CH211011A - Process for the preparation of a disazo dye. - Google Patents

Process for the preparation of a disazo dye.

Info

Publication number
CH211011A
CH211011A CH211011DA CH211011A CH 211011 A CH211011 A CH 211011A CH 211011D A CH211011D A CH 211011DA CH 211011 A CH211011 A CH 211011A
Authority
CH
Switzerland
Prior art keywords
preparation
disazo dye
dye
alkaline solution
disazo
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH211011A publication Critical patent/CH211011A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/24—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl amine

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum     Hauptpatent    Nr. 208539.    Verfahren zur Herstellung eines     Disazofarbstoffes.       Gegenstand des     Hauptpatentes    ist -ein  Verfahren zur     Herstellung    eines     Disazofarb-          etoffes,    welches dadurch     gekennzeichnet    ist,  dass man     tetrazotierbes        4.4'-Diaminodiphenyl-          amin    in alkalischer Lösung mit je 1     Mol          1-Äthylamino-8-oxynaphthalin-3    .

       6-,disu,Ifon-          säure    und     3-Oxydiphenylamin    vereinigt.  



  Wie nun weiter gefunden wurde, erhält  man einen Farbstoff von     ähnlichen    Eigen  schaften, wenn man     tebrazohertes        4.4'-Di-          aminodiphenylamin    in     alkalisoher    Lösung  mit je 1     Mol        1-Benzylamino-8-oxynaphthaJin-          3.6-disulfonsäure    und     1.3-Dioxybenzol     vereinigt.  



       Beispiel:     19,9 Teile     4.4'-Diaminodiphenylamin     werden     als        Tetrazoverbindung    mit 43,1 Tei  len einer     alkalischen    Lösung von     1-Benzyl-          amino    - 8 -     oxynaphthalin    - 3 . 6 -     disulf        onsäure            vereinigt.    Nach beendeter     Kupplung    fügt  man eine     alkalische    Lösung von 11,0 Teilen  1 .

       3-Dioxybenzo#l        hinzu    und erhält einen     Dis-          azofarbs@toff,    der Leder in tiefen     grünstichig     schwarzen Tönen färbt.



  <B> Additional patent </B> to main patent no. 208539. Process for the production of a disazo dye. The main patent is a process for the production of a disazo color, which is characterized in that one tetrazotierbes 4,4'-diaminodiphenyl amine in alkaline solution with 1 mole of 1-ethylamino-8-oxynaphthalene-3.

       6-, disu, ifonic acid and 3-oxydiphenylamine combined.



  As has now been found further, a dye with similar properties is obtained if tebrazo-tertiary 4,4'-diaminodiphenylamine is combined in an alkaline solution with 1 mol of 1-benzylamino-8-oxynaphthaJin-3,6-disulfonic acid and 1,3-dioxybenzene.



       Example: 19.9 parts of 4,4'-diaminodiphenylamine are used as a tetrazo compound with 43.1 parts of an alkaline solution of 1-benzylamino-8-oxynaphthalene-3. 6 - disulfonic acid combined. After the coupling has ended, an alkaline solution of 11.0 parts of 1 is added.

       3-Dioxybenzo # l is added to give a disazo dye that colors leather in deep greenish black tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Disazo- farbstoffes, dadurch gekennzeichnet, dass man tetrazotiertes 4.4'-Diaminodiphenyl- amin in alkalischer Lösung mit je 1 Mal 1-Butylamino-8-o@xynaphthalin-3 . 6-disulf on- säure und 1.3-Dioxybenzol vereinigt. Der Farbstoff färbt Leder in tiefen grünstichig schwarzen Tönen. PATENT CLAIM: Process for the production of a disazo dye, characterized in that tetrazotized 4,4'-diaminodiphenylamine in alkaline solution with 1-butylamino-8-o @ xynaphthalene-3. 6-disulfonic acid and 1,3-dioxybenzene combined. The dye dyes leather in deep greenish black tones.
CH211011D 1937-10-07 1938-08-13 Process for the preparation of a disazo dye. CH211011A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE211011X 1937-10-07
CH208539T 1938-08-13

Publications (1)

Publication Number Publication Date
CH211011A true CH211011A (en) 1940-08-15

Family

ID=25724540

Family Applications (1)

Application Number Title Priority Date Filing Date
CH211011D CH211011A (en) 1937-10-07 1938-08-13 Process for the preparation of a disazo dye.

Country Status (1)

Country Link
CH (1) CH211011A (en)

Similar Documents

Publication Publication Date Title
CH211011A (en) Process for the preparation of a disazo dye.
CH211008A (en) Process for the preparation of a disazo dye.
AT142557B (en) Process for making blue azo dyes.
CH211010A (en) Process for the preparation of a disazo dye.
DE644724C (en) Process for the production of azo dyes
CH208539A (en) Process for the preparation of a disazo dye.
CH153388A (en) Process for the preparation of an azo dye.
CH211009A (en) Process for the production of a disazo color.
CH179333A (en) Process for the production of a new azo dye.
CH191424A (en) Process for the preparation of a monoazo dye.
CH153390A (en) Process for the preparation of an azo dye.
CH145996A (en) Process for the production of a new azo dye.
CH272491A (en) Process for the preparation of an azo dye.
CH211017A (en) Process for the preparation of a disazo dye.
CH203606A (en) Process for the production of a new azo dye.
CH186169A (en) Process for the production of a new azo dye.
CH176922A (en) Process for the production of a new azo dye.
CH190621A (en) Process for the preparation of an azo dye.
CH110287A (en) Process for the production of a new dye.
CH194664A (en) Process for the preparation of an azo dye.
CH148371A (en) Process for the production of a new azo dye.
CH202431A (en) Process for the preparation of a water-soluble monoazo dye.
CH214812A (en) Process for the preparation of a trisazo dye.
CH195326A (en) Process for the preparation of a new tetrakisazo dye.
CH183685A (en) Process for the production of a new azo dye.