts of water.
After the combination has taken place, a further 40 parts of sodium carbonate are added to the coupling solution. A solution of the diazo compound consisting of 18.9 parts of 2-amino-1-oxybenzene-4-sulfonic acid is then added to it. After coupling is complete, the polyazo dye formed is separated off from the coupling solution by adding sodium chloride and it is then filtered off.
For conversion into the copper complex compound, the moist filter cake is dissolved in 1200 parts of water at 60. The dye solution is mixed with 15 parts of sodium acetate and a concentrated aqueous solution of 25 parts of crystallized copper sulfate and stirred for three hours at 60-70. The copper-containing polyazo dye formed is salted out of the copper solution, filtered off and dried.
It is a brown-black powder that dissolves in water with a reddish brown color and dyes chrome suede in lively, reddish brown, abrasive tones.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH312964T | 1952-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH312964A true CH312964A (en) | 1956-03-15 |
Family
ID=4495030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH312964D CH312964A (en) | 1952-12-24 | 1952-12-24 | Process for the preparation of a copper-containing polyazo dye of the stilbene series |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH312964A (en) |
-
1952
- 1952-12-24 CH CH312964D patent/CH312964A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH312964A (en) | Process for the preparation of a copper-containing polyazo dye of the stilbene series | |
CH313109A (en) | Process for the preparation of a copper-containing polyazo dye of the stilbene series | |
CH313110A (en) | Process for the preparation of a copper-containing polyazo dye of the stilbene series | |
CH313103A (en) | Process for the preparation of a copper-containing polyazo dye of the stilbene series | |
CH232825A (en) | Process for the preparation of an azo dye. | |
CH132212A (en) | Process for producing a solid diazoazo compound. | |
CH313112A (en) | Process for the preparation of a copper-containing polyazo dye of the stilbene series | |
CH132204A (en) | Process for producing a solid diazoazo compound. | |
CH249789A (en) | Process for the preparation of a substantive azo dye. | |
CH313113A (en) | Process for the preparation of a copper-containing polyazo dye of the stilbene series | |
CH313107A (en) | Process for the preparation of a copper-containing polyazo dye of the stilbene series | |
CH313111A (en) | Process for the preparation of a copper-containing polyazo dye of the stilbene series | |
CH132198A (en) | Process for producing a solid diazoazo compound. | |
CH313106A (en) | Process for the preparation of a copper-containing polyazo dye of the stilbene series | |
CH136386A (en) | Process for the preparation of a polyazo dye. | |
CH132205A (en) | Process for producing a solid diazoazo compound. | |
CH222993A (en) | Process for the preparation of an azo dye. | |
CH313117A (en) | Process for the preparation of a nickel-containing polyazo dye of the stilbene series | |
CH132196A (en) | Process for producing a solid diazoazo compound. | |
CH132191A (en) | Process for producing a solid diazoazo compound. | |
CH132200A (en) | Process for producing a solid diazoazo compound. | |
CH313104A (en) | Process for the preparation of a copper-containing polyazo dye of the stilbene series | |
CH304389A (en) | Process for the preparation of a yellow monoazo dye. | |
CH138229A (en) | Process for the production of a new azo dye. | |
CH132199A (en) | Process for producing a solid diazoazo compound. |