CH185145A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH185145A
CH185145A CH185145DA CH185145A CH 185145 A CH185145 A CH 185145A CH 185145D A CH185145D A CH 185145DA CH 185145 A CH185145 A CH 185145A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
new
new dye
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 CH185145A publication Critical patent/CH185145A/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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/12—Disazo dyes from other coupling components "C"
    • C09B31/14—Heterocyclic components
    • 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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Farbstoff    erhält, welcher der Formel  
EMI0001.0003     
    entspricht, wenn man dianotiertes     4-Amirro-          5-methoxy    - 2 -     methyl-4'-        chlor-1    . 1'-     azobenzol     mit     3-Oxy-1        .2-benzofluorenon    kuppelt.  



  Der neue Farbstoff bildet ein schwarzes  Pulver. Auf geeigneten Substraten, wie z. B.  pflanzlichen Fasern, hergestellt, färbt er diese  in echten schweren Tönen.  



  <I>Beispiel:</I>  27,5 Teile     4-Amirro-5-methoxy-2-methyl-          4'-chlor-1.1'-azobenzol    werden wie üblich  dianotiert und in eine Lösung von 24,6 Tei  len des     3-Oxy-1.        2-benzofluorenons,    50 Teilen  30     o/oiger    Natronlauge, 30 Teilen Soda und  2000 Teilen Wasser eingetragen. Der gebil-         dete    Farbstoff fällt sofort aus. Der schwarze  Niederschlag wird filtriert und getrocknet.



  Process for the production of a new azo dye. It has been found that a new dye is obtained which has the formula
EMI0001.0003
    corresponds if one dianotated 4-Amirro-5-methoxy-2-methyl-4'-chloro-1. 1'-azobenzene couples with 3-oxy-1 .2-benzofluorenone.



  The new dye forms a black powder. On suitable substrates, such as. B. vegetable fibers, he dyes them in real heavy tones.



  <I> Example: </I> 27.5 parts of 4-amirro-5-methoxy-2-methyl-4'-chloro-1.1'-azobenzene are dianotized as usual and poured into a solution of 24.6 parts of the 3rd -Oxy-1. 2-benzofluorenone, 50 parts of 30% sodium hydroxide solution, 30 parts of soda and 2000 parts of water. The dye formed precipitates immediately. The black precipitate is filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, welcher der Formel EMI0001.0017 entspricht, dadurch gekennzeichnet, dass man dianotiertes 4-Amino-5-methoxy-2-methyl-4'- chlor-1.1'-azobenzol mit 3-Oxy-1.2-benzo- fluorenon kuppelt. Der neue Farbstoff bildet ein schwarzes Pulver. Auf geeigneten Substraten, wie z. B. pflanzlichen Fasern, hergestellt, färbt er diese in echten schwarzen Tönen. PATENT CLAIM: Process for the production of a new dye, which of the formula EMI0001.0017 corresponds, characterized in that dianotated 4-amino-5-methoxy-2-methyl-4'-chloro-1,1'-azobenzene is coupled with 3-oxy-1,2-benzofluorenone. The new dye forms a black powder. On suitable substrates, such as. B. vegetable fibers produced, he dyes them in real black tones.
CH185145D 1934-10-13 1934-10-13 Process for the production of a new azo dye. CH185145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH185145T 1934-10-13

Publications (1)

Publication Number Publication Date
CH185145A true CH185145A (en) 1936-07-15

Family

ID=4433507

Family Applications (1)

Application Number Title Priority Date Filing Date
CH185145D CH185145A (en) 1934-10-13 1934-10-13 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH185145A (en)

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