CH265722A - Process for the preparation of a copper-compatible polyazo dye. - Google Patents

Process for the preparation of a copper-compatible polyazo dye.

Info

Publication number
CH265722A
CH265722A CH265722DA CH265722A CH 265722 A CH265722 A CH 265722A CH 265722D A CH265722D A CH 265722DA CH 265722 A CH265722 A CH 265722A
Authority
CH
Switzerland
Prior art keywords
copper
amino
preparation
compatible
polyazo dye
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 J R Geigy filed Critical Ag J R Geigy
Publication of CH265722A publication Critical patent/CH265722A/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
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/28—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—

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

Description

  

      Zusatzpatent    zum Hauptpatent     Nr.    2ö1125.    <B>Verfahren zur Herstellung eines kupferbaren</B>     Polyazofarbstoffes.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines kupferbaren       Polyazofarbstoffes.    Das Verfahren ist da  durch gekennzeichnet,     da13    man 1     Mol    der       Tetrazoverbindung    von     1-(3'-Amino-4'-oxy-          benzoylamino)        -4-amino-benzol-3-carl)onsäure     mit 2     Mol    1-     (4'-Amino-phenyl)

          -3-meth3-1-5-          pyrazolon    kuppelt.    <I>Beispiel:</I>    28,7 Teile 1-     (3'-Amino-4'-oxy-benzoyl-          amino)        -4-amino-benzol-3-carbonsäure    werden  in 400 Teilen Wasser mit 8 Teilen Natronlauge  kalt gelöst, mit 13,8 Teilen     Natriumnitrit    ver  mischt und in der Kälte unter Rühren auf  40 Teile     konz.    Salzsäure und 80 Teile Wasser       aufgetropft.    Nach dein Abstumpfen der     über-          sehüssigen        =Mineralsäure    mit Soda vereinigt  
EMI0001.0024     
    wird mit Kochsalz abgeschieden,

       abfiltriert    und getrocknet.    Der erhaltene neue     Disazofarbstoff    stellt  ein dunkelbraunes Pulver dar, das sich in  Wasser mit gelbbrauner und in     konz.    Schwe  felsäure mit gelber Farbe löst und Fasern  aus natürlicher oder regenerierter     Cellulose          nachgekupfert    in gelbbraunen Tönen anfärbt,  welche vorzügliche     Echtheiten        aufweisen.       man die     Tetrazoverbindung    mit einer alkali  schen Lösung von 37,8 Teilen     1-(4'-Amino-          phenyl)-3-methyl-5-pyrazolon    in 800 Teilen  Wasser und 20 Teilen Soda.

   Die Kupplung  tritt sofort ein und nach mehreren Stunden.  Rühren bei Zimmertemperatur ist keine     Di-          azoreaktion    mehr nachweisbar. Der erhaltene  Farbstoff von der Formel



      Additional patent to main patent No. 2ö1125. <B> Process for the production of a copperable </B> polyazo dye. The present patent relates to a process for the preparation of a copperable polyazo dye. The process is characterized in that 1 mole of the tetrazo compound of 1- (3'-amino-4'-oxybenzoylamino) -4-aminobenzene-3-carl) onic acid is mixed with 2 moles of 1- (4'- Aminophenyl)

          -3-meth3-1-5- pyrazolone couples. <I> Example: </I> 28.7 parts of 1- (3'-amino-4'-oxy-benzoyl-amino) -4-amino-benzene-3-carboxylic acid are cold in 400 parts of water with 8 parts of sodium hydroxide solution dissolved, mixed ver with 13.8 parts of sodium nitrite and concentrated in the cold with stirring to 40 parts. Hydrochloric acid and 80 parts of water were added dropwise. After blunting the excess mineral acid, combined with soda
EMI0001.0024
    is separated with common salt,

       filtered off and dried. The new disazo dye obtained is a dark brown powder, which in water with yellow-brown and in conc. Sulfur acid dissolves with a yellow color and stains fibers made from natural or regenerated cellulose after copper-plating in yellow-brown tones, which have excellent fastness properties. the tetrazo compound with an alkaline solution of 37.8 parts of 1- (4'-aminophenyl) -3-methyl-5-pyrazolone in 800 parts of water and 20 parts of soda.

   The coupling occurs immediately and after several hours. Stirring at room temperature no longer shows any diazo reaction. The obtained dye of the formula

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines kupfer baren Polyazofarbstoffes, dadurch gekenn zeichnet, dass man 1 Mol der Tetrazoverbin- diung von 1-(3'-Amino-4'-ox5=-benzoylamino)- 4-amino-benzol-3-carbonsäure mit 2 liol 1-(4' Amino-phenyl)-3-methyl-5-pyTazolon kuppelt. PATENT CLAIM A process for the production of a copper-free polyazo dye, characterized in that 1 mol of the tetrazo compound of 1- (3'-amino-4'-ox5 = -benzoylamino) -4-aminobenzene-3-carboxylic acid with 2 liol 1- (4 'Amino-phenyl) -3-methyl-5-pyTazolone couples. her erhaltene neue Disazofarbstoff stellt ein dunkelbraunes Pulver dar, das sich in Wasser mit gelbbrauner und in konz. Schwe felsäure mit gelber Farbe löst und Fasern aus natürlicher oder regenerierter Cellulose nachgektipfert in gelbbraunen Tönen anfärbt, welche vorzügliche Echtheiten aufweisen. new disazo dye obtained ago is a dark brown powder that dissolves in water with yellowish brown and in conc. Sulfur acid dissolves with a yellow color and dyes fibers made of natural or regenerated cellulose in yellow-brown tones, which have excellent fastness properties.
CH265722D 1947-09-15 1947-09-15 Process for the preparation of a copper-compatible polyazo dye. CH265722A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH265722T 1947-09-15
CH261125T 1948-08-06

Publications (1)

Publication Number Publication Date
CH265722A true CH265722A (en) 1949-12-15

Family

ID=25730366

Family Applications (1)

Application Number Title Priority Date Filing Date
CH265722D CH265722A (en) 1947-09-15 1947-09-15 Process for the preparation of a copper-compatible polyazo dye.

Country Status (1)

Country Link
CH (1) CH265722A (en)

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