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CH249290A - 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
CH249290A
CH249290A CH249290DA CH249290A CH 249290 A CH249290 A CH 249290A CH 249290D A CH249290D A CH 249290DA CH 249290 A CH249290 A CH 249290A
Authority
CH
Switzerland
Prior art keywords
copper
dye
mol
azo dye
containing azo
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 CH249290A publication Critical patent/CH249290A/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)
  • Paper (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     ATol        tetrazotiertes          Dianisidin    mit 1     Mol        1-OxynaphthaIin-3,6,

  8-          trisulfonsäure    und 1     Mol        1-Phenylazo-2-          amido-5-oxynaphthalin-7-sulfonsäure    kuppelt  und den erhaltenen Farbstoff mit einem kup  ferabgebenden Mittel behandelt.  



       Beispiel:     94,4     Teile        Dianisidin        werden    wie üblich       tetrazotiert    und unter Eiskühlung mit 45  Teilen     1-oxynaphtha.lin-3,6,8-trisulfonsaurem     Natrium in Gegenwart von Soda vereinigt,  Nach erfolgter Bildung der Zwischenverbin  dung wird eine     Lösung    von 36,

  5 Teilen 1  phenylazo-2-amido-5-oxynaphthalin-7-sulf     on-          sa.urem    Natrium zugefügt und     bis    zur Be  endigung der     Farbstoffbildung        gerührt.    Dann  wird der     entstandene        Disazofarbstoff        ausge-          salzen    und filtriert. Dieser wird dann in 2000  Teilen Wasser unter Zusatz von 20 Teilen  Soda gelöst.

   Bei 80-90  werden unter Rüh  ren allmählich 500 Teile einer     Kupferoxyd-          a:m@moniaklösung    zugefügt, enthaltend 50  Teile kristallisiertes Kupfersulfat und 85  Teile konzentrierte wässerige     Ammoniak-          lösung.    Es wird 5     Stunden    bei 80-90  ge-    rührt und darauf in einer Stunde zum Kochen  erhitzt, Dann wird 15 Stunden unter Rück  fluss gekocht. Der entstandene Kupferkom  plex wird     ausgesalzen,    filtriert und getrock  net. Er stellt ein     dunkles    Pulver dar und  löst sich in Wasser mit blauer und in kon  zentrierter Schwefelsäure mit     grünstichig     blauer Farbe.

   Baumwolle. und regenerierte       Cellulose    färbt er     in    lebhaft 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 ATol of tetrazotized dianisidine with 1 mol of 1-oxynaphthalene-3,6,

  8-trisulfonic acid and 1 mole of 1-phenylazo-2-amido-5-oxynaphthalene-7-sulfonic acid are coupled and the dye obtained is treated with a copper-releasing agent.



       Example: 94.4 parts of dianisidine are tetrazotized as usual and combined with 45 parts of 1-oxynaphtha.lin-3,6,8-trisulfonic acid sodium in the presence of soda, while cooling with ice. After the intermediate compound has been formed, a solution of 36,

  5 parts of 1 phenylazo-2-amido-5-oxynaphthalene-7-sulfon-acidic sodium were added and the mixture was stirred until the dye had formed. The resulting disazo dye is then salted out and filtered. This is then dissolved in 2000 parts of water with the addition of 20 parts of soda.

   At 80-90, 500 parts of a copper oxide a: m @ monia solution containing 50 parts of crystallized copper sulfate and 85 parts of concentrated aqueous ammonia solution are gradually added with stirring. It is stirred for 5 hours at 80-90 and then heated to the boil in one hour, then refluxed 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.

   Cotton. and regenerated cellulose, it dyes lively blue tones with very good light, wash and water fastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen kupferhaltigen Azofarbstoffes, dadurch ge kennzeichnet, .dass man 1 Mol tetrazotiertes Dianisidin mit 1 Mol 1-Oxynaphthalin-3,6,8- trisulfonsäure und 1 Mol 1 Phenylazo-2- amido-5-oxynaphthalin-7-sulfo@nsäure kuppelt und den erhaltenen Farbstoff mit einem kup ferabgebenden Mittel behandelt. Der neue kupferhaltige Farbstoff stellt ein dunkles Pulver dar. PATENT CLAIM: Process for the preparation of a new copper-containing azo dye, characterized in that 1 mol of tetrazotized dianisidine is added to 1 mol of 1-oxynaphthalene-3,6,8-trisulfonic acid and 1 mol of 1 phenylazo-2-amido-5-oxynaphthalene-7 -sulfonic acid couples and treated the dye obtained with a copper-releasing agent. The new copper-containing dye is a dark powder. Er löst sich in Was ser mit blauer und in konzentrierter Schwe felsäure mit grünstichig blauer Farbe. Baum wolle und regenerierte Cellulose färbt er in lebhaft blauen Tönen von sehr guter Licht-, Wasch- und Wasserechtheit. It dissolves in water with a blue color and in concentrated sulfuric acid with a greenish blue color. He dyes cotton and regenerated cellulose in lively blue tones that are very fast to light, washing and water.
CH249290D 1944-08-24 1944-08-24 Process for the production of a copper-containing azo dye. CH249290A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH249290T 1944-08-24
CH597130X 1944-08-24

Publications (1)

Publication Number Publication Date
CH249290A true CH249290A (en) 1947-06-15

Family

ID=25729346

Family Applications (1)

Application Number Title Priority Date Filing Date
CH249290D CH249290A (en) 1944-08-24 1944-08-24 Process for the production of a copper-containing azo dye.

Country Status (1)

Country Link
CH (1) CH249290A (en)

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