CH306545A - Process for the preparation of a metal-containing azo dye. - Google Patents

Process for the preparation of a metal-containing azo dye.

Info

Publication number
CH306545A
CH306545A CH306545DA CH306545A CH 306545 A CH306545 A CH 306545A CH 306545D A CH306545D A CH 306545DA CH 306545 A CH306545 A CH 306545A
Authority
CH
Switzerland
Prior art keywords
cobalt
azo dye
containing azo
preparation
metal
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag Sandoz
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 Sandoz filed Critical Ag Sandoz
Publication of CH306545A publication Critical patent/CH306545A/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
    • C09B45/20—Monoazo compounds containing cobalt

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

Description

  

      Verfahren        zur        Herstellung        eines        metallhaltigen        Azofarbstoffes.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines     metall-          lialt.igen        Azofarbstoffes,    welches darin be  steht,

   dass man 1     Mol        diazotiertes        1-Oxy-2-          aniino-4-nitro-6-chlorbenzol    mit 1     Mol        1-Oxy-          '?    -     aeetylamino    - 4 -     methylbenzol    kuppelt und  die erhaltene     Monoazoverbindung    mit einem       kobaltabgebenden    Mittel behandelt.  



  Im nachfolgenden Beispiel bedeuten die  Teile Gewichtsteile.  



  <I>Beispiel:</I>       4-    Teile der     dareh    Kuppeln von     diazotier-          t.em    1. -     Oxy-2-amino-4-nitro    - 6 -     ehlorbenzol    mit       1.-Oxy        -2-aeetylamino-4-methylbenzol        erhält-          lielien        Monoazoverbindung    werden bei 70  in  200 Teilen Wasser unter Zugabe von N     atrium-          hydroxy    d gelöst.

   Man setzt der Lösung ein       Gemiseh    aus 37 Teilen kristallisiertem     Ko-          baltosulfat,    0,76 Teilen     Weinsäure,    4,7  Teilen     30o/oiger        Natriumhydroxydlösung    und  <B>1.5</B> Teilen     Wasser        zii    und rührt das Ganze bei  70  so lange, bis die     Metallisierung    beendet, ist.  Die kolloidale Suspension der     Kobaltkomplex-          verbindung    wird mit     Natriumchlorid    versetzt.

    Man filtriert den vollständig     ausgesehiedenen          Monoazofarbstoff    bei 20  ab. Der feuchte       R.üekstand    wird anschliessend 24 Stunden lang    in verdünnter     Natriumhydroxycilösun-#@H     Wert =10,5)     digeriert,    hierauf     abfiltriert    und  im Vakuum bei 70      getroeknet.     



  Der neue     kobalthaltige        Azofarbstoff    ist  ein in Wasser mit     brauner    Farbe lösliches  schwarzes Pulver,     welehes    olle, Seide und       synthetisehe        Poly        amidfasern    aus neutralem  Bad in walk-, wasch- und     lichteehten    braunen  Tönen färbt.



      Process for the preparation of a metal-containing azo dye. The subject of the present patent is a process for the production of a metallic lialt.igen azo dye, which is

   that 1 mole of diazotized 1-oxy-2-aniino-4-nitro-6-chlorobenzene with 1 mole of 1-oxy- '? - aeetylamino - 4 - methylbenzene couples and the monoazo compound obtained is treated with a cobalt donor.



  In the following example, the parts are parts by weight.



  <I> Example: </I> 4- parts of the diazotized domes of 1. - Oxy-2-amino-4-nitro-6-chlorobenzene with 1.-Oxy -2-aetylamino-4-methylbenzene The monoazo compounds available are dissolved at 70 in 200 parts of water with the addition of sodium hydroxide.

   A mixture of 37 parts of crystallized cobalt sulfate, 0.76 parts of tartaric acid, 4.7 parts of 30% sodium hydroxide solution and 1.5 parts of water is added to the solution and the whole is stirred at 70 until the metallization is finished. Sodium chloride is added to the colloidal suspension of the cobalt complex compound.

    The completely precipitated monoazo dye is filtered off at 20. The moist residue is then digested for 24 hours in dilute sodium hydroxide solution - # @ H value = 10.5), then filtered off and dried in vacuo at 70.



  The new cobalt-containing azo dye is a black powder that is soluble in water with a brown color, which dyes olle, silk and synthetic polyamide fibers from a neutral bath in milled, washable and light brown tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines metall haltigen Azofarbstoffes, dadurch gekennzeich net, dass man 1 Mol diazotiertes 1-Oxy =2- amino-4-nitro-6-ehlorbenzol mit 1 Mol 1-Oxy- 2 - acetylamino - 4 - methylbenzol kuppelt und die erhaltene Monoazoverbindung mit einem kobaltabgebenden Mittel behandelt. Der neue kobalthaltige Azofarbstoff ist. PATENT CLAIM: Process for the preparation of a metal-containing azo dye, characterized in that 1 mol of diazotized 1-oxy = 2-amino-4-nitro-6-chlorobenzene is coupled with 1 mol of 1-oxy-2-acetylamino-4-methylbenzene and the resulting monoazo compound is treated with a cobalt donor. The new cobalt-containing azo dye is. ein in Wasser mit brauner Farbe lösliches Pulver, welches Wolle, Seide und synthetische Polyamidfasern aus neutralem Bad in walk-, waseh- und lichteehten braunen Tönen färbt. UNTERANSPRUCH Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man als kobaltabgebendes Mittel Kobaltosulfat wählt. a powder that is soluble in water with a brown color, which dyes wool, silk and synthetic polyamide fibers from a neutral bath in whipped, washed and light brown tones. SUBSTANTIAL CLAIM Process according to patent claim, characterized in that cobalt sulphate is chosen as the cobalt releasing agent.
CH306545D 1952-03-26 1952-03-26 Process for the preparation of a metal-containing azo dye. CH306545A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH306545T 1952-03-26
CH303283T 1952-08-22

Publications (1)

Publication Number Publication Date
CH306545A true CH306545A (en) 1955-04-15

Family

ID=25734632

Family Applications (1)

Application Number Title Priority Date Filing Date
CH306545D CH306545A (en) 1952-03-26 1952-03-26 Process for the preparation of a metal-containing azo dye.

Country Status (1)

Country Link
CH (1) CH306545A (en)

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