CH137640A - Process for the production of a new metal-containing dye. - Google Patents
Process for the production of a new metal-containing dye.Info
- Publication number
- CH137640A CH137640A CH137640DA CH137640A CH 137640 A CH137640 A CH 137640A CH 137640D A CH137640D A CH 137640DA CH 137640 A CH137640 A CH 137640A
- Authority
- CH
- Switzerland
- Prior art keywords
- new metal
- dye
- containing dye
- production
- amino
- 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
- C09B45/24—Disazo or polyazo compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines neuen metallhaltigen Farbstoffes. Es wurde gefunden, dass man einen neuen, wertvollen metallhaltigen Azofarbstoff erhält, wenn man den Polyazofarbstoff aus 2 Mol diazotiertem 4-Chlor-2-amirio-l-phenol und 1 Mol 2,1'-Azorraphthalin-5,5'-dioxy_ 2'-amino- 7,7'-disulfosäure mit Chrom- und kupferab gebenden Mitteln behandelt.
Der neue metallhaltige Farbstoff ist trocken ein dunkles Pulver, das sich in Wasser, verdünnten Alkalien und in konzentrierter Schwefelsäure mit rötlichgrauer Farbe löst. Baumwolle und Viskose werden aus neutralem oder schwach alkalischem Glaubersalzbad in echten rötlichen Grautönen egal anfärbt.
Beispiel: 53,5 Teile Natronsalz des Farbstoffes aus einem Mol diazotierter 2-Amino-5-oxynaph- thalin-7-sulfosäure und einem Mol 2-Amino- 5-oxynaphthalin-7-sulfosäure (sauer gekuppelt) werden in 500-600 Teilen Wasser gelöst und nach Zugabe von 50 Teilen Soda bei 6-8 mit dem Diazokörper aus 28,7 Teilen 4-Chlor-2-aminophenol kombiniert.
Nach 15 Stunden wird der Azofarbstoff filtriert, in 3500 Teilen Wasser gelöst, mit 7,6 Teilen Cr20s in Form einer Fluorchromlösung 24 Stunden gekocht, darauf mit 30 Teilen kri stallisiertem Kupfersulfat versetzt, eine halbe Stunde weiter gekocht und alsdann der Farb stoff wie üblich isoliert.
Process for the production of a new metal-containing dye. It has been found that a new, valuable metal-containing azo dye is obtained if the polyazo dye is obtained from 2 moles of diazotized 4-chloro-2-amirio-1-phenol and 1 mole of 2,1'-azoraphthalene-5,5'-dioxy_ 2 '-amino- 7,7'-disulfonic acid treated with chromium and copper donating agents.
The new metal-containing dye is a dry, dark powder that dissolves in water, dilute alkalis and concentrated sulfuric acid with a reddish-gray color. Cotton and viscose are dyed in a neutral or slightly alkaline Glauber's salt bath in real reddish gray tones.
Example: 53.5 parts of the sodium salt of the dye from one mole of diazotized 2-amino-5-oxynaphthalene-7-sulfonic acid and one mole of 2-amino-5-oxynaphthalene-7-sulfonic acid (acid-coupled) are 500-600 parts Dissolved water and, after adding 50 parts of soda, combined at 6-8 with the diazo body composed of 28.7 parts of 4-chloro-2-aminophenol.
After 15 hours, the azo dye is filtered, dissolved in 3500 parts of water, boiled with 7.6 parts of Cr20s in the form of a fluorochrome solution for 24 hours, then treated with 30 parts of crystallized copper sulfate, boiled for another half an hour and then the dye is isolated as usual .
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH137640T | 1928-03-10 | ||
CH307705X | 1928-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH137640A true CH137640A (en) | 1930-01-15 |
Family
ID=25713023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH137640D CH137640A (en) | 1928-03-10 | 1928-03-10 | Process for the production of a new metal-containing dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH137640A (en) |
-
1928
- 1928-03-10 CH CH137640D patent/CH137640A/en unknown
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