CH249009A - Process for the preparation of a metallizable disazo dye. - Google Patents

Process for the preparation of a metallizable disazo dye.

Info

Publication number
CH249009A
CH249009A CH249009DA CH249009A CH 249009 A CH249009 A CH 249009A CH 249009D A CH249009D A CH 249009DA CH 249009 A CH249009 A CH 249009A
Authority
CH
Switzerland
Prior art keywords
acid
oxynaphthalene
disazo dye
dye
mole
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 CH249009A publication Critical patent/CH249009A/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
    • C09B43/00—Preparation of azo dyes from other azo compounds

Landscapes

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

Description

  

  <B>Zusatzpatent</B>     zum    Hauptpatent Nr. 243336.         Verfahren    zur Herstellung eines     metallisierbaren        Disazofarbstoffes.       Das vorliegende Patent betrifft     ein    Ver  fahren zur Herstellung eines neuen     metalli-          sierba.ren        Disazofarbstoffes    und ist dadurch  gekennzeichnet,     dass    man den Kupferkom  plex des     Disazofarbatoffes    aus 1     Mol        tetrazo-          tierter        3,3'-Dimethoxy-4,4'-diaminodiphenyl,     1.

       Mol        1-Oxynaphthalin-3,6-disulfonsäure    und  1     Mol        2-Phenylamino-5-oxynaphthalin-7-sul-          fonsäure    mit konzentrierter Salzsäure     ent-          kupf        ert.     



  <I>Beispiel:</I>  15 Teile der komplexen Kupferverbin  dung des     Dis.azofarbstoffes,    aus 1     Mol          tetrazotierter        3,3'-        Dimethoxy    - 4,4'-     diamino-          diphenyl,    1     Mol    1-     Oxynaphthalin    -<B>3,6</B> -     di-          sulfonsäure    und 1.

       Mol        2-Phenylamino-5-          oxynaphthalin-7-isulfonsäure    werden in etwa  80 Teile     konzentrierte    Salzsäure bei Raum  temperatur     gerührt.    Nach     1/.,    Stunde wird  filtriert und mit 10%iger Sole     na.ch-          gewaschen,    bis das Filtrat nur noch schwach  kongosauer reagiert. Der     getrocknete    Farb-         stoff    stellt ein schwarzes Pulver dar, welches  sich     in.    Wasser mit violetter und in konzen  trierter Schwefelsäure mit     grünlichblauer     Farbe löst.

   Der neue Farbstoff färbt Zell  wolle     naehgekupfert    in echten blauen Tö  nen an.



  <B> Additional patent </B> to main patent no. 243336. Process for the production of a metallizable disazo dye. The present patent relates to a process for the production of a new metallized disazo dye and is characterized in that the copper complex of the disazo carbate is obtained from 1 mol of tetrazole 3,3'-dimethoxy-4,4'-diaminodiphenyl, 1 .

       1 mole of 1-oxynaphthalene-3,6-disulfonic acid and 1 mole of 2-phenylamino-5-oxynaphthalene-7-sulfonic acid were decoppered with concentrated hydrochloric acid.



  <I> Example: </I> 15 parts of the complex copper compound of the disazo dye, from 1 mol of tetrazotized 3,3'-dimethoxy - 4,4'-diamino-diphenyl, 1 mol of 1-oxynaphthalene - <B> 3 , 6 </B> - disulfonic acid and 1.

       Mol of 2-phenylamino-5-oxynaphthalene-7-isulfonic acid are stirred in about 80 parts of concentrated hydrochloric acid at room temperature. After 1 /., Hour is filtered and washed with 10% brine Na.ch- until the filtrate only reacts slightly acidic to the Congo. The dried dye is a black powder which dissolves in water with a violet color and in concentrated sulfuric acid with a greenish-blue color.

   The new dye stains cell wool, sewn copper, in real blue tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen metallisierbaren Disazofarbs.toffes, dadurch gekennzeichnet, dass man den Kupferkom plex des Disazofarbstoffes aus 1 Mol tetrazotierter 3,3'-Dimethoxy-4,4'-diamino- diphenyl, 1 Mol 1-Oxynaphthalin-3, PATENT CLAIM: Process for the production of a new metallizable Disazofarbs.toffes, characterized in that the copper complex of the disazo dye from 1 mole of tetrazotized 3,3'-dimethoxy-4,4'-diamino-diphenyl, 1 mole of 1-oxynaphthalene-3, 6-di- sulfonsäure und 1 Mol 2-Phenylamino-5- oxynaphthalin-7-s.ulfonsäure mit konzentrier ter Salzsäure entkupfert. Der neue Farbstoff stellt ein schwarzes Pulver dar, welohes sich in Wasser mit violetter und in. konzentrierter Schwefelsäure mit grünlichblauer Farbe löst. Er färbt Zell wolle nachgekupfert in echten blauen. Tö nen an. 6-disulphonic acid and 1 mol of 2-phenylamino-5-oxynaphthalene-7-s-sulphonic acid are decoppered with concentrated hydrochloric acid. The new dye is a black powder which dissolves in water with a violet color and in concentrated sulfuric acid with a greenish-blue color. He dyes the re-coppered cell wool in real blue. Tones.
CH249009D 1945-02-12 1945-02-12 Process for the preparation of a metallizable disazo dye. CH249009A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH243336T 1945-02-12
CH249009T 1945-02-12

Publications (1)

Publication Number Publication Date
CH249009A true CH249009A (en) 1947-05-31

Family

ID=25728815

Family Applications (1)

Application Number Title Priority Date Filing Date
CH249009D CH249009A (en) 1945-02-12 1945-02-12 Process for the preparation of a metallizable disazo dye.

Country Status (1)

Country Link
CH (1) CH249009A (en)

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