CH142654A - Process for the preparation of a trisazo dye. - Google Patents

Process for the preparation of a trisazo dye.

Info

Publication number
CH142654A
CH142654A CH142654DA CH142654A CH 142654 A CH142654 A CH 142654A CH 142654D A CH142654D A CH 142654DA CH 142654 A CH142654 A CH 142654A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
sulfonic acid
trisazo dye
green
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH142654A publication Critical patent/CH142654A/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
    • C09B31/26—Trisazo dyes from other coupling components "D"
    • C09B31/28—Heterocyclic compounds

Landscapes

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

Description

  

  Verfahren zur Darstellung eines     Trisazofarbstoffes.       Gegenstand vorliegender Erfindung ist  ein Verfahren zur Darstellung eins     Trisazo-          farbstoffes,    dadurch gekennzeichnet, dass  man den     diazotierten    Farbstoff, o-Sulfanil       säure-azo-1-naphtylamin-7-sulfosäure-azo-1-          amino-2-naphtoläthyläther-6-snlfosäure    mit       m-Aminophenyl-1    .     2-nal)htimidazol-5-oxy-        7-          sulfosäure    in Gegenwart von     Pyridin    kup  pelt.  



       Beispiel     75,1 Gewichtsteile des     Natriumsalzes    des  Farbstoffes     o-Sulfanilsäure-azo-l-naphtyl-          amin-7-sulfosäure    -     azo-1-amino-2-naphtol-          äthyläther-6-sulfosäure    werden     diazotiert    und  mit 35,5     Gewichtsteilen        m-Aminophenyl-          1    .     2-naphtimidazol-5-oxy        -7-sulfosäure    bei Ge  genwart von 50 G     ewichtsteilen    Nasser und  <B>100</B> Gewichtsteilen     Pyridin    zum Farbstoff  eiskalt vereinigt.  



  Der in der üblichen Weise isolierte  Farbstoff färbt auf Baumwolle ein Blau-    grün. Er lässt sich auf der Faser     diazotieren     und mit     1lethylphenylpyrazolon    zu einem  echten Grün entwickeln.



  Process for the preparation of a trisazo dye. The present invention relates to a process for the preparation of a trisazo dye, characterized in that the diazotized dye, o-sulfanilic acid-azo-1-naphthylamine-7-sulfonic acid-azo-1-amino-2-naphtholethyl ether-6-snlfonic acid with m-aminophenyl-1. 2-nal) htimidazole-5-oxy- 7-sulfonic acid in the presence of pyridine kup pelt.



       Example 75.1 parts by weight of the sodium salt of the dye o-sulfanilic acid-azo-1-naphthylamine-7-sulfonic acid - azo-1-amino-2-naphthol-ethyl ether-6-sulfonic acid are diazotized and 35.5 parts by weight m- Aminophenyl-1. 2-naphtimidazole-5-oxy-7-sulfonic acid combined ice-cold with the presence of 50 parts by weight of water and 100 parts by weight of pyridine to form the dye.



  The dye, isolated in the customary manner, stains cotton a blue-green. It can be diazotized on the fiber and developed into a real green with methylphenylpyrazolone.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Trisazo- farbstoffes, dadurch gekennzeichnet, dass man die Diazov erbindung des sekundären Disazo- farbstoffes, o-Sulfanilsäure--, PATENT CLAIM: Process for the preparation of a trisazo dye, characterized in that the Diazov connection of the secondary disazo dye, o-sulfanilic acid--, izo-l-naphtyl- i -imin - 7 - sulfosäure - azo-1-amino- 2 -naphtol- äthyläther-6-sulfosäure mit m-Aminophenyl- 1.2-naphtimidazol-5-oxy-7-sulfosäure in Gegenwart von Pyridin kuppelt. Der Farbstoff färbt auf Baumwolle ein Blaugrün. izo-l-naphthyl-i -imine-7-sulfonic acid-azo-1-amino-2-naphthol-ethyl ether-6-sulfonic acid with m-aminophenyl-1,2-naphtimidazole-5-oxy-7-sulfonic acid in the presence of pyridine . The dye stains cotton a blue-green. Er lässt sich auf der Faser diazo- tieren und mit llethy lphenylpyrazolon zu einem echt(,n Grün entwickeln. It can be diazotized on the fiber and developed into a real green with methylphenylpyrazolone.
CH142654D 1928-08-09 1928-08-09 Process for the preparation of a trisazo dye. CH142654A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH140100T 1928-08-09
CH142654T 1928-08-09

Publications (1)

Publication Number Publication Date
CH142654A true CH142654A (en) 1930-09-30

Family

ID=25713474

Family Applications (1)

Application Number Title Priority Date Filing Date
CH142654D CH142654A (en) 1928-08-09 1928-08-09 Process for the preparation of a trisazo dye.

Country Status (1)

Country Link
CH (1) CH142654A (en)

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