CH185673A - Process for the preparation of the copper complex compound of a polyazo dye. - Google Patents

Process for the preparation of the copper complex compound of a polyazo dye.

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Publication number
CH185673A
CH185673A CH185673DA CH185673A CH 185673 A CH185673 A CH 185673A CH 185673D A CH185673D A CH 185673DA CH 185673 A CH185673 A CH 185673A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
complex compound
copper complex
polyazo
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH185673A publication Critical patent/CH185673A/en

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Description

  

  Verfahren zur Herstellung der     gupferkompleaverbindung    eines     Polyazofarbstoffes.       Es wurde gefunden, dass man wertvolle  Dis- und     Polyazofarbstoffe,    die die Eigen  schaft besitzen, besonders lichtechte Metall  komplexverbindungen zu geben, erhält, wenn  man     Diazoverbindungen    mit     8-Aminochinolin     oder dessen     Kernsubstitutionsprodukten    kup  pelt, die so erhaltenen     Aminoazofarbstoffe     erneut dianotiert und mit Kupplungskom  ponenten vereinigt und die gebildeten sekun  dären Dis- und     Polyazofarbstoffe    mit Metall  verbindungen behandelt.  



  Vorliegendes Patent bezieht sich nun auf  ein Verfahren zur Herstellung der Kupfer  komplexverbindung eines     Polyazofarbstoffes,     dadurch gekennzeichnet, dass man die     Diazo-          verbindung    des     Aminoazofarbstoffes        5-(4'-          Sulfophenyl-azo)-8-aminochinolin    in alkali  schem Medium mit der     2-(3'Carboxyphenyl-          amino)-5-iiaphthol-7-sulfosäure    kuppelt und  den so erhaltenen     Disazofarbstoff    mit einem  Kupfer abgebenden Mittel behandelt.

      Der neue Farbstoff ist getrocknet ein  dunkles Pulver und löst sich in konzentrierter"  Schwefelsäure mit blauer und in Wasser  mit rotvioletter Farbe. Er färbt Baumwolle  in kräftigen     rotstichig    blauen Tönen von be  sonderer Lichtechtheit.    <I>Beispiel:

  </I>       5-(4'-Sulfophenyl-azo)-8-aminochinolin     (hergestellt durch     Diazotieren    von 17,3 Teilen       Sulfanilsäure    und Kuppeln mit der salzsauren  Lösung von 14,4 Teilen     8-Aminochinolin     unter Zusatz von     Natriumacetat)    wird in der  notwendigen Menge verdünnter Lauge ge  löst, mit 6,9 Teilen     Natriumnitrit    versetzt,  worauf diese     Mischung    in eisgekühlte ver  dünnte Salzsäure einläuft.

   Nach Beendigung  der     D.iazotierung    wird die     Diazoverbindung     mit 36 Teilen     2.,(3'-Carboxypheny1-amino)-5-          naphthol-7-sulfosäure    in Gegenwart von     Pyri-          din    und Soda gekuppelt. Der abgeschiedene           Parbstoff    wird in Lösung gebracht und diese  nach Zusatz von 15 Teilen     Natriumacetat     und 25 Teilen Kupfersulfat mehrere Stunden  zum Sieden erhitzt.



  Process for the preparation of the copper complex compound of a polyazo dye. It has been found that valuable dis- and polyazo dyes, which have the property of giving particularly lightfast metal complex compounds, are obtained when diazo compounds are coupled with 8-aminoquinoline or its core substitution products, the aminoazo dyes thus obtained are dianotated again and with coupling components combined and treated the secondary dis- and polyazo dyes formed with metal compounds.



  The present patent relates to a process for the preparation of the copper complex compound of a polyazo dye, characterized in that the diazo compound of the aminoazo dye 5- (4'-sulfophenyl-azo) -8-aminoquinoline in an alkaline medium with the 2- ( 3'Carboxyphenyl-amino) -5-iiaphthol-7-sulfonic acid is coupled and the disazo dye thus obtained is treated with a copper-releasing agent.

      The new dye is a dark powder when dried and dissolves in concentrated sulfuric acid with a blue color and in water with a red-violet color. It dyes cotton in strong red-tinged blue tones that are particularly lightfast. <I> Example:

  </I> 5- (4'-sulfophenyl-azo) -8-aminoquinoline (prepared by diazotizing 17.3 parts of sulfanilic acid and coupling with the hydrochloric acid solution of 14.4 parts of 8-aminoquinoline with the addition of sodium acetate) is in the necessary amount of dilute caustic solution, mixed with 6.9 parts of sodium nitrite, whereupon this mixture runs into ice-cold dilute hydrochloric acid.

   After the diazotization has ended, the diazo compound is coupled with 36 parts of 2, (3'-carboxyphenyl-amino) -5-naphthol-7-sulfonic acid in the presence of pyridine and soda. The separated paraffin is brought into solution and, after the addition of 15 parts of sodium acetate and 25 parts of copper sulfate, the solution is heated to boiling for several hours.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung der Kupfer- komplegverbindung eines Polyazofarbstoffes, dadurch gekennzeichnet, dass man die Diazo- verbindung des Aminoazofarbstoffes 5-(4'#Sulfo- phenyl-azo)-8.aminochinolin in 'alkalischem Medium mit der 2-(3'-Carboayphenylamino)- 5-naphthol-7-sulfosäure kuppelt und den so erhaltenen Disazofarbstoff mit einem Kupfer abgebenden Mittel behandelt. PATENT CLAIM: Process for the preparation of the copper complex compound of a polyazo dye, characterized in that the diazo compound of the aminoazo dye 5- (4 '# sulfophenyl-azo) -8.aminoquinoline is in an alkaline medium with the 2- (3') -Carboayphenylamino) - 5-naphthol-7-sulfonic acid and treated the disazo dye thus obtained with a copper donating agent. Der neue Farbstoff ist getrocknet ein dunkles Pulver und löst sich in konzentrierter Schwefelsäure mit blauer und in Wasser mit rotvioletter Farbe. Er färbt Baumwolle in kräftigen rotstichig blauen Tönen von besonderer Lichtechtheit. The new dye is a dark powder when dried and dissolves in concentrated sulfuric acid with a blue color and in water with a red-violet color. It dyes cotton in strong reddish blue tones that are particularly lightfast.
CH185673D 1934-06-27 1935-06-21 Process for the preparation of the copper complex compound of a polyazo dye. CH185673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE185673X 1934-06-27

Publications (1)

Publication Number Publication Date
CH185673A true CH185673A (en) 1936-08-15

Family

ID=5719550

Family Applications (1)

Application Number Title Priority Date Filing Date
CH185673D CH185673A (en) 1934-06-27 1935-06-21 Process for the preparation of the copper complex compound of a polyazo dye.

Country Status (1)

Country Link
CH (1) CH185673A (en)

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