CH285005A - Process for the preparation of a copper-compatible tetrakisazo dye. - Google Patents

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

Info

Publication number
CH285005A
CH285005A CH285005DA CH285005A CH 285005 A CH285005 A CH 285005A CH 285005D A CH285005D A CH 285005DA CH 285005 A CH285005 A CH 285005A
Authority
CH
Switzerland
Prior art keywords
dye
copper
parts
compatible
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 CH285005A publication Critical patent/CH285005A/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. 282092.    <B>Verfahren zur Herstellung eines kupferbaren</B>     Tetrakisazofarbstoffes.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines kupferbaren       Tetrakisazofarbstoffes.    Das Verfahren ist da  durch gekennzeichnet, dass man 1     Mol    der         Tetrazoverbindung    von     1-(3'-Amino-benzoyl-          amino)

  -4-amino-benzol    einerseits mit 1     Mol    des       Disazofarbstoffes    der Formel  
EMI0001.0009     
         und    anderseits mit     I.        -.Hol        3-Methyl-5-pyrazolon     vereinigt.  



  Der erhaltene neue     Tetrakisazofarbstoff     stellt ein dunkles Pulver dar und löst sich in       Wasser    und     konz.    Schwefelsäure mit brauner  Farbe.  



  <I>Beispiel:</I>  Man kuppelt die aus 13,7 Teilen     1-Amino-          1)enzol-3-carbonsänre    hergestellte     Diazonium-          verbindung    in Gegenwart von 29,2 Teilen       30        %        iger        Natronlauge        und        25        Teilen        Natrium-          carbonat    mit 1.8,

  7 Teilen     1-Oxalylamino-2-oxy-          benzol    und verseift den gebildeten     Monoazo-          farbstoff    in der Hitze mit verdünnter Natron  lauge. Hierauf wird der Farbstoff in     An-          wesenheit        von        20%        Kochsalz        kalt        mit        7,6        Tei-          len        Natriumnitrit    und 50 Teilen Salzsäure       (d.-   <B>1.,16)

  </B>     weiterdiazotiert.    Die     Diazoniumver-          bindung    wird     abfiltriert    und als     AnschUm-          mung    mit     11.,0    Teilen.     1.,3-Dioxy-benzol    und  40 Teilen     Natriumearbonat    gekuppelt.

   Der       Disazofarbstoff    wird mit 100 Teilen Salzsäure  ausgefällt,     abfiltriert    und mit Wasser und       20        Teilen        30%iger        Natronlauge        gelöst.        Man       gibt nun diese Lösung zur     Tetrazoverbindung     aus 19,1 Teilen     1-(3'-Amino-benzoyl-amino)-          4-amino-benzol.    Nachdem sich das Zwischen  produkt in schwach     essigsaurer    Lösung ge  bildet hat, wird mit 8,4 Teilen     3-Methyl-5-          pyrazolon    in neutraler,

   wässriger Lösung und  anschliessend mit 7,2 Teilen     Natriumbiearbo-          nat    in 144 Teilen Wasser versetzt. Der     Tetra-          kisazofarbstoff    wird heiss     abfiltriert    und ge  trocknet.  



  Der Farbstoff bildet ein dunkles Pulver  und löst sich in Wasser und     konz.    Schwefel  säure mit brauner Farbe. Er färbt     Cellulose-          fasern    in braunen Tönen, die mit Kupfer  sulfat behandelt sehr gute     Echtheiten    auf  weisen.



  Additional patent to main patent No. 282092. <B> Process for the production of a copper-compatible </B> tetrakisazo dye. The present patent relates to a process for the preparation of a copper-compatible tetrakisazo dye. The process is characterized in that 1 mol of the tetrazo compound of 1- (3'-amino-benzoyl-amino)

  -4-amino-benzene on the one hand with 1 mol of the disazo dye of the formula
EMI0001.0009
         and on the other hand combined with I. -.Hol 3-methyl-5-pyrazolone.



  The new tetrakisazo dye obtained is a dark powder and dissolves in water and conc. Sulfuric acid with a brown color.



  <I> Example: </I> The diazonium compound prepared from 13.7 parts of 1-amino-1) enzene-3-carboxylic acid is coupled in the presence of 29.2 parts of 30% strength sodium hydroxide solution and 25 parts of sodium carbonate 1.8,

  7 parts of 1-oxalylamino-2-oxybenzene and saponified the monoazo dye formed in the heat with dilute sodium hydroxide solution. The dye is then cold in the presence of 20% common salt with 7.6 parts of sodium nitrite and 50 parts of hydrochloric acid (d.- <B> 1., 16)

  </B> further diazotized. The diazonium compound is filtered off and encapsulated with 11.0 parts. 1., 3-Dioxy-benzene and 40 parts of sodium carbonate coupled.

   The disazo dye is precipitated with 100 parts of hydrochloric acid, filtered off and dissolved with water and 20 parts of 30% strength sodium hydroxide solution. This solution is now added to the tetrazo compound from 19.1 parts of 1- (3'-amino-benzoyl-amino) -4-amino-benzene. After the intermediate product has formed in a weakly acetic acid solution, 8.4 parts of 3-methyl-5-pyrazolone in neutral,

   aqueous solution and then treated with 7.2 parts of sodium bicarbonate in 144 parts of water. The tetrakisazo dye is filtered off while hot and dried.



  The dye forms a dark powder and dissolves in water and conc. Sulfuric acid with a brown color. It dyes cellulose fibers in brown shades which, when treated with copper sulfate, show very good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer baren Tetrakisazofarbstoffes, dadurch gekenn zeichnet, dass man 1 Mol der Tetrazoverbin- dung von 1-(3'-Amino-benzoylamino)-4-amino- benzol einerseits mit 1 Mol des Disazofarbstof- fes der Formel EMI0002.0001 und anderseits mit. 1. Mol 3-Methyl-5-pyra.zo- lon vereinigt. PATENT CLAIM: A process for the production of a copper-free tetrakisazo dye, characterized in that 1 mol of the tetrazo compound of 1- (3'-amino-benzoylamino) -4-aminobenzene is mixed with 1 mol of the disazo dye of the formula EMI0002.0001 and on the other hand with. 1st mole of 3-methyl-5-pyra.zolone combined. Der erhaltene neue Tetrakisazofarbstoff stellt ein dunkles Pulver dar und löst sich in Wasser und konz. Schwefelsäure mit brau ner Farbe. The new tetrakisazo dye obtained is a dark powder and dissolves in water and conc. Sulfuric acid with a brown color.
CH285005D 1949-11-25 1949-11-25 Process for the preparation of a copper-compatible tetrakisazo dye. CH285005A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH285005T 1949-11-25
CH282092T 1949-11-25

Publications (1)

Publication Number Publication Date
CH285005A true CH285005A (en) 1952-08-15

Family

ID=25732152

Family Applications (1)

Application Number Title Priority Date Filing Date
CH285005D CH285005A (en) 1949-11-25 1949-11-25 Process for the preparation of a copper-compatible tetrakisazo dye.

Country Status (1)

Country Link
CH (1) CH285005A (en)

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