CH301446A - Process for the preparation of a copper-containing disazo dye. - Google Patents

Process for the preparation of a copper-containing disazo dye.

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Publication number
CH301446A
CH301446A CH301446DA CH301446A CH 301446 A CH301446 A CH 301446A CH 301446D A CH301446D A CH 301446DA CH 301446 A CH301446 A CH 301446A
Authority
CH
Switzerland
Prior art keywords
copper
disazo dye
oxy
acid
mol
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag Sandoz
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 Sandoz filed Critical Ag Sandoz
Publication of CH301446A publication Critical patent/CH301446A/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
    • C09B33/00Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02Disazo dyes
    • C09B33/08Disazo dyes in which the coupling component is a hydroxy-amino compound
    • C09B33/10Disazo dyes in which the coupling component is a hydroxy-amino compound in which the coupling component is an amino naphthol

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines kupferhaltigen     Disazofarbstoffes.            Gegenstand    des vorliegenden Patentes ist  ein Verfahren zur     Herstellung    eines kupfer  haltigen     Disazofarbstoffes,    welches darin     b;

  -          steht,    dass man 1     Mol    der     Diazoverbindung     aus     2-Amino-l-oxy-6-chlorbenzol-4-sulfonsäure     und 1     Mol    der     Diazoverbindung    aus     2-Amino-          benzol-l-earbonsäure    mit. 1     Mol        Pumarsäure-          di-[5-oxy-7-sulfonaphthyl-(2)        ]-amid    kuppelt  und die erhaltene     Disazoverbindung    mit  einem kupferabgebenden Mittel behandelt.  



  Im nachfolgenden Beispiel bedeuten die  Teile     Gewichtsteile,    und die Prozente sind in       (iewiehtsprozenten    angegeben.  



       Beispiel:          '?2,:)    Teile     ?-Amino-l-oxy-6-clilorbenzol-          4-sulfonsäure    werden     diazotiert.    Man     -iesst     die erhaltene     Diazolösung    langsam in eine  Lösung von 55,8 Teilen     Fumarsäure-di-          1        5-oxy-7-sulfonaphthyl-(2)        ]-amid    und 30 Tei  len     Natriumcarbonat    in 1200 Teilen Wasser.

         :lach    etwa 24 Stunden ist die Kupplung zum       3lonoazofarbstoff        beendigt.    Die Lösung     wird     nun mit 150 Teilen     20 /oiger        Natrium-          earbonat1äsung    versetzt und mit, einer     Diazo-          lösunaus    14 Teilen     2-Aminobenzol-l-carboii-          säüre    vereinigt. Die Kupplung     zum        Disazo-          farbstoff        benötigt    etwa ? Stunden.

   Der       Disa.zofarbstoff        wird    hierauf aus der Reak  tionslösung     ausgesalzt    und. anschliessend     ab-          filtriert.     



  Zur Überführung in die in Substanz vor  liegende     Kupferkomplexverbindung        löst    man       94,    Teile des     Disazofarbstoffes    bei 80 bis     8:i^       in 1500 Teilen Wasser und setzt der     Lösung     60 Teile     kristallisiertes        Natriumacetat    zu.  Darauf lässt man ihr 250 Teile einer 20     o/oigen          wässrigen    Lösung aus     kristallisiertem    Kupfer  sulfat zulaufen und hält sie noch eine Stunde  bei 80 bis 85 .

   Anschliessend wird die     Metalli-          sierungslösung    durch Zugabe von     Natrium-          earbonat    alkalisch gestellt, der kupferhaltige       Disazofarbstoff        ausgesalzt,        abfiltriert    und ge  trocknet.  



  Der neue kupferhaltige     Disazofarbstoff    ist  ein     dunkles    Pulver, das sich in konzentrierter  Schwefelsäure mit roter Farbe löst und Baum  wolle und Fasern aus regenerierter     Cellulose     in bordeauxroten Tönen von sehr guter     Licht-          eehtheit    und guter Waschechtheit färbt.  Durch Nachbehandeln auf der Faser mit  Kupfersalzen in     Gegenwart    eines     Polyal-          kylenpolyamins    werden die     Nasseehtheits-          eigenschaften    der Färbungen noch verbessert,



  Process for the preparation of a copper-containing disazo dye. The present patent relates to a process for the preparation of a copper-containing disazo dye, which therein b;

  - Stands that 1 mol of the diazo compound from 2-amino-1-oxy-6-chlorobenzene-4-sulfonic acid and 1 mol of the diazo compound from 2-amino-1-oxy-acid with. 1 mol of pumaric acid di- [5-oxy-7-sulfonaphthyl- (2)] -amide is coupled and the disazo compound obtained is treated with a copper-releasing agent.



