CH324389A - Process for the production of a metallizable polyazo dye - Google Patents

Process for the production of a metallizable polyazo dye

Info

Publication number
CH324389A
CH324389A CH324389DA CH324389A CH 324389 A CH324389 A CH 324389A CH 324389D A CH324389D A CH 324389DA CH 324389 A CH324389 A CH 324389A
Authority
CH
Switzerland
Prior art keywords
metallizable
polyazo dye
production
mol
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Hans-Ruedi Dr Byland
Original Assignee
Sandoz 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 Sandoz Ag filed Critical Sandoz Ag
Publication of CH324389A publication Critical patent/CH324389A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/50—Tetrazo dyes
    • C09B35/52—Tetrazo dyes of the type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Description

  

  Verfahren zur Herstellung eines     metallisierbaren        Polyazofarbstoffes       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines     metalli-          sierbaren        Polyazofarbstoffes,    welches darin be  steht,     da.ss    man 1     Mol        tet.razotiertes        4,4'-Di-          i        amino        -3,3#-dimethoxy-1,

  1'-diphenvi        mit    2     Mol     einer durch saures Kuppeln von     diazotiertem          2-Amino-i-oxy-4-methylsulfonylbenzol    mit     2-          Pheny        lamino    - 5 -     oxynaphthalin    - 7 -     sulfonsäure     erhältlichen.     Aminomonoazoverbindung    kup  pelt.  



  Im nachfolgenden Beispiel bedeuten die  Teile Gewichtsteile.         Beispiel     24,4 Teile     4,4'-Diamino-3,3'-dimethoxy-1,1'-          diphenyl    werden mit 65 Teilen konzentrierter       Salzsäure    und 13,8 Teilen     Natriumnitrit    bei       0-5         tetrazotiert.    Den erhaltenen     Tetrazokör-          per    giesst man in     Gegenwart    von 200 Teilen  eines technischen     Pyridinbasengemisches    in  eine     natriumcarbonatalkalisehe,        wässrzge    Lö  sung aus 102,

  6 Teilen der     Aminomonoazover-          bindung,    die durch saures Kuppeln von 1     Mol          diazotiertem        2-Amino-l-oxy-4-methylsulfonyl-          benzol    mit. 1     Mol        2-Phenylamino-5-oxynaph-          thalin-7-sulfonsäure    erhalten wird. Es tritt  Kupplung zum     Tetrakisazofarbstoff    ein. Die  ser wird mit     Natriumchlorid    abgeschieden,    hierauf von der Lösung     abfiltriert    und ge  trocknet.  



  Der neue,     metallisierbare        Polyazofarbstoff     ist ein dunkles Pulver, das sich in Wasser mit       dunkelblauer    Farbe löst und Baumwolle und  Fasern aus regenerierter     Cellulose    nach dem  ein- oder     zweibadigen        Nachkupferungsverfah-          ren    in marineblauen Tönen von hervorragen  den Echtheitseigenschaften färbt.



  Process for the production of a metallizable polyazo dye The present patent relates to a process for the production of a metallizable polyazo dye, which consists in that 1 mol of tet.razotized 4,4'-di-amino -3,3 # - dimethoxy-1,

  1'-diphenvi with 2 mol of a by acid coupling of diazotized 2-amino-i-oxy-4-methylsulfonylbenzene with 2-phenylamino - 5 - oxynaphthalene - 7 - sulfonic acid obtainable. Aminomonoazo compound kup pelt.



  In the following example, the parts are parts by weight. Example 24.4 parts of 4,4'-diamino-3,3'-dimethoxy-1,1'-diphenyl are tetrazotized with 65 parts of concentrated hydrochloric acid and 13.8 parts of sodium nitrite at 0-5. The tetrazo body obtained is poured in the presence of 200 parts of a technical pyridine base mixture into a sodium carbonate alkaline, aqueous solution of 102,

  6 parts of the aminomonoazo compound obtained by acidic coupling of 1 mol of diazotized 2-amino-1-oxy-4-methylsulfonylbenzene with. 1 mole of 2-phenylamino-5-oxynaphthalene-7-sulfonic acid is obtained. Coupling to the tetrakisazo dye occurs. This water is precipitated with sodium chloride, then filtered off from the solution and dried.



  The new, metallizable polyazo dye is a dark powder that dissolves in water with a dark blue color and colors cotton and fibers made from regenerated cellulose in navy blue shades with excellent fastness properties using the one- or two-bath copper plating process.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines metalli- sierbaren Polyazofarbstoffes, dadurch gekenn zeichnet, dass man 1 Mol tetrazotiertes 4,4'-Di- , a.mino-3,3'-dimethoxy-1,1'-diphenyl mit 2 Mol einer durch saures Kuppeln von diazoti!ertem 2-Amino-l-oxy-4-methyl-sulfonylbenzol mit 2- Phenylamino-5-oxynaphthalin-7-sulfonsäure erhältlichen Aminomonoazoverbindung kup-. gelt. PATENT CLAIM Process for the production of a metallizable polyazo dye, characterized in that 1 mol of tetrazotized 4,4'-di-, a.mino-3,3'-dimethoxy-1,1'-diphenyl with 2 mol of an acid Coupling of diazotized 2-amino-1-oxy-4-methyl-sulfonylbenzene with 2-phenylamino-5-oxynaphthalene-7-sulfonic acid available aminomonoazo compound kup-. valid Der neue, metallisierbare Polyazofarbstoff ist ein dunkles Pulver, das sich in Wasser mit dunkelblauer Farbe löst und Baumwolle und Fasern aus regenerierter Cellulose nach dem ein- oder zweibadigen Nachkupferungsverfah- ren in marineblauen Tönen von hervorragen den Echtheitseigenschaften färbt. The new, metallizable polyazo dye is a dark powder that dissolves in water with a dark blue color and colors cotton and fibers made from regenerated cellulose in navy blue shades with excellent fastness properties using the one- or two-bath copper plating process.
CH324389D 1954-02-26 1954-02-26 Process for the production of a metallizable polyazo dye CH324389A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH310250T 1954-02-26
CH324389T 1954-02-26

Publications (1)

Publication Number Publication Date
CH324389A true CH324389A (en) 1957-09-15

Family

ID=25735692

Family Applications (1)

Application Number Title Priority Date Filing Date
CH324389D CH324389A (en) 1954-02-26 1954-02-26 Process for the production of a metallizable polyazo dye

Country Status (1)

Country Link
CH (1) CH324389A (en)

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