CH324563A - Process for the preparation of a copper-containing disazo dye - Google Patents
Process for the preparation of a copper-containing disazo dyeInfo
- Publication number
- CH324563A CH324563A CH324563DA CH324563A CH 324563 A CH324563 A CH 324563A CH 324563D A CH324563D A CH 324563DA CH 324563 A CH324563 A CH 324563A
- Authority
- CH
- Switzerland
- Prior art keywords
- copper
- mol
- disazo dye
- parts
- preparation
- 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
- C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
- C09B33/02—Disazo dyes
- C09B33/12—Disazo dyes in which the coupling component is a heterocyclic compound
-
- 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
Zusatzpatent zum Hauptpatent Nr. 285139 Verfahren zur Herstellung eines kupferhaltigen Disazofarbstoffes Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines kupfer haltigen Disazofarbstoffes, welches darin be steht, dass man 2 Mol diazotiertes 2-Amino-l- carboxybenzol-5-sulfonsäure- (3'-methoxy)
-pro- pylamid mit 1 Mol des durch Umsetzen von 1 Mol eines F'umarsäuredihalogenids mit 2 Mol 1- [4" -Amino -1',1" - stilbenyl (4') ] -3-methyl-5- pyrazolon-2',2"-disulfonsäure erhältlichen Di- pyrazolons kuppelt und die so erhaltene Dis- azoverbindung mit einem kupferabgebenden Mittel behandelt.
Im nachfolgenden Beispiel bedeuten die Teile Gewichtsteilei. Beispiel 29 Teile 2-Amino-l-carboxybenzol-5-sulfon- säure-(3'-methoxy)-propylamid werden in 90 Teilen Wasser als Natriumsalz gelöst. Man versetzt die Lösung mit 7 Teilen Natrium nitrit, giesst sie hierauf in ein Gemisch aus 45 Teilen Salzsäure, 50 Teilen Eis und 100 Teilen Wasser und rührt die Masse so lange, bis keine freien Aminogruppen mehr nach weisbar sind.
Die so erhaltene Diazolösung vereinigt man in Gegenwart von überschüssi gem Natriumacetat mit einer Lösung aus 49 Teilen des durch Umsetzen von 1 Mol eines Fumarsäuredihalogenids mit 2 Mol 1-[4"- Amino-1',1"-stilbenyl(4') ]-3-methyl-5-pyrazo= Ion-2',2"-disulfonsäure erhältlichen Dipyrazo- lons in 1200 Teilen Wasser und rührt die Kupplungsmasse während einer Stunde bei 10-15 .
Die gebildete Disazoverbindung wird aus der Kupplungsmasse ausgesalzt und hier aus abfiltriert.
Zur Überführung in die Kupfemkomplex- verbinditng wird der Farbstoff bei 90 in 1500 Teilen Wasser gelöst. Nach Zusatz von 30 Teilen Natriumacetat wird die Lösung in ungefähr einer Stunde unter gutem Rühren mit so viel Teilen einer 201/oigen wässerigen Kupfersulfatlösung versetzt, bis im Filtrat einer ausgesalzenen Probe Kupferionen nach weisbar sind.
Der isolierte, getrocknete und gemahlene kupferhaltige Disazofarbstoff ist ein braunes Pulver, welches sich in Wasser und in kon zentrierter Schwefelsäure mit gelber Farbe löst. Seine Ausfärbungen auf Baumwolle und Fasern aus regenerierter Cellulose sind gelb und weisen ausgezeichnete Licht- und Nass- echtheiten auf.
Additional patent to main patent no. 285139 Process for the production of a copper-containing disazo dye The present patent relates to a process for the production of a copper-containing disazo dye, which consists in adding 2 mol of diazotized 2-amino-1-carboxybenzene-5-sulfonic acid- (3 '-methoxy)
propylamide with 1 mole of the reaction of 1 mole of a f'umaric acid dihalide with 2 moles of 1- [4 "-amino -1 ', 1" - stilbenyl (4')] -3-methyl-5-pyrazolone-2 ', 2 "-disulphonic acid coupled and the disazo compound thus obtained is treated with a copper-releasing agent.
In the following example, the parts mean parts by weight. Example 29 parts of 2-amino-1-carboxybenzene-5-sulfonic acid (3'-methoxy) propylamide are dissolved in 90 parts of water as the sodium salt. 7 parts of sodium nitrite are added to the solution, which is then poured into a mixture of 45 parts of hydrochloric acid, 50 parts of ice and 100 parts of water and the mixture is stirred until free amino groups can no longer be detected.
The diazo solution obtained in this way is combined in the presence of excess sodium acetate with a solution of 49 parts of the 1- [4 "-amino-1 ', 1" -stilbenyl (4')] - obtained by reacting 1 mol of a fumaric acid dihalide with 2 mols. 3-methyl-5-pyrazo = ion-2 ', 2 "-disulfonic acid dipyrazolone obtainable in 1200 parts of water and stir the coupling mass for one hour at 10-15.
The disazo compound formed is salted out of the coupling compound and filtered off from here.
To convert it into the copper complex compound, the dye is dissolved at 90 in 1500 parts of water. After 30 parts of sodium acetate have been added, enough parts of a 20% aqueous copper sulphate solution are added to the solution in about an hour while stirring well until copper ions can be detected in the filtrate of a salted-out sample.
The isolated, dried and ground copper-containing disazo dye is a brown powder, which dissolves in water and in concentrated sulfuric acid with a yellow color. Its coloration on cotton and regenerated cellulose fibers is yellow and has excellent light and wet fastness properties.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH324563T | 1954-06-25 | ||
| CH285139T | 1954-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH324563A true CH324563A (en) | 1957-09-30 |
Family
ID=25732488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH324563D CH324563A (en) | 1954-06-25 | 1954-06-25 | Process for the preparation of a copper-containing disazo dye |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH324563A (en) |
-
1954
- 1954-06-25 CH CH324563D patent/CH324563A/en unknown
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