CH211024A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH211024A
CH211024A CH211024DA CH211024A CH 211024 A CH211024 A CH 211024A CH 211024D A CH211024D A CH 211024DA CH 211024 A CH211024 A CH 211024A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
new
red
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 CH211024A publication Critical patent/CH211024A/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

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     azofarbstdfes.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man     diazotiertes          2.5-Diehlor-l-aminobenzol    mit dem     2-Oxy-          2'-        (4"-chlor)        -phenyl-5.6-pseudonaphthazimid     vereinigt.  



  Der neue Farbstoff bildet ein rotbraunes,  in Wasser unlösliches Pulver. Auf geeigne  ten Substraten, wie z. B. Baumwolle, her  gestellt, färbt er diese in echten rotbraunen  Tönen.  



       Beispiel:     16.2 Teile des     2.5-Dichlor-l-aminobenzols     werden wie üblich     diazotiert    und in eine  Lösung von 29.5 Teilen     2-Oxy-2'-(4"-chlor)-          phenyl-5.6-pseudonaphthazimid,    40 Teilen       äül        iger        Natriumhydroxydlösung,    15 Teilen  Soda in 1000 Teilen Wasser eingetragen. Der    gebildete Farbstoff fällt sofort aus. Der rot  braune Niederschlag wird filtriert und ge  trocknet.



  Process for the production of a new azo color. It has been found that a new azo dye is obtained when diazotized 2.5-diehlor-1-aminobenzene is combined with 2-oxy-2'- (4 "-chlor) -phenyl-5.6-pseudonaphthazimide.



  The new dye forms a red-brown powder that is insoluble in water. On appro priate substrates such. B. Cotton, made ago, he dyes them in real red-brown tones.



       Example: 16.2 parts of 2.5-dichloro-1-aminobenzene are diazotized as usual and poured into a solution of 29.5 parts of 2-oxy-2 '- (4 "-chlor) - phenyl-5.6-pseudonaphthazimide, 40 parts of aqueous sodium hydroxide solution, 15 Parts of soda are added to 1000 parts of water. The dye formed precipitates out immediately. The red-brown precipitate is filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 2.5-Dichlor-l-aminobenzol mit dem 2-Oxy-2'-(4"-chlor)-phenyl-5.6- pseudonaphthazimid vereinigt. Der neue Farbstoff bildet ein rotbraunes Pulver, das in Wasser unlöslich ist. Auf ge eigneten Substraten, wie z. B. Baumwolle, hergestellt, färbt er diese in echten rot braunen Tönen. PATENT CLAIM: Process for the production of a new azo dye, characterized in that diazotized 2.5-dichloro-1-aminobenzene is combined with 2-oxy-2 '- (4 "-chlor) -phenyl-5.6-pseudonaphthazimide. The new dye forms a red-brown powder that is insoluble in water, produced on suitable substrates such as cotton, it dyes them in real red-brown tones.
CH211024D 1937-06-30 1937-06-30 Process for the production of a new azo dye. CH211024A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH211024T 1937-06-30
CH208952T 1937-06-30

Publications (1)

Publication Number Publication Date
CH211024A true CH211024A (en) 1940-08-15

Family

ID=25724640

Family Applications (1)

Application Number Title Priority Date Filing Date
CH211024D CH211024A (en) 1937-06-30 1937-06-30 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH211024A (en)

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