[go: up one dir, main page]

CH209528A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH209528A
CH209528A CH209528DA CH209528A CH 209528 A CH209528 A CH 209528A CH 209528D A CH209528D A CH 209528DA CH 209528 A CH209528 A CH 209528A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
dye
oxynaphthalene
oxybenzene
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 CH209528A publication Critical patent/CH209528A/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       diazotiertes        5-Nitro-2-amino-l-oxybenzol    mit       1-(P-Chlorpropionylamino)-7-oxynaphthalin-4-          sulfonsäure    kuppelt.  



  Der so erhaltene Farbstoff ist ein wasser  lösliches violettes Pulver und färbt Wolle aus  saurem Bade in roten Tönen, die beim     Nach-          chromieren    in ein     grünstichiges    Grau von  hervorragender Walk- und Lichtechtheit über  gehen.  



       Beispiel:     15,4 Teile     5-Nitro-2-amino-l-oxybenzol     werden     diazotiert.    Die erhaltene     Diazolösung     lässt man in eine mit     Pyridin    und     Natrium-          bicarbonat    versetzte Lösung von 33 Teilen       1-(ss-Chlorpropionylamin    o)     -7-oxyn        aphthali        n-4-          sulfonsäure    laufen und rührt, bis die Kuppe-    Jung beendet ist. Der gebildete Farbstoff wird  dann abgeschieden und getrocknet.



  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 diazotized 5-nitro-2-amino-1-oxybenzene is coupled with 1- (P-chloropropionylamino) -7-oxynaphthalene-4-sulfonic acid.



  The dyestuff obtained in this way is a water-soluble violet powder and dyes wool from an acid bath in red shades which, on post-chrome plating, change to a greenish gray with excellent mill and lightfastness.



       Example: 15.4 parts of 5-nitro-2-amino-1-oxybenzene are diazotized. The diazo solution obtained is poured into a solution of 33 parts of 1- (ss-chloropropionylamine o) -7-oxynaphthalene n-4-sulfonic acid to which pyridine and sodium bicarbonate have been added, and the mixture is stirred until the tip is finished. The dye formed is then deposited and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man diazotiertes 5-Nitro-2-amino-l-oxybenzol mit 1-(P-Chlorpropionylamino)-7-oxynaphthalin-4- sulfonsäure kuppelt. Der so erhaltene Farbstoff ist ein wasser lösliches violettes Pulver und färbt Wolle aus saurem Bade in roten Tönen, die beim Nachchromieren in ein grünstichiges Grau von hervorragender Walk- und Lichtechtheit übergehen. PATENT CLAIM: A process for the production of an azo dye, characterized in that diazotized 5-nitro-2-amino-1-oxybenzene is coupled with 1- (P-chloropropionylamino) -7-oxynaphthalene-4-sulfonic acid. The dye obtained in this way is a water-soluble violet powder and dyes wool from an acid bath in red shades which, when chromium-plated, turn into a greenish gray of excellent mill and lightfastness.
CH209528D 1937-06-12 1938-06-03 Process for the preparation of an azo dye. CH209528A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE209528X 1937-06-12
CH204851T 1938-06-03

Publications (1)

Publication Number Publication Date
CH209528A true CH209528A (en) 1940-04-15

Family

ID=25724093

Family Applications (1)

Application Number Title Priority Date Filing Date
CH209528D CH209528A (en) 1937-06-12 1938-06-03 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH209528A (en)

Similar Documents

Publication Publication Date Title
CH209528A (en) Process for the preparation of an azo dye.
CH209526A (en) Process for the preparation of an azo dye.
CH209527A (en) Process for the preparation of an azo dye.
CH205822A (en) Process for the preparation of a monoazo dye.
CH222699A (en) Process for the preparation of a monoazo dye.
CH261974A (en) Process for the preparation of an azo dye.
CH203616A (en) Process for the preparation of an azo dye.
CH212119A (en) Process for the preparation of an azo dye.
CH179677A (en) Process for the preparation of a monoazo dye.
CH246182A (en) Process for the preparation of a chromable azo dye.
CH179672A (en) Process for the preparation of a monoazo dye.
CH179673A (en) Process for the preparation of a monoazo dye.
CH129482A (en) Process for the production of a new azo dye.
CH187338A (en) Process for the preparation of an o-oxyazo dye.
CH185841A (en) Process for the preparation of an azo dye.
CH205819A (en) Process for the preparation of a monoazo dye.
CH185845A (en) Process for the preparation of an azo dye.
CH125117A (en) Process for the preparation of a pyrazolone azo dye.
CH209529A (en) Process for the preparation of an azo dye.
CH222695A (en) Process for the preparation of a monoazo dye.
CH177461A (en) Process for the preparation of a new monoazo dye.
CH179671A (en) Process for the preparation of a monoazo dye.
CH216114A (en) Process for the preparation of an azo dye.
CH180961A (en) Process for the preparation of an azo dye.
CH185844A (en) Process for the preparation of an azo dye.