CH208951A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH208951A
CH208951A CH208951DA CH208951A CH 208951 A CH208951 A CH 208951A CH 208951D A CH208951D A CH 208951DA CH 208951 A CH208951 A CH 208951A
Authority
CH
Switzerland
Prior art keywords
azo dye
new azo
production
red
brown
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 CH208951A publication Critical patent/CH208951A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden,     daB    ein neuer     Azo-          farbstoff    hergestellt werden kann, wenn     man          diazotiertes        2-Nitro-l-aminobenzol        mit    2,3  Ogynaphthoesäure-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-          besonedere    auch lichtechten rotbraunen Tönen.

           Beispiel:     13,8     Teile        2-Nitro-l-aminobenzol        (i/l.    Mal)  werden wie üblich     diazotiert    und in eine  Lösung von 38,8 Teilen     2,3-Ogynaphthoe-          säuTe-3'-pyreno1id        (1/1o        Mol),    100     Teilen        Na-          triumhydrogydlösung    von<B>36'</B>     B6,    15 Teilen       Natriumacetat        und.    2000 Teilen Wasser ein-         ,

  getragen.    Der gebildete     Farfstoff    fällt sofort  aus. Er     wird        abfiltriert,    mit     Wasser    ge  waschen und     getrocknet.  



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



  The new azo dye forms a red-brown powder that is insoluble in water. On suitable substrates, such as. If, for example, cotton is produced, he dyes it in very genuine, especially lightfast, red-brown tones.

           Example: 13.8 parts of 2-nitro-1-aminobenzene (1/1 times) are diazotized as usual and poured into a solution of 38.8 parts of 2,3-ogynaphthoic acid-3'-pyreno1ide (1/10 mol ), 100 parts sodium hydrogen solution of <B> 36 '</B> B6, 15 parts of sodium acetate and. 2000 parts of water,

  carried. The dye formed precipitates immediately. It is filtered off, washed ge with water and dried.

Claims (1)

PATENTANSPRUCH: 'Verfahren zur Herstellung eines, neuen Azofarbstoffes, .dadurch ,gekennzeichnet, daB man diazotiertes 2-I\Titro-l-aminobenzol mit 2,3-Ogynaphthoesäure-3'-pyrenolid vereinigt. Der neue Azofarbstoff bildet ein rotbrau nes, in Wasser unlösliches Pulver. Auf geeig neten Substraten, wie z. B. PATENT CLAIM: A process for the preparation of a new azo dye, characterized in that diazotized 2-I \ titro-1-aminobenzene is combined with 2,3-ogynaphthoic acid-3'-pyrenolide. The new azo dye forms a red-brown, water-insoluble powder. On suitable substrates such. B. Baumwolle, her- gestellt, färbt er diese in sehr echten, ins besondere auch lichtechten rotbraunen Tönen. Cotton, produced, he dyes them in very genuine, especially lightfast, red-brown tones.
CH208951D 1937-06-02 1937-06-02 Process for the production of a new azo dye. CH208951A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH208951A true CH208951A (en) 1940-03-15

Family

ID=4446305

Family Applications (1)

Application Number Title Priority Date Filing Date
CH208951D CH208951A (en) 1937-06-02 1937-06-02 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH208951A (en)

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