CH308457A - Process for the preparation of a metallizable disazo dye. - Google Patents
Process for the preparation of a metallizable disazo dye.Info
- Publication number
- CH308457A CH308457A CH308457DA CH308457A CH 308457 A CH308457 A CH 308457A CH 308457D A CH308457D A CH 308457DA CH 308457 A CH308457 A CH 308457A
- Authority
- CH
- Switzerland
- Prior art keywords
- disazo dye
- amino
- acid
- dependent
- metallizable
- 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
- C09B45/28—Disazo or polyazo compounds containing copper
-
- 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
- C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
- C09B43/145—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with polycarboxylic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines metallisierbaren Disazofarbstoffes. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines metalli- sierbaren Disazofarbstoffes, welches darin be steht, dass man 2 Mol der durch Kuppeln von diazotiertem 2 - Amino -1- carboxybenzol- 5 -sul- fonsäureamid mit 1-(4'-Amino)
-phenyl-3-me- thyl-5-pyrazolon erhältlichen Aminomonoazo- verbindung mit 1 Mol eines Fumarsäuredi- halogenides umsetzt.
Im nachfolgenden Beispiel bedeuten die Teile Gewichtsteile, und die Prozente sind in Gewichtsprozenten angegeben.
<I>Beispiel:</I> 40,6 Teile :der durch Kuppeln von diazo- tiertem 2-Amino-1- earboxybenzol - 5- sulfon- säureamid mit 1-(4'-Amino)-phenyl-3-methyl- 5-pyra.zolon erhältlichen Aminomonoazover- bindung werden in ungefähr 3000 Teilen 0,4 o/oiger Natriumca.rbonatlösung gelöst.
In die Lösung lässt man unter gutem Rühren bei ungefähr 5 innerhalb von 4-5 Stunden so viel einer 20 o/oigen Lösung. von Fuma.rsäure- dichlorid in 1,2-Dichlorbenzol zutropfen, bis der Ausgangsfarbstoff vollständig,aeyliert ist. Hierauf wird der gebildete Disazofarbstoff bei erhöhter Temperatur durch Aassalzen ab geschieden, abfiltriert und getrocknet.
Der neue, metallisierbare Disazofarbstoff ist ein orangefarbenes Pulver, welches sich in konzentrierter Schwefelsäure und in Was ser mit. gelber Farbe löst und Baumwolle und Fasern aus regenerierter, Zellulose in reinen gelben Tönen färbt. Die Färbungen des neuen Disazofarbstoffes besitzen, besonders wenn sie mit kupferabgebenden Mitteln behandelt wer den, ausgezeichnete Licht- und Nassechtheits- eigenschaften.
Process for the preparation of a metallizable disazo dye. The subject of the present patent is a process for the preparation of a metallizable disazo dye, which consists in the fact that 2 moles of the 2-amino -1-carboxybenzene-5-sulfonic acid amide by coupling of diazotized 2-amino-5-sulfonic acid amide with 1- (4'-amino )
-phenyl-3-methyl-5-pyrazolone available aminomonoazo compound with 1 mol of a fumaric acid dihalide.
In the example below, parts are parts by weight and percentages are percentages by weight.
<I> Example: </I> 40.6 parts: the one obtained by coupling diazo- tated 2-amino-1-earboxybenzene - 5-sulfonic acid amide with 1- (4'-amino) -phenyl-3-methyl- 5-pyra.zolon available aminomonoazo compound are dissolved in approximately 3000 parts of 0.4% sodium carbonate solution.
So much of a 20% solution is allowed into the solution within 4-5 hours while stirring well at about 5. Add dropwise of Fuma.rsäure- dichloride in 1,2-dichlorobenzene until the starting dye is completely aeylated. The disazo dye formed is then separated off by carrion salts at an elevated temperature, filtered off and dried.
The new, metallizable disazo dye is an orange powder, which is in concentrated sulfuric acid and in water with. dissolves yellow color and dyes cotton and fibers from regenerated cellulose in pure yellow tones. The dyeings of the new disazo dye have excellent light and wet fastness properties, especially when treated with copper-releasing agents.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH308457T | 1952-04-30 | ||
CH304388T | 1956-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH308457A true CH308457A (en) | 1955-07-15 |
Family
ID=25734808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH308457D CH308457A (en) | 1952-04-30 | 1952-04-30 | Process for the preparation of a metallizable disazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH308457A (en) |
-
1952
- 1952-04-30 CH CH308457D patent/CH308457A/en unknown
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