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CH227497A - Process for the preparation of a metal-containing substantive azo dye. - Google Patents

Process for the preparation of a metal-containing substantive azo dye.

Info

Publication number
CH227497A
CH227497A CH227497DA CH227497A CH 227497 A CH227497 A CH 227497A CH 227497D A CH227497D A CH 227497DA CH 227497 A CH227497 A CH 227497A
Authority
CH
Switzerland
Prior art keywords
metal
azo dye
preparation
dye
parts
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz A G
Original Assignee
Sandoz Ag
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 Sandoz Ag filed Critical Sandoz Ag
Publication of CH227497A publication Critical patent/CH227497A/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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/16—Trisazo dyes

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent Nr. 222797.    Verfahren zur Darstellung eines metallhaltigen     substantiven        Azofarbstoifes.       Das vorliegende Patent betrifft ein Ver  fahren zur Darstellung eines metallhaltigen         substantiven        Azofarbstoffes    und ist dadurch  gekennzeichnet, dass man den     Disazofarbstoff     der Formel  
EMI0001.0006     
         diazotiert,    mit     2-Phenylamino-5-oxynaphtha-          lin-7-sulfonsäure    kuppelt und das Kupp  lungsprodukt in den     Kupferkomplex    über  führt.

      <I>Beispiel:</I>  63,7 Teile des     Disazofarbstoffes    der For  mel  
EMI0001.0012     
      werden mit 6,9 Teilen     Natriumnitrit    und  25 Teilen Salzsäure     diazotiert    und mit einer  wässerigen Lösung von 31,5 Teilen     2-Phe-          nylamino-5-oxynaphthalin-7-sulfonsäure    in  Gegenwart von 50 Teilen     Natriumbicarbonat     und 50 Teilen technischem     Pyridinbasen-          gemisch    in der Kälte gekuppelt. Nach Zu  satz von Salz wird filtriert. Der Rückstand  wird wieder in Wasser gelöst und mit 25  Teilen Kupfersulfat in Gegenwart von Na  triumacetat in der Wärme 'in die Kupfer  verbindung übergeführt.

   Der     ausgesalzene.     filtrierte und getrocknete Farbstoff stellt ein  bronzierendes Pulver dar, das Baumwolle    sowie Kunstseide aus regenerierter Zellulose  sehr wasch- und lichtecht lebhaft blau färbt  und ein ausgezeichnetes Ziehvermögen be  sitzt.  



  Die     Überführung    in den     Kupferkomplex     kann mit     ebensogutem    Ergebnis beispiels  weise auch mit Kupfersulfat in Gegenwart  von Ammoniak vorgenommen werden.



  Additional patent to the main patent No. 222797. Process for the production of a metal-containing substantive azo dye. The present patent relates to a process for the preparation of a metal-containing substantive azo dye and is characterized in that the disazo dye of the formula
EMI0001.0006
         diazotized, coupled with 2-phenylamino-5-oxynaphthaline-7-sulfonic acid and the coupling product leads to the copper complex.

      <I> Example: </I> 63.7 parts of the disazo dye of the formula
EMI0001.0012
      are diazotized with 6.9 parts of sodium nitrite and 25 parts of hydrochloric acid and with an aqueous solution of 31.5 parts of 2-phenylamino-5-oxynaphthalene-7-sulfonic acid in the presence of 50 parts of sodium bicarbonate and 50 parts of technical pyridine base mixture in the Cold coupled. After adding salt, it is filtered. The residue is redissolved in water and converted into the copper compound with 25 parts of copper sulfate in the presence of sodium acetate in the heat.

   The salted one. Filtered and dried dye is a bronzing powder that gives cotton and rayon made from regenerated cellulose a vivid blue color that is very washable and lightfast and has excellent drawability.



  The conversion into the copper complex can be carried out with just as good result, for example, with copper sulfate in the presence of ammonia.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines metall haltigen Substantiven Azofarbstoffes, da durch gekennzeichnet, da,ss man den Disazo- fa.rbstoff der Formel EMI0002.0017 diazotiert, mit 2-Phenylamino-5-oxynaphtha- lin-7-sulfonsäure kuppelt und das Kupp lungsprodukt in den Kupferkomplex über führt. PATENT CLAIM: Process for the representation of a metal-containing nouns azo dye, characterized by the fact that one ss the disazo dye of the formula EMI0002.0017 diazotized, coupled with 2-phenylamino-5-oxynaphthaline-7-sulfonic acid and the coupling product leads to the copper complex. Der neue Farbstoff stellt ein bronzieren- des Pulver dar, das Baumwolle sowie Kunst- neide aus regenerierter Zellulose sehr wasch- ; und lichtecht lebhaft blau färbt und ein aus gezeichnetes Ziehvermögen besitzt. The new dye is a bronzing powder that is very washable for cotton and artificial enamel made from regenerated cellulose; and lightfast, vividly blue and has excellent drawability.
CH227497D 1941-07-14 1941-07-14 Process for the preparation of a metal-containing substantive azo dye. CH227497A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH227497T 1941-07-14
CH571334X 1941-07-14

Publications (1)

Publication Number Publication Date
CH227497A true CH227497A (en) 1943-06-15

Family

ID=25727111

Family Applications (1)

Application Number Title Priority Date Filing Date
CH227497D CH227497A (en) 1941-07-14 1941-07-14 Process for the preparation of a metal-containing substantive azo dye.

Country Status (1)

Country Link
CH (1) CH227497A (en)

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