CH200065A - 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
CH200065A
CH200065A CH200065DA CH200065A CH 200065 A CH200065 A CH 200065A CH 200065D A CH200065D A CH 200065DA CH 200065 A CH200065 A CH 200065A
Authority
CH
Switzerland
Prior art keywords
azo dye
chromium
preparation
dye containing
brown
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 CH200065A publication Critical patent/CH200065A/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
    • C09B45/18—Monoazo compounds containing copper
    • 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
    • C09B45/20—Monoazo compounds containing cobalt

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 durch Be  handeln des     Azofarbstoffes    der Formel  
EMI0001.0004     
    mit     sulfonierenden        Mitteln    bis zum     Eintritt     einer     iSulfonsäaregruppe        erhaltene        mono-          sulfonierte        Azofarbstoff    mit chromabgeben  den     Mitteln        behandelt     <RTI  

   ID="0001.0015">   wird.     



  Die neue     Chromverbindung    stellt ein  graues Pulver dar, das sich in Wasser, in  10 %     iger        Sodalösung    und in 10 %     iger    Natron-    lauge mit     rotbrauner,    in konzentrierter  Schwefelsäure mit gelbbrauner Farbe löst.  Sie färbt Leder in     tiefbraunen    Tönen von  guten Echtheitseigenschaften.  



  Der dem Verfahren als Ausgangsstoff  dienende     monosulfonierte        Azofarbstoff    kann  erhalten werden, wenn man 18 Teile des  Farbstoffes     aus        diazotiertem        2-Amino-l-oxy-          5-nitrobenzol    und     Perinaphthindandion    unter  halb 20'     in    100 Teile rauchende Schwefel  säure, die 24% Sog enthält,     einträgt,    6 Stun  den auf 95 bis<B>100'</B> erwärmt, das Reaktions  gemisch auf 400 Teile Eis und Wasser giesst,  den     sulfonierten    Farbstoff durch Kochsalz  zugabe abscheidet, filtriert,

   mit Kochsalz  lösung     nachwäscht    und trocknet.  



  Die Behandlung mit     chromabgebenden     Mitteln erfolgt nach den bekannten Me  thoden, beispielsweise durch Erhitzen in wäs  serigem Medium     mit        Salzen        des,    dreiwertigen  Chroms.           Beispiel:     44 Teile des monosulfonierten     Azofarb-          stoffes    aus dianotiertem     2-Amino-l-oxy-5-          nitrobenzol    und     Perinaphthindandion    werden  in 750 Teilen Wasser gelöst und mit einer       Fluorchromlösung,    enthaltend 8,3 Teile     CrzOa,     24 Stunden zum Sieden erhitzt.

   Hierauf fil  triert man von beigemengten unlöslichen Be  standteilen ab, scheidet die Chromverbindung  durch Beigabe von Kochsalz ab, filtriert,  wäscht mit     Kochsalzlösung    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 prepared if the azo dye of the formula ## STR3 ## is treated
EMI0001.0004
    monosulfonated azo dye obtained with sulfonating agents until an isulfonic acid group occurs, treated with chromium-releasing agents <RTI

   ID = "0001.0015"> will.



  The new chromium compound is a gray powder that dissolves in water, in 10% sodium carbonate solution and in 10% sodium hydroxide solution with a red-brown color, and in concentrated sulfuric acid with a yellow-brown color. It dyes leather in deep brown shades with good fastness properties.



  The monosulfonated azo dye used as the starting material for the process can be obtained by adding 18 parts of the dye from diazotized 2-amino-1-oxy-5-nitrobenzene and perinaphthindanedione to 100 parts of fuming sulfuric acid containing 24% suction, enters, heated for 6 hours to 95 to <B> 100 '</B>, the reaction mixture is poured onto 400 parts of ice and water, the sulfonated dye is separated off by adding sodium chloride, filtered,

   washed with saline solution and dried.



  The treatment with chromium-releasing agents is carried out according to the known Me methods, for example by heating in an aqueous medium with salts of trivalent chromium. Example: 44 parts of the monosulfonated azo dye from dianotized 2-amino-1-oxy-5-nitrobenzene and perinaphthindanedione are dissolved in 750 parts of water and heated to boiling with a fluorochrome solution containing 8.3 parts of CrzOa for 24 hours.

   Then the added insoluble constituents are filtered off, the chromium compound is separated off by adding common salt, filtered, washed with common salt solution and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines komplex gebundenes Chrom enthaltenden Azofa.rb- stoffes, dadurch gekennzeichnet, daB der durch Behandeln des Azofarbstoffes der For mel EMI0002.0014 mit sulfonierenden Mitteln bis zum Eintritt einer Sulfonsäuregruppe erhaltene monosulfo nierte Azofarbstoff mit chromabgebenden Mitteln behandelt wird. Die neue Chromverbindung stellt ein graues Pulver dar; PATENT CLAIM: A process for the production of an azo dye containing complexly bound chromium, characterized in that the azo dye of the formula EMI0002.0014 monosulfonated azo dye obtained with sulfonating agents until a sulfonic acid group occurs is treated with chromium donating agents. The new chromium compound is a gray powder; das sich in Wasser, in 10 % iger Sodalösung und in 10 % iger Natron lauge mit rotbrauner, in konzentrierter Schwefelsäure mit gelbbrauner Farbe löst. Sie färbt Leder in tiefbraunen Tönen von guten Echtheitseigenschaften. which dissolves in water, in 10% soda solution and in 10% sodium hydroxide solution with red-brown, in concentrated sulfuric acid with a yellow-brown color. It dyes leather in deep brown shades with good fastness properties.
CH200065D 1937-05-22 1937-05-22 Process for the preparation of an azo dye containing complexed chromium. CH200065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH200065T 1937-05-22

Publications (1)

Publication Number Publication Date
CH200065A true CH200065A (en) 1938-09-30

Family

ID=4442149

Family Applications (1)

Application Number Title Priority Date Filing Date
CH200065D CH200065A (en) 1937-05-22 1937-05-22 Process for the preparation of an azo dye containing complexed chromium.

Country Status (1)

Country Link
CH (1) CH200065A (en)

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