CH311034A - Process for the production of a copper-containing polyazo dye. - Google Patents

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

Info

Publication number
CH311034A
CH311034A CH311034DA CH311034A CH 311034 A CH311034 A CH 311034A CH 311034D A CH311034D A CH 311034DA CH 311034 A CH311034 A CH 311034A
Authority
CH
Switzerland
Prior art keywords
copper
dye
amino
polyazo dye
production
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 CH311034A publication Critical patent/CH311034A/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
    • C09B31/00Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent Nr. 290585.    Verfahren zur     Herstellung    eines kupferhaltigen     Polyazofarbstoffes:       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines kupfer  haltigen     Polyazofarbstoffes,    welches darin be  steht,     da.ss    man 1     Mol    der     Diazoverbindung     aus dem     Aminodisazofarbstoff,    welchen man  durch Kuppeln von     diazotierter    2-Aminonaph-         thalin    - 6, 8 -     disulfonsäure    mit 1-     Amino    -     3-me-          thylbenzol,

          Weiterdiazotieren    der     Amino-          monoazoverbindung    und Kuppeln des     Diazo-          körpers    mit     1-Amino-2-methoxy-5-methylben-          zol    erhält, mit 1     Mol    der     Kupferl@omplexver-          bindung    der Zusammensetzung  
EMI0001.0024     
    kuppelt und den erhaltenen     Polyazofarbstoff     mit einem kupferabgebenden Mittel unter     sol-          ehen    Bedingungen behandelt,

   dass die     Meth-          oxygruppe    aufgespalten wird.  



  Im nachfolgenden Beispiel bedeuten die  Teile Gewichtsteile.         Beispiel:       56,7 Teile des     Aminodisazofarbstoffes,    wel  chen man durch Kuppeln von     diazotierter          2-Aminonaphthalin-6,8-disulfonsäure    mit     1-          Amino-3-methylbenzol,        Weiterdiazotieren    der         Aminomonoazoverbindung        und    Kuppeln des       Diazokörpers    mit     1-Amino-2-methoxy-5-me-          thylben7ol    erhält, werden in 500 Teilen Was  ser angerührt.

   Man versetzt die     Suspension     mit 7 Teilen     Natriumnitrit    und stellt sie bei  10-12  unter     gutem    Rühren durch Zusatz  von 50 Teilen konzentrierter Salzsäure kongo  sauer. Nach ungefähr 2-3 Stunden ist die       Diazotierung    beendigt. Die erhaltene     Diazo-          verbindung    wird mit der     Lösung    von 55,2  Teilen der     Kupferkomplexverbindung    der Zu  sammensetzung  
EMI0001.0050     
      in 600 Teilen Wasser und 1500 Teilen     Pyridin     bei Zimmertemperatur vereinigt. Man er  wärmt die Masse zur Beendigung der Kupp  lung noch 2 Stunden lang auf 50-60 .

   Zur       Kupferung    des erhaltenen     Tetrakisazofarb-          stoffes    gibt man ihr bei 90  eine Lösung aus  25 Teilen     kristallisiertem    Kupfersulfat, 25  Teilen     25o/oigem    Ammoniak und 100 Teilen  Wasser zu und rührt sie nun so lange bei 90  bis 95 , bis sich die     Kupferkomplexverbindung     unter Aufspaltung der     Methoxygruppe    gebil  det hat. Hierauf     wird    der Farbstoff in übli  cher Weise isoliert und bei 90  getrocknet. Er  färbt Baumwolle und Fasern aus regenerier  ter     Cellulose    in oliven Tönen von hervorragen-    der Lichtechtheit und sehr guter Waschecht  heit.



