CH200534A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH200534A
CH200534A CH200534DA CH200534A CH 200534 A CH200534 A CH 200534A CH 200534D A CH200534D A CH 200534DA CH 200534 A CH200534 A CH 200534A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new
new azo
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 CH200534A publication Critical patent/CH200534A/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
    • C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 198138.    Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man auf     4-Methyl-          2-benzylphenol        diazotiertes        4-Amino-3.2'-          dimethyl-1    .     1'-azobenzol        einwirken    lässt.  



  Der neue Farbstoff stellt     ein    braunes Pul  ver dar; auf Baumwolle hergestellt erzeugt  der neue Farbstoff gelbbraune Töne.         Beispiel:       22,6 Teile     4-Amino-3.2'-dimethyl-1.1'-          azobenzol    werden wie üblich     diazotiert.    Die  filtrierte     Diazoniumlösung    lässt man ein  fliessen     in    eine Lösung von 19,8 Teilen     4-Me-          thyl-2-benzylphenol,    10 Teilen     Natrium-          hydrogyd,    5 Teilen     Natriumcarbonat    in  200 Teilen Wasser.

   Der     gebildete    Farbstoff         fällt    sofort aus, wird filtriert, gewaschen und  getrocknet. Er bildet ein braunes Pulver, das  aus Chlorbenzol kristallisiert bei 165 bis 167   schmilzt.



      Additional patent to main patent No. 198138. Process for the production of a new azo dye. It has been found that a new azo dye is obtained if 4-amino-3.2'-dimethyl-1 which has been diazotized onto 4-methyl-2-benzylphenol. 1'-azobenzene can act.



  The new dye is a brown powder; Made on cotton, the new dye creates yellow-brown tones. Example: 22.6 parts of 4-amino-3.2'-dimethyl-1.1'-azobenzene are diazotized as usual. The filtered diazonium solution is allowed to flow into a solution of 19.8 parts of 4-methyl-2-benzylphenol, 10 parts of sodium hydrogen, 5 parts of sodium carbonate in 200 parts of water.

   The dye formed precipitates immediately and is filtered, washed and dried. It forms a brown powder that crystallizes from chlorobenzene and melts at 165 to 167.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man auf 4-Methyl-2-benzylphenol diazotier- tes - 4-Amino-3. 2'-dimethyl-1 . 1'-azobenzol einwirken lässt. Der neue Farbstoff stellt ein braunes Pulver dar; auf Baumwolle herge stellt erzeugt der neue Farbstoff gelbbraune Töne. PATENT CLAIM: Process for the preparation of a new azo dye, characterized in that one diazotized to 4-methyl-2-benzylphenol - 4-amino-3. 2'-dimethyl-1. 1'-azobenzene can act. The new dye is a brown powder; Made on cotton, the new dye creates yellow-brown tones.
CH200534D 1936-11-16 1936-11-16 Process for the production of a new azo dye. CH200534A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH200534T 1936-11-16
CH198138T 1936-11-16

Publications (1)

Publication Number Publication Date
CH200534A true CH200534A (en) 1938-10-15

Family

ID=25723068

Family Applications (1)

Application Number Title Priority Date Filing Date
CH200534D CH200534A (en) 1936-11-16 1936-11-16 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH200534A (en)

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