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CH249289A - Process for the production of a copper-containing azo dye. - Google Patents

Process for the production of a copper-containing azo dye.

Info

Publication number
CH249289A
CH249289A CH249289DA CH249289A CH 249289 A CH249289 A CH 249289A CH 249289D A CH249289D A CH 249289DA CH 249289 A CH249289 A CH 249289A
Authority
CH
Switzerland
Prior art keywords
copper
dye
mol
production
water
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 CH249289A publication Critical patent/CH249289A/en

Links

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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/24—Disazo or polyazo compounds
    • C09B45/28—Disazo or polyazo compounds containing copper

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 243334.    Verfahren zur Herstellung     eines        kupferhaltigen        Azofarbstoffes.       Das vorliegende Patent betrifft ein Ver  fahren zur Herstellung eines neuen kupfer  haltigen     Azofarbstoffes    und ist dadurch ge  kennzeichnet, dass man 1     Mol        tetrazotiertes          Dianisidin    mit 1     Mol        1-Oxynaphthalin-3,6,

  8-          trisulfonsäure    und 1     Mol        2-Benzoylamido-5-          oxynaphtha.lin-7-sulfonsäure    kuppelt und den  erhaltenen Farbstoff mit einem kupferabge  benden     Mittel    behandelt.    <I>Beispiel:</I>  24,4 Teile     Dianisidin    werden wie üblich       tetrazqtiert    und unter Eiskühlung mit 45  Teilen     1-oxynaphthalin-3,6,8-trisulfonsaurem     Natrium in Gegenwart von Soda vereinigt.

    Nach erfolgter Bildung der Zwischenverbin  dung wird eine Lösung von 36,5 Teilen       2-benzoylamido-5-oxynaphthalin-7-sulfonsau-          rem    Natrium zugefügt und bis zur Beendi  gung der     Farbstoffbildung    gerührt. Dann  wird der entstandene     Disazofarbstoff        ausge-          salzen    und filtriert. Der     Disa.zofarbstoff    wird  in 2000 Teilen Wasser unter Zusatz von  20 Teilen Soda gelöst.

   Bei 80-90  werden  unter     Rühren    allmählich 500 Teile einer       Kupferoxydammonial@lösung        zugefügt,    ent  haltend 50 Teile kristallisiertes Kupfersulfat  und 85 Teile     konzentrierte    wässerige     Ammo-          niaklösung.    Es wird 5 Stunden bei 80-90     gerührt und darauf in einer     Stunde    zum  Kochen erhitzt. Dann wird 15 Stunden     unter          Rüekfluss    gekocht. Der entstandene Kupfer  komplex wird     ausgesalzen,    filtriert und ge  trocknet.

   Er stellt ein dunkles Pulver dar  und löst sich in Wasser mit blauer und in  konzentrierter Schwefelsäure mit     grünstichig     blauer Farbe. Baumwolle und regenerierte       Cellulose    färbt er in     rotstichig    blauen Tönen  von sehr guter Licht-, Wasch- und Wasser  echtheit.



  <B> Additional patent </B> to main patent no. 243334. Process for the production of a copper-containing azo dye. The present patent relates to a process for the production of a new copper-containing azo dye and is characterized in that 1 mol of tetrazotized dianisidine with 1 mol of 1-oxynaphthalene-3,6,

  8-trisulfonic acid and 1 mol of 2-benzoylamido-5-oxynaphtha.lin-7-sulfonic acid are coupled and the dye obtained is treated with a copper-releasing agent. <I> Example: </I> 24.4 parts of dianisidine are tetrazole as usual and combined with 45 parts of sodium 1-oxynaphthalene-3,6,8-trisulfonic acid in the presence of soda, while cooling with ice.

    After the intermediate compound has formed, a solution of 36.5 parts of 2-benzoylamido-5-oxynaphthalene-7-sulphonic acid is added and the mixture is stirred until the formation of the dye has ended. The resulting disazo dye is then salted out and filtered. The disa.zo dye is dissolved in 2000 parts of water with the addition of 20 parts of soda.

   At 80-90, 500 parts of a copper oxide ammonia solution are gradually added with stirring, containing 50 parts of crystallized copper sulfate and 85 parts of concentrated aqueous ammonia solution. It is stirred for 5 hours at 80-90 and then heated to the boil in one hour. Then it is boiled under reflux for 15 hours. The resulting copper complex is salted out, filtered and dried.

   It is a dark powder and dissolves in water with a blue color and in concentrated sulfuric acid with a greenish blue color. It dyes cotton and regenerated cellulose in reddish blue tones that are very fast to light, washing and water.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen kupferhaltigen A.zofarbstoffes, dadurch ge kennzeichnet, dass man 1 Mol tetrazotiertes Dia:nisidin mit 1 Mol 1-Oxynaphthalin-3',6,8.- trisul.foiis.äure und 1 Mol 2-Benzoylamido-5- oxynaphthaIin-7-sulfonsäure kuppelt und den erhaltenen Farbstoff mit einem kupfer abgebenden Mittel behandelt. PATENT CLAIM: Process for the preparation of a new copper-containing A.zo dye, characterized in that 1 mol of tetrazotized dia: nisidine is added to 1 mol of 1-oxynaphthalene-3 ', 6,8.-trisul.foiis.acid and 1 mol of 2-benzoylamido -5- oxynaphthaIin-7-sulfonic acid coupled and treated the dye obtained with a copper releasing agent. Der neue kupferhaltige Farbstoff stellt ein dunkles Pulver dar und löst sich in Was ser mit blauer und in konzentrierter Schwe felsäure mit grünstichig blauer Farbe. Baum wolle und regenerierte Cellulose färbt er in rotstichig blauenTönen von sehr guterLicht-, Wasch- und Wasserechtheit. The new copper-containing dye is a dark powder and dissolves in water with a blue color and in concentrated sulfuric acid with a greenish blue color. He dyes cotton and regenerated cellulose in reddish blue tones that are very fast to light, washing and water.
CH249289D 1944-08-24 1944-08-24 Process for the production of a copper-containing azo dye. CH249289A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH597130X 1944-08-24
CH249289T 1944-08-24

Publications (1)

Publication Number Publication Date
CH249289A true CH249289A (en) 1947-06-15

Family

ID=25729345

Family Applications (1)

Application Number Title Priority Date Filing Date
CH249289D CH249289A (en) 1944-08-24 1944-08-24 Process for the production of a copper-containing azo dye.

Country Status (1)

Country Link
CH (1) CH249289A (en)

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