  Additional patent to main patent no. 290585. Process for the production of a copper-containing polyazo dye: The subject of the present patent is a process for the production of a copper-containing polyazo dye, which is that 1 mol of the diazo compound from the aminodisazo dye, which is obtained by coupling diazotized 2-aminonaphthalene - 6, 8 - disulfonic acid with 1- amino - 3-methylbenzene,

          Further diazotization of the amino monoazo compound and coupling of the diazo body with 1-amino-2-methoxy-5-methylbenzene is obtained with 1 mole of the copper complex compound of the composition
EMI0001.0024
    couples and treats the polyazo dye obtained with a copper releasing agent under such conditions,

   that the methoxy group is split up.



  In the following example, the parts are parts by weight. Example: 56.7 parts of the aminodisazo dye, which can be obtained by coupling diazotized 2-aminonaphthalene-6,8-disulfonic acid with 1-amino-3-methylbenzene, further diazotizing the aminomonoazo compound and coupling the diazo body with 1-amino-2-methoxy 5-methylben7ol is obtained, are mixed in 500 parts of water.

   The suspension is mixed with 7 parts of sodium nitrite and made acidic at 10-12 with good stirring by adding 50 parts of concentrated hydrochloric acid congo. The diazotization is complete after about 2-3 hours. The diazo compound obtained is mixed with the solution of 55.2 parts of the copper complex compound of the composition
EMI0001.0050
      combined in 600 parts of water and 1500 parts of pyridine at room temperature. He warms the mass to end the coupling for 2 hours to 50-60.

   To copperize the tetrakisazo dye obtained, a solution of 25 parts of crystallized copper sulfate, 25 parts of 250% ammonia and 100 parts of water is added at 90 to it and it is then stirred at 90 to 95 until the copper complex compound splits up with the methoxy group has formed. The dye is then isolated in a customary manner and dried at 90 °. It dyes cotton and fibers made from regenerated cellulose in olive tones with excellent lightfastness and very good washfastness.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer haltigen Polyazofarbstoffes, dadurch gekenn zeichnet, dass man 1 Mol der Diazoverbindung aus dem Aminodisazofa.rbstoff, welchen man durch Kuppeln von diazot.ierter 2-Aminonaph- thalin-6,8-disulfonsäure mit- 1-Amino-3-me- thylbenzol, Claim: A process for the production of a copper-containing polyazo dye, characterized in that 1 mol of the diazo compound is obtained from the aminodisazo dye, which is obtained by coupling diazotized 2-aminonaphthalene-6,8-disulfonic acid with 1-amino -3-methylbenzene, Weiterdiazotieren der Aminomono- azoverbindung und Kuppeln des Diazokörpers mit 1-Amino-2-methoxy-5-methylbenzol erhält, mit 1 Mol der Kupferkomplexverbindung der Zusammensetzung EMI0002.0027 kuppelt und den erhaltenen Polyazofarbstoff mit einem kupferabgebenden Mittel unter sol chen Bedingungen behandelt, dass die Meth- oxygruppe aufgespalten wird. Further diazotization of the amino monoazo compound and coupling of the diazo body with 1-amino-2-methoxy-5-methylbenzene is obtained with 1 mole of the copper complex compound of the composition EMI0002.0027 coupled and treated the polyazo dye obtained with a copper donor under such conditions that the methoxy group is split. Der neue kupferhaltige Polyazofarbstoff färbt Baumwolle und Fasern aus regenerier ter Cellulose in oliven Tönen von hervorragen der Lichtechtheit und sehr guter Waschecht heit. The new copper-containing polyazo dye dyes cotton and fibers made from regenerated cellulose in olive shades with excellent lightfastness and very good washfastness.
CH311034D 1952-11-27 1952-11-27 Process for the production of a copper-containing polyazo dye. CH311034A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH311034T 1952-11-27
CH290585T 1953-05-15

Publications (1)

Publication Number Publication Date
CH311034A true CH311034A (en) 1955-11-15

Family

ID=25733041

Family Applications (1)

Application Number Title Priority Date Filing Date
CH311034D CH311034A (en) 1952-11-27 1952-11-27 Process for the production of a copper-containing polyazo dye.

Country Status (1)

Country Link
CH (1) CH311034A (en)

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