CH304388A - Process for the preparation of a copper-containing disazo dye. - Google Patents
Process for the preparation of a copper-containing disazo dye.Info
- Publication number
- CH304388A CH304388A CH304388DA CH304388A CH 304388 A CH304388 A CH 304388A CH 304388D A CH304388D A CH 304388DA CH 304388 A CH304388 A CH 304388A
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- copper
- mol
- amino
- dependent
- 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
- 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 kupferhaltigen Disazofarbatoffes. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines kupfer haltigen Disazofarbstoffes, welches darin be steht, dass man 2 Mol der Kupferkomplex verbindung aus dem durch alkalische Kupp lung von 1 Mol diazotierter 1-Ämino-2-oxy- naphthalin-4-sulfonsäure mit 1 Mol 2=Amino- 5 - oxynaphthalin - 7 - sulfonsäure erhaltenen
Aminomonoazofarbstoff mit 1 Mol Fumar- sä-Liredihalogenid umsetzt.
Im nachfolgenden Beispiel bedeuten die Teile Gewichtsteile, und die Prozente sind in Gewichtsprozenten angegeben. <I>Beispiel:</I> 55,1 Teile der Kupferkomplexverbindung aus dem durch alkalische Kupplung von 23,9 Teilen diazotierter 1-Amino-2-oxynaph- thalin-4-stilfonsäure mit 23.,
9 Teilen 2-Amino- 5 - oxynaphthalin - 7 - sulfonsäure erhaltenen Aminomonoazofarbstoff werden in 2000 Tei len Wasser unter Zusatz von Natriumearbonat gelöst. Man versetzt die Lösung bei einer Temperatur von 10 bis 121,1 innerhalb von etwa 1 Stunde mit einer Lösung aus 8 Teilen Fu- marsäuredichlorid und 15 'Teilen trockenem Chlorbenzol. Die Reaktion der Kondensations lösung wird durch Zusatz von Natriumbi- earbonat stets neutral gehalten.
Man scheidet den entstandenen Disazofarbstoff in der Wärme mittels Zusatz von 100 Teilen Na- triumehlorid zur Kondensationslösung ab, filtriert ihn hierauf ab und trocknet ihn, Der neue kupferhaltige Disazofarbstoff ist ein dunkles Pulver, das sich in konzen trierter Schwefelsäure mit grüner Farbe löst und Baumwolle und Fasern aus regenerierter Zellulose in blauvioletten Tönen färbt.
Durch Nachbehandeln auf der Faser mit Kupfer salzen in Gegenwart eines Polyalkylenpoly- amins werden die Nassechtheitseigenschaften der Färbungen noch verbessert.
Process for the production of a copper-containing disazo carbate. The subject of the present patent is a process for the preparation of a copper-containing disazo dye which consists in that 2 moles of the copper complex compound from the 1-mole 1-amino-2-oxynaphthalene-4-sulfonic acid diazotized by alkaline coupling with 1 mole of 2 = amino 5 - oxynaphthalene - 7 - sulfonic acid obtained
Amino monoazo dye with 1 mol of fumaric acid liredihalide.
In the following example, parts are parts by weight and percentages are percentages by weight. <I> Example: </I> 55.1 parts of the copper complex compound from the 1-amino-2-oxynaphthalin-4-stilfonic acid diazotized by alkaline coupling of 23.9 parts with 23,
9 parts of 2-amino-5-oxynaphthalene-7-sulfonic acid obtained aminomonoazo dye are dissolved in 2000 parts of water with the addition of sodium carbonate. A solution of 8 parts of fumaric acid dichloride and 15 parts of dry chlorobenzene is added to the solution at a temperature of 10 to 121.1 within about 1 hour. The reaction of the condensation solution is always kept neutral by adding sodium bicarbonate.
The resulting disazo dye is separated off in the heat by adding 100 parts of sodium chloride to the condensation solution, then filtered off and dried. The new copper-containing disazo dye is a dark powder that dissolves in concentrated sulfuric acid with a green color and cotton and Dyes regenerated cellulose fibers in blue-violet tones.
Post-treating the fiber with copper salts in the presence of a polyalkylene polyamine further improves the wet fastness properties of the dyeings.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH304388T | 1956-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH304388A true CH304388A (en) | 1955-01-15 |
Family
ID=4492047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH304388D CH304388A (en) | 1956-05-03 | 1952-01-17 | Process for the preparation of a copper-containing disazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH304388A (en) |
-
1952
- 1952-01-17 CH CH304388D patent/CH304388A/en unknown
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