CH293864A - 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
CH293864A
CH293864A CH293864DA CH293864A CH 293864 A CH293864 A CH 293864A CH 293864D A CH293864D A CH 293864DA CH 293864 A CH293864 A CH 293864A
Authority
CH
Switzerland
Prior art keywords
amino
copper
brown
parts
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 CH293864A publication Critical patent/CH293864A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B35/00Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02Disazo dyes
    • C09B35/039Disazo dyes characterised by the tetrazo component
    • C09B35/28Disazo 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     Polyazofarbatoffes.       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-          5'-        methoxy    -     benzoylamino)

      - 4 -     amino-benzol-3-          carbonsäure    einerseits mit 1     Mol        3-Methyl-          5-pyrazolon    und anderseits mit 1     Mol        2-Acetyl-          amino-6-oxy-naphthalin-8-sulfonsäure    kuppelt.  



  Der erhaltene neue     Disazofarbstoff    stellt  ein braunes Pulver dar, das sieh in Wasser  mit brauner und in     konz.    Schwefelsäure mit  braunroter Farbe löst und     Zellulosefasern    in  braunen Tönen anfärbt, welche nach Behand  lung mit Kupfersalzen ausgezeichnete     Echt-          heiten    aufweisen.

      <I>Beispiel:</I>  31,7 Teile     1-(3'-Amino-4'-oxy-5'-methoxy-          benzoylamino)    - 4 -     amino    -     benzol-3-carbonsäure     werden in 400 Teilen Wasser mit 8 Teilen  Natronlauge kalt gelöst, mit 13,8 Teilen Na  triumnitrit vermischt und in der Kälte unter  Rühren auf     40    Teile     konz.        Salzsäure    und 80  Teile Wasser     aufgetropft.    Nach dem Ab  stumpfen der überschüssigen Mineralsäure  mit.

       Natriumbicarbonat    vereinigt man die       Tetrazoverbindung    mit 9,7 Teilen     3-1@Iethyl-5-          pyrazolon,    gelöst in     200    Teilen Wasser und       20    Teilen     Natriumbicarbonat.    Das Zwischen  produkt wird alsdann in Gegenwart von 20  Teilen Soda und 150 Teilen     Pyridin    mit 28,1  Teilen     2-Acetylamino-6-oxy-naphthalin-8-sul-          fonsäure    zum     Disazofarbstoff        vereinigt.    Der  erhaltene Farbstoff der Formel.  
EMI0001.0044     
    wird mit Kochsalz gefällt., isoliert und getrocknet..



  <B> Additional patent </B> to main patent no. 261125. Process for the production of a copper-compatible polyazo-carbate. 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-5'-methoxy - benzoylamino)

      - 4 - Amino-benzene-3-carboxylic acid coupled on the one hand with 1 mol of 3-methyl-5-pyrazolone and on the other hand with 1 mol of 2-acetylamino-6-oxynaphthalene-8-sulfonic acid.



  The new disazo dye obtained is a brown powder that looks in water with brown and in conc. Sulfuric acid with a reddish brown color dissolves and stains cellulose fibers in brown shades, which show excellent fastness properties after treatment with copper salts.

      <I> Example: </I> 31.7 parts of 1- (3'-amino-4'-oxy-5'-methoxy-benzoylamino) -4-amino-benzene-3-carboxylic acid are mixed with 8 in 400 parts of water 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. After blunting the excess mineral acid with.

       Sodium bicarbonate, the tetrazo compound is combined with 9.7 parts of 3-1 @ methyl-5-pyrazolone, dissolved in 200 parts of water and 20 parts of sodium bicarbonate. The intermediate product is then combined with 28.1 parts of 2-acetylamino-6-oxynaphthalene-8-sulphonic acid in the presence of 20 parts of soda and 150 parts of pyridine to give the disazo dye. The obtained dye of the formula.
EMI0001.0044
    is precipitated with table salt., isolated and dried ..

 

Claims (1)

PATLNTANSPRL CII Verfahren zur Herstellung eines kupfer baren Polyazofarbstoffes,dadurch gekennzeich net, dass man 1. Mol der Tetrazoverbindung von 1- (3' - Amino - 4' - oxy-5'-methoxy - benzo#rl- amino) PATLNTANSPRL CII Process for the production of a copper-free polyazo dye, characterized in that one 1 mole of the tetrazo compound of 1- (3 '- amino - 4' - oxy-5'-methoxy - benzo # rl- amino) -4-amino-benzol-3-carbonsäure einer seits mit 1 yIol 3-1@Iethyl-5-pyrazolon und an- derseits mit 1 Mol 2-Acetylamino-6-oxy-naph- thalin-8-sulfonsäure kuppelt. Der erhaltene neue Disazofarbstoff stellt ein braunes Pulver dar, das sich in Wasser mit brauner und in konz. Schwefelsäure mit braunroter Farbe löst und Zellulosefasern in braunen Tönen anfärbt, welche nach Behand lung mit Kupfersalzen ausgezeichnete Echt- heiten aufweisen. -4-Amino-benzene-3-carboxylic acid coupled on the one hand with 1 yol 3-1 @ methyl-5-pyrazolone and on the other hand with 1 mol of 2-acetylamino-6-oxy-naphthalene-8-sulfonic acid. The new disazo dye obtained is a brown powder, which in water with brown and in conc. Sulfuric acid with a reddish brown color dissolves and stains cellulose fibers in brown shades, which show excellent fastness properties after treatment with copper salts.
CH293864D 1948-08-06 1948-08-06 Process for the preparation of a copper-compatible polyazo dye. CH293864A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH261125T 1948-08-06
CH293864T 1948-08-06

Publications (1)

Publication Number Publication Date
CH293864A true CH293864A (en) 1953-10-15

Family

ID=25730378

Family Applications (1)

Application Number Title Priority Date Filing Date
CH293864D CH293864A (en) 1948-08-06 1948-08-06 Process for the preparation of a copper-compatible polyazo dye.

Country Status (1)

Country Link
CH (1) CH293864A (en)

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