CH203039A - Process for the preparation of an azo dye containing complex bonded copper. - Google Patents

Process for the preparation of an azo dye containing complex bonded copper.

Info

Publication number
CH203039A
CH203039A CH203039DA CH203039A CH 203039 A CH203039 A CH 203039A CH 203039D A CH203039D A CH 203039DA CH 203039 A CH203039 A CH 203039A
Authority
CH
Switzerland
Prior art keywords
azo dye
copper
preparation
containing complex
bonded copper
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH203039A publication Critical patent/CH203039A/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
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium
    • 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
    • C09B45/14—Monoazo compounds
    • C09B45/18—Monoazo compounds containing copper

Description

  

  Verfahren zur Herstellung eines     komplex    gebundenes Kupfer enthaltenden       Azofarbstoffes.       Es wurde gefunden, dass ein komplex .ge  bundenes Kupfer enthaltender     Azofarbstoff          hergestellt    werden kann, wenn der     Azofarb-          stoff    der Formel  
EMI0001.0007     
    mit kupferabgebenden     Mitteln        behandelt          wird.     



  Die neue     Kupferverbindung    stellt ein  braunes Pulver dar, das sich in     .Wasser    mit       gelboranger,    in     1-0%iger    Sololösung, sowie  in 10 %     iger    Natronlauge mit     orangeroter    und  in konzentrierter Schwefelsäure mit gelber  Farbe löst.     iSie    erzeugt auf Leder     lhellbraune          Töne    von sehr     ,guten        Echtheitseigenschaften.     



  Der dem- Verfahren als     Ausgangsstoff       dienende-     AzoTarbstoff    der obigen Formel       kann    durch Kupplung in          alkalischem Me  dium von     diazotierter        2-Amino-6-carboxy-l-          oxybenzol    - 4 -     sulfonsäure    und     Perinaphth-          in.dandion-,5-sulfonsäure    erhalten werden.  



  Die     Behandlung    mit kupferabgebenden  Mitteln erfolgt nach den     bekannten    Metho  den,     beispielsweise    durch Erhitzen in wässe  riger Lösung mit Kupfersalzen.    <I>Beispiel:</I>    52 Teile des     Azofarbstoffes    aus     diazo-          tierter        2-Amino-l-oxy-6-carboxybenzol-4-sul-          fonsäure    und     Perinaphthindandion-5-sulfon-          säure    werden in 1000 Teilen Wasser gelöst  und mit einer     Kupfersulfatlösun.g,        enthaltend          3,

  0        Teile          Kupfersulfat,    so  lange zum Sieden erhitzt, bis der     Azofarb-          stoff    vollständig 'in die     Kupferverbindung          übergegangen    ist.     Hierauf        scheidet    man den  Farbstoff durch Beigabe von Kochsalz aus,  filtriert und trocknet.



  Process for the preparation of an azo dye containing complex bonded copper. It has been found that an azo dye containing complex .ge bound copper can be produced if the azo dye of the formula
EMI0001.0007
    is treated with copper-releasing agents.



  The new copper compound is a brown powder that dissolves in water with yellow-orange color, in 1-0% strength solution, as well as in 10% sodium hydroxide solution with orange-red color and in concentrated sulfuric acid with yellow color. iSie produces light brown tones with very, good fastness properties on leather.



  The azo dye of the above formula which serves as the starting material for the process can be obtained by coupling in alkaline medium of diazotized 2-amino-6-carboxy-l-oxybenzene-4-sulfonic acid and perinaphth-in.dandione-, 5-sulfonic acid.



  The treatment with copper-releasing agents is carried out according to the known methods, for example by heating in an aqueous solution with copper salts. <I> Example: </I> 52 parts of the azo dye from diazotized 2-amino-1-oxy-6-carboxybenzene-4-sulphonic acid and perinaphthindanedione-5-sulphonic acid are dissolved in 1000 parts of water and mixed with a copper sulfate solution containing 3,

  0 parts of copper sulphate, heated to the boil until the azo dye has completely converted into the copper compound. The dye is then separated out by adding common salt, filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines komplex gebundenes Kupfer enthaltenden Azofarb- Stoffes, dadurch gekennzeichnet, dass der Azofarbstoff der Formel EMI0002.0002 mit kupferabgebenden Mitteln behandelt wird. Die neue Kupferverbindung stellt ein braunes Pulver dar, das sich in Wasser mit gelboranger, in 10%iger Sodaläsung, sowie in 10 % iger Natronlauge mit orangeroter und in konzentrierter Schwefelsäure mit gelber Farbe löst. Sie erzeugt auf Leder hellbraune Töne von sehr guten Echtheitseigenschaften. PATENT CLAIM: Process for the production of a complex-bonded copper-containing azo dye, characterized in that the azo dye of the formula EMI0002.0002 is treated with copper-releasing agents. The new copper compound is a brown powder that dissolves in water with yellow-orange, in 10% soda solution, as well as in 10% sodium hydroxide solution with orange-red and in concentrated sulfuric acid with yellow color. It produces light brown tones with very good fastness properties on leather.
CH203039D 1937-05-22 1937-05-22 Process for the preparation of an azo dye containing complex bonded copper. CH203039A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH203039T 1937-05-22
CH199462T 1938-08-31

Publications (1)

Publication Number Publication Date
CH203039A true CH203039A (en) 1939-02-15

Family

ID=25723303

Family Applications (1)

Application Number Title Priority Date Filing Date
CH203039D CH203039A (en) 1937-05-22 1937-05-22 Process for the preparation of an azo dye containing complex bonded copper.

Country Status (1)

Country Link
CH (1) CH203039A (en)

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