CH224128A - Process for the preparation of a primary disazo dye. - Google Patents

Process for the preparation of a primary disazo dye.

Info

Publication number
CH224128A
CH224128A CH224128DA CH224128A CH 224128 A CH224128 A CH 224128A CH 224128D A CH224128D A CH 224128DA CH 224128 A CH224128 A CH 224128A
Authority
CH
Switzerland
Prior art keywords
dye
blue
preparation
amino
diazo
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 CH224128A publication Critical patent/CH224128A/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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • C09B33/08—Disazo dyes in which the coupling component is a hydroxy-amino compound
    • C09B33/10—Disazo dyes in which the coupling component is a hydroxy-amino compound in which the coupling component is an amino naphthol

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 221927.         'Verfahren    zur Herstellung eines primären     Bisazofarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines primären       Disazofarbstoffes,    dadurch     gekennzeichnet,          dass    man .die     Diazoverbindung    von     1-Amino-          2    -chlor- 6     -nitrobenzol    in saurem Medium  mit     1-Ami,no-8-oxynaphthalin-3,6-disulfon-          säure    und den so .erhaltenen     Mon:

  oazofarb-          stoff    in alkalischem Medium mit .der     Diazo-          verbindung    aus     1-Amino    - 4 - N -     eyolohexyl-          eaprinyl-aminobenzol        vereinigt.     



  Der so erhaltene     Disazofarbstoff    ist ein  dunkles Pulver, das sich in Wasser mit  blauer, in     konzentrierter        Schwefelsäure    mit  blaugrüner Farbe löst, und färbt Wolle, Seide  und künstliche Fasern auf     Caseinbasis    in  blauschwarzen Tönen. Die Färbungen be  sitzen sehr     ;gute    Wasch-,     Walk-,        Schweiss-,     Seewasser- und     Lichtechtheit.     



  <I>Beispiel:</I>  <B>1,8</B> Teile     1-Amino    - 2     -chlor    -16     -,nitrobenzol     werden     qdurch    Eintragen in     eine    Mischung    aus etwa 40 Teilen     :Schwefelsäure    94%ig  und '29 Teilen     Nitrosyls.chwefelsäure    45%ig  bei<B>5-10'</B>     diazotiert.    Die     Lösung    wird auf  Eis ,gegossen.

   Nach     Entfernung        der    über  schüssigen     salpeterigen,Säure        und    Filtrieren  lässt man. die so     erhaltene        Diazolüsung    in  eine mineralsaure Lösung von 81,9 Teilen     1-          Amino-@8-oxynap,hthalin-3;6        :

  disu,Ifons5,urelau-          fen.    Nachbeendeter     Bildung        .des        Monoazo-          farbstoffes    wird dieser     abgeschieden    und mit       überschüssigem        Natriumcarbonot        wieder    in  Lösung .gebracht. In diese Lösung lässt man  eine aus 34,4 Teilen     1-Amilno-4-N-cyclo-          hexyl-,caprinyl-aminobenzol        hergestellte        Di-          azolösung    fliessen.

   Der     Disazofarbstoff    wird  abgeschieden, gewaschen und getrocknet.



      Additional patent to main patent No. 221927. Process for the preparation of a primary bisazo dye. The present patent relates to a process for the preparation of a primary disazo dye, characterized in that the diazo compound of 1-amino-2-chloro-6-nitrobenzene in an acidic medium with 1-ami, no-8-oxynaphthalene-3,6 -disulfonic acid and the mon:

  oazo dye combined in an alkaline medium with the diazo compound of 1-amino-4-N-eyolohexyl-eaprinyl-aminobenzene.



  The disazo dye thus obtained is a dark powder which dissolves in water with a blue color and in concentrated sulfuric acid with a blue-green color, and dyes wool, silk and artificial fibers based on casein in blue-black shades. The dyeings are very good; good fastness to washing, fulling, perspiration, sea water and light.



  <I> Example: </I> <B> 1.8 </B> parts of 1-amino - 2-chloro -16 -, nitrobenzene are q by adding to a mixture of about 40 parts: sulfuric acid 94% and '29 Share nitrosylsulfuric acid 45% diazotized at <B> 5-10 '</B>. The solution is poured onto ice.

   After removing the excess nitric acid, and filtering, it is left. the diazo solution thus obtained in a mineral acid solution of 81.9 parts of 1- Amino- @ 8-oxynap, hthalin-3; 6:

  disu, ifons5, run across. When the formation of the monoazo dye has ended, it is deposited and brought back into solution with excess sodium carbonate. A diazole solution prepared from 34.4 parts of 1-amino-4-N-cyclohexyl-, caprinyl-aminobenzene is allowed to flow into this solution.

   The disazo dye is deposited, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines primä ren Disazofarbstoffes, dadurch gekennzeich net, dass man die Diazovembindung von 1- Amiuo-2-chlor=6-nitrobenzol in sauren Me- dium mit 1-Amino-8-oxynaphthalin-3; PATENT CLAIM: Process for the preparation of a primary disazo dye, characterized in that the diazo-2-chloro = 6-nitrobenzene is diazo-bonded in acidic medium with 1-amino-8-oxynaphthalene-3; 6-di- sulfonsäure und den so erhaltenen Monoazo- farbstoff in alkalischem Medium mit der Diazoverbindung aus 1-Amino-4-N-cyclo- hegyl-caprinyl-aminobenzol vereinigt. . 6-disulfonic acid and the monoazo dye thus obtained are combined in an alkaline medium with the diazo compound of 1-amino-4-N-cyclohegyl-caprinyl-aminobenzene. . Der so erhaltene Dieazofarbstoff ist ein dunkles Pulver, das sich in Wasser mit blauer, in konzentrierter Schwefelsäure mit blaugrüner Farbe löst, und färbt Wolle, Seide und künstliche Fasern auf Caseinbasis in to blauschwarzen Tönen. Die Färbungen be sitzen sehr ,gute Wasch-, Walk-, Schweiss-, Seewasser- und Lichteohtheit. The thus obtained dieazo dye is a dark powder that dissolves in water with a blue color and in concentrated sulfuric acid with a blue-green color, and dyes wool, silk and artificial fibers based on casein in blue-black shades. The dyeings have very, good washing, fulling, perspiration, seawater and light resistance.
CH224128D 1940-09-07 1941-07-18 Process for the preparation of a primary disazo dye. CH224128A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE224128X 1940-09-07
CH221927T 1941-07-18

Publications (1)

Publication Number Publication Date
CH224128A true CH224128A (en) 1942-10-31

Family

ID=25726570

Family Applications (1)

Application Number Title Priority Date Filing Date
CH224128D CH224128A (en) 1940-09-07 1941-07-18 Process for the preparation of a primary disazo dye.

Country Status (1)

Country Link
CH (1) CH224128A (en)

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