CH138227A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH138227A
CH138227A CH138227DA CH138227A CH 138227 A CH138227 A CH 138227A CH 138227D A CH138227D A CH 138227DA CH 138227 A CH138227 A CH 138227A
Authority
CH
Switzerland
Prior art keywords
azo dye
green
new azo
blue
production
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH138227A publication Critical patent/CH138227A/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
    • C09B33/12—Disazo dyes in which the coupling component is a heterocyclic compound

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstofes.       Es wurde gefunden, dass man einen neuen       Farbstoff    erhält, wenn man auf 1     Mol    des  5,5'     -Dioxy-7,7'-disulfo-1,2,2',1'-dinaphthazins     2     ATol        diazotiertes        p-Nitranilin    einwirken lässt.  



  Der erhaltene     Farbstoff    ist trocken ein  schwärzliches Pulver, löst sich in Wasser  braun, in Lauge blaugrün, in verdünnter       Sodalösung    blauviolett und mit     olivegrüner     Farbe in konzentrierter Schwefelsäure. Baum  wolle wird aus alkalischem     Glaubersalzbade,     Wolle und Seide aus sauren Bädern, in olive  grünen     Tönen    angefärbt.  



  <I>Beispiel:</I>  Man löst 12 Teile des     5,5'-Dioxy-7,7'-di-          sulfo-1,2,2',1'-dinaphthazins    mit 4 Teilen Soda  in 200 Teilen Wasser und gibt 10 Teile       Natriumbiearbonat    zu. Darauf versetzt man  mit dem     Diazokörper    aus 7 Teilen     p-Nitranilin     und kuppelt bei 6-8  bis zum Verschwinden    des     Diazokörpers.    Durch Kochsalz wird der  neue Farbstoff abgeschieden.



  Process for the preparation of a new azo dye. It has been found that a new dye is obtained if 1 mol of 5,5'-dioxy-7,7'-disulfo-1,2,2 ', 1'-dinaphthazins 2 ATol is allowed to act on diazotized p-nitroaniline .



  The dye obtained is a blackish powder when dry, dissolves brown in water, blue-green in lye, blue-violet in dilute soda solution and with an olive-green color in concentrated sulfuric acid. Cotton is made from alkaline Glauber's salt bath, wool and silk from acidic baths, dyed in olive-green tones.



  <I> Example: </I> 12 parts of 5,5'-dioxy-7,7'-disulfo-1,2,2 ', 1'-dinaphthazine are dissolved with 4 parts of soda in 200 parts of water and adds 10 parts of sodium carbonate. Then add the diazo body made of 7 parts of p-nitroaniline and couple at 6-8 until the diazo body disappears. The new dye is deposited by means of table salt.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man auf 1 Mol des 5,5'-Dioxy-7,7'-disulfo- 1,2,2',1'-dinaphthazins 2 Mol diazotiertes p- Nitranilin einwirken lässt. Der erhaltene Farbstoff ist trocken ein schwärzliches Pulver, löst sich in Wasser braun, in Lauge blaugrün, in verdünnter Sodalösung blauviolett und mit olivegrüner Farbe in konzentrierter Schwefelsäure. Claim: Process for the preparation of a new azo dye, characterized in that 2 mol of diazotized p-nitroaniline are acted on 1 mol of 5,5'-dioxy-7,7'-disulfo-1,2,2 ', 1'-dinaphthazine leaves. The dye obtained is a blackish powder when dry, dissolves brown in water, blue-green in lye, blue-violet in dilute soda solution and with an olive-green color in concentrated sulfuric acid. Baum volle wird aus alkalischem Glaubersalzbade, Wolle und Seide aus sauren Bädern, in olive grünen Tönen angefärbt. Tree full is made from alkaline Glauber's salt bath, wool and silk from acid baths, dyed in olive green tones.
CH138227D 1928-09-08 1928-09-08 Process for the production of a new azo dye. CH138227A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH138227T 1928-09-08
CH136650T 1929-11-30

Publications (1)

Publication Number Publication Date
CH138227A true CH138227A (en) 1930-02-15

Family

ID=25712781

Family Applications (1)

Application Number Title Priority Date Filing Date
CH138227D CH138227A (en) 1928-09-08 1928-09-08 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH138227A (en)

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