CH194344A - Process for the preparation of a polyazo dye. - Google Patents

Process for the preparation of a polyazo dye.

Info

Publication number
CH194344A
CH194344A CH194344DA CH194344A CH 194344 A CH194344 A CH 194344A CH 194344D A CH194344D A CH 194344DA CH 194344 A CH194344 A CH 194344A
Authority
CH
Switzerland
Prior art keywords
dye
green
naphthol
amino
copper complex
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 CH194344A publication Critical patent/CH194344A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/36—Trisazo dyes of the type

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

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr. 188026.    Verfahren zur Herstellung eines     Polyazofarbstoffes.       Vorliegendes     Patent    bezieht sich auf     ein     Verfahren zur     Herstellung    eines     Polyazo-          farbstoffes,    dadurch gekennzeichnet,     dass        mar,          dianotierte        4-Aminostilben-4'-azo-anisol-2.2'-          disulfonsäure    mit     1-Amino-2-naphthal-äthyl-          äther=6-sulfonsäure    kuppelt,

   den so erhalte  nen     Aminodisazofarbstoff        dianotiert    und in  alkalischer Lösung mit     1-Acetylamino-8-          naphthol-4-su@lfonsäure    kuppelt.  



  Der so erhaltene     Farbstoff    färbt Baum  wolle grün, das bei Überführung des Farb  stoffes in die     Kupferkomplegverbindung    in       sehr        lichtechtes    Olivgrün     übergeht.    Die Lö  sungsfarbe der     gupferkomplegverbindung    in       konzentrierter        Schwefelsäure    ist violett  braun, in Wasser     gelbstichig    grün.  



  <I>Beispiel:</I>       ,51,1    Teile     4-Aminostilben-4'-azo=anisol-          2.2'-disulfonsäure        werden    in der üblichen       Weise        dianotiert    und .in     sodaalkalischer    Lö-         sung    mit 28,9 Teilen     1-amino-2-naphthol-          äthyläther-6-sulfonsaurem    Natrium gekup  pelt     und    gegebenenfalls der     Farbstoff    durch       Umlösen    von     überschüssiger    Kupplungs  komponente befreit.

   Dann wird mit 6,9 Tei  len     Natriumnitrit    und 30     Teilen    Salzsäure  vom     spezifischen    Gewicht     1,1,8    dianotiert  und in     pyridinhaltiger    Lösung mit 30 Teilen       1-aoetylamino-8-naphthol-4-suHonsaurem        Na-          trium    zusammengebracht. Nach     Beendigung     .der Kupplung wird     ,der    Farbstoff durch Aus  salzen abgeschieden.



      Additional patent to main patent no. 188026. Process for the production of a polyazo dye. The present patent relates to a process for the production of a polyazo dye, characterized in that mar, dianotated 4-aminostilbene-4'-azo-anisole-2.2'-disulfonic acid with 1-amino-2-naphthalethyl ether = 6 -sulfonic acid couples,

   the amino disazo dye obtained in this way is dianotized and coupled in an alkaline solution with 1-acetylamino-8-naphthol-4-su @ lfonic acid.



  The dye obtained in this way dyes cotton green, which turns into a very lightfast olive green when the dye is converted into the copper complex. The solution color of the copper complex compound in concentrated sulfuric acid is purple-brown, in water it is yellow-tinged green.



  <I> Example: </I>, 51.1 parts of 4-aminostilbene-4'-azo = anisole-2.2'-disulfonic acid are dianotized in the usual way and in a soda-alkaline solution with 28.9 parts of 1-amino -2-naphthol- äthyläther-6-sulfonic acid sodium gekup pelt and optionally the dye freed from excess coupling component by dissolving.

   Then 6.9 parts of sodium nitrite and 30 parts of hydrochloric acid with a specific gravity of 1,1,8 are dianotized and brought together in a pyridine-containing solution with 30 parts of 1-aoetylamino-8-naphthol-4-suHonic acid sodium. When the coupling is complete, the dye is deposited by salting out.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Poly- azofarbstoffes, dadurch gekennzeichnet, @dass man dianotierte 4-Arnin: PATENT CLAIM: Process for the production of a poly azo dye, characterized in that one dianotated 4-amine: ostilben-4'=azo-anisol- 2.2'-disulfosäure mit 1-Amino-2-naphthol- äthyläther-6-sulfonsäure kuppelt, den so er haltenen Aminodisazofarbstoff dianotiert und in alkalischer Lösung mit 1-Acetylamino,8- naphthol-4-sulfonsäure kuppelt. ostilbene-4 '= azo-anisole-2.2'-disulfonic acid with 1-amino-2-naphthol- äthyläther-6-sulfonic acid couples, the so he obtained amino disazo dye and in alkaline solution with 1-acetylamino, 8-naphthol-4- sulfonic acid couples. Der so erhaltene Farbstoff färbt Baum wolle grün, das bei Überführung des Farb- stoffes in die gupferkomplegverbindung in sehr lichtechtes Olivgrün. übergeht. Die Lö sungsfarbe der gupferkomplegverbindung in. konzentrierter Schwefelsäure ist violettbra=, in Wasser gelbstlahig grün. The dye obtained in this way dyes cotton green, and when the dye is converted into the copper complex it turns into a very lightfast olive green. transforms. The solution color of the copper complex compound in concentrated sulfuric acid is violet-brown, in water it is yellowish green.
CH194344D 1935-12-04 1935-12-04 Process for the preparation of a polyazo dye. CH194344A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH188026T 1935-12-04
CH194344T 1935-12-04

Publications (1)

Publication Number Publication Date
CH194344A true CH194344A (en) 1937-11-30

Family

ID=25721603

Family Applications (1)

Application Number Title Priority Date Filing Date
CH194344D CH194344A (en) 1935-12-04 1935-12-04 Process for the preparation of a polyazo dye.

Country Status (1)

Country Link
CH (1) CH194344A (en)

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