CH306545A - 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
- CH306545A CH306545A CH306545DA CH306545A CH 306545 A CH306545 A CH 306545A CH 306545D A CH306545D A CH 306545DA CH 306545 A CH306545 A CH 306545A
- Authority
- CH
- Switzerland
- Prior art keywords
- cobalt
- azo dye
- containing azo
- preparation
- metal
- 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- lialt.igen Azofarbstoffes, welches darin be steht,
dass man 1 Mol diazotiertes 1-Oxy-2- aniino-4-nitro-6-chlorbenzol mit 1 Mol 1-Oxy- '? - aeetylamino - 4 - methylbenzol kuppelt und die erhaltene Monoazoverbindung mit einem kobaltabgebenden Mittel behandelt.
Im nachfolgenden Beispiel bedeuten die Teile Gewichtsteile.
<I>Beispiel:</I> 4- Teile der dareh Kuppeln von diazotier- t.em 1. - Oxy-2-amino-4-nitro - 6 - ehlorbenzol mit 1.-Oxy -2-aeetylamino-4-methylbenzol erhält- lielien Monoazoverbindung werden bei 70 in 200 Teilen Wasser unter Zugabe von N atrium- hydroxy d gelöst.
Man setzt der Lösung ein Gemiseh aus 37 Teilen kristallisiertem Ko- baltosulfat, 0,76 Teilen Weinsäure, 4,7 Teilen 30o/oiger Natriumhydroxydlösung und <B>1.5</B> Teilen Wasser zii und rührt das Ganze bei 70 so lange, bis die Metallisierung beendet, ist. Die kolloidale Suspension der Kobaltkomplex- verbindung wird mit Natriumchlorid versetzt.
Man filtriert den vollständig ausgesehiedenen Monoazofarbstoff bei 20 ab. Der feuchte R.üekstand wird anschliessend 24 Stunden lang in verdünnter Natriumhydroxycilösun-#@H Wert =10,5) digeriert, hierauf abfiltriert und im Vakuum bei 70 getroeknet.
Der neue kobalthaltige Azofarbstoff ist ein in Wasser mit brauner Farbe lösliches schwarzes Pulver, welehes olle, Seide und synthetisehe Poly amidfasern aus neutralem Bad in walk-, wasch- und lichteehten braunen Tönen färbt.
Process for the preparation of a metal-containing azo dye. The subject of the present patent is a process for the production of a metallic lialt.igen azo dye, which is
that 1 mole of diazotized 1-oxy-2-aniino-4-nitro-6-chlorobenzene with 1 mole of 1-oxy- '? - aeetylamino - 4 - methylbenzene couples and the monoazo compound obtained is treated with a cobalt donor.
In the following example, the parts are parts by weight.
<I> Example: </I> 4- parts of the diazotized domes of 1. - Oxy-2-amino-4-nitro-6-chlorobenzene with 1.-Oxy -2-aetylamino-4-methylbenzene The monoazo compounds available are dissolved at 70 in 200 parts of water with the addition of sodium hydroxide.
A mixture of 37 parts of crystallized cobalt sulfate, 0.76 parts of tartaric acid, 4.7 parts of 30% sodium hydroxide solution and 1.5 parts of water is added to the solution and the whole is stirred at 70 until the metallization is finished. Sodium chloride is added to the colloidal suspension of the cobalt complex compound.
The completely precipitated monoazo dye is filtered off at 20. The moist residue is then digested for 24 hours in dilute sodium hydroxide solution - # @ H value = 10.5), then filtered off and dried in vacuo at 70.
The new cobalt-containing azo dye is a black powder that is soluble in water with a brown color, which dyes olle, silk and synthetic polyamide fibers from a neutral bath in milled, washable and light brown tones.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH306545T | 1952-03-26 | ||
CH303283T | 1952-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH306545A true CH306545A (en) | 1955-04-15 |
Family
ID=25734632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH306545D CH306545A (en) | 1952-03-26 | 1952-03-26 | Process for the preparation of a metal-containing azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH306545A (en) |
-
1952
- 1952-03-26 CH CH306545D patent/CH306545A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH306545A (en) | Process for the preparation of a metal-containing azo dye. | |
DE921767C (en) | Process for the production of new cobalt-containing azo dyes | |
CH306544A (en) | Process for the preparation of a metal-containing azo dye. | |
CH306543A (en) | Process for the preparation of a metal-containing azo dye. | |
CH265107A (en) | Process for the production of a chromable dye. | |
CH200370A (en) | Process for the preparation of a chromable o-oxydisazo dye. | |
CH215831A (en) | Process for the preparation of an azo dye. | |
CH306250A (en) | Process for the preparation of a metal-containing azo dye. | |
CH306546A (en) | Process for the preparation of a metal-containing azo dye. | |
CH306542A (en) | Process for the preparation of a metal-containing azo dye. | |
CH309182A (en) | Process for the preparation of a cobalt-containing monoazo dye. | |
CH302016A (en) | Process for the preparation of a vinyl sulfone dye. | |
CH302020A (en) | Process for the preparation of an azo dye. | |
CH307211A (en) | Process for the preparation of an azo dye. | |
CH311054A (en) | Process for the preparation of a cobalt-containing monoazo dye. | |
CH249786A (en) | Process for the preparation of a substantive azo dye. | |
CH303912A (en) | Process for the preparation of a disazo dye. | |
CH311479A (en) | Process for the preparation of a metallizable monoazo dye. | |
CH321750A (en) | Process for the production of a cobalt-containing azo dye | |
CH287092A (en) | Process for the preparation of a chromium-containing azo dye. | |
CH292294A (en) | Process for the preparation of a copper-containing disazo dye. | |
CH311041A (en) | Process for the preparation of a yellow monoazo dye. | |
CH268843A (en) | Process for the production of a new dye. | |
CH313907A (en) | Process for the production of a metallizable polyazo dye | |
CH308764A (en) | Process for the preparation of a metal-containing azo dye. |