CH200673A - 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
CH200673A
CH200673A CH200673DA CH200673A CH 200673 A CH200673 A CH 200673A CH 200673D A CH200673D A CH 200673DA CH 200673 A CH200673 A CH 200673A
Authority
CH
Switzerland
Prior art keywords
chromium
azo dye
red
preparation
dye containing
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 CH200673A publication Critical patent/CH200673A/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

Landscapes

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

Description

  

  Verfahren zur Herstellung eines komplex gebundenes Chrom enthaltenden       Azofarbstoü'es.       Es wurde gefunden, dass ein komplex ge  bundenes Chrom enthaltender     Azofarbstoff     hergestellt werden kann, wenn der     Azofarb-          stoff    der Formel  
EMI0001.0005     
    mit chromabgebenden Mitteln behandelt     wird.     Der neue chromhaltige Farbstoff stellt  ein schwarzbraunes Pulver dar, das sich in  Wasser und in 10%iger     Sodalösung    mit  roter, in 10%iger Natronlauge mit gelb  stichigroter und in konzentrierter Schwefel  säure mit oranger Farbe löst. Er erzeugt auf  Wolle     sowie    auf Leder bordeauxrote Töne  von guten Echtheitseigenschaften.

      Der dem Verfahren als     Ausgangsstoff     dienende     Azofarbstoff    der     obigen    Formel  kann durch Kuppeln in alkalischer     Lösung     von     diazotierter        2-Amino-6-nitro-l-oxybenzol-          4-sulfonsäure    mit     Perinaphthindandion    her  gestellt werden.  



  <I>Beispiel:</I>  44,1 Teile des     Azofarbstoffes    aus     diazo-          tierter        2-Amino-6-nitro-l-oxybenzol-4-sulfon-          säure        und        Perinaphthindandion    werden in  900 Teilen Wasser gelöst und mit einer       Chromformiatlösung,    enthaltend 9,1 Teile       Cr203,    so lange zum Sieden erhitzt, bis der       Azofarbstoff        in        seine        Chromverbindung    über  gegangen ist.

   Dann filtriert man heiss, fällt  die Chromverbindung durch Beigabe von  Kochsalz aus, filtriert und trocknet.



  Process for the production 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
EMI0001.0005
    is treated with chromium-releasing agents. The new chromium-containing dye is a black-brown powder that dissolves in water and in 10% soda solution with red, in 10% sodium hydroxide solution with yellow tinge-red and in concentrated sulfuric acid with an orange color. It produces burgundy red tones with good fastness properties on wool and leather.

      The azo dye of the above formula which is used as the starting material for the process can be produced by coupling in an alkaline solution of diazotized 2-amino-6-nitro-1-oxybenzene-4-sulfonic acid with perinaphthindanedione.



  <I> Example: </I> 44.1 parts of the azo dye from diazotized 2-amino-6-nitro-1-oxybenzene-4-sulfonic acid and perinaphthindanedione are dissolved in 900 parts of water and containing a chromium formate solution 9.1 parts of Cr203, heated to the boil until the azo dye has changed to its chromium compound.

   Then it is filtered hot, the chromium compound is precipitated by adding sodium chloride, filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines komplex gebundenes Chrom enthaltenden Azofarb- stoffes, dadurch gekennzeichnet, dass der Azo- farbstoff der Formel EMI0002.0005 mit chromabgebenden Mitteln behandelt wird. PATENT CLAIM: Process for the production of an azo dye containing complexed chromium, characterized in that the azo dye of the formula EMI0002.0005 is treated with chromium-releasing agents. Der neue chromhaltige Farbstoff stellt ein schwarzbraunes Pulver dar, das sich in Wasser und in<B>10%</B> iger Sololösung mit roter, in 10%iger Natronlauge mit gelb stiehigroter und in konzentrierter Schwefel säure mit oranger Farbe löst. Er erzeugt auf Wolle sowie auf Leder bordeauxrote Töne von guten Echtheitseigenschaften. The new chromium-containing dye is a black-brown powder that dissolves in water and in <B> 10% </B> solo solution with red, in 10% sodium hydroxide solution with yellow, reddish-red and in concentrated sulfuric acid with an orange color. It produces burgundy red tones with good fastness properties on wool and leather.
CH200673D 1937-05-19 1937-05-19 Process for the preparation of an azo dye containing complexed chromium. CH200673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH200673T 1937-05-19

Publications (1)

Publication Number Publication Date
CH200673A true CH200673A (en) 1938-10-31

Family

ID=4442430

Family Applications (1)

Application Number Title Priority Date Filing Date
CH200673D CH200673A (en) 1937-05-19 1937-05-19 Process for the preparation of an azo dye containing complexed chromium.

Country Status (1)

Country Link
CH (1) CH200673A (en)

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