CH227517A - Process for the preparation of a water-soluble monoazo dye. - Google Patents

Process for the preparation of a water-soluble monoazo dye.

Info

Publication number
CH227517A
CH227517A CH227517DA CH227517A CH 227517 A CH227517 A CH 227517A CH 227517D A CH227517D A CH 227517DA CH 227517 A CH227517 A CH 227517A
Authority
CH
Switzerland
Prior art keywords
monoazo dye
preparation
water
soluble monoazo
soluble
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 CH227517A publication Critical patent/CH227517A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • C09B29/30—Amino naphtholsulfonic acid

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     wasserlöslichen        Monoazofarbstoifes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines wasserlös  lichen     Monoazofarbstoffes,    dadurch gekenn  zeichnet, dass man die     Diazoverbindunö     von     2-Amino-4,6-dimethyl-2',4'-dichlor-1,1'-          diphenyläther    mit     1-(2',5'-Dichlorbenzoyl-          amino)    - 8 -     ogynaphthalin    - 4,6 -     disulf        onsäure     kuppelt.  



  Der so erhaltene     Monoazofarbstoff    ist ein  rotes Pulver und färbt Wolle aus saurem  oder neutralem Bade in leuchtend roten Farb  tönen von sehr     guten    Echtheitseigenschaften.  <I>Beispiel:</I>  28,2 Teile     2-Amino-4,6-dimethyl-2',4'-          dichlor-1,1'-diphenyläther    werden in bekann  ter Weise     diazotiert,    und die     Diazoverbin-          dung    wird in     Gegenwart    eines Überschusses  von     Natriumcarbonat    mit 50 Teilen 1-(2',5'-         Dichlorbenzoylamino)    - 8 -     ogynaphthalin-        4,

  6-          disulfonsäure    gekuppelt. Der erhaltene Farb  stoff wird abgeschieden und getrocknet.



  Process for the preparation of a water-soluble monoazo dye. The present patent relates to a process for the preparation of a water-soluble monoazo dye, characterized in that the Diazoverbindunö of 2-amino-4,6-dimethyl-2 ', 4'-dichloro-1,1'-diphenyl ether with 1- (2 ', 5'-dichlorobenzoylamino) - 8 - ogynaphthalene - 4,6 - disulfonic acid couples.



  The monoazo dye thus obtained is a red powder and dyes wool from an acidic or neutral bath in bright red shades of very good fastness properties. <I> Example: </I> 28.2 parts of 2-amino-4,6-dimethyl-2 ', 4'-dichloro-1,1'-diphenyl ether are diazotized in a known manner, and the diazo compound is in the presence of an excess of sodium carbonate with 50 parts 1- (2 ', 5'-dichlorobenzoylamino) - 8 - ogynaphthalene- 4,

  6- disulfonic acid coupled. The dye obtained is deposited and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines wasser löslichen Monoazofarbstoffes, dadurch ge kennzeichnet, dass man die Diazoverbindung von 2-Amino-4,6-dimethyl-2',4'-dichlor-1,1'- diphenyläther mit 1-(2',5'-Dichlorbenzoyl- amino) - 8 - ogynaphthalin - 4,6 - disulfonsäure kuppelt. Der so erhaltene Monoazofarbstoff ist ein rotes Pulver und färbt Wolle aus saurem oder neutralem Bade in leuchtend roten Farb tönen von sehr guten Echtheitseigenschaften. PATENT CLAIM: Process for the preparation of a water-soluble monoazo dye, characterized in that the diazo compound of 2-amino-4,6-dimethyl-2 ', 4'-dichloro-1,1'-diphenyl ether with 1- (2', 5'-dichlorobenzoylamino) - 8 - ogynaphthalene - 4,6 - disulfonic acid couples. The monoazo dye thus obtained is a red powder and dyes wool from an acidic or neutral bath in bright red shades of very good fastness properties.
CH227517D 1942-01-24 1942-01-24 Process for the preparation of a water-soluble monoazo dye. CH227517A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH227517T 1942-01-24
CH225367T 1942-01-24

Publications (1)

Publication Number Publication Date
CH227517A true CH227517A (en) 1943-06-15

Family

ID=25726868

Family Applications (1)

Application Number Title Priority Date Filing Date
CH227517D CH227517A (en) 1942-01-24 1942-01-24 Process for the preparation of a water-soluble monoazo dye.

Country Status (1)

Country Link
CH (1) CH227517A (en)

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