CH306544A - 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
- CH306544A CH306544A CH306544DA CH306544A CH 306544 A CH306544 A CH 306544A CH 306544D A CH306544D A CH 306544DA CH 306544 A CH306544 A CH 306544A
- Authority
- CH
- Switzerland
- Prior art keywords
- cobalt
- azo dye
- containing azo
- metal
- oxy
- 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
-
- 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
Verfahren zur Herstellung eines metallhaltigen Azofarbstoffes. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines metall haltigen Azofarbstoffes, welches darin besteht, dass man 1 Mol diazotiertes 1-Oxy-2-amino- -1-nit.robenzol mit 1 Mol l-Oxy-2-a.cetylamino- 4-methy-lbenzol kuppelt und die erhaltene Monoazoverbindung mit. einem kobaltabgeben- den Mittel behandelt.
Im nachfolgenden Beispiel bedeuten die Teile Gewichtsteile. <I>Beispiel:</I> 20 Teile der durch Kuppeln von diazotier- tem 1-Oxy-2-amino-4-nitrobenzol mit 1-Oxy-2- acetylamino-4-methylbenzol erhältlichen Mono ; azoverbindung werden in 400 Teilen Wasser suspendiert. Man erhitzt die Suspension auf 75-80 , setzt der gebildeten Lösung 17 Teile kristallisiertes Natriumacetat und 17 Teile kristallisiertes Kobaltosulfat zu und erhitzt. sie 8 Stunden lang auf 85-90 .
Man fällt hierauf die Kobaltkomplexverbindung mit Nat.rium- chloricl aus, filtriert sie ab und wäscht sie mit l0%4,#-er Natriumehloridlösung. Der neue kobalthaltige Azofarbstoff löst sich in Wasser mit rotbrauner Farbe und färbt 25 Wolle, Seide und synthetische Polyamid fasern aus neutralem Bad in licht- und walk- echten rotstickig braunen Tönen.
Process for the preparation of a metal-containing azo dye. The subject of the present patent is a process for the preparation of a metal-containing azo dye, which consists in mixing 1 mol of diazotized 1-oxy-2-amino- -1-nit.robenzene with 1 mol of l-oxy-2-a.cetylamino- 4-methylbenzene couples and the resulting monoazo compound with. treated with a cobalt-releasing agent.
In the following example, the parts are parts by weight. <I> Example: </I> 20 parts of the mono obtainable by coupling diazotized 1-oxy-2-amino-4-nitrobenzene with 1-oxy-2-acetylamino-4-methylbenzene; azo compound are suspended in 400 parts of water. The suspension is heated to 75-80, 17 parts of crystallized sodium acetate and 17 parts of crystallized cobalt sulfate are added to the solution formed and the mixture is heated. them to 85-90 for 8 hours.
The cobalt complex compound is then precipitated with sodium chloride, filtered off and washed with 10% 4% sodium chloride solution. The new cobalt-containing azo dye dissolves in water with a reddish-brown color and dyes wool, silk and synthetic polyamide fibers from a neutral bath in light and milled red-embroidered brown tones.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH306544T | 1952-03-26 | ||
CH303283T | 1952-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH306544A true CH306544A (en) | 1955-04-15 |
Family
ID=25734631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH306544D CH306544A (en) | 1952-03-26 | 1952-03-26 | Process for the preparation of a metal-containing azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH306544A (en) |
-
1952
- 1952-03-26 CH CH306544D patent/CH306544A/en unknown
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