CH203603A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH203603A
CH203603A CH203603DA CH203603A CH 203603 A CH203603 A CH 203603A CH 203603D A CH203603D A CH 203603DA CH 203603 A CH203603 A CH 203603A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
new
orange
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 CH203603A publication Critical patent/CH203603A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man     diazotiertes    3  Amino-phtbalsäure-N-äthylimid mit dem     2,3-          Oxynaphthoesäure-3'-chloranilid    vereinigt.  



  Der neue Farbstoff bildet ein orangerotes,  in Wasser unlösliches Pulver. Auf geeigneten  Substraten, wie z. B. Baumwolle, hergestellt,  färbt er diese in echten orangeroten Tönen.  <I>Beispiel:</I>  19 Teile des     3-Amino-phthalsäure        N-äthyl-          imids    werden wie üblich     diazotiert    und in eine  Lösung von 29,7 Teilen 2,3 -     Oxynaphthoe-          säure-3'-chlor,anilid,    40 Teilen 30prozentiger       Natriumhydroxydlösung,    15 Teilen Soda in  1000 Teilen Wasser eingetragen. Der gebil-         dete        Farbstoff    fällt sofort aus. Der orangerote  Niederschlag wird filtriert und getrocknet.



  Process for the production of a new azo dye. It has been found that a new azo dye is obtained if diazotized 3-amino-phthalic acid-N-ethylimide is combined with 2,3-oxynaphthoic acid-3'-chloroanilide.



  The new dye forms an orange-red powder that is insoluble in water. On suitable substrates, such as. B. cotton, he dyes them in real orange-red tones. <I> Example: </I> 19 parts of 3-amino-phthalic acid N-ethyl-imide are diazotized as usual and converted into a solution of 29.7 parts of 2,3-oxynaphthoic acid-3'-chlorine, anilide, 40 parts of 30 percent sodium hydroxide solution, 15 parts of soda added to 1000 parts of water. The dye formed precipitates immediately. The orange-red precipitate is filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 3 - Amino - phthalsäure - N- äthylimid reit dem 2,3-Oxynaphthoesäure-3'- chloranilid vereinigt. Der neue Farbstoff bildet ein orangerotes Pulver, das in Wasser unlöslich ist. .Auf ge eigneten Substraten, wie z. B. Baumwolle, hergestellt, färbt er diese in echten orange roten Tönen. PATENT CLAIM: Process for the production of a new azo dye, characterized in that diazotized 3-amino-phthalic acid-N-ethylimide is combined with 2,3-oxynaphthoic acid-3'-chloranilide. The new dye forms an orange-red powder that is insoluble in water. .On suitable substrates, such as. B. Cotton, he dyes them in real orange-red tones.
CH203603D 1936-11-16 1936-11-16 Process for the production of a new azo dye. CH203603A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH203603T 1936-11-16
CH200998T 1938-11-15

Publications (1)

Publication Number Publication Date
CH203603A true CH203603A (en) 1939-03-15

Family

ID=25723626

Family Applications (1)

Application Number Title Priority Date Filing Date
CH203603D CH203603A (en) 1936-11-16 1936-11-16 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH203603A (en)

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