CH293863A - 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
CH293863A
CH293863A CH293863DA CH293863A CH 293863 A CH293863 A CH 293863A CH 293863D A CH293863D A CH 293863DA CH 293863 A CH293863 A CH 293863A
Authority
CH
Switzerland
Prior art keywords
copper
amino
parts
mol
oxy
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 CH293863A publication Critical patent/CH293863A/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

  

  <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-     aminö    -     benzol-3-carbonsäure     einerseits mit 1     Mol        1-(4'-Amino-phenyl)-3-          methyl.-5-pyrazolon    und anderseits mit 1     Mol          2-Acetyl.amino-6-oxy    -     naphthalin-8-s        ulfonsäure     kuppelt..  



  Der erhaltene neue     Disazofarbstoff    stellt  ein dunkelbraunes Pulver dar, welches sich  in Wasser und in     konz.    Schwefelsäure mit rot  stichig brauner Farbe löst     und    färbt Fasern  aus Baumwolle und Zellwolle     nachgekupfert     in braunen Tönen von sehr guter Nass- und  Lichtechtheit..

      <I>Beispiel:</I>  28,7 Teile     1-(3'-Amino-4'-oxy        -benzoyl-          amino)-4-amino-benzol-3-carbonsäure    werden  in 400 Teilen Nasser 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 dem Abstumpfen der über  schüssigen Mineralsäure mit     Natriumbicar-          bonat    vereinigt man die     Tetrazov        erbindung     mit 18,9 Teilen     1-(4'-Amino-phenyl)

  -3-methyl-          5-pyrazolon,    gelöst in     200    Teilen Wasser und  20 Teilen     Natriumbiearbonat.    Zum Zwischen  produkt     lä.sst    man alsdann eine wässerige Lö  sung von 28,1 Teilen     2-Acetylamino-6-oxy-          naphthalin-8-sulfonsäure,        20    Teilen Soda und  150 Teilen     Py        ridin    fliessen.

   Nach mehrstün  digem Rühren bei Raumtemperatur wird der  gebildete     Disazofarbstoff    der Formel  
EMI0001.0044     
         finit    Salz gefällt,     abfiltriert    und     getrocknet.  



  <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'-oxybenzoylamino) -4-amino-benzene-3-carboxylic acid on the one hand with 1 mol of 1- (4'-aminophenyl) -3-methyl.-5 -pyrazolon and on the other hand with 1 mol of 2-acetyl.amino-6-oxy-naphthalene-8-sulfonic acid.



  The new disazo dye obtained is a dark brown powder which is dissolved in water and in conc. Sulfuric acid with a red, tinged brown color dissolves and dyes fibers made of cotton and staple viscose after copper in brown shades of very good wet and light fastness.

      <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 the excess mineral acid has been blunted with sodium bicarbonate, the Tetrazov compound is combined with 18.9 parts of 1- (4'-aminophenyl)

  -3-methyl-5-pyrazolone, dissolved in 200 parts of water and 20 parts of sodium carbonate. An aqueous solution of 28.1 parts of 2-acetylamino-6-oxynaphthalene-8-sulfonic acid, 20 parts of soda and 150 parts of pyridine is then allowed to flow into the intermediate product.

   After several hours of stirring at room temperature, the disazo dye formed is of the formula
EMI0001.0044
         finite salt precipitated, filtered off and dried.

Claims (1)

PATF@V TANSPRU CII Verfahren zur Herstellung eines kupfer baren Polyazofarbstoffes, dadureh gekenn- zeiehnet, dass man 1 Mol der Tetrazov erbin- dung von 1-(3'-Amino-4'-oxy-benzoylamino)- 4-amino-ben7ol-3-earbonsäure einerseits mit 1 Mol 1-(4'-Amino-phenyl) PATF @ V TANSPRU CII Process for the production of a copper-colored polyazo dye, which is marked that 1 mol of the Tetrazov compound of 1- (3'-amino-4'-oxy-benzoylamino) -4-amino-ben7ol- 3-carboxylic acid on the one hand with 1 mol of 1- (4'-aminophenyl) -3-methyl-5-pyrazo- lon und anderseits mit 1 Mol 2-Aeetylamino- 6-oxy-naphthalin-ä-sulfonsäure kuppelt. Der erhaltene neue Disazofarbstoff stellt ein dunkelbraunes Pulver dar, welehes sieh in Wasser und in konz. Sehwefelsäure mit. rot- st.iehig brauner Farbe löst und färbt Fasern aus Baumwolle und Zellwolle naehgekupfert in braunen Tönen von sehr guter Nass- und Liehteehtheit. -3-methyl-5-pyrazolone and on the other hand with 1 mole of 2-ethylamino-6-oxy-naphthalene-α-sulfonic acid. The new disazo dye obtained is a dark brown powder which can be seen in water and in conc. Sulfuric acid with. The red-brown color dissolves and dyes fibers made of cotton and rayon, sewn with copper, in brown tones of very good wet and light resistance.
CH293863D 1948-08-06 1948-08-06 Process for the preparation of a copper-compatible polyazo dye. CH293863A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH293863T 1948-08-06
CH261125T 1948-08-06

Publications (1)

Publication Number Publication Date
CH293863A true CH293863A (en) 1953-10-15

Family

ID=25730377

Family Applications (1)

Application Number Title Priority Date Filing Date
CH293863D CH293863A (en) 1948-08-06 1948-08-06 Process for the preparation of a copper-compatible polyazo dye.

Country Status (1)

Country Link
CH (1) CH293863A (en)

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