CH211009A - Process for the production of a disazo color. - Google Patents

Process for the production of a disazo color.

Info

Publication number
CH211009A
CH211009A CH211009DA CH211009A CH 211009 A CH211009 A CH 211009A CH 211009D A CH211009D A CH 211009DA CH 211009 A CH211009 A CH 211009A
Authority
CH
Switzerland
Prior art keywords
production
disazo
alkaline solution
disazo dye
oxydiphenylamine
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 CH211009A publication Critical patent/CH211009A/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

  

      Zusatzpatent    zum     Hauptpatent    Nr. 208539.    Verfahren zur Herstellung eines     Disazofarbsfoffes.       Gegenstand des     Hauptpatentes    ist ein       Verfahren    zur     Herstellung    eines     Disazo-farb-          stoffes,    welches dadurch gekennzeichnet ist,

    dass man     tetrazotierttes        4.4'-Diaminodiphenyl-          amin    in alkalischer     Lösung    mit je 1     Mol          1-Athylamino-8-oxynaphtha-Iin-3.        6-disulfon-          säure    und     3-Oxydiphenylamin        vereinigt.     



  Wie nun     weiter    gefunden wurde, erhält  man einen Farbstoff von ähnlichen Eigen  schaften, wenn man     tetrazotiertes        4.4'-Di-          aminodiphenylamin    in     alkalischer    Lösung  mit je 1     Mol        1-Butylamino-8-oxynaphthalin-          3.6-disulfonsäure    und     3-Oxydiphenylamin     vereinigt.  



       Beispiel:     19,9 Teile     4.4'-Diaminodiphenylamin     werden     tetrazotiert    und 37,5 Teilen einer  alkalischen Lösung von     1-Butylamino-8-oxy-          naphthalin-3    .     6-di.sulfonsäurevereinigt.    Nach  der Bildung des     Monoazofarbstoffes    wird  eine alkalische Lösung von 18,5 Teilen     3-          Oxydiphenylamin    hinzugefügt.

   Der fertige       Disazofarbstoff    wird durch     Aussalzen    ge  wonnen, stellt nach dem     Trocknen    ein grau-    schwarzes, Pulver dar, und färbt Leder in  schönen dunkelblauen     grünstichigen    Tönen  von guten Echtheitseigenschaften.  



  Die verwendete     1-Butylamino-8-oxynaph-          thaJin-3.6-disulfo#nsäure    wurde durch alka  lische     Kondensation    von     1-Amino-8-ogy-          naphthalin.-3.6-disulfonsäure    mit     n-ButyZ-          chlorid    gewonnen.



      Additional patent to main patent no. 208539. Process for the production of a disazo color substance. The subject of the main patent is a process for the production of a disazo dye, which is characterized by

    that one tetrazotized 4,4'-diaminodiphenylamine in alkaline solution with 1 mole of 1-ethylamino-8-oxynaphtha-Iin-3. 6-disulfonic acid and 3-oxydiphenylamine combined.



  As has now also been found, a dye of similar properties is obtained if tetrazotized 4,4'-di-aminodiphenylamine is combined in alkaline solution with 1 mole of 1-butylamino-8-oxynaphthalene-3,6-disulfonic acid and 3-oxydiphenylamine.



       Example: 19.9 parts of 4,4'-diaminodiphenylamine are tetrazotized and 37.5 parts of an alkaline solution of 1-butylamino-8-oxynaphthalene-3. 6-di.sulfonic acid combined. After the monoazo dye has formed, an alkaline solution of 18.5 parts of 3-oxydiphenylamine is added.

   The finished disazo dye is obtained by salting out, and after drying it is a gray-black powder, and it dyes leather in beautiful dark blue greenish tones with good fastness properties.



  The 1-butylamino-8-oxynaphthalene-3.6-disulfonic acid used was obtained by alkali condensation of 1-amino-8-ogynaphthalene-3.6-disulfonic acid with n-butyl chloride.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Disazo- farbstoffes, dadurch gekennzeichnet, dass man tetrazotiertes 4.4'-Diaminodiphenyl- amin in alkalischer Lösung mit je 1 Mod 1-Butylamino-8-o@xynaphthalin-3. 6-dis: PATENT CLAIM: Process for the production of a disazo dye, characterized in that tetrazotized 4,4'-diaminodiphenylamine in alkaline solution with 1 Mod 1-butylamino-8-o @ xynaphthalene-3. 6-dis: -ulfon- säure und 3-Oxydiphenylamin vereinigt. Der fertige Disazofarbstoff stellt nach dem Trock nen ein grauschwarzes Pulver dar und färbt Leder in schönen dunkelblauen, grünstichigen Tönen von guten Eehtheits,eigenschaften. sulfonic acid and 3-oxydiphenylamine combined. The finished disazo dye is a gray-black powder after drying and colors leather in beautiful dark blue, greenish tones with good integrity properties.
CH211009D 1937-10-07 1938-08-13 Process for the production of a disazo color. CH211009A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE211009X 1937-10-07
CH208539T 1938-08-13

Publications (1)

Publication Number Publication Date
CH211009A true CH211009A (en) 1940-08-15

Family

ID=25724538

Family Applications (1)

Application Number Title Priority Date Filing Date
CH211009D CH211009A (en) 1937-10-07 1938-08-13 Process for the production of a disazo color.

Country Status (1)

Country Link
CH (1) CH211009A (en)

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