CH307174A - Process for the production of a copperable azo dye. - Google Patents
Process for the production of a copperable azo dye.Info
- Publication number
- CH307174A CH307174A CH307174DA CH307174A CH 307174 A CH307174 A CH 307174A CH 307174D A CH307174D A CH 307174DA CH 307174 A CH307174 A CH 307174A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- copperable
- composition
- copper
- production
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
-
- 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
- C09B45/28—Disazo or polyazo compounds containing copper
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 290294. Verfahren zur Herstellung eines kupferbaren Azofarbstoffes. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines kupfer baren Azofarbstoffes, welches darin besteht, dass man 1 Mol der Aminomonoazoverbindung der Zusammensetzung
EMI0001.0007
und 1 --Hol der Aminomonoazoverbindung der Zusammensetzung
EMI0001.0009
vorteilhaft in wässerigem Medium und in Gegenwart eines säurebindenden Mittels,
mit 1 Mol eines Fumarsäuredihalogenids umsetzt.
Im naehfolgenden Beispiel bedeuten die Teile Clewichtsteile.
Beispiel: 31,6 Teile der Aminomonoazoverbindung der Zusammensetzung (I) und 25,8 Teile der Aminomonoazoverbindung der Zusammenset zung (II) werden zusammen in 2000 Teilen Wasser mit Hilfe der dazu notwendigen Menge Lithittmcarbonat, neutral gelöst.
Man versetzt die Farbstofflösung nach Zugabe von 30 Tei len kristallisiertem Natriumacetat bei 8-12 unter gutem Rühren innerhalb von 5 bis 6 Stunden mit so viel einer Mischung aus 30 Teilen Pumarsäurediehlorid und 70 Teilen Chlorbenzol, bis sich in der Reaktionslösung keine freien Aminogruppen mehr nachweisen lassen. Hierauf erwärmt man das Gemisch auf 90 , isoliert den gebildeten Disazofarbstoff auf bekannte Weise, trocknet ihn und mahlt ihn.
Der neue kupferbare Azofarbstoff ist ein dunkles Pulver, welches sich in Wasser und in konzentrierter Schwefelsäure mit roter Farbe löst. Seine Ausfärbungen auf Baumwolle und auf Fasern aus regenerierter Cellulose, die mit kupferabgebenden Mitteln behandelt werden, sind braun -und besitzen ausgezeichnete Echt- heitseigenschaften.
<B> Additional patent </B> to main patent no. 290294. Process for the production of a copper-compatible azo dye. The present patent relates to a process for the preparation of a copper-ble azo dye, which consists in adding 1 mole of the aminomonoazo compound of the composition
EMI0001.0007
and 1 - hol of the amino monoazo compound of the composition
EMI0001.0009
advantageously in an aqueous medium and in the presence of an acid-binding agent,
with 1 mol of a fumaric acid dihalide.
In the example below, the parts mean key parts.
Example: 31.6 parts of the aminomonoazo compound of the composition (I) and 25.8 parts of the aminomonoazo compound of the composition (II) are dissolved together in 2000 parts of water using the necessary amount of lithium carbonate.
After adding 30 parts of crystallized sodium acetate at 8-12 with thorough stirring within 5 to 6 hours, the dye solution is mixed with enough of a mixture of 30 parts of pumaric acid dichloride and 70 parts of chlorobenzene until no free amino groups can be detected in the reaction solution . The mixture is then heated to 90 °, the disazo dye formed is isolated in a known manner, dried and ground.
The new copperable azo dye is a dark powder, which dissolves in water and in concentrated sulfuric acid with a red color. Its coloring on cotton and on fibers made of regenerated cellulose, which are treated with copper releasing agents, are brown and have excellent fastness properties.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH307174T | 1952-06-16 | ||
| CH290294T | 1952-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH307174A true CH307174A (en) | 1955-05-15 |
Family
ID=25732947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH307174D CH307174A (en) | 1952-06-16 | 1952-06-16 | Process for the production of a copperable azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH307174A (en) |
-
1952
- 1952-06-16 CH CH307174D patent/CH307174A/en unknown
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