CH311037A - 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
CH311037A
CH311037A CH311037DA CH311037A CH 311037 A CH311037 A CH 311037A CH 311037D A CH311037D A CH 311037DA CH 311037 A CH311037 A CH 311037A
Authority
CH
Switzerland
Prior art keywords
copper
dye
polyazo dye
production
parts
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 CH311037A publication Critical patent/CH311037A/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     I3auptpatent    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., dass man 1     Mol    der     Diazoverbindung     aus dem     Aminodisazofarbstoff,    welchen man  durch Kuppeln von     diazotierter    1-Amino-         naphthalin-5-sulfonsäure    mit     l.-Aminonaph-          thalin    - 7 -     sulfonsäure,

          Weiterdiazotieren    und  Kuppeln mit     1-Amino-2-methoxy-5-methyl-          benzol    erhält, mit 1     Mol    der Kupferkomplex  verbindung der Zusammensetzung  
EMI0001.0016     
    kuppelt und den erhaltenen     Polyazofarbstoff     mit einem kupferabgebenden Mittel unter  solchen     Bedingungen    behandelt,     da.ss    die       llethoxygruppe    aufgespalten wird.  



  Im nachfolgenden Beispiel bedeuten die  Teile Gewichtsteile.  



       Beispiel:     87,7 Teile des     Aminodisazofarbstoffes,        wel-          t#hen    man durch Kuppeln von     diazotierter     1-     A.minonaphthalin    - 5 -     sulfonsäure    mit 1-         Aminonaphthalin-7-sulfonsäure,        Weiterdiazo-          tieren    und Kuppeln mit     1-Amino-2-methoxy-          5-methylbenzol    erhält, werden in 500 Teilen  Wasser angerührt.

   Man versetzt die Suspen  sion mit 7 Teilen     Natriumnitrit        und    stellt  sie bei 10-12  unter gutem Rühren durch  Zusatz von 50 Teilen konzentrierter Salzsäure  kongosauer. Nach ungefähr 2-3     Stunden    ist  die     Diazotierung        beendigt.    Die erhaltene     Di-          a7overbindung    wird mit der Lösung aus 55,2  Teilen der     Kupferkomplexverbindung    der Zu  sammensetzung  
EMI0001.0041     
      600 Teilen Wasser und 1500 Teilen     Pyridin     vereinigt. Man erwärmt die Masse 'zur Be  endigung der Kupplung noch 2 Stunden lang  auf 50-60 .

   Zur     Kupfei-Ling    des erhaltenen       Tetrakisazofarbstoffes    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 90-95 , bis sich die     Kupferkom-          plexverbindung    unter Aufspaltung der     Meth-          oxygruppe    gebildet hat. Hierauf wird der  Farbstoff in     üblielier    Weise isoliert und bei  90  getrocknet.

   Er färbt Baumwolle und Fa  sern aus regenerierter     Cellulose    in grauen    Tönen von     hervorragender        Liehteebtheit    und  guter     Wascheehtheit.  



  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 therein. That one mole of the diazo compound from the aminodisazo dye, which is obtained by coupling diazotized 1-amino-naphthalene-5-sulfonic acid with 1.-aminonaph - thalin - 7 - sulfonic acid,

          Further diazotization and coupling with 1-amino-2-methoxy-5-methyl-benzene is obtained with 1 mole of the copper complex compound of the composition
EMI0001.0016
    coupled and treated the polyazo dye obtained with a copper donor under such conditions that the llethoxy group is split.



  In the following example, the parts are parts by weight.



       Example: 87.7 parts of the aminodisazo dye, which are obtained by coupling diazotized 1-aminonaphthalene-5-sulfonic acid with 1-aminonaphthalene-7-sulfonic acid, further diazo- tation and coupling with 1-amino-2-methoxy - 5-methylbenzene is obtained, are mixed in 500 parts of water.

   The suspension is mixed with 7 parts of sodium nitrite and made Congo acidic at 10-12 with thorough stirring by adding 50 parts of concentrated hydrochloric acid. The diazotization is complete after about 2-3 hours. The di-a7o compound obtained is mixed with the solution of 55.2 parts of the copper complex compound of the composition
EMI0001.0041
      600 parts of water and 1500 parts of pyridine are combined. The mass is heated to 50-60 for a further 2 hours to end the coupling.

   A solution of 25 parts of crystallized copper sulfate, 25 parts of 250% ammonia and 100 parts of water is added to the copper of the tetrakisazo dye obtained at 90 and it is then stirred at 90-95 until the copper complex is split up the methoxy group has formed. The dye is then isolated in the usual way and dried at 90 °.

   It dyes cotton and fibers from regenerated cellulose in gray tones with excellent lightness and good washability.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer haltigen Polyazofarbstoffes, dadurch gekenn zeichnet, dass mann 1 ?41o1 der Diazoverbin- dung aus dem Aminodisazofarbstoff, welebeii man durch Kuppeln von diazotierter 1-Ainino- naphthalin- 5 -sulfonsäure mit. PATENT CLAIM: Process for the production of a copper-containing polyazo dye, characterized in that 1? 41o1 of the diazo compound from the aminodisazo dye, which is obtained by coupling diazotized 1-alinonaphthalene-5-sulfonic acid with. 1- Aminonaph- thalin-7-stilfonsätire, Weiterdiazotieren und Kuppeln mit 1-Amino-2-niet.hoxy-5-metliyl- ben7ol erhält, mit 1 111o1 der Kupferkomplex verbindung der Zusammensetzung EMI0002.0035 kuppelt und den erhaltenen Polyazofarbstoff mit einem kupferabgebenden Mittel unter sol chen Bedingungen behandelt, dass die Meth- oxygruppe aufgespalten wird. 1- Aminonaphthalin-7-stilfonsätire, further diazotization and coupling with 1-amino-2-niet.hoxy-5-methylben7ol obtained, with 11111 of the copper complex compound of the composition EMI0002.0035 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 grauen Tönen von hervor ragender Liehtechtheit und guter Waschecht heit. The new copper-containing polyazo dye dyes cotton and fibers made from regenerated cellulose in gray tones with excellent lightfastness and good washfastness.
CH311037D 1952-11-27 1952-11-27 Process for the production of a copper-containing polyazo dye. CH311037A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH311037T 1952-11-27
CH290585T 1953-05-15

Publications (1)

Publication Number Publication Date
CH311037A true CH311037A (en) 1955-11-15

Family

ID=25733044

Family Applications (1)

Application Number Title Priority Date Filing Date
CH311037D CH311037A (en) 1952-11-27 1952-11-27 Process for the production of a copper-containing polyazo dye.

Country Status (1)

Country Link
CH (1) CH311037A (en)

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