CH157527A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH157527A CH157527A CH157527DA CH157527A CH 157527 A CH157527 A CH 157527A CH 157527D A CH157527D A CH 157527DA CH 157527 A CH157527 A CH 157527A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- red
- production
- 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)
- Optical Filters (AREA)
Description
Zusatzpatent zum Hauptpatent Nr.<B>153486.</B> Verfahren zur Herstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass man einen neuen Azofarbstoff erhält, wenn man dianotierte 2-Amino-l-phenol-4,6-disulfosäure mit 5,6- Benzo-2,4-dioxychiriolin kuppelt und den er haltenen Farbstoff mit einem chromabgeben den Mittel behandelt.
Der erhaltene Farbstoff ist ein rotbraun gefärbtes Pulver, das sich in Wasser, in 10 "/oiger Natronlauge oder in 10 "/oiger Soda lösung mit roter und in konzentrierter Schwe felsäure mit blauroter Farbe löst. Der Farb stoff färbt Wolle aus schwefelsaurem Bade in egalen bordeauxroten Tönen, die gut walk und lichtecht sind.
<I>Beispiel:</I> Eine aus 269 Teilen 2-Atnino-l-phenol- 4,6-disulfosäure in bekannter Weise herge stellte Diazolösung lässt man unter Rühren zu einem mit Eis auf 10 " abgekühlten Ge misch von 1000 Teilen Wasser, 220 Teilen 5,6-Benzo-2,4-dioxychinolin, 80 Teilen Ätz- natron und 120 Teilen Soda zufliessen.
Der Farbstoff wird nach beendeter Kupplung mit Kochsalz abgeschieden und abfiltriert. Der erhaltene Farbstoff wird hierauf mit 7500 Teilen Wasser angerührt und mit einer Chromsulfatlösung versetzt, die hergestellt wurde aus 88 Teilen Chromoxyd, 170 Teilen konzentrierter Schwefelsäure und 600 Teilen Wasser. Das Gemisch wird 18-20 Stunden unter Rückfuss zum Sieden erhitzt und hier auf die Chromverbindung des Farbstoffes mit Kochsalz abgeschieden, abfiltriert und ge trocknet.
Additional patent to main patent no. <B> 153486. </B> Process for the production of a new azo dye. It has been found that a new azo dye is obtained if dianotated 2-amino-1-phenol-4,6-disulfonic acid is coupled with 5,6-benzo-2,4-dioxychirioline and the dye obtained is coupled with a chromium donating agent treated.
The dye obtained is a red-brown colored powder which dissolves in water, in 10 "/ o strength sodium hydroxide solution or in 10" / o strength soda solution with red and in concentrated sulfuric acid with a blue-red color. The dye dyes wool from sulfuric acid baths in level burgundy shades that are easy to walk and lightfast.
<I> Example: </I> A diazo solution prepared in a known manner from 269 parts of 2-atnino-1-phenol-4,6-disulfonic acid is allowed to add 1000 parts of water to a mixture of 1000 parts of water cooled with ice to 10 ", while stirring , 220 parts of 5,6-benzo-2,4-dioxyquinoline, 80 parts of caustic soda and 120 parts of soda flow.
After coupling has ended, the dye is deposited with sodium chloride and filtered off. The dye obtained is then mixed with 7500 parts of water and treated with a chromium sulfate solution which has been 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 |
---|---|---|---|
CH157527T | 1930-12-16 | ||
CH153486T | 1930-12-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH157527A true CH157527A (en) | 1932-09-30 |
Family
ID=25716206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH157527D CH157527A (en) | 1930-12-16 | 1930-12-16 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH157527A (en) |
-
1930
- 1930-12-16 CH CH157527D patent/CH157527A/en unknown
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