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CH246187A - Process for the production of a metallizable polyazo dye. - Google Patents

Process for the production of a metallizable polyazo dye.

Info

Publication number
CH246187A
CH246187A CH246187DA CH246187A CH 246187 A CH246187 A CH 246187A CH 246187D A CH246187D A CH 246187DA CH 246187 A CH246187 A CH 246187A
Authority
CH
Switzerland
Prior art keywords
mol
dye
production
acid
metallizable
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 CH246187A publication Critical patent/CH246187A/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
    • C09B35/38—Trisazo dyes ot the type
    • C09B35/40—Trisazo dyes ot the type the component K being a dihydroxy or polyhydroxy compound

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 242845.         Verfahren    zur Herstellung     eines        metallisierbaren"        Polyazofarbstoffes.       Das vorliegende Patent betrifft     ein    Ver  fahren zur Herstellung eines braunen     Poly-          azofarbstoffes    und ist dadurch gekennzeich  net, dass man 1     Mol        Resorcin,    1     Mol    der Ver  bindung,

   erhältlich durch Verseifen und       Diazotieren    des Farbstoffes aus 1     Mol        diazo-          tierter        Metanilsäure    und 1     Mol        1-Acetamino-          2-oxybenzol    und 1     Mol    der aus 1     Mol        tetra-          zotiertem        4,4'-Diaminobenzanilid    und 1     Mol          Salicylsäure    erhältlichen     Zwischenverbin-          dung    aufeinander einwirken lässt.

    



  <I>Beispiel:</I>  17,3 g     Metanilsäure    werden wie üblich       diazotiert    und die     Diazoverbindung    mit einer  Lösung von 15,1 g     1-Acetamino-2-oxybenzol,     13,3 g 30%iger Natronlauge und Wasser in  Gegenwart von Soda gekuppelt. Der Farb  stoff wird mit Salzsäure abgeschieden und  filtriert. Er wird durch Erwärmen mit ver  dünnter Natronlauge verseift, mit Salzsäure  abgeschieden und filtriert.  



  Er besitzt mutmasslich die Formel  
EMI0001.0033     
    Zur     Weit(.ldiazotierung    wird der Farbstoff  in Wasser     und    Natronlauge gelöst, mit 7 g       Natriumnitrit    versetzt und mit Salzsäure  angesäuert. Nach beendeter     Diazotierung     kuppelt man mit einer Lösung von 11 g       Resorein    und Wasser in Gegenwart von Soda.    Der     Disazofarbstoff    wird mit Salzsäure ab  geschieden und filtriert.

   Er wird in Wasser  und Soda gelöst     und    mit der in üblicher  Weise hergestellten     Zwischenverbindung    aus  22,7 g     4,4'-Diaminobenzanilid    und 13,8 g       Salicylsäure    gekuppelt. Der     Tetrakisazofarb-          stoff    wird in der Wärme mit Kochsalz ab  geschieden, filtriert und getrocknet.  



  Der neue Farbstoff stellt ein dunkles  Pulver dar, das Baumwolle und regenerierte       Cellulose    in     orangebraunen    Tönen färbt. Mit  Kupfersulfat nachbehandelt, werden die Fär  bungen in der Wasch-, Licht-, Säure-     und          Alkaliechtheit    erheblich verbessert.



      Additional patent to the main patent No. 242845. Process for the production of a metallizable "polyazo dye. The present patent relates to a process for the production of a brown polyazo dye and is characterized in that 1 mole of resorcinol, 1 mole of the compound,

   obtainable by saponifying and diazotizing the dye from 1 mole of diazotized metanilic acid and 1 mole of 1-acetamino-2-oxybenzene and 1 mole of the intermediate compound obtainable from 1 mole of tetrazotized 4,4'-diaminobenzanilide and 1 mole of salicylic acid leaves.

    



  <I> Example: </I> 17.3 g metanilic acid are diazotized as usual and the diazo compound with a solution of 15.1 g 1-acetamino-2-oxybenzene, 13.3 g 30% sodium hydroxide solution and water in the presence of Soda coupled. The dye is deposited with hydrochloric acid and filtered. It is saponified by heating with dilute sodium hydroxide solution, precipitated with hydrochloric acid and filtered.



  He presumably has the formula
EMI0001.0033
    For further (.ldiazotization, the dye is dissolved in water and sodium hydroxide solution, mixed with 7 g of sodium nitrite and acidified with hydrochloric acid. When the diazotization is complete, it is coupled with a solution of 11 g of resorein and water in the presence of soda. The disazo dye is separated off with hydrochloric acid and filtered.

   It is dissolved in water and soda and coupled with the intermediate compound prepared in the customary manner from 22.7 g of 4,4'-diaminobenzanilide and 13.8 g of salicylic acid. The tetrakisazo dye is separated in the warm with common salt, filtered and dried.



  The new dye is a dark powder that dyes cotton and regenerated cellulose in orange-brown tones. Post-treated with copper sulfate, the dyeings are considerably improved in terms of washing, light, acid and alkali fastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines braunen Polyazofarbstoffes, dadurch gekennzeichnet, dass man 1 Mol Resorcin, 1 Mol der Ver- bindung, PATENT CLAIM: Process for the production of a brown polyazo dye, characterized in that 1 mol of resorcinol, 1 mol of the compound, erhältlich durch Verseifen und Diazotieren des Farbstoffes aus 1 Mol diazo- tierter Metanilsäure und 1 Mol 1-Acetamino- 2-oxybenzol und 1 Mol der aus 1 Mol tetra- zotiertem 4, obtainable by saponification and diazotization of the dye from 1 mol of diazo-tated metanilic acid and 1 mol of 1-acetamino-2-oxybenzene and 1 mol of 4 from 1 mol of tetrazotized, 4'-Diaminobenzanilid und 1 Mol Salicylsäure erhältlichen Zwischenverbin dung aufeinander einwirken lässt. Der neue Farbstoff stellt ein dunkles Pulver dar, das Baumwolle und regenerierte Cellulose in orangebraunen Tönen färbt. Mit Kupfersulfat nachbehandelt, werden die Fär bungen in der Wasch-, Licht-, Säure- und Alkaliechtheit erheblich verbessert. 4'-diaminobenzanilide and 1 mol of salicylic acid available intermediate compound can act on each other. The new dye is a dark powder that dyes cotton and regenerated cellulose in orange-brown tones. Post-treated with copper sulphate, the colors are considerably improved in terms of washing, light, acid and alkali fastness.
CH246187D 1945-04-16 1945-04-16 Process for the production of a metallizable polyazo dye. CH246187A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH242845T 1945-04-16
CH246187T 1945-04-16

Publications (1)

Publication Number Publication Date
CH246187A true CH246187A (en) 1946-12-15

Family

ID=25728763

Family Applications (1)

Application Number Title Priority Date Filing Date
CH246187D CH246187A (en) 1945-04-16 1945-04-16 Process for the production of a metallizable polyazo dye.

Country Status (1)

Country Link
CH (1) CH246187A (en)

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