CH224346A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH224346A
CH224346A CH224346DA CH224346A CH 224346 A CH224346 A CH 224346A CH 224346D A CH224346D A CH 224346DA CH 224346 A CH224346 A CH 224346A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
color
olive green
green
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 CH224346A publication Critical patent/CH224346A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     Azofarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Azofarb-          stoffes,    dadurch gekennzeichnet, dass man die       Diazoverbindung    von     1-Amino-2-osy-5-nitro-          benzol    in     alkalischemMedium    mit     1-Benzyl-          amino    - 7 -     ogynaphthalin    - 4 -     sulf        onsäure    ver  einigt.  



  Der Farbstoff ist getrocknet ein dunkel  violettes Pulver, das sich in konzentrierter  Schwefelsäure     mit    roter, in Wasser oder     Na-          triumcarbonatlösung    mit olivgrüner Farbe  löst, und Wolle in blaustichig grünen Tönen  färbt, die beim     Nachchromieren        in    ein Oliv  grün von ausgezeichneter Walk-     und        Potting-          echtheit    und sehr guter Lichtechtheit über  gehen. Die Färbung besitzt eine sehr     gute     Abendfarbe.  



  <I>Beispiel:</I>  Eine     aus    15,4 Teilen     1-Amino-2-ogy-5-          nitrobenzol    hergestellte     Diazosuspension    wird  mit einer Lösung von 32,9 Teilen     1-Benzyl-          amino-7-ogynaphthalin-4-sulfonsäure    (erhal  ten durch Umsetzung von     1,7-Diogynaph-          thalin-4-sulfonsäure    mit     Benzylamin    in     Ge-          ,o"enwart    von     Natriumbisulfit),    die überschüs-         siges        Natriumcarbonat    enthält,

       vereinigt.     Nach     Beendigung    der     Kuppelung    wird der       gebildete    Farbstoff abgeschieden und ge  trocknet.



  Process for the preparation of an azo dye. The present patent relates to a process for the production of an azo dye, characterized in that the diazo compound of 1-amino-2-osy-5-nitrobenzene is mixed with 1-benzylamino-7-ogynaphthalene-4 - in an alkaline medium. sulfonic acid united.



  The dye is dried, a dark violet powder that dissolves in concentrated sulfuric acid with red, in water or sodium carbonate solution with an olive green color, and dyes wool in bluish green tones, which when chromed into an olive green of excellent fulling and potting properties fastness and very good lightfastness. The coloring has a very good evening color.



  <I> Example: </I> A diazo suspension prepared from 15.4 parts of 1-amino-2-ogy-5-nitrobenzene is mixed with a solution of 32.9 parts of 1-benzylamino-7-ogynaphthalene-4-sulfonic acid (obtained by reacting 1,7-diogynaphthalene-4-sulfonic acid with benzylamine in the presence of sodium bisulfite), which contains excess sodium carbonate,

       united. After the coupling is complete, the dye formed is deposited and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von 1-Amino-2-ogy-5-nitro- benzol in alkalischem Medium mit 1-Benzyl- amino - 7 - ogynaphthalin - 4 - sulfonsäure ver einigt. Claim: Process for the production of an azo dye, characterized in that the diazo compound of 1-amino-2-ogy-5-nitrobenzene is combined in an alkaline medium with 1-benzylamino-7-ogynaphthalene-4-sulfonic acid . Der Farbstoff ist getrocknet ein dunkel violettes Pulver, das sich in konzentrierter Schwefelsäure mit roter, in Wasser oder Na triumcarbonatlösung mit olivgrüner Farbe löst und Wolle in blaustichig grünen Tönen färbt, die beim Nachchromieren in ein Oliv grün von ausgezeichneter Walk- und Potting- echtheit und sehr guter Lichtechtheit über gehen. Die Färbung besitzt eine sehr gute Abendfarbe. The dyestuff is dried, a dark purple powder that dissolves in concentrated sulfuric acid with red, in water or sodium carbonate solution with an olive green color and dyes wool in blue-tinged green tones, which when re-chrome-plated into an olive green with excellent milled and potting fastness and very good lightfastness. The coloring has a very good evening color.
CH224346D 1939-11-08 1940-11-01 Process for the preparation of an azo dye. CH224346A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE224346X 1939-11-08
CH220216T 1940-11-01

Publications (1)

Publication Number Publication Date
CH224346A true CH224346A (en) 1942-11-15

Family

ID=25726409

Family Applications (1)

Application Number Title Priority Date Filing Date
CH224346D CH224346A (en) 1939-11-08 1940-11-01 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH224346A (en)

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