CH228373A - Process for the preparation of a substantive copper-containing disazo dye. - Google Patents
Process for the preparation of a substantive copper-containing disazo dye.Info
- Publication number
- CH228373A CH228373A CH228373DA CH228373A CH 228373 A CH228373 A CH 228373A CH 228373D A CH228373D A CH 228373DA CH 228373 A CH228373 A CH 228373A
- Authority
- CH
- Switzerland
- Prior art keywords
- copper
- dye
- preparation
- disazo dye
- substantive
- 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
- C09B43/16—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents linking amino-azo or cyanuric acid residues
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Darstellung eines substantiven kupferhaltigen Disazofarbstoifes. Gegenstand des vorliegenden Zusatz patentes ist ein Verfahren zur Darstellung eines Substantiven kupferhaltigen Disazofarb- stoffes, dadurch gekennzeichnet, dass man je 1 Mol diazotierter 2-Aminobenzoesäure und 0- Chlor. 2 - amno-1-.oxybenzol -4- sulf o:
nsäure mit einem Mol eines Kondensationsproduktes aus 2 Mol 2-Amino-5-oxynaphthalin-7-sulfon- säure, 1 Mal Anilin und 1 Mal Cyanur- chlorid kuppelt und den erhaltenen Disazo- farbstoff mit kupferabgebenden Mitteln be handelt.
<I>Beispiel:</I> 137 Teile 2-Aminobenzoesäure werden in üblicher Weise diazotiert und zu einer Lö sung von 646 Teilern des, tertiären Kondensa- tionspro,duktes aus 2 Mol 2-Amino-5-ogy- naphthalin-7-sulfonsäure, 1 Mal Anilin und 1 Mol Cyanurchl.orid in 7000 Teilen Wasser und 200 Teilen Soda gegeben.
Nach been digter Kupplung wird der Farbstoff mit Kochsalz ausgefällt, filtriert und mit 10 000 Teilen Wasser und 200 Teilen Soda wieder angesehlämmt. Es werden nun bei 5 223,5 Teile,diazotierte 6-Chlo,r-2-amino-l-.oxy- benzol-4-sulfonsäure zufliessen gelassen und nach beendigter Kupplung der Disazofarb- stoff mit Kochsalz ausgefällt und filtriert.
Der feuchte Filterkuchen wird in 20 000 Teilen Wasser bei 80 gelöst und mit einer- Lösung von 500 Teilen krist. Kupfersulfat in 2000 Teilen Wasser und 1000 Teilen 25 %igem Ammoniak versetzt. Es wird 3-4 Stunden bei 80-90 gerührt, mit Kochsalz ausgefällt und filtriert.
Der Farbstoff stellt ein schwärzlich violettes Pulver dar, das sich in Wasser mit roter Farbe löst und Zellul.osefasern in sehr lichtechten blaustichigen Rottönen färbt.
Die Kupferung kann auch nach dem im Hauptpatent erwähnten Verfahren vorgenom men werden, ebenso ist eine Isolierung des Mono- und des Disazofarbstoffes nicht unbe dingt erforderlich, hat aber den Vorteil, dass dadurch etwas reinere Produkte erhalten werden.
Method for the production of a substantive copper-containing disazo dye. The subject of the present additional patent is a method for the representation of a noun copper-containing disazo dye, characterized in that one mole of diazotized 2-aminobenzoic acid and 0-chlorine. 2 - amno-1-.oxybenzene -4- sulfo:
acid is coupled with one mole of a condensation product of 2 moles of 2-amino-5-oxynaphthalene-7-sulfonic acid, once aniline and once cyanuric chloride and the disazo dye obtained is treated with copper-donating agents.
<I> Example: </I> 137 parts of 2-aminobenzoic acid are diazotized in the usual way and converted into a solution of 646 parts of the tertiary condensation product from 2 moles of 2-amino-5-ogynaphthalene-7- sulfonic acid, 1 time aniline and 1 mol cyanuric chloride in 7000 parts of water and 200 parts of soda.
After coupling is complete, the dye is precipitated with sodium chloride, filtered and washed up again with 10,000 parts of water and 200 parts of soda. Diazotized 6-chloro, r-2-amino-1-oxybenzene-4-sulfonic acid are now allowed to flow in at 5,223.5 parts and, after the coupling is complete, the disazo dye is precipitated with sodium chloride and filtered.
The moist filter cake is dissolved in 20,000 parts of water at 80 and a solution of 500 parts of crystalline. Copper sulfate in 2000 parts of water and 1000 parts of 25% ammonia are added. It is stirred for 3-4 hours at 80-90, precipitated with common salt and filtered.
The dye is a blackish violet powder that dissolves in water with a red color and dyes cellulose fibers in very lightfast bluish red tones.
The copper plating can also be carried out according to the process mentioned in the main patent, and isolation of the mono and disazo dyes is not absolutely necessary, but has the advantage that somewhat purer products are obtained.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH228373T | 1941-09-19 | ||
CH223777T | 1941-09-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH228373A true CH228373A (en) | 1943-08-15 |
Family
ID=25726747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH228373D CH228373A (en) | 1941-09-19 | 1941-09-19 | Process for the preparation of a substantive copper-containing disazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH228373A (en) |
-
1941
- 1941-09-19 CH CH228373D patent/CH228373A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH228373A (en) | Process for the preparation of a substantive copper-containing disazo dye. | |
CH228372A (en) | Process for the preparation of a substantive copper-containing disazo dye. | |
CH228371A (en) | Process for the preparation of a substantive copper-containing disazo dye. | |
CH232825A (en) | Process for the preparation of an azo dye. | |
CH211004A (en) | Process for the preparation of an azo dye. | |
CH208538A (en) | Process for the preparation of an azo dye. | |
CH110110A (en) | Process for the preparation of an azo dye. | |
CH239330A (en) | Process for the preparation of a disazo dye. | |
CH211001A (en) | Process for the preparation of an azo dye. | |
CH227295A (en) | Process for the preparation of a dye of the stilbene series. | |
CH252280A (en) | Process for the preparation of an azo dye. | |
CH211007A (en) | Process for the preparation of an azo dye. | |
CH221188A (en) | Process for the preparation of a stilbene dye. | |
CH239324A (en) | Process for the preparation of a disazo dye. | |
CH249789A (en) | Process for the preparation of a substantive azo dye. | |
CH239331A (en) | Process for the preparation of a disazo dye. | |
CH275080A (en) | Process for the preparation of a stilbene dye. | |
CH239327A (en) | Process for the preparation of a disazo dye. | |
CH134102A (en) | Process for the preparation of an azo dye. | |
CH259325A (en) | Process for the preparation of an azo dye. | |
CH211002A (en) | Process for the preparation of an azo dye. | |
CH228827A (en) | Process for the preparation of a dye of the stilbene series. | |
CH199368A (en) | Process for the preparation of an azo dye. | |
CH202747A (en) | Process for the preparation of an azo dye. | |
CH221178A (en) | Process for the preparation of a stilbene dye. |