CH232496A - Process for the preparation of a metal-containing stilbene azo dye. - Google Patents

Process for the preparation of a metal-containing stilbene azo dye.

Info

Publication number
CH232496A
CH232496A CH232496DA CH232496A CH 232496 A CH232496 A CH 232496A CH 232496D A CH232496D A CH 232496DA CH 232496 A CH232496 A CH 232496A
Authority
CH
Switzerland
Prior art keywords
dye
metal
azo dye
preparation
parts
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH232496A publication Critical patent/CH232496A/en

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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
    • C09B56/00—Azo dyes containing other chromophoric systems
    • C09B56/04—Stilbene-azo dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr. 217234.    Verfahren zur Herstellung eines     metallhaltigen        Stilbenazofarbstoffes.       Gegenstand des vorliegenden Zusatzpaten  tes ist ein Verfahren zur Herstellung eines  metallhaltigen     Stilbenazofarbstoffes,    welches  dadurch gekennzeichnet ist, dass man den  Farbstoff     4-Chlor-2-amino-l-oxybenzol   <B>----></B>       m-Anisidin    und den Farbstoff     Sulfanilsäure          ->    Anilin mit     4,4'-Dinitrostilben-2,

  2'-di-          sulfonsäure    kondensiert und das Konden  sationsprodukt in die     Kupferkomplexverbin-          dung    überführt.  



  <I>Beispiel:</I>  28 Teile des Farbstoffes     4-Chlor-2-amino-l-          oxybenzol        ->    .     m-Anisidin    und 28 Teile  des Farbstoffes     Sulfanilsäure        #-    Anilin  werden 15 bis 18     Stunden    in der Siedehitze  mit 43 Teilen     4,4'-Dinitrostilben-2,2'-disul-          fonsäure    in 400 Teilen Wasser und 80 Teilen  Natronlauge     36         B6    kondensiert. Nach dem  Abkühlen wird bei ca. 30  mit Salzsäure neu  tralisiert, das Kondensationsprodukt vollends  mit Kochsalz ausgefällt und filtriert.  



  Die Kupferverbindung des Farbstoffes  wird zum Beispiel erhalten, indem man den       obigen    Farbstoff in 2000 Teilen Wasser und  15 Teilen Ammoniak 25 %     ig    löst, bei 80 bis  90  eine     Lösung    von 25 Teilen     krist.    Kupfer-         sulfat    in 100 Teilen ,Wasser und 50     Teilen     25%igem Ammoniak zufliessen lässt und 12       Stunden        auf    90 bis 95  erhitzt. Die metalli  sierte     Verbindung        wird    in üblicher Weise  durch     Aussalzen    isoliert und filtriert.  



  Die getrocknete     Kupferkomplexverbin-          dung    stellt ein dunkles Pulver dar, sie löst  sich in Wasser     mit    brauner, in     konz.    Schwe  felsäure mit blauer Farbe und färbt     Baum-          wolle    in lichtechten braunen Tönen.



      Additional patent to main patent no. 217234. Process for the production of a metal-containing stilbene azo dye. The subject of the present additional patent is a process for the production of a metal-containing stilbene azo dye, which is characterized in that the dye 4-chloro-2-amino-l-oxybenzene <B>----> </B> m-anisidine and the dye sulfanilic acid -> aniline with 4,4'-dinitrostilbene-2,

  2'-disulfonic acid condenses and the condensation product is converted into the copper complex compound.



  <I> Example: </I> 28 parts of the dye 4-chloro-2-amino-l-oxybenzene ->. m-anisidine and 28 parts of the dye sulfanilic acid # - aniline are condensed for 15 to 18 hours at the boiling point with 43 parts of 4,4'-dinitrostilbene-2,2'-disulfonic acid in 400 parts of water and 80 parts of sodium hydroxide solution 36 B6. After cooling, it is neutralized with hydrochloric acid at approx. 30, the condensation product is completely precipitated with common salt and filtered.



  The copper compound of the dye is obtained, for example, by dissolving the above dye in 2000 parts of water and 15 parts of 25% ammonia, a solution of 25 parts of crystalline at 80 to 90. Copper sulfate in 100 parts, water and 50 parts of 25% ammonia is allowed to flow in and heated to 90 to 95 for 12 hours. The metallized compound is isolated in the usual way by salting out and filtered.



  The dried copper complex compound is a dark powder, it dissolves in water with a brown, in conc. Sulfur acid with a blue color and dyes cotton in lightfast brown tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines metall haltigen Stilbenazofarbstoffes, dadurch ge kennzeichnet, dass man den Farbstoff 4-Chlor- 2-amino-l-oxybenzol > m-Anisidin und den Farbstoff Sulfanilsäure --> Anilin mit 4,4'-Dinitrostilben-2,2'-disulfonsäure kon densiert und das Kondensationsprodukt in die Kupferkomplexverbindung überführt. Claim: Process for the production of a metal-containing stilbene azo dye, characterized in that the dye 4-chloro-2-amino-1-oxybenzene> m-anisidine and the dye sulfanilic acid -> aniline with 4,4'-dinitrostilbene-2 , 2'-disulfonic acid condenses and the condensation product is converted into the copper complex compound. Der neue Farbstoff stellt ein dunkles Pul ver dar, er löst sich in Wasser mit brauner, in konz. Schwefelsäure mit blauer Farbe und färbt Baumwolle in lichtechten braunen Tönen. The new dye is a dark powder, it dissolves in water with brown, in conc. Sulfuric acid with a blue color and dyes cotton in lightfast brown tones.
CH232496D 1940-11-20 1940-11-20 Process for the preparation of a metal-containing stilbene azo dye. CH232496A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH217234T 1940-11-20
CH232496T 1940-11-20

Publications (1)

Publication Number Publication Date
CH232496A true CH232496A (en) 1944-05-31

Family

ID=25725962

Family Applications (1)

Application Number Title Priority Date Filing Date
CH232496D CH232496A (en) 1940-11-20 1940-11-20 Process for the preparation of a metal-containing stilbene azo dye.

Country Status (1)

Country Link
CH (1) CH232496A (en)

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