CH157521A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH157521A CH157521A CH157521DA CH157521A CH 157521 A CH157521 A CH 157521A CH 157521D A CH157521D A CH 157521DA CH 157521 A CH157521 A CH 157521A
- Authority
- CH
- Switzerland
- Prior art keywords
- red
- dye
- parts
- azo dye
- new azo
- 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
- 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
- C09B45/14—Monoazo compounds
- C09B45/16—Monoazo compounds containing chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Paper (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 153486. Verfahren zur Herstellung eines neuen Azofarbstofes. Es wurde gefunden, dass man einen neuen Azofarbstoff erhält, wenn man diazotierte 2-Amino-l-phenol-4,6-disulfosäure mit 2,4-Di- oxychinolin kuppelt und den erhaltenen Farb stoff mit einem chromabgebenden Mittel be handelt.
Der erhaltene Farbstoff ist ein rotbraun gefärbtes Pulver, das sich in Wasser mit roter, in 10 "/oiger Natronlauge oder Soda lösung mit orangeroter und in konzentrierter Schwefelsäure mit orangegelber Farbe löst. Der Farbstoff färbt Wolle aus schwefelsaurem Bade sehr egal in lebhaft gelbstichigröten Tönen von guter Licht- und Walkechtheit an.
<I>Beispiel:</I> 269 Teile 2-Amino-l-phenol-4,6-disulfo- säure werden in 400 Teilen Wasser suspen diert und unter Eiskühlung mit 69 Teilen Natriumnitrit in üblicher Weise diazotiert. Die Diazolösung lässt man unter Rühren zu einem mit Eis auf 10 " abgekühlten Gemisch von 800 Teilen Wasser, 170 '.Geilen 2,4-Di- ogychinolin, 45 Teilen Ätznatron und 100 Teilen -kalzinierter Soda zufliessen.
Nach be endeter Kupplung wird der Farbstoff mit Kochsalz abgeschieden und abfiltriert. Die erhaltene Farbstoffpaste wird mit 7000 Teilen Wasser angerührt und mit einer Chromsulfat- lösung versetzt, die aus 88 Teilen Chrom oxyd, 170 Teilen konzentrierter Schwefel säure und 600 Teilen Wasser hergestellt wurde. Das Gemisch wird 18-20 Stunden unter Rückfluss zum Sieden erhitzt und hier auf die Chromverbindung des Farbstoffes mit Kochsalz abgeschieden, abfiltriert und ge trocknet.
<B> Additional patent </B> to the main patent no. 153486. Process for the production of a new azo dye. It has been found that a new azo dye is obtained if diazotized 2-amino-1-phenol-4,6-disulfonic acid is coupled with 2,4-dioxyquinoline and the dye obtained is treated with a chromium donating agent.
The dye obtained is a red-brown colored powder which dissolves in water with red, in 10% sodium hydroxide solution or soda solution with orange-red and in concentrated sulfuric acid with an orange-yellow color good light and milled fastness.
<I> Example: </I> 269 parts of 2-amino-1-phenol-4,6-disulfonic acid are suspended in 400 parts of water and diazotized with 69 parts of sodium nitrite in the customary manner while cooling with ice. The diazo solution is allowed to flow into a mixture, cooled with ice to 10 ", of 800 parts of water, 170 parts of 2,4-diogyquinoline, 45 parts of caustic soda and 100 parts of calcined soda.
After coupling has ended, the dye is deposited with sodium chloride and filtered off. The dye paste obtained is mixed with 7000 parts of water and mixed with a chromium sulfate solution which was prepared from 88 parts of chromium oxide, 170 parts of concentrated sulfuric acid and 600 parts of water. The mixture is heated to boiling under reflux for 18-20 hours and here deposited on the chromium compound of the dye with common salt, filtered off and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH157521T | 1930-12-16 | ||
CH153486T | 1930-12-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH157521A true CH157521A (en) | 1932-09-30 |
Family
ID=25716200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH157521D CH157521A (en) | 1930-12-16 | 1930-12-16 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH157521A (en) |
-
1930
- 1930-12-16 CH CH157521D patent/CH157521A/en unknown
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