  In the following example, the parts are parts by weight, and the percentages are given in weight percentages.



       Example: '? 2, :) parts of? -Amino-1-oxy-6-clilorbenzene-4-sulfonic acid are diazotized. The diazo solution obtained is slowly poured into a solution of 55.8 parts of fumaric acid-di- 1 5-oxy-7-sulfonaphthyl- (2)] amide and 30 parts of sodium carbonate in 1200 parts of water.

         : laughing about 24 hours, the coupling to the 3lonoazo dye is complete. The solution is then mixed with 150 parts of 20% sodium carbonate solution and combined with a diazo solution of 14 parts of 2-aminobenzene-1-carbonic acid. The coupling to the disazo dye requires about? Hours.

   The disa.zo dye is then salted out of the reaction solution and. then filtered off.



  To convert to the copper complex compound present in substance, 94 parts of the disazo dye are dissolved at 80 to 8: i ^ in 1500 parts of water and 60 parts of crystallized sodium acetate are added to the solution. 250 parts of a 20% aqueous solution of crystallized copper sulfate are then allowed to run into it and it is kept at 80 to 85 for an hour.

   The metallization solution is then made alkaline by adding sodium carbonate, and the copper-containing disazo dye is salted out, filtered off and dried.



  The new copper-containing disazo dye is a dark powder that dissolves in concentrated sulfuric acid with a red color and dyes cotton and fibers made of regenerated cellulose in burgundy shades of very good lightfastness and good washfastness. Post-treating the fiber with copper salts in the presence of a polyalkylene polyamine further improves the wetness properties of the dyeings.

 

Claims (1)

PATENTANSPRUCII Verfahren zur Herstellung eines kupfer haltigen Disazofarbstoffes, dadurch gekenn zeichnet, dass man 1 Mol der Diazoverbindung aus 2-Amino-l-oxy-6-chlorbenzol-4-sulfonsäiire und 1 Mol der Diazoverbindung aus 2-Amino- benzol-l-carbonsäure mit 1 Mol Fumarsäure- di-[5-oxy-7-sulfonaphthyl-(2)]-amid kuppelt und die erhaltene Disazoverbindung mit. A process for the production of a copper-containing disazo dye, characterized in that 1 mol of the diazo compound from 2-amino-1-oxy-6-chlorobenzene-4-sulfonic acid and 1 mol of the diazo compound from 2-amino-benzene-1-carboxylic acid with 1 mole of fumaric acid di- [5-oxy-7-sulfonaphthyl- (2)] - amide and the disazo compound obtained with. einem kupferabgebenden Mittel behändelt. Der neue kupferhaltige Disazofarbstoff ist ein dunkles Pulver, .das sieh in konzentrierter Schwefelsäure mit roter Farbe löst und Baumwolle und Fasern aus regenerierter Cellulose in bordeauxroten Tönen von sehr guter Liehteehtheit und guter Waschechtheit färbt. treated with a copper-releasing agent. The new copper-containing disazo dye is a dark powder that dissolves in concentrated sulfuric acid with a red color and dyes cotton and fibers from regenerated cellulose in burgundy shades of very good lightness and good wash fastness. Durch Nachbehandeln auf der Faser mit Kupfersalzen in Gegenwart eines Poly a1- kylenpolyamins werden die Nassechtheits- eigenscha.ften der Färbungen noch verbessert. After-treating the fiber with copper salts in the presence of a polyalkylenepolyamine, the wet fastness properties of the dyeings are further improved.
CH301446D 1952-01-17 1952-01-17 Process for the preparation of a copper-containing disazo dye. CH301446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH301446T 1952-01-17

Publications (1)

Publication Number Publication Date
CH301446A true CH301446A (en) 1954-09-15

Family

ID=4491043

Family Applications (1)

Application Number Title Priority Date Filing Date
CH301446D CH301446A (en) 1952-01-17 1952-01-17 Process for the preparation of a copper-containing disazo dye.

Country Status (1)

Country Link
CH (1) CH301446A (en)

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