CH137649A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH137649A CH137649A CH137649DA CH137649A CH 137649 A CH137649 A CH 137649A CH 137649D A CH137649D A CH 137649DA CH 137649 A CH137649 A CH 137649A
- Authority
- CH
- Switzerland
- Prior art keywords
- copper
- brown
- acid
- amino
- mol
- 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
- C09B43/14—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with phosgene or thiophosgene
-
- 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
Zusatzpatent zum Hauptpatent Nr. <B>135748.</B> Verfahren zur Herstellung eines Azofarbstoffes. Es wurde gefunden. dass man einen neuen metallhaltigen Azofaxbstoff erhält" wenn man 2 Mol. 2-Amino-5-oxynaplithalin-7-sulfosäure, -' Mol. diazotierte 4-Chlor-l-a.mino-2-benzol- carbonsäure,
<B>1</B> Mol. Pliosgen und kupfer abgebende Mittel aufeinander einwirken lässt und diese verschiedenen Operationen derart vornimmt, dass die Behandlung mit den kup- f erabgebenden Mitteln nicht vor der Kupp lungsreaktion und die Behandlung mit Phos- (-)-en nicht gleichzeitig mit einer andern Ope ration durchgeführt -wird.
Der neue Fa#Astoff bildet ein dunkel rotbraunes Pulver, löst sich in Wasser mit braunroter Farbe und erzeugt auf Baum wolle oder Kunstseiden, wie Viskose- oder Kupferoxydammoniakseide, rotbraune Töne von vorzüglieher LialifeeItheit.
<I>Beispiel:</I> Man stellt in bekannter Weise den Harn stoff aus 2 Mol. 2-Amino-5-oxynaphthalin- 7-sulfosä#urp und <B>1</B> Mol. Phosgen dar. <B>172</B> Teile 4-Chlor-l-a-mino-2-benzolearbon- säure werden in üblicher Weise dia.zotiert. Hierauf wird die auf<B>5 '</B> abgekühltem Lö sung zu 252 Teilen des obigen Harnstoffes, gelöst in<B>2500</B> Teilen Wasser und 2.50 Tei len Natriumcarbonat, zugegeben.
Der Farb stoff wird nun direkt oder nach erfolgter Isolierung in das Kupfersalz übergeführt. Man wärmt zum Beispiel die Kombination auf<B>70'</B> auf, säuert mit verdünnter Schwe felsäure an" gibt<B>300</B> Teile kristallisiertes Kupfersulfat, gelöst in der fünffachen Menge Wasser, zu und lässt bei<B>80</B> bis<B>90 0</B> während zwei bis drei Stunden rühren. Die ausgeschiedene Kupferverbindung wird mit verdünnter Ammoniak- resp. mit verdünnter Natriumearbonatlösung in das Ammonsalz resw. Natronsalz übergeführt und wie üblich isoliert.
Zum gleichen Produkt gelangt man, wenn man zunächst die diazatierte 4-Chlor-l- amino-2-benzole,arbonsäure mit der 2-Amino- 5-oxyna-phtha.Iin-7.sulfosäure vereinigt und hierauf 2 Mol. des gebildeten Azofarbstoffes mittelst Pliosgen vereinigt und die Kupfe. rung gleichzeitig mit der Kupplung oder vor oder nach der Behandlung mit Phosgen vor nimmt.
Additional patent to main patent no. <B> 135748. </B> Process for the production of an azo dye. It was found. that you get a new metal-containing azo-fiber "if you get 2 moles of 2-amino-5-oxynaplithalin-7-sulfonic acid, - 'moles of diazotized 4-chloro-1-a.mino-2-benzene carboxylic acid,
<B> 1 </B> Mol. Pliosgen and copper-releasing agents can act on one another and these various operations are carried out in such a way that the treatment with the copper-releasing agents does not occur before the coupling reaction and the treatment with Phos- (-) - en is not performed at the same time as another operation.
The new fabric forms a dark red-brown powder, dissolves in water with a brown-red color and produces red-brown tones of excellent lifelike quality on cotton or artificial silk, such as viscose or copper oxide ammonia silk.
<I> Example: </I> The urea is prepared in a known manner from 2 mol. 2-amino-5-oxynaphthalene-7-sulfonic acid and <B> 1 </B> mol. Phosgene. <B. 172 parts of 4-chloro-la-mino-2-benzene carbonic acid are dia.zotiert in the usual way. The solution, cooled to <B> 5 '</B>, is then added to 252 parts of the above urea, dissolved in <B> 2500 </B> parts of water and 2.50 parts of sodium carbonate.
The dye is now converted into the copper salt directly or after isolation. For example, the combination is warmed up to <B> 70 '</B>, acidified with dilute sulfuric acid, "gives <B> 300 </B> parts of crystallized copper sulfate, dissolved in five times the amount of water, and allows <B> B> 80 </B> to <B> 90 0 </B> for two to three hours.The precipitated copper compound is converted into the ammonium salt or sodium salt with dilute ammonia or with dilute sodium carbonate solution and isolated as usual.
The same product is obtained if the diazatized 4-chloro-1-amino-2-benzenesarboxylic acid is first combined with the 2-amino-5-oxyna-phthalene-7sulfonic acid and then 2 moles of the azo dye formed united by means of Pliosgen and the copper. tion takes place simultaneously with the coupling or before or after the treatment with phosgene.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH135748T | 1928-07-14 | ||
CH137649T | 1928-07-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH137649A true CH137649A (en) | 1930-01-15 |
Family
ID=25712557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH137649D CH137649A (en) | 1928-07-14 | 1928-07-14 | Process for the preparation of an azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH137649A (en) |
-
1928
- 1928-07-14 CH CH137649D patent/CH137649A/en unknown
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