CH246186A - Process for the production of a metallizable polyazo dye. - Google Patents

Process for the production of a metallizable polyazo dye.

Info

Publication number
CH246186A
CH246186A CH246186DA CH246186A CH 246186 A CH246186 A CH 246186A CH 246186D A CH246186D A CH 246186DA CH 246186 A CH246186 A CH 246186A
Authority
CH
Switzerland
Prior art keywords
mole
dye
mol
acid
production
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 CH246186A publication Critical patent/CH246186A/en

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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        Polyazofarbatoffes.       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        Sulfauilsäure    und 1     Mol        1-Acetamino-          2-oxybenzol    und 1     Mol    der aus 1     Mol        tetrazo-          tiertem        4,4'-Diaminobenzanilid    und 1     Mol          Salicylsäure    erhältlichen Zwischenverbindung  aufeinander einwirken lässt.  



  <I>Beispiel:</I>  17,3 g     Sulfanilsäure    werden wie üblich       diazotiert    und 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 Farbstoff wird durch  Salzsäure abgeschieden. Er wird durch Er  wärmen mit     verdünnter    Schwefelsäure ver  seift. Das     Verseifungsprodukt    wird filtriert  und mit Wasser gewaschen. Es besitzt mut  masslich die Formel  
EMI0001.0031     
    Zur     Weiterdiazotierung    wird der     Monoazo-          farbstoff    in Wasser und Natronlauge gelöst.

    Man gibt eine Lösung von 7 g     Natriumnitrit     zu und lässt die Lösung unter Kühlung und  gutem Rühren in Salzsäure einfliessen. Nach  beendeter     Diazotierung    kuppelt man mit  einer Lösung von 11 g     Resorcin    und Wasser  in Gegenwart von Soda. Der     @isazofarbstoff       wird mit Salzsäure abgeschieden und fil  triert. Er wird in Wasser und Soda gelöst  und mit der in üblicher Weise hergestellten  Zwischenverbindung aus 22,7 g     4,4'-Diamino-          benzanilid    und 13,8 g     Salicylsäure    in Gegen  wart von Soda gekuppelt.

   Der     Tetrakisazo-          farbstoff    wird in der Wärme unter Zusatz  von Kochsalz abgeschieden, filtriert und ge  trocknet.  



  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 main patent no. 242845. Process for the production of a metallizable polyazo-carbate. The present patent relates to a process for the production of a brown poly azo 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 sulfauilic 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.



  <I> Example: </I> 17.3 g of sulfanilic acid are diazotized as usual and with a solution of 15.1 g of 1-acetamino-2-oxybenzene, 13.3 g of 30% sodium hydroxide solution and water in the presence of soda coupled. The dye is deposited by hydrochloric acid. It is soaped by warming it with dilute sulfuric acid. The saponification product is filtered and washed with water. It presumably has the formula
EMI0001.0031
    For further diazotization, the monoazo dye is dissolved in water and sodium hydroxide solution.

    A solution of 7 g of sodium nitrite is added and the solution is allowed to flow into hydrochloric acid while cooling and stirring well. When the diazotization is complete, coupling is carried out with a solution of 11 g of resorcinol and water in the presence of soda. The @isazo dye is deposited with hydrochloric acid and filtered. It is dissolved in water and soda and coupled with the intermediate compound prepared in the usual manner from 22.7 g of 4,4'-diamino benzanilide and 13.8 g of salicylic acid in the presence of soda.

   The tetrakisazo dye is deposited in the warm with the addition of 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 sulphate, the colors 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 Verbin dung, erhältlich durch Verseifen und Diazo- tieren des Farbstoffes aus 1 Mol diazotierter Sulfanilsäure und 1 Mol 1-Acetamino-2-ogy- benzol und 1 Mol der aus 1 Mol tetrazotier- PATENT CLAIM: Process for the preparation of a brown polyazo dye, characterized in that 1 mole of resorcinol, 1 mole of the compound obtainable by saponification and diazotization of the dye from 1 mole of diazotized sulfanilic acid and 1 mole of 1-acetamino-2-ogy-benzene and 1 mol of the tetrazotized from 1 mol tem 4,4'-Diaminobenzanilid und 1 Mol Sali- cylsäure erhältlichen Zwischenverbindung 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. tem 4,4'-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.
CH246186D 1945-04-16 1945-04-16 Process for the production of a metallizable polyazo dye. CH246186A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH242845T 1945-04-16
CH246186T 1945-04-16

Publications (1)

Publication Number Publication Date
CH246186A true CH246186A (en) 1946-12-15

Family

ID=25728762

Family Applications (1)

Application Number Title Priority Date Filing Date
CH246186D CH246186A (en) 1945-04-16 1945-04-16 Process for the production of a metallizable polyazo dye.

Country Status (1)

Country Link
CH (1) CH246186A (en)

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