CH203023A - Process for the preparation of a tetrakisazo dye. - Google Patents

Process for the preparation of a tetrakisazo dye.

Info

Publication number
CH203023A
CH203023A CH203023DA CH203023A CH 203023 A CH203023 A CH 203023A CH 203023D A CH203023D A CH 203023DA CH 203023 A CH203023 A CH 203023A
Authority
CH
Switzerland
Prior art keywords
dye
copper
preparation
parts
tetrakisazo
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH203023A publication Critical patent/CH203023A/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
    • C09B45/01—Complex metal compounds of azo dyes characterised by the method of metallisation

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>166220.</B>    Verfahren zur Herstellung eines     Tetrakisazofarbstoffes.       Gegenstand des vorliegenden Patentes ist  ein     Verfallren    zur Herstellung eines kupfer-         haltigen-Tetrakisazofarbstoffes.    Das Verfah  ren     bessteht        darin"dass        man,den        Farbstoff,der     Formel  
EMI0001.0009     
    in -einem alkalischen<B>-</B> Medium mit einem  kupferabgebenden Mittel     behan#de,1t.    Der  neue Farbstoff stellt ein dunkles,     bronzie-          .rendee        Pulverdar,

      das     si-oll        leiolit    in     Waeser     mit     violettgrauer    Farbe löst.    <I>Beispiel:</I>  1200     Gewichtsteile    des     Tetrakisazofarb-          etoffes    der Formel  
EMI0001.0021     
      in 40<B>000</B> Teilen Wasser werden bei<B>85 '</B> mit  der alkalischen     Kupferlösung    aus<B>350</B>     Ge-          wielltsteilen    kristallisiertem.

   Kupfersulfat,  <B>500 -</B>     CrewieUtsteilen    Glycerin,<B>1500</B> Gewichts  teilen Wasser     und   <B>1000</B>     GewieUtsteilen        Na-          trönlauge    von     3,8'B6    versetzt. Die Mischung  wird 4     iStunden    bei<B>85-90'</B> gerührt. Dann  wird     -der    Farbstoff durch Zusatz von     Koch-          ealz        a..bgeso-hieden    und isoliert. Er stellt ein  ,dunkles,     bronzieründes    Pulver dar, das sich  leicht in Wasser mit     violettgrauer    Farbe löst.

    Er färbt die     Gellulosefmer    in     rotstichig-          grauem    Farbton von hoher     Lichte-chtheit    an.  



  In dem Beispiel wurde das Kupfer mit  tels     Glycerin    in dem alkalischen Medium in  Lösung gehalten. Man kann     natürlieli    an  <B>Z,</B>    Stelle von     Glycerin    viele andere Stoffe ver  wenden, die die Eigenschaft haben, mit       Cupryhydroxyd    in alkalischem Medium lös  liche Verbindungen einzugehen, wie zum  Beispiel die weinsauren     SaIze.    Man kann  auch auf die Auflösung des Kupfers     ver-          zieltten.    Bei     sehwerlöslichen    Farbstoffen ist  es oft vorteilhaft,     lAsungsmittel    wie     Pyridin     zuzusetzen.

   Anderseits ist es     oftgüns#tig"die          Kupferungsreaktion    in einer verdünnten       Salzlösung    vorzunehmen.



  Additional patent to main patent no. <B> 166220. </B> Process for the production of a tetrakisazo dye. The subject of the present patent is a decay for the production of a copper-containing tetrakisazo dye. The procedure consists in "that one, the dye, the formula
EMI0001.0009
    in -an alkaline <B> - </B> medium with a copper releasing agent, 1t. The new dye is a dark, bronzy.rendee powder,

      the si-oll leiolit dissolves in water with a violet-gray color. <I> Example: </I> 1200 parts by weight of the tetrakisazo colorant of the formula
EMI0001.0021
      in 40 <B> 000 </B> parts of water at <B> 85 '</B> with the alkaline copper solution from <B> 350 </B> corrugated parts are crystallized.

   Copper sulphate, <B> 500 </B> crew parts glycerine, <B> 1500 </B> parts by weight water and <B> 1000 </B> parts by weight sodium hydroxide solution of 3.8'B6 added. The mixture is stirred for 4 1 hours at 85-90 '. Then -the dye is a..bgeso-hieden by adding Koch- ealz and isolated. It is a dark, bronzing powder that easily dissolves in water with a purple-gray color.

    It stains the cellulose fibers in a reddish-gray shade of high luminosity.



  In the example the copper was kept in solution by means of glycerine in the alkaline medium. Of course, instead of glycerine, you can use many other substances which have the property of forming soluble compounds with cupry hydroxide in an alkaline medium, such as tartaric acid salts. One can also target the dissolution of the copper. In the case of visually soluble dyes, it is often advantageous to add solvents such as pyridine.

   On the other hand, it is often advantageous to carry out the copper plating reaction in a dilute salt solution.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines kupfer haltigen Tetrakioazofarbstoffes, dadurch, goe- kennzeichnet, dass man den Farbstoff der Formel EMI0002.0038 in einem alkalieclien Medium mit einem kupferabgebenden Mittel behandelt. Der neue Farbstoff stellt ein dunkles, bronzierendes Pulver dar, das sieh leicht in Wa#s,ser mit violettgrauer Farbe löst. <B> PATENT CLAIM: </B> Process for the preparation of a copper-containing tetrakioazo dye, characterized in that the dye of the formula EMI0002.0038 treated in an alkaline medium with a copper donor. The new dye is a dark, bronzing powder that easily dissolves in water with a purple-gray color.
CH203023D 1936-10-30 1937-10-12 Process for the preparation of a tetrakisazo dye. CH203023A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE203023X 1936-10-30
CH166220T 1937-10-12

Publications (1)

Publication Number Publication Date
CH203023A true CH203023A (en) 1939-02-15

Family

ID=25718245

Family Applications (1)

Application Number Title Priority Date Filing Date
CH203023D CH203023A (en) 1936-10-30 1937-10-12 Process for the preparation of a tetrakisazo dye.

Country Status (1)

Country Link
CH (1) CH203023A (en)

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