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CH313106A - Process for the preparation of a copper-containing polyazo dye of the stilbene series - Google Patents

Process for the preparation of a copper-containing polyazo dye of the stilbene series

Info

Publication number
CH313106A
CH313106A CH313106DA CH313106A CH 313106 A CH313106 A CH 313106A CH 313106D A CH313106D A CH 313106DA CH 313106 A CH313106 A CH 313106A
Authority
CH
Switzerland
Prior art keywords
copper
polyazo dye
preparation
brown
stilbene series
Prior art date
Application number
Other languages
German (de)
Inventor
Kappeler Markus Dipl-Ing Che H
Schweizer August
Original Assignee
Sandoz Ag
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 Sandoz Ag filed Critical Sandoz Ag
Publication of CH313106A publication Critical patent/CH313106A/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
    • 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

  

  <B>Zusatzpatent</B>     zum    Hauptpatent     Nr.    312189    Verfahren zur Herstellung eines kupferhaltigen     Polyazofarbatoffes    der     Stilbenreihe            Gegenstand    des vorliegenden Patentes ist  ein Verfahren     zur    Herstellung eines kupfer  haltigen     Polyazofarbstoffes    der     Stilbenreihe,       welches darin besteht, dass man 1     Mol    der       Aminodisazoverbindung    der Zusammenset  zung  
EMI0001.0011     
         diazotiert,

      den     Diazokörper    mit 1     Mol    der       Kupferkomplexverbindung    von     2,2',4'-Trioxy-          1,1'-azoben7ol-5-sulfonsäure    vereinigt und auf  das so erhaltene Kupplungsprodukt die     Diazo-          verbindung    aus 1     Mol        1-Amino-4-nitrobenzol-          2-sulfonsäure    einwirken lässt.  



  Der neue, kupferhaltige     Polyazofarbstoff     der     Stilbenreihe    ist ein braunschwarzes Pul  ver, welches sich in Wasser mit rotbrauner    Farbe löst und     Chromvelourleder    in lebhaften  braunen Tönen färbt.  



  Im nachfolgenden Beispiel bedeuten die  Teile Gewichtsteile, und die Prozente sind in  Gewichtsprozenten angegeben.  



  <I>Beispiel</I>  64,3 Teile der     Aminodisazoverbindung        der     Zusammensetzung  
EMI0001.0028     
    werden in Form des     Natriumsalzes    in 1000  Teilen Wasser gelöst und durch Zugabe einer  Lösung von 7 Teilen     Natriumuitrit    in 20 Tei  len Wasser und 30 Teilen     30 /aiger    Salzsäure  bei 10      diazotiert.    Die Lösung der     Diazover-          bindung    lässt man in eine eisgekühlte Lösung  von 37,2 Teilen der     Kupferkomplexverbin-          dung    aus     2,2',4'-Trioxy-1,

  7.'-azobenzol-5-sulfon-          säure    und 40 Teilen     Natriumcarbonat    in 400  Teilen Wasser fliessen. Hierauf werden der       Kumphtngslösung    weitere 40 Teile Natrium-         carbonat    zugegeben. Dann gibt man ihr die  Lösung der     Diazoverbindung    aus 21,8 Teilen       1-Amino-4-nitrobenzol-2-sulfonsäure    zu. Nach  beendigter Kupplung wird der erhaltene kup  ferhaltige     Polyazofarbstoff        mittels    Natrium  chlorids abgeschieden, von der Lösung     abfil-          triert    und getrocknet.

   Er ist ein braunschwar  zes Pulver, welches sich in Wasser mit rotbrau  ner Farbe löst und     Chromvelourleder    in leb  haften braunen Tönen färbt.



  <B> Additional patent </B> to the main patent No. 312189 Process for the production of a copper-containing polyazo carbate of the stilbene series The subject of the present patent is a process for the production of a copper-containing polyazo dye of the stilbene series, which consists in adding 1 mol of the aminodisazo compound of the composition
EMI0001.0011
         diazotized,

      the diazo body combined with 1 mole of the copper complex compound of 2,2 ', 4'-trioxy-1,1'-azoben7ol-5-sulfonic acid and on the coupling product thus obtained the diazo compound of 1 mole 1-amino-4-nitrobenzene 2-sulfonic acid can act.



  The new, copper-containing polyazo dye from the stilbene range is a brown-black powder that dissolves in water with a red-brown color and colors chrome suede in lively brown tones.



  In the example below, parts are parts by weight and percentages are percentages by weight.



  <I> Example </I> 64.3 parts of the aminodisazo compound of the composition
EMI0001.0028
    are dissolved in 1000 parts of water in the form of the sodium salt and diazotized at 10 by adding a solution of 7 parts of sodium peritrite in 20 parts of water and 30 parts of 30% hydrochloric acid. The solution of the diazo compound is left in an ice-cold solution of 37.2 parts of the copper complex compound of 2,2 ', 4'-trioxy-1,

  7'-azobenzene-5-sulfonic acid and 40 parts of sodium carbonate flow in 400 parts of water. A further 40 parts of sodium carbonate are then added to the cumulative solution. The solution of the diazo compound from 21.8 parts of 1-amino-4-nitrobenzene-2-sulfonic acid is then added to it. When the coupling is complete, the copper-containing polyazo dye obtained is precipitated using sodium chloride, filtered off from the solution and dried.

   It is a brown-black powder which dissolves in water with a red-brown color and colors chrome suede in lively brown tones.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines kupfer haltigen Polyazofarbstoffes der Stilbenreihe, dadurch gekennzeichnet, dass man 1 Mol der Aminodisazoverbindung der Zusammenset zung EMI0002.0005 diazotiert, den Diazokörper mit 1 lZol der Kupferkomplexverbindung von 2,2',4'-Trioxy- 1, PATENT CLAIM Process for the preparation of a copper-containing polyazo dye of the stilbene series, characterized in that 1 mol of the aminodisazo compound of the composition EMI0002.0005 diazotized, the diazo body with 1 lZol of the copper complex compound of 2,2 ', 4'-trioxy-1, 1'-azobenzol-5-sulfonsäure vereinigt und auf das so erhaltene Kupplungsprodukt die Diazo- verbindung aus 1 Mol 1-Amino-4-nitrobenzol- 2-sulfonsäure einwirken lässt. Der neue, kupferhaltige Polyazofarbstoff der Stilbenreihe ist. ein braunschwarzes Pul ver, welches sich in Wasser mit rotbrauner Farbe löst und Chrontv elourleder in lebhaften braunen Tönen färbt. 1'-azobenzene-5-sulfonic acid is combined and the diazo compound from 1 mole of 1-amino-4-nitrobenzene-2-sulfonic acid is allowed to act on the coupling product thus obtained. The new, copper-containing polyazo dye of the stilbene series is. a brown-black powder that dissolves in water with a red-brown color and dyes Chrontv elour leather in lively brown tones.
CH313106D 1952-12-24 1952-12-24 Process for the preparation of a copper-containing polyazo dye of the stilbene series CH313106A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH312189T 1952-12-24
CH313106T 1952-12-24

Publications (1)

Publication Number Publication Date
CH313106A true CH313106A (en) 1956-03-15

Family

ID=25735885

Family Applications (1)

Application Number Title Priority Date Filing Date
CH313106D CH313106A (en) 1952-12-24 1952-12-24 Process for the preparation of a copper-containing polyazo dye of the stilbene series

Country Status (1)

Country Link
CH (1) CH313106A (en)

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