CH217244A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH217244A
CH217244A CH217244DA CH217244A CH 217244 A CH217244 A CH 217244A CH 217244D A CH217244D A CH 217244DA CH 217244 A CH217244 A CH 217244A
Authority
CH
Switzerland
Prior art keywords
azo dye
new azo
amino
production
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 CH217244A publication Critical patent/CH217244A/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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/18—Trisazo or higher polyazo dyes
    • C09B33/22—Trisazo dyes of the type A->B->K<-C

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoifes.       Es wurde gefunden,     @dass    man     einen    neuen       Azofa:rbstoff    erhält, wenn man auf 1     Mol          1,3-Dioxybenzol    1     Mol,dia.zotierte        1-Amino-          8-oxyna.pht.ha..lin-3,6-dis@ulfonsäure    und 1     1M1          diazotierte        4-Amino-1,1'-azobenzol-4'-sulfon-          säure    einwirken     lässt.     



  Der neue     Azofarbstoff        stellt    ein     dunkles          Pulver,dar,        da.s    sich     in    Wasser mit brauner,  in     Schwefelsäurei    mit blauer Farbe löst. Der       Farbstoff    liefert beim Färben von nach den  verschiedenen Verfahren gegerbten Leder  sorten, volle braune Töne.  



  <I>Beispiel:</I>  31,9 Teile     1-Amino-8-oxynaphthalin-3,6-          i        disülfonsäure    werden in     üblieher    Weise       diazotiert    und in     alkalischem    Medium mit  11 Teilen     1,3-Dioxybenzol    vereinigt. Zu der  alkalisch behaltenen Lösung des gebildeten       1@Tonoazofa.rbstoffes        wird    die in üblicher  Weise     hergestellte        Diazoverbindung    aus 27,7         Teilen        4-Amino,-1,1'-azobenzo#l-4'-sulfonsäure     begeben.

   Nach beendeter Kupplung wird der       gebildete        Trisazofarbstoff        aasgesalzen,    fil  triert und getrocknet.



  Process for the production of a new azo dye. It was found that a new azo dye is obtained if 1 mole of dia.zotierte 1-amino-8-oxyna.pht.ha..lin-3,6-dis is added to 1 mole of 1,3-dioxybenzene @ ulfonic acid and 1 1M1 diazotized 4-amino-1,1'-azobenzene-4'-sulfonic acid can act.



  The new azo dye is a dark powder that dissolves in water with a brown color, in sulfuric acid with a blue color. When dyeing leather types tanned by various processes, the dye provides full brown tones.



  <I> Example: </I> 31.9 parts of 1-amino-8-oxynaphthalene-3,6-i-disulfonic acid are diazotized in the usual way and combined with 11 parts of 1,3-dioxybenzene in an alkaline medium. The diazo compound prepared in a customary manner from 27.7 parts of 4-amino, -1,1'-azobenzo # l-4'-sulfonic acid is added to the alkaline solution of the 1 @ tonoazofa dye formed.

   After the coupling has ended, the trisazo dye formed is washed with salt, filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes" dadurch gekennzeichnet, dass man auf 1 Mol 1,3-Dioxybenzol 1 Mol diazotierte 1-Amino-8-oxynaphthalin-3,6-idi- sulfonsäu re und 1 Mol @diazotierte 4-Amino- 1,1'-azobenzol-4'-,sulfonsäure einwirken lässt. PATENT CLAIM: Process for the preparation of a new azo dye "characterized in that 1 mol of diazotized 1-amino-8-oxynaphthalene-3,6-idisulfonic acid and 1 mol of @diazotized 4-amino- 1,1'-azobenzene-4 '-, sulfonic acid can act. Der neue Azofarbstoff stellt ein dunkles Pulver dar, das sieh in Wasser mit brauner, in Schwefelsäure mit blauer Farbe löst. Der Farbstoff liefert beim Färben von nach den verschiedenen Verfahren gegerbten Leder sorten volle braune Töne. The new azo dye is a dark powder that dissolves in water with a brown color, in sulfuric acid with a blue color. When dyeing leather types tanned by various processes, the dye provides full brown tones.
CH217244D 1940-10-09 1940-10-09 Process for the production of a new azo dye. CH217244A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH217244T 1940-10-09
CH220428T 1940-10-09

Publications (1)

Publication Number Publication Date
CH217244A true CH217244A (en) 1941-10-15

Family

ID=25726003

Family Applications (3)

Application Number Title Priority Date Filing Date
CH220427D CH220427A (en) 1940-10-09 1940-10-09 Process for the production of a new azo dye.
CH220428D CH220428A (en) 1940-10-09 1940-10-09 Process for the production of a new azo dye.
CH217244D CH217244A (en) 1940-10-09 1940-10-09 Process for the production of a new azo dye.

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CH220427D CH220427A (en) 1940-10-09 1940-10-09 Process for the production of a new azo dye.
CH220428D CH220428A (en) 1940-10-09 1940-10-09 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (3) CH220427A (en)

Also Published As

Publication number Publication date
CH220427A (en) 1942-03-31
CH220428A (en) 1942-03-31

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