CH133109A - Process for the preparation of a metal-containing azo dye. - Google Patents
Process for the preparation of a metal-containing azo dye.Info
- Publication number
- CH133109A CH133109A CH133109DA CH133109A CH 133109 A CH133109 A CH 133109A CH 133109D A CH133109D A CH 133109DA CH 133109 A CH133109 A CH 133109A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- violet
- cobalt
- metal
- parts
- 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
- C09B45/20—Monoazo compounds containing cobalt
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 131099. Verfahren zur Herstellung eines metallhaltigen Azofarustoffes. Es wurde gefunden, dass man einen neuen wertvollen, metallhaltigen Azofarbstoff er hält, wenn man den Farbstoff .aus diazo- tierter 2-Amino-l-oxynaphthalin-4,8-idisulfo- säure und ,ss-Naphthol mit den Produkten, welche aus Kobaltsalzen und Glyzerin in Gegenwart von Xtzalkalien entstehen, be handelt.
Der kohalthaltige Farbstoff stellt ge trocknet ein .schwach bronzierendes, braun violettes Pulver dar, welches in Wasser mit violetter Farbe, in 1(1 %iger Natronlauge ohne Farbänderung und in konzentrierter Schwefelsäure blauviolett löslich ist. Im essigsauren Färbebad werden Wolle und Seide in rotvioletten Tönen von guten Echt heiten angef ärbt.
Beispiel: 13 Teile Kobaltchlorür werden in 200 Teilen Wasser gelöst und mit 10 Teilen Glyzerin versetzt, alsdann eine Lösung von 15 Teilen Ätzkali in 15 Teilen Wasser und dann 55 Teile einer 43 %igen Farbstoffpaste (= '/2o Mol.) des Farbstoffes aus diazotier- ter 2-Amino-l-oxynaphthalin-4,@8-disulfo- säure und :ss-Naphthol zugefügt.
Nach sechs stündigem Kochen am Rückflusskühler wird noch eine Lösung von 25 Teilen Ätzkali in 25 Teilen Wasser zugegeben und weitere 15 Stunden gekocht. Dann wird auf 500 Teile verdünnt, filtriert, mit Essigsäure neutral gestellt und aasgesalzen. Die Kobaltverbin- ,dung (des Farbstoffes scheidet sich kristalli nisch aus.
Additional patent to main patent no. 131099. Process for the production of a metal-containing azo-fragrant substance. It has been found that a new, valuable, metal-containing azo dye is obtained if the dye is made from diazotized 2-amino-1-oxynaphthalene-4,8-idisulphonic acid and β-naphthol with the products from Cobalt salts and glycerine are formed in the presence of Xtzalkalien.
When dried, the carbon-containing dye is a weakly bronzing, brown-violet powder, which is blue-violet in water with a violet color, in 1% sodium hydroxide solution and in concentrated sulfuric acid. In the acetic acid dye bath, wool and silk turn red-violet tones stained by good authenticity.
Example: 13 parts of cobalt chloride are dissolved in 200 parts of water and 10 parts of glycerine are added, then a solution of 15 parts of caustic potash in 15 parts of water and then 55 parts of a 43% dye paste (= 1/2 mol.) Of the diazotized dye - ter 2-amino-1-oxynaphthalene-4, @ 8-disulfonic acid and: ß-naphthol added.
After boiling for six hours on the reflux condenser, a solution of 25 parts of caustic potash in 25 parts of water is added and the mixture is boiled for a further 15 hours. Then it is diluted to 500 parts, filtered, neutralized with acetic acid and carrion salted. The cobalt compound (of the dye separates out crystalline.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH133109T | 1927-09-24 | ||
CH131099T | 1927-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH133109A true CH133109A (en) | 1929-05-15 |
Family
ID=25711560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH133109D CH133109A (en) | 1927-09-24 | 1927-09-24 | Process for the preparation of a metal-containing azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH133109A (en) |
-
1927
- 1927-09-24 CH CH133109D patent/CH133109A/en unknown
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