CH293861A - Process for the preparation of a copper-compatible polyazo dye. - Google Patents
Process for the preparation of a copper-compatible polyazo dye.Info
- Publication number
- CH293861A CH293861A CH293861DA CH293861A CH 293861 A CH293861 A CH 293861A CH 293861D A CH293861D A CH 293861DA CH 293861 A CH293861 A CH 293861A
- Authority
- CH
- Switzerland
- Prior art keywords
- copper
- mol
- parts
- oxy
- 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
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/02—Disazo dyes
- C09B35/039—Disazo dyes characterised by the tetrazo component
- C09B35/28—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 261125. Verfahren zur Herstellung eines kupferbaren Polyazofarbstoffes. Gegenstand vorliegenden Patentes ist ein Verfahren zur Herstellung eines kupferbaren Polyazofarbstoffes. Das Verfahren ist da durch gekennzeichnet, dass man 1 Mol der Tetrazoverbindung von 1-(3'-Amino-4'-oxi-- benzoylamino) - 4 - amino-benzol - 3 - carbonsäure einerseits mit 1 Mol 1-(4'-Amino-phenyl)
-3- methyl-5-pyrazolon und anderseits mit 1 Mol 1-Oxy-naphthalin-4-sillfonsäure kuppelt. Der erhaltene neue Disazofarbstoff stellt ein dunkelbraunes Pulver dar, das sich in Wasser mit schmutzig olivbrauner und in konz. Schwefelsäure mit roter Farbe löst und Zellulosefasern in braunen Tönen anfärbt, welche nach Behandlung mit Kupfersalzen ausgezeichnete Echtheiten aufweisen.
<I>Beispiel:</I> 28,7 Teile 1-(3'-Amino-4'-oxy-benzoyl- amino)-4-amino-benzol-3-carbonsäure werden in 400 Teilen Wasser mit 8 Teilen Natronlauge kalt gelöst, mit 13,8 Teilen Natriumnitrit ver mischt und in der Kälte unter Rühren auf 40 Teile konz. Salzsäure und 80 Teile Wasser aufgetropft, die überschüssige Mineralsäure mit Natriumbiearbonat abgestumpft und dann mit<B>18,9</B> Teilen 1-(4'-Amino-phenyl)-3-me- thyl-5-pyrazolon, gelöst in 200 Teilen Wasser bei Gegenwart von 20 Teilen Natriumbicar- bonat,
zum Zwischenprodukt vereinigt. Ist die Kupplung beendet, so wird alsdann eine wäs serige Lösung von 22,4 Teilen 1-Oxy-naphtha- lin-4-sulfonsäure, 20 Teilen Soda und 150 Tei len Pyridin hinzufliessen gelassen. Nach mehr stündigem Rühren ist die Kupplung beendet, und der gebildete Disazofarbstoff der Formel
EMI0001.0037
wird mit Kochsalz abgeschieden, isoliert, und getrocknet.
<B> Additional patent </B> to main patent no. 261125. Process for the production of a copperable polyazo dye. The present patent relates to a process for the preparation of a copperable polyazo dye. The process is characterized in that 1 mol of the tetrazo compound of 1- (3'-amino-4'-oxi- benzoylamino) -4-aminobenzene-3-carboxylic acid is mixed with 1 mol 1- (4'- Aminophenyl)
-3- methyl-5-pyrazolone and on the other hand with 1 mole of 1-oxy-naphthalene-4-sulfonic acid. The new disazo dye obtained is a dark brown powder that dissolves in water with dirty olive brown and in conc. Sulfuric acid dissolves with a red color and stains cellulose fibers in brown tones, which show excellent fastness properties after treatment with copper salts.
<I> Example: </I> 28.7 parts of 1- (3'-amino-4'-oxy-benzoyl-amino) -4-amino-benzene-3-carboxylic acid are cold in 400 parts of water with 8 parts of sodium hydroxide solution dissolved, mixed ver with 13.8 parts of sodium nitrite and concentrated in the cold with stirring to 40 parts. Hydrochloric acid and 80 parts of water are added dropwise, the excess mineral acid is blunted with sodium carbonate and then mixed with 18.9 parts of 1- (4'-aminophenyl) -3-methyl-5-pyrazolone, dissolved in 200 parts of water in the presence of 20 parts of sodium bicarbonate,
combined to form the intermediate. When the coupling is complete, an aqueous solution of 22.4 parts of 1-oxynaphthalin-4-sulfonic acid, 20 parts of soda and 150 parts of pyridine is then allowed to flow in. After a few hours of stirring, the coupling is complete and the disazo dye of the formula is formed
EMI0001.0037
is deposited with common salt, isolated and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH261125T | 1948-08-06 | ||
CH293861T | 1948-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH293861A true CH293861A (en) | 1953-10-15 |
Family
ID=25730375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH293861D CH293861A (en) | 1948-08-06 | 1948-08-06 | Process for the preparation of a copper-compatible polyazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH293861A (en) |
-
1948
- 1948-08-06 CH CH293861D patent/CH293861A/en unknown
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