CH229352A - Process for the preparation of a direct drawing copper-containing dye. - Google Patents

Process for the preparation of a direct drawing copper-containing dye.

Info

Publication number
CH229352A
CH229352A CH229352DA CH229352A CH 229352 A CH229352 A CH 229352A CH 229352D A CH229352D A CH 229352DA CH 229352 A CH229352 A CH 229352A
Authority
CH
Switzerland
Prior art keywords
dye
copper
brown
preparation
water
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 CH229352A publication Critical patent/CH229352A/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

  

  Verfahren zur Darstellung eines direkt ziehenden kupferhaltigen     Farbstoffes.       Gegenstand des     vorliegenden    Zusatzpaten  tes ist ein Verfahren zur Darstellung eines  kupferhaltigen Farbstoffes, dadurch ,gekenn-  
EMI0001.0003     
    kondensiert und das     Kondensationsprodukt     noch mit kupferabgebenden     Mitteln    behan  delt. Durch Nachbehandeln des Farbstoffes  mit     oxydierenden        Mitteln,    wie     Ilypochlori-          ten,    kann die Reinheit des: Farbtones noch       gesteigert    werden.

      <I>Beispiel:</I>    63 Teile des     Triazols,    erhalten durch       Oxydation    des     Kupplungsproduktes    aus       diazotierter    4 -     Nitro    -     4'-        amino-.stilben    - 2, 2'  disulfonsäure und     2-Naphthylamin-6-sulfon-          säure,    und 28 Teile des durch Kuppeln von    zeichnet,

   dass man den durch     Kupplung    von       diazotiertem        1-Oxy-2-amino-4-nitrobenzol    mit       m-Anisidin    erhaltenen     Aminoazofarbstoff     mit einem     Triazol    der Formel         1-Ogy-2-diazo-4-nitrobenzol    mit     m-Anisidin     hergestellten     Aminoazofarbstoffes    werden  mit 700 Teilen Wasser und 120 Teilen Na  tronlauge     36'B6    14-16 Stunden bei Siede  temperatur unter     Rückfluss    kondensiert und  in     üblicher    Weise in eine     Kupferverbindung     übergeführt.  



  Der metallisierte Farbstoff stellt ein  braunschwarzes Pulver dar; er löst sich in  Wasser mit brauner, in konzentrierter Schwe  felsäure mit blauer Farbe und färbt     Zellu-          losefasern    in licht- und wasserechten braunen  Tönen.



  Process for the preparation of a direct drawing copper-containing dye. The subject of the present additional patent is a method for the preparation of a copper-containing dye, thereby marked
EMI0001.0003
    condensed and the condensation product still treated with copper releasing agents. By treating the dye with oxidizing agents such as Ilypochlorites, the purity of the color can be increased.

      <I> Example: </I> 63 parts of the triazole, obtained by oxidation of the coupling product from diazotized 4 - nitro - 4'-amino-.stilbene - 2, 2 'disulfonic acid and 2-naphthylamine-6-sulfonic acid, and 28 parts of the draws by coupling of,

   700 parts of the aminoazo dye obtained by coupling diazotized 1-oxy-2-amino-4-nitrobenzene with m-anisidine with a triazole of the formula 1-Ogy-2-diazo-4-nitrobenzene with m-anisidine are used Water and 120 parts of sodium hydroxide solution 36'B6 condensed for 14-16 hours at boiling temperature under reflux and converted in the usual way into a copper compound.



  The metallized dye is a brown-black powder; it dissolves in water with a brown color, in concentrated sulfuric acid with a blue color and dyes cellulose fibers in light- and water-fast brown tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines kupfer haltigen Farbstoffes, dadurch gekennzeieh- EMI0002.0002 kondensiert und das Kondensationsprodukt noch mit kupferabgebenden Mitteln behan delt. Der neue Farbstoff stellt ein braun schwarzes Pulver dar; er löst sich in Wasser mit brauner, in konzentrierter Schwefelsäure mit blauer Farbe und färbt Zellulosefasern in licht- und wasserechten braunen Tönen. PATENT CLAIM: Process for the representation of a copper-containing dye, thereby marked EMI0002.0002 condensed and the condensation product still treated with copper releasing agents. The new dye is a brown-black powder; it dissolves in water with brown color, in concentrated sulfuric acid with blue color and dyes cellulose fibers in light- and water-fast brown tones. net, dass man den durch Kupplung von diazo- niertem 1-Oxy-2-amino-4-nitrobenzol mit m-Anisidin erhaltenen Aminoazofarbstoff mit einem Triazol der Formel UNTERANSPRUCH: Verfahren nach Patentarisprueh, dadurch gekennzeichnet, dass der Farbstoff zur Reini gung einer Behandlung mit oxydierenden Mitteln unterworfen wird. net that the aminoazo dye obtained by coupling diazo- nated 1-oxy-2-amino-4-nitrobenzene with m-anisidine can be mixed with a triazole of the formula SUBClaim: Method according to Patentarisprueh, characterized in that the dye is used for cleaning a treatment is subjected to oxidizing agents.
CH229352D 1941-11-05 1941-11-06 Process for the preparation of a direct drawing copper-containing dye. CH229352A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2394998X 1941-11-05
CH561117X 1941-11-06
CH229352T 1941-11-06

Publications (1)

Publication Number Publication Date
CH229352A true CH229352A (en) 1943-10-15

Family

ID=32110422

Family Applications (1)

Application Number Title Priority Date Filing Date
CH229352D CH229352A (en) 1941-11-05 1941-11-06 Process for the preparation of a direct drawing copper-containing dye.

Country Status (1)

Country Link
CH (1) CH229352A (en)

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