CH281647A - Process for the production of a chromable dye. - Google Patents
Process for the production of a chromable dye.Info
- Publication number
- CH281647A CH281647A CH281647DA CH281647A CH 281647 A CH281647 A CH 281647A CH 281647D A CH281647D A CH 281647DA CH 281647 A CH281647 A CH 281647A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- production
- chromable
- parts
- diazotized
- 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
-
- 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
- C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
- C09B62/44—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring
- C09B62/78—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring with other reactive groups
- C09B62/82—Azo dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines ehromierbaren Farbstoffes. Gegenstand vorliegenden Patentes ist ein Verfahren zur Herstellung eines chromier- baren Farbstoffes. Das Verfahren ist da durch gekennzeichnet, dass man diazotiertes 5-Nitro - 2 - amino -1- oxy -benzol-4-methylsulfon mit. 1-Phenyl-3-methyl-5-p.#-razolon vereinigt.
Der Chromkomplex des erhaltenen neuen Farbstoffes stellt ein rotbraunes Pulver dar, das Wolle aus neutralem oder organisch sau rem Bade in scharlachroten Tönen von sehr guter Licht-, Waseh- und Walkechtheit färbt. Beispiel:
Man diazotiert 23,2 Teile 5-Nitro-2-amino- 1-oxy-benzol-4-methzlsulfon und kuppelt nach Neutralisieren mit Natriumbicarbonat bei 0 bis 5 mit einer Lösung von 18,3 Teilen 1-Phe- ny1-3-methyl-5-py razolon und 20 Teilen was serfreien Soda in 200 Teilen Wasser und iso liert den erhaltenen Farbstoff nach Erwär men auf 60 durch Zugabe von Kochsalz.
Der Chromkomplex des Farbstoffes kann ei-lialteii werden, indem man 43,9 Teile seines llononatriumsalzes in 600 Teilen Wasser mit 110 Teilen einer Lösung von chromsalicylsau- rem Ammonium (entsprechend 4,2 Teilen Chromoxyd) unter Rückfluss einige Stunden zum Sieden erhitzt. Der ehromhaltige Farb stoff fällt. dabei weitgehend in kristallinei Form aus. Er wird nach Erkalten filtriert, getrocknet und zur Erhöhung der Löslichkeit mit 101/o des Gewichtes an wasserfreier Soda vermischt.
Process for the production of an honorable dye. The subject of the present patent is a process for the production of a chromable dye. The process is characterized in that diazotized 5-nitro-2-amino-1-oxy-benzene-4-methylsulfone is used. 1-Phenyl-3-methyl-5-p. # - razolone combined.
The chromium complex of the new dye obtained is a red-brown powder that dyes wool from a neutral or organically acidic bath in scarlet shades of very good fastness to light, washer and milled. Example:
23.2 parts of 5-nitro-2-amino-1-oxy-benzene-4-methzlsulfone are diazotized and, after neutralization with sodium bicarbonate at 0 to 5, the mixture is coupled with a solution of 18.3 parts of 1-pheny1-3-methyl -5-py razolon and 20 parts of water-free soda in 200 parts of water and iso liert the dye obtained after heating men to 60 by adding sodium chloride.
The chromium complex of the dye can be isolated by refluxing 43.9 parts of its ionosodium salt in 600 parts of water with 110 parts of a solution of chromium salicylic acid ammonium (corresponding to 4.2 parts of chromium oxide) and refluxing it for a few hours. The dye containing honor falls. largely in crystalline form. After cooling, it is filtered, dried and mixed with 101 / o of the weight of anhydrous soda to increase the solubility.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH281647T | 1950-03-16 | ||
CH261126T | 1952-07-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH281647A true CH281647A (en) | 1952-03-15 |
Family
ID=25730392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH281647D CH281647A (en) | 1950-03-16 | 1950-03-16 | Process for the production of a chromable dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH281647A (en) |
-
1950
- 1950-03-16 CH CH281647D patent/CH281647A/en unknown
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