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CH293869A - 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
CH293869A
CH293869A CH293869DA CH293869A CH 293869 A CH293869 A CH 293869A CH 293869D A CH293869D A CH 293869DA CH 293869 A CH293869 A CH 293869A
Authority
CH
Switzerland
Prior art keywords
copper
brown
parts
acid
preparation
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 CH293869A publication Critical patent/CH293869A/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
    • C09B35/02—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—

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 261125.    Verfahren zur Herstellung eines kupferbaren     Polyazofarbstoffes.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines kupferbaren       Polyazofarbstoffes.    Das Verfahren ist da  durch gekennzeichnet, dass man 1     Mol    der       Tetrazoverbindung    von 1-     (3'-Amino-4'-oxy        -          benzoylamino)

      - 4-     amino    -     benzol-3-earbonsäur    e  einerseits mit 1     Mol        4-Acetylamino-acetessig-          säureanilid    und anderseits mit 1     Mol        2-Oxy-          naphthalin-6-sulfonsäure    kuppelt.

      Der erhaltene neue     Disazofarbstoff    stellt  ein     br        aunsehwarzes    Pulver dar, das sieh in  Wasser mit brauner und in     konz.    Schwefel  säure mit     olivbrauner    Farbe löst und Fasern  aus natürlicher oder regenerierter Zellulose       naehgekupfert    in braunen Tönen von sehr  guten     Echtheiten    anfärbt.

      <I>Beispiel:</I>    28,7 Teile     1-(3'-Amino-4'-oxy-benzoyl-          amino)-4-amino-ben7ol-3-earbonsäure    werden  in 400 Teilen Wasser mit 8 Teilen Natron  lauge kalt gelöst, mit 13,8 Teilen Natrium  nitrit vermischt und in der Kälte unter Rüh  ren auf 40 Teile     konz.    Salzsäure und 80 Teile  Wasser     aufgetropft,    die überschüssige Mine  ralsäure mit Soda abgestumpft und dann mit  23,4 Teilen     4-Acety        lamino-acetessigsäureani-          lid,    gelöst in 200 Teilen Wasser bei CTegen-    wart von 20 Teilen     Natriumbicarbonat,    zum  Zwischenprodukt vereinigt.

   Nach     beendigter     Kupplung wird alsdann eine wässerige Lo  sung von 22,4 Teilen     2-Oxy-naphthalin-6-sul-    ,       fonsä.ure,    20 Teilen Soda und 150 Teilen       Pyridin        hinzufliessen    gelassen. Die Kupplung  ist nach mehrstündigem Rühren bei Raum  temperatur beendigt, und der gebildete     Disazo-          farbstoff    der Formel  
EMI0001.0038     




  <B> Additional patent </B> to main patent no. 261125. Process for the production of a copperable polyazo dye. The present patent relates to a process for the preparation of a copperable polyazo dye. The process is characterized in that 1 mol of the tetrazo compound of 1- (3'-amino-4'-oxy - benzoylamino)

      - 4- amino-benzene-3-carboxylic acid coupled on the one hand with 1 mol of 4-acetylamino-acetic acid anilide and on the other hand with 1 mol of 2-oxynaphthalene-6-sulfonic acid.

      The new disazo dye obtained is a brownish-black powder, which looks in water with brown and in conc. Sulfuric acid with an olive-brown color dissolves and stains fibers made of natural or regenerated cellulose, sewn in copper, in brown shades of very good fastness properties.

      <I> Example: </I> 28.7 parts of 1- (3'-amino-4'-oxy-benzoyl-amino) -4-amino-ben7ol-3-carboxylic acid are dissolved in 400 parts of water with 8 parts of sodium hydroxide solution dissolved cold, mixed 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, the excess mineral acid blunted with soda and then combined with 23.4 parts of 4-acetylamino-acetic acid anilide, dissolved in 200 parts of water with 20 parts of sodium bicarbonate present, to form the intermediate.

   After the coupling has ended, an aqueous solution of 22.4 parts of 2-oxynaphthalene-6-sulphonic acid, 20 parts of soda and 150 parts of pyridine is allowed to flow in. The coupling is complete after several hours of stirring at room temperature, and the disazo dye formed of the formula
EMI0001.0038

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer baren Polyazofarbstoffes, dadurch gekenn- zeichnet, dass man 1 Mol der Tetrazoverbin- dung von 1-(3'-Amino-4'-oxy-benzoylamino)- 4-amino-benzol-3-carbonsäure einerseits mit 1 Mol 4-Acetylamino-acetessigsäureanilid und anderseits mit 1 Mol 2-Oxy-naphthalin-6-sul- fonsäure kuppelt. PATENT CLAIM: Process for producing a copper-colored polyazo dye, characterized in that 1 mol of the tetrazo compound of 1- (3'-amino-4'-oxy-benzoylamino) -4-aminobenzene-3-carboxylic acid is added on the one hand with 1 mole of 4-acetylamino-acetic acid anilide and on the other hand with 1 mole of 2-oxy-naphthalene-6-sulphonic acid. Der erhaltene neue Disazofarbstoff stellt ein braunschwarzes Pulver dar, das sieh in Wasser mit brauner und in konz. Sehwefe3- säure mit olivbrauner Farbe löst und Fasern aus natürlicher oder regenerierter Zellulose> nachgekupfert in braunen Tönen von sehr guten Eehtheiten anfärbt. The new disazo dye obtained is a brown-black powder that looks in water with brown and in conc. Sehwefe3- acid dissolves with an olive-brown color and stains fibers made of natural or regenerated cellulose> copper-plated in brown tones of very good integrity.
CH293869D 1948-08-06 1948-08-06 Process for the preparation of a copper-compatible polyazo dye. CH293869A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH293869T 1948-08-06
CH261125T 1948-08-06

Publications (1)

Publication Number Publication Date
CH293869A true CH293869A (en) 1953-10-15

Family

ID=25730383

Family Applications (1)

Application Number Title Priority Date Filing Date
CH293869D CH293869A (en) 1948-08-06 1948-08-06 Process for the preparation of a copper-compatible polyazo dye.

Country Status (1)

Country Link
CH (1) CH293869A (en)

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