CH285003A - Process for the preparation of a copper-compatible tetrakisazo dye. - Google Patents

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

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Publication number
CH285003A
CH285003A CH285003DA CH285003A CH 285003 A CH285003 A CH 285003A CH 285003D A CH285003D A CH 285003DA CH 285003 A CH285003 A CH 285003A
Authority
CH
Switzerland
Prior art keywords
dye
parts
copper
preparation
compatible
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 CH285003A publication Critical patent/CH285003A/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
    • C09B35/38Trisazo dyes ot the type
    • C09B35/40Trisazo dyes ot the type the component K being a dihydroxy or polyhydroxy compound

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  • 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-(4'-Amino-benzoyl-          amino)

  -4-aminobenzol    einerseits mit 1     Mol    des       Disazofarbstoffes    der Formel  
EMI0001.0010     
    und anderseits mit     1Mol        3-Methyl-5-pyrazo-          lon    vereinigt.  



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



  <I>Beispiel:</I>  Man dianotiert. 22,3 Teile     1-Amino-naph-          thalin-4-sulfonsäure    mit. 6,9 Teilen     Na.trium-          nitrit    in bekannter Weise und kuppelt in     An-          wesenheit        von        14,6        Teilen        30%iger        Natron-          lauge    und 25 'Teilen     Natriumcarbonat    mit  16,0 Teilen     1.-Acetylamino-2-oxy-benzol.    Ist die  Kupplung fertig, wird der Farbstoff durch  Erhitzen mit verdünnter Natronlauge ver  seift, mit.

   verdünnter     Schwefelsäure    kalt aus  gefällt und     abfiltriert.    Man löst nun den       Farbstoff        in        Wasser        und        17        Teilen        30        %        iger          Natronlauge,        versetzt.        mit        20%        Kochsalz        und     dianotiert in der Kälte mit 7,7 Teilen Na  triumnitrit und 50 Teilen Salzsäure (d :1,16).

         1)ie        Diazoniumverbindung    wird     abfiltriert     und in     Anschlämmung    mit 11,0 Teilen     1,3-          Dioxybenzol    in Gegenwart von 40 Teilen     Na-          triumcarbonat    gekuppelt.

   Den Disazofarb-    Stoff säuert man mit 125 Teilen Salzsäure  (d :<B>1,16)</B> aus,     filtriert    und löst ihn in     Was-          ser        und        20        Teilen        30        %        iger        Natronlauge.     Durch Zugabe dieser Lösung zur     Tetrazover-          bindung        aus        l.9,1    Teilen     1-(4'-Amino-benzoyl-          amino)

  -4-amino-benzol    wird in schwach lack  mussaurer Lösung das Zwischenprodukt her  gestellt. Dann versetzt man mit 8,4 Teilen       3-Methyl-5-pyrazolon    in neutraler, wässriger  Lösung und anschliessend mit. 7,2 Teilen     Na-          triumbicarbonat    in 144 Teilen Wasser. Ist  die Kupplung beendet, wird der Farbstoff  heiss     ausgesalzen,        abfiltriert    und getrocknet.  



  Als dunkles Pulver löst sich der Farbstoff  in Wasser und in     konz.    Schwefelsäure mit  brauner Farbe. Er färbt     Cellulosefasern    in  braunen Tönen an, die mit Kupfersulfat be  handelt vor allem sehr gute Licht-, Wasch-,  Säure- und Schweissechtheit zeigen.



      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- (4'-amino-benzoyl-amino)

  -4-aminobenzene on the one hand with 1 mol of the disazo dye of the formula
EMI0001.0010
    and on the other hand combined with 1 mol of 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> You're dianoting. 22.3 parts of 1-amino-naphthalene-4-sulfonic acid with. 6.9 parts of sodium nitrite in a known manner and, in the presence of 14.6 parts of 30% strength sodium hydroxide solution and 25 parts of sodium carbonate, coupled with 16.0 parts of 1-acetylamino-2-oxy-benzene. When the coupling is ready, the dye is soaped by heating it with dilute sodium hydroxide solution.

   cold precipitated dilute sulfuric acid and filtered off. The dye is now dissolved in water and 17 parts of 30% strength sodium hydroxide solution are added. with 20% table salt and dianotized in the cold with 7.7 parts of sodium nitrite and 50 parts of hydrochloric acid (d: 1.16).

         1) The diazonium compound is filtered off and coupled in suspension with 11.0 parts of 1,3-dioxybenzene in the presence of 40 parts of sodium carbonate.

   The disazo dye is acidified with 125 parts of hydrochloric acid (d: 1.16), filtered and dissolved in water and 20 parts of 30% sodium hydroxide solution. By adding this solution to the tetrazo compound from 1.9.1 parts of 1- (4'-amino-benzoyl-amino)

  -4-Amino-benzene is used as an intermediate product in a slightly acidic solution. 8.4 parts of 3-methyl-5-pyrazolone in neutral, aqueous solution are then added, followed by. 7.2 parts of sodium bicarbonate in 144 parts of water. When the coupling has ended, the dye is salted out while hot, filtered off and dried.



  As a dark powder, the dye dissolves in water and in conc. Sulfuric acid with a brown color. It dyes cellulose fibers in brown tones, which when treated with copper sulphate show, above all, very good fastness to light, washing, acid and perspiration.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer baren Tetrakisazofarbstoffes, dadurch ge kennzeichnet, dass man 1. Mol der Tetrazover- bindung von 1- (4'-Amino-benzoylamino)-4- aminobenzol einerseits mit 1 hol des Diazofarbstoffes der Formel EMI0002.0004 und anderseits mit 1 hol 3-lblethyl-5-pyrazolon vereinigt. PATENT CLAIM: A process for the preparation of a copper-ble tetrakisazo dye, characterized in that 1 mol of the tetrazo compound of 1- (4'-amino-benzoylamino) -4- aminobenzene on the one hand with 1 hol of the diazo dye of the formula EMI0002.0004 and on the other hand combined with 1 hol 3-1-methyl-5-pyrazolone. Der erhaltene neue Tetrakisazofarbstoff lo stellt ein dunkles Pulver dar und löst. sieh in M'asser und konz. Seliwefelsäure mit brauner Farbe. The new tetrakisazo dye obtained is a dark powder and dissolves. see in M'asser and conc. Seliulfuric acid of brown color
CH285003D 1949-11-25 1949-11-25 Process for the preparation of a copper-compatible tetrakisazo dye. CH285003A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH285003T 1949-11-25
CH282092T 1949-11-25

Publications (1)

Publication Number Publication Date
CH285003A true CH285003A (en) 1952-08-15

Family

ID=25732150

Family Applications (1)

Application Number Title Priority Date Filing Date
CH285003D CH285003A (en) 1949-11-25 1949-11-25 Process for the preparation of a copper-compatible tetrakisazo dye.

Country Status (1)

Country Link
CH (1) CH285003A (en)

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