CH205822A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH205822A
CH205822A CH205822DA CH205822A CH 205822 A CH205822 A CH 205822A CH 205822D A CH205822D A CH 205822DA CH 205822 A CH205822 A CH 205822A
Authority
CH
Switzerland
Prior art keywords
monoazo dye
preparation
dye
diazotized
aminophenol
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 CH205822A publication Critical patent/CH205822A/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     Honoazofarbstoffes.            Vorliegendes    Patent     bezieht    sich auf ein  Verfahren zur     Hex^stellung    eines     Monoazo-          farbstoffes,dadurch        gekennzeichnet,        dass    man       diazotiertes        4-Chlor=6-nitro-2-aminophenol    in       sodaalkasischer    Lösung mit     1-Phenogyacetyl-          amino-    6     -ogynaphthalin-    3     -sulfonsäure    kup  pelt.  



  Der so erhaltene Farbstoff ist     ein    dunkles  Pulver und färbt Wolle beim     Chromieren    in  blaugrauen Tönen von sehr guten     Echtheits-          eigenschaften.     



  <I>Beispiel:</I>  18,9 Teile     4-Chlor-6-nitro-2--aminophenol     werden     diazotiert.    Die erhaltene     Diazolösung     lässt man     m        eine        überschüssiges        Natrium-          carbonat        enthaltende    Lösung von 38 Teilen  1, -     Phenogyacetylamino-    6; -     oxynaphthalin-3-          sulfonsäure    laufen. Nach beendeter Kuppe-    Jung     wird,der    gebildete Farbstoff abgeschie  den und -getrocknet.



  Process for the preparation of a honoazo dye. The present patent relates to a process for hex ^ position of a monoazo dye, characterized in that diazotized 4-chloro = 6-nitro-2-aminophenol in soda-alkaline solution with 1-phenogyacetylamino-6-gynaphthalene-3-sulfonic acid coupling.



  The dye obtained in this way is a dark powder and, on chroming, dyes wool in blue-gray shades with very good fastness properties.



  <I> Example: </I> 18.9 parts of 4-chloro-6-nitro-2-aminophenol are diazotized. The diazo solution obtained is left m a solution of 38 parts of 1-phenogyacetylamino-6; - run oxynaphthalene-3-sulfonic acid. After the Kuppe-Jung is finished, the dye formed is deposited and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono- azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 4 - Chlor- 6 -nitro- 2 -amino- phenol in sodaalkalischer Lösung mit 1-Phen- oxyacetylamino - G - oxynaphthalin - 3 - sulf an säure kuppelt. PATENT CLAIM: Process for the production of a monoazo dye, characterized in that diazotized 4 - chloro - 6 - nitro - 2 - aminophenol in soda-alkaline solution is coupled with 1-phenoxyacetylamino - G - oxynaphthalene - 3 - sulf to acid. Der,so erhaltene Farbstoff ist eindunkles Pulver und färbt Wolle beim Chramieren in blaugrauen Tönen von sehr guten Echtheits eigenschaften. The dyestuff obtained in this way is a dark powder and dyes wool in blue-gray shades of very good fastness properties when it is chramed.
CH205822D 1937-01-25 1938-01-19 Process for the preparation of a monoazo dye. CH205822A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE205822X 1937-01-25
CH203140T 1938-01-19

Publications (1)

Publication Number Publication Date
CH205822A true CH205822A (en) 1939-06-30

Family

ID=25723893

Family Applications (1)

Application Number Title Priority Date Filing Date
CH205822D CH205822A (en) 1937-01-25 1938-01-19 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH205822A (en)

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