CH313103A - 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
CH313103A
CH313103A CH313103DA CH313103A CH 313103 A CH313103 A CH 313103A CH 313103D A CH313103D A CH 313103DA CH 313103 A CH313103 A CH 313103A
Authority
CH
Switzerland
Prior art keywords
copper
stilbene
polyazo dye
brown
preparation
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 CH313103A publication Critical patent/CH313103A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B56/00Azo dyes containing other chromophoric systems
    • C09B56/04Stilbene-azo dyes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00Complex metal compounds of azo dyes
    • C09B45/02Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/24Disazo or polyazo compounds
    • C09B45/28Disazo 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     Polyazofarbstoffes    der     Stilbenreihe            Gegenstand    des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines kupfer  haltigen     Polyazofarbstoffes    der     Stilbenreihe,     welches darin besteht, dass man 1     Mol        4-Amino-          4'    - (4" -     oxy-        3"carboxyphenyl-1"-azo)        -1,1'-stil-          ben-2,

  2'-disulfonsäure        diazotiert    und den     Di-          azokörper    mit 1     Mol    der     Kupferkomplexver-          bindung    von     2,2',4'-Trioxy-1,1'-azobenzol-5-          sulfonsäure    vereinigt.  



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



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



       Beispiel.     51,9 Teile     4-Amino-4'-(4"-oxy-3"-earboxy-          phenyl    -1" -     azo)        -1,1'-stilben    -     2,2'-disulfonsäure     werden in 1000 Teilen Wasser neutral gelöst  und auf 10-15  abgekühlt. Der     Lösung    setzt  man unter Rühren eine Lösung von 7 Teilen       Natriumnitrit    in 25 Teilen Wasser und 30  Teilen     30o/oiger    Salzsäure zu.

   Nach beendig-         ter        Diazotierung    lässt man die so erhaltene       Diazosuspension    zu einer     eisgekühlten    Lösung  aus 37,2 Teilen der     Kupferkomplexverbin-          dung    von     2,2',4'-Trioxy-1,1'-azobenzol-5-sul-          fonsäure,    40 Teilen     Natriumcarbonat        und    400  Teilen Wasser fliessen. Der entstandene kup  ferhaltige     Polyazofarbstoff    wird mittels Koch  salz aus der Lösung ausgefällt,     abfiltriert     und getrocknet.

   Er stellt ein braunschwarzes  Pulver dar, welches sich in Wasser mit rot  brauner Farbe löst und     Chromvelourleder    in  lebhaften,     rotstichig    braunen Tönen färbt.



  <B> Additional patent </B> to main patent No. 312189 Process for the production of a copper-containing polyazo dye 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 4-amino-4 '- (4 "- oxy- 3" carboxyphenyl-1 "-azo) -1,1'-stilbene-2,

  2'-disulfonic acid is diazotized and the diazo body is combined with 1 mol of the copper complex compound of 2,2 ', 4'-trioxy-1,1'-azobenzene-5-sulfonic acid.



  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 dyes chrome suede in lively, red-brown tones.



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



       Example. 51.9 parts of 4-amino-4 '- (4 "-oxy-3" -earboxy-phenyl -1 "- azo) -1,1'-stilbene-2,2'-disulfonic acid are dissolved in 1000 parts of water until neutral and cooled to 10-15. A solution of 7 parts of sodium nitrite in 25 parts of water and 30 parts of 30% hydrochloric acid is added to the solution with stirring.

   When the diazotization is complete, the diazo suspension thus obtained is added to an ice-cold solution of 37.2 parts of the copper complex compound of 2,2 ', 4'-trioxy-1,1'-azobenzene-5-sulphonic acid, 40 parts Sodium carbonate and 400 parts of water flow. The resulting copper-containing polyazo dye is precipitated from the solution using sodium chloride, filtered off and dried.

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

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines kupfer haltigen Polyazofarbstoffes der Stilbenreihe, dadurch gekennzeichnet, dass man 1 Mol 4- Amino - 4'- (4"-oxy- 3" - carboxyphenyl-1"-azo) - 1,1.'-stilben-2,2'-disulfonsäure diazotiert und. PATENT CLAIM Process for the production of a copper-containing polyazo dye of the stilbene series, characterized in that 1 mol of 4-amino-4'- (4 "-oxy- 3" -carboxyphenyl-1 "-azo) -1,1 .'- stilbene- 2,2'-disulfonic acid and diazotized. den Diazokörper mit 1 Mol der Kupferkom- plexverbindung von 2,2',4'-Trioxy-1,1'-azoben- zol-5-sulfonsäure vereinigt. Der neue, kupferhaltige Polyazofarbstoff der Stilbenreihe ist ein braunschwarzes Pul ver, das sich in Wasser mit rotbrauner Farbe löst und Chromvelourleder in lebhaften, rot stichig braunen Tönen färbt. the diazo body combined with 1 mole of the copper complex compound of 2,2 ', 4'-trioxy-1,1'-azobenzene-5-sulfonic acid. 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 dyes chrome suede in lively, red-brown tones.
CH313103D 1952-12-24 1952-12-24 Process for the preparation of a copper-containing polyazo dye of the stilbene series CH313103A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH312189T 1952-12-24
CH313103T 1952-12-24

Publications (1)

Publication Number Publication Date
CH313103A true CH313103A (en) 1956-03-15

Family

ID=25735882

Family Applications (1)

Application Number Title Priority Date Filing Date
CH313103D CH313103A (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) CH313103A (en)

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