CH203612A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH203612A
CH203612A CH203612DA CH203612A CH 203612 A CH203612 A CH 203612A CH 203612D A CH203612D A CH 203612DA CH 203612 A CH203612 A CH 203612A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
new
scarlet
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 CH203612A publication Critical patent/CH203612A/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     Azofarbstofes.            Fis    wurde     gefunden"dass    man     einen    neuen       Azofarbstoff        erhält,    wenn man     diazotiertes          3-Amino,phthals@äure-N-iäthyl-imid    mit :dem  2,3 -     Ogynaphthoesäure    - 2' -     äthogyanilid    ver  einigt.  



  Der neue Farbstoff stellt ein scharlach  rotes, in Wasser unlösliches Pulver dar. Auf  geeigneten Substraten, wie z.     B.        Baumwolle,     hergestellt, färbt er diese in echten, schar  lachroten Tönen.  



       Beispiel:     19 Teile des 3 -     Amino    -     phthalsäure    -     N-          äthyl-imids    werden wie üblich     diazotiert    und  in eine Lösung von 30,7 Teilen     2,3-Ogy-          naphthoesäure    - 2' -     äthogyanilid,    40 Teilen  30%iger     Natriumhydrogydlösung,    15 Teilen  Soda in 1000     Teilen    Wasser eingetragen.    Der gebildete Farbstoff fällt sofort aus. Der  scharlachrote Niederschlag wird filtriert und  getrocknet.



  Process for the preparation of a new azo dye. It has been found that a new azo dye is obtained if diazotized 3-amino, phthalic acid-N-ethyl-imide is combined with: 2,3 - ogynaphthoic acid - 2 '- ethogyanilide.



  The new dye is a scarlet red powder that is insoluble in water. On suitable substrates, e.g. B. Cotton, produced, he dyes them in real, sharp, laugh-red tones.



       Example: 19 parts of 3-amino-phthalic acid-N-ethyl-imide are diazotized as usual and poured into a solution of 30.7 parts 2,3-ogynaphthoic acid-2 '-ethogyanilide, 40 parts 30% sodium hydrogen solution, 15 Parts of soda added to 1000 parts of water. The dye formed precipitates immediately. The scarlet precipitate is filtered and dried.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 3 - Amino - phthalsäure - N- äthyl-imid mit dem 2,3-Ogynaphthoesäure- 2'-äthogyanilid vereinigt. Der neue Farbstoff bildet ein scharlach rotes Pulver, das in Wasser unlöslich ist. Auf, geeigneten Substraten, wie z. B. Baum wolle, hergestellt, färbt er diese in echten, scharlachroten Tönen. PATENT CLAIM Process for the production of a new azo dye, characterized in that diazotized 3 - amino - phthalic acid - N-ethyl-imide is combined with 2,3-ogynaphthoic acid-2'-ethogyanilide. The new dye forms a scarlet red powder that is insoluble in water. On suitable substrates, such as. B. tree wool, if he dyes it in real, scarlet tones.
CH203612D 1936-11-16 1936-11-16 Process for the production of a new azo dye. CH203612A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH203612T 1936-11-16
CH200998T 1938-11-15

Publications (1)

Publication Number Publication Date
CH203612A true CH203612A (en) 1939-03-15

Family

ID=25723635

Family Applications (1)

Application Number Title Priority Date Filing Date
CH203612D CH203612A (en) 1936-11-16 1936-11-16 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH203612A (en)

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