CH232500A - 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
CH232500A
CH232500A CH232500DA CH232500A CH 232500 A CH232500 A CH 232500A CH 232500D A CH232500D A CH 232500DA CH 232500 A CH232500 A CH 232500A
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 CH232500A publication Critical patent/CH232500A/en

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
    • 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        ->     <U>.</U>       m-Anisidin    und den Farbstoff     Sulfanilsäure          2,5-Dimethoxyanilin    mit     4,

  4'-Dinitro-          stilben-2,2'-disulfonsäure    kondensiert und das       Kondensationsprodukt    in die Kupferkomplex  verbindung überführt.  



  <I>Beispiel:</I>  28 Teile des Farbstoffes     4-Chlor-2-amino-          1-oxybenzol        >         m-Anisidin    und 34 Teile  des Farbstoffes     Sulfanilsäure        ->-        2,5-Di-          methoxyanilin    werden 15 bis 18 Stunden in  der Siedehitze mit 43     Teilen        4,4'-Dinitro-          stilben-2,2'-disulfonsäure    in 400 Teilen Was  ser und 80 Teilen Natronlauge 36      B6    kon  densiert.

   Nach dem Abkühlen wird bei ca. 30   mit Salzsäure     neutralisiert,    das Konden  sationsprodukt vollends mit Kochsalz ausge  fällt 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 Bordeaux, in     konz.        Schwe          felsäure    mit blauer Farbe und färbt Baum  wolle     @    in lichtechten     violettstichig    braunen  Tönen.



      Additional patent to main patent no. 217234. Process for the preparation 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-1-oxybenzene -> <U>. </U> m-anisidine and the dye Sulfanilic acid 2,5-dimethoxyaniline with 4,

  4'-Dinitro-stilbene-2,2'-disulfonic acid is condensed and the condensation product is converted into the copper complex compound.



  <I> Example: </I> 28 parts of the dye 4-chloro-2-amino-1-oxybenzene> m-anisidine and 34 parts of the dye sulfanilic acid -> - 2,5-dimethoxyaniline are 15 to 18 hours in the boiling point with 43 parts of 4,4'-dinitro-stilbene-2,2'-disulfonic acid in 400 parts of water and 80 parts of sodium hydroxide 36 B6 condensed.

   After cooling, the mixture is neutralized with hydrochloric acid at about 30, the condensation product is completely precipitated with sodium chloride 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 of water and 50 parts of 25% ammonia can flow in and heated to 90 to 95 hours. The metallized compound is isolated in the usual manner by salting out and filtered.

    



  The dried copper complex compound is a dark powder, it dissolves in water with Bordeaux, in conc. Sulfuric acid with a blue color and dyes Baumwolle @ in lightfast violet-tinged 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 ->- 2,5-Di- methoxyanilin mit 4,4'-Dinitrostilben-2, PATENT 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 -> - 2,5-dimethoxyaniline with 4,4'-dinitrostilbene-2, 2'-di- sulfonsäure@ kondensiert und das Konden- sationsprodlZL in die Kupferkomplexverbin- dung überführt. Der neue Farbstoff stellt ein dunkles Pulver dar, er löst sich in Wasser mit bor- deaux, in konz. Schwefelsäure mit blauer Farbe und färbt Baumwolle in lichtechten violettstichig braunen Tönen. 2'-disulfonic acid @ condenses and the condensation product is converted into the copper complex compound. The new dye is a dark powder; it dissolves in water with boronux, in conc. Sulfuric acid with a blue color and dyes cotton in lightfast purple-tinged brown tones.
CH232500D 1940-11-20 1940-11-20 Process for the preparation of a metal-containing stilbene azo dye. CH232500A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH232500T 1940-11-20
CH217234T 1940-11-20

Publications (1)

Publication Number Publication Date
CH232500A true CH232500A (en) 1944-05-31

Family

ID=25725966

Family Applications (1)

Application Number Title Priority Date Filing Date
CH232500D CH232500A (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) CH232500A (en)

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