CH187911A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH187911A
CH187911A CH187911DA CH187911A CH 187911 A CH187911 A CH 187911A CH 187911D A CH187911D A CH 187911DA CH 187911 A CH187911 A CH 187911A
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 CH187911A publication Critical patent/CH187911A/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

  

      Zusatzpatent    zum     Hauptpatent    Nr. 185145.    Verfahren zur Herstellung eines neuen     Azofarbsto$es.       Es wurde gefunden, dass man einen neuen       Farbstoff    erhält, der der Formel  
EMI0001.0005     
         entpricht,    wenn man     diazotiertes        4-Amino-          naphthalin    - 2'-     äthoxy    -1.1'-     azobenzol    mit 3  Oxy-1.2-benzofluorenon kuppelt.  



  Der neue     Farbstoff    bildet ein schwarzes  Pulver. Auf geeigneten Substraten, wie zum  Beispiel pflanzlichen Fasern, hergestellt, färbt  er diese in echten schwarzen Tönen.  



  <I>Beispiel:</I>  27,5 Teile     4-Aminor)aphthalin-2'-äthoxy-          1.1'-azobenzol    werden wie üblich     diazotiert     und in eine Lösung von 24,6 Teilen des       3-Oxy-1.2-benzofluorenons,        50        Teilen        30        %-          iger    Natronlauge, 30 Teilen Soda und 2000  Teilen Wasser eingetragen. Der gebildete         Farbstoff    fällt sofort aus. Der schwarze  Niederschlag wird filtriert und getrocknet.



      Supplementary patent to main patent No. 185145. Process for the production of a new azo dye. It has been found that a new dye can be obtained that has the formula
EMI0001.0005
         corresponds if one couples diazotized 4-amino naphthalene-2'-ethoxy -1.1'-azobenzene with 3-oxy-1,2-benzofluorenone.



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



  <I> Example: </I> 27.5 parts of 4-amino) aphthalene-2'-ethoxy-1.1'-azobenzene are diazotized as usual and dissolved in a solution of 24.6 parts of 3-oxy-1,2-benzofluorenone, 50 parts of 30% sodium hydroxide solution, 30 parts of soda and 2000 parts of water entered. The dye formed precipitates immediately. The black precipitate is filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, der der Formel EMI0001.0023 entspricht; dadurch gekennzeichnet, dass di- azotiertes 4-Amirionaphthalirr2'-äthoxy-1.1'- azobenzol mit 3 - Oxy - 1 . 2 - benzofluorenon kuppelt. Der neue Farbstoff bildet ein schwarzes Pulver. Auf geeigneten Substraten, wie zum Beispiel pflanzlichen Fasern, hergestellt, färbt er diese in echten schwarzen Tönen. PATENT CLAIM: Process for the production of a new dye, that of the formula EMI0001.0023 corresponds to; characterized in that diazotized 4-Amirionaphthalirr2'-ethoxy-1.1'-azobenzene with 3 - Oxy - 1. 2 - benzofluorenone couples. The new dye forms a black powder. Produced on suitable substrates, such as vegetable fibers, he dyes them in real black tones.
CH187911D 1934-10-13 1934-10-13 Process for the production of a new azo dye. CH187911A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH187911T 1934-10-13
CH185145T 1934-10-13

Publications (1)

Publication Number Publication Date
CH187911A true CH187911A (en) 1936-11-30

Family

ID=25721147

Family Applications (1)

Application Number Title Priority Date Filing Date
CH187911D CH187911A (en) 1934-10-13 1934-10-13 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH187911A (en)

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