CH211840A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH211840A
CH211840A CH211840DA CH211840A CH 211840 A CH211840 A CH 211840A CH 211840D A CH211840D A CH 211840DA CH 211840 A CH211840 A CH 211840A
Authority
CH
Switzerland
Prior art keywords
azo dye
new azo
production
red
new
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 CH211840A publication Critical patent/CH211840A/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
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/12—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group of the benzene series
    • 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
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
    • C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass ein neuer     Azo-          farbstoff    hergestellt werden kann, wenn man       diazotiertes        2,5-Dichlor-l-aminobenzol    mit       2,3-Oxynaphthoesäure-3'-pyrenolid    vereinigt.  



  Der neue     Azofarbstoff    bildet ein rot  braunes, in Wasser unlösliches Pulver. Auf  geeigneten Substraten, wie z. B. Baumwolle,  hergestellt, färbt er diese in sehr echten, ins  besondere auch lichtechten     rotbraunen    Tönen.  <I>Beispiel:

  </I>  16,2 Teile 2,5 -     Dichlor    -1-     aminobenzol          (1/,o        DZol)    werden wie üblich     diazotiert     und     in    eine Lösung von 38,8 Teilen     2,3-          Oxynaphthoesäure-3'-pyrenolid        (1/"        Mol),     100 Teilen     Natriumhydroxydlös.ung    von  <B>36'</B>     Be,    15 Teilen     Natriumacetat    und    2000 Teilen Wasser     eingetragen.    Der gebil  dete Farbstoff fällt sofort aus.

   Er wird ab  filtriert,     mit.    Wasser gewaschen und ge  trocknet.



  Process for the production of a new azo dye. It has been found that a new azo dye can be produced if diazotized 2,5-dichloro-1-aminobenzene is combined with 2,3-oxynaphthoic acid-3'-pyrenolide.



  The new azo dye forms a red-brown powder that is insoluble in water. On suitable substrates, such as. B. cotton, produced, he dyes them in very real, especially lightfast red-brown tones. <I> example:

  </I> 16.2 parts of 2,5 - dichloro -1- aminobenzene (1 /, o DZol) are diazotized as usual and in a solution of 38.8 parts of 2,3-oxynaphthoic acid-3'-pyrenolide (1 / "Mol), 100 parts of sodium hydroxide solution of <B> 36" </B> Be, 15 parts of sodium acetate and 2000 parts of water are added. The dye formed precipitates out immediately.

   It is filtered off with. Washed in water and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 2,5-Dichlor-l-aminobenzol mit 2,3-Oxynaphthoesäura-3'-pyrenolid ver einigt. Der neue Azofarbstoff bildet ein rot braunes, in Wasser unlösliches Pulver. Auf geeigneten Substraten, wie z. B. Baumwolle, hergestellt, färbt er diese in sehr echten, ins besondere auch lichtechten rotbraunen Tönen. PATENT CLAIM: Process for the preparation of a new azo dye, characterized in that diazotized 2,5-dichloro-l-aminobenzene is united with 2,3-oxynaphthoic acid-3'-pyrenolide. The new azo dye forms a red-brown powder that is insoluble in water. On suitable substrates, such as. B. cotton, produced, he dyes them in very real, especially lightfast red-brown tones.
CH211840D 1937-06-02 1937-06-02 Process for the production of a new azo dye. CH211840A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH211840T 1937-06-02
CH208951T 1937-06-02

Publications (1)

Publication Number Publication Date
CH211840A true CH211840A (en) 1940-10-15

Family

ID=25724636

Family Applications (1)

Application Number Title Priority Date Filing Date
CH211840D CH211840A (en) 1937-06-02 1937-06-02 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH211840A (en)

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