CH199462A - Process for the preparation of an azo dye containing complexed chromium. - Google Patents

Process for the preparation of an azo dye containing complexed chromium.

Info

Publication number
CH199462A
CH199462A CH199462DA CH199462A CH 199462 A CH199462 A CH 199462A CH 199462D A CH199462D A CH 199462DA CH 199462 A CH199462 A CH 199462A
Authority
CH
Switzerland
Prior art keywords
azo dye
chromium
dye containing
preparation
red
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 CH199462A publication Critical patent/CH199462A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines komplex     gebundenes    Chrom enthaltenden       Azofarbstoffes.       Es wurde gefunden, dass ein komplex ge  bundenes Chrom enthaltender     Azofarbstoff     hergestellt werden kann, wenn der     Azofarb-          stoff    der Formel  
EMI0001.0006     
    mit chromabgebenden Mitteln behandelt wird.

    Die neue Chromverbindung stellt ein  graues Pulver dar, das sich in Wasser mit  roter, in 10     0%iger        Sodalösung,    sowie in       10        %iger        Natronlauge        mit        braunroter        und     in konzentrierter Schwefelsäure mit oranger  Farbe löst. Sie erzeugt auf Leder bordeaux  rote Töne von sehr guten Echtheitseigen  schaften.

      Der dem Verfahren als Ausgangsstoff  dienende     Azofarbstoff    der obigen Formel kann  durch Kupplung in alkalischem Medium von  dianotierter     2-Amino-6-nitro-l-oxybenzol-4-          sulfonsäure    und     5-Nitroperinaphthindandion     erhalten werden.  



  Die Behandlung mit chromabgebenden  Mitteln erfolgt nach den bekannten Methoden,  beispielsweise durch Erhitzen in wässeriger  Lösung mit Salzen des dreiwertigen Chroms.         Beispiel:       48,6 Teile des     Azofarbstoffes    aus diano  tierter     6-Nitro-2-amino-l-oxybenzol-4-sulfon-          säure    und     5-Nitroperinaphthindandion    werden  in 1000 Teilen Wasser gelöst und mit einer       Chromfluoridlösung,    enthaltend 9,1 Teile       Cr20s,    24 Stunden zum Sieden erhitzt.

   Hier  auf filtriert man heiss von beigemengten un  löslichen Bestandteilen ab, scheidet die  Chromverbindung     durch    Beigabe von Koch  salz aus, filtriert und trocknet.



  Process for the preparation of an azo dye containing complexed chromium. It has been found that an azo dye containing complexly bound chromium can be produced if the azo dye of the formula
EMI0001.0006
    is treated with chromium-releasing agents.

    The new chromium compound is a gray powder that dissolves in water with red, in 10 0% soda solution, as well as in 10% sodium hydroxide solution with brownish red and in concentrated sulfuric acid with orange color. It produces burgundy red tones with very good fastness properties on leather.

      The azo dye of the above formula which is used as starting material for the process can be obtained by coupling in an alkaline medium dianotated 2-amino-6-nitro-1-oxybenzene-4-sulfonic acid and 5-nitroperinaphthindanedione.



  The treatment with chromium-releasing agents takes place according to the known methods, for example by heating in an aqueous solution with salts of trivalent chromium. Example: 48.6 parts of the azo dye from diano-tated 6-nitro-2-amino-1-oxybenzene-4-sulfonic acid and 5-nitroperinaphthindanedione are dissolved in 1000 parts of water and treated with a chromium fluoride solution containing 9.1 parts of Cr20s Heated to the boil for 24 hours.

   Here, added insoluble constituents are filtered off while hot, the chromium compound is separated out by adding sodium chloride, filtered and dried.

Claims (1)

PATEI\1TANSPRüG13 Verfahren zur Herstellung eines komplex gebundenes Chrom enthaltenden Azofarb- stoffes, dadurch gekennzeichnet, dass der Azo- farbstoff der Formel EMI0002.0006 mit chromabgebenden Mitteln behandelt wird. Die neue Chromverbindung stellt ein graues Pulver dar, das sich in Wasser mit roter, in 10 %ger Sodalüsung, sowie in 10o/oiger Natronlauge mit braunroter, und in konzentrierter Schwefelsäure mit oranger Farbe löst. PATEI \ 1TANSPRüG13 Process for the production of an azo dye containing complexly bound chromium, characterized in that the azo dye of the formula EMI0002.0006 is treated with chromium-releasing agents. The new chromium compound is a gray powder that dissolves in water with a red, 10% soda solution, as well as in 10% sodium hydroxide solution with a brownish-red color, and in concentrated sulfuric acid with an orange color. Sie erzeugt auf Leder Bordeaux rote Töne von sehr guten Echtheitseigen schaften. It produces red tones with very good fastness properties on Bordeaux leather.
CH199462D 1938-08-31 1937-05-22 Process for the preparation of an azo dye containing complexed chromium. CH199462A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH199462T 1938-08-31

Publications (1)

Publication Number Publication Date
CH199462A true CH199462A (en) 1938-08-31

Family

ID=4441846

Family Applications (1)

Application Number Title Priority Date Filing Date
CH199462D CH199462A (en) 1938-08-31 1937-05-22 Process for the preparation of an azo dye containing complexed chromium.

Country Status (1)

Country Link
CH (1) CH199462A (en)

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