CH197173A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

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Publication number
CH197173A
CH197173A CH197173DA CH197173A CH 197173 A CH197173 A CH 197173A CH 197173D A CH197173D A CH 197173DA CH 197173 A CH197173 A CH 197173A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
dye
aminobenzene
diazotized
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 CH197173A publication Critical patent/CH197173A/en

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Description

  

  Verfahren zur Herstellung eines     Nonoazofarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Monoazo-          farbstoffes,    dadurch     gekennzeichnet,    dass man       diazotiertes        1-(m-Sulfoäthyl-benzoylamino)-          4-aminobenzol    in Gegenwart von überschüs  siger Soda     mit        2-Phenylamino-8-naphthol-6-          sulfosäure        kuppelt.     



  Der so erhaltene Farbstoff bildet nach  dem Trocknen ein dunkles, wasserlösliches       Pulver    und färbt Wolle und Seide     in    sehr  tiefen     Brauntönen    von recht guten Echtheits  eigenschaften.  



  <I>Beispiel:</I>  32 Teile     1-(w-Sulfoäthyl-benzoylamino)-          4-aminobenzol    werden in der üblichen Weise       diazotiert    und die     Diazolösung    in Gegenwart  von überschüssiger Soda mit 32 Teilen     2-Phe-          nylamino-8-naphthol-    6     -sulfosäure    gekuppelt.    Nach beendeter Kupplung wird der gebildete  Farbstoff abgeschieden und     getrocknet.  



  Process for the preparation of a nonoazo dye. The present patent relates to a process for the preparation of a monoazo dye, characterized in that diazotized 1- (m-sulfoethyl-benzoylamino) -4-aminobenzene in the presence of excess soda with 2-phenylamino-8-naphthol-6- sulfonic acid couples.



  The dye thus obtained forms a dark, water-soluble powder after drying and dyes wool and silk in very deep brown tones with very good fastness properties.



  <I> Example: </I> 32 parts of 1- (w-sulfoethyl-benzoylamino) -4-aminobenzene are diazotized in the usual way and the diazo solution in the presence of excess soda with 32 parts of 2-phenylamino-8-naphthol - 6 -sulfonic acid coupled. After the coupling has ended, the dye formed is deposited and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Monoazo- farbstoffes, dadurch gekennzeichnet, dass man diazotiertes 1-(co-Sulfoäthyl-benzoylamino)- 4-aminobenzol in Gegenwart von überschüs siger Soda mit 2-Phenylamino-8-naphthol-6- sulfosäure kuppelt. Der so erhaltene Farbstoff bildet nach dem Trocknen ein dunkles, wasserlösliches Pulver und färbt Wolle und Seide in sehr tiefen Brauntönen von recht guten Echtheits eigenschaften. Claim: Process for the production of a monoazo dye, characterized in that diazotized 1- (co-sulfoethyl-benzoylamino) -4-aminobenzene is coupled in the presence of excess soda with 2-phenylamino-8-naphthol-6-sulfonic acid. The dye thus obtained forms a dark, water-soluble powder after drying and dyes wool and silk in very deep brown tones with very good fastness properties.
CH197173D 1935-08-07 1936-07-30 Process for the preparation of a monoazo dye. CH197173A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197173X 1935-08-07
CH193619T 1936-07-30

Publications (1)

Publication Number Publication Date
CH197173A true CH197173A (en) 1938-04-15

Family

ID=25722543

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197173D CH197173A (en) 1935-08-07 1936-07-30 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH197173A (en)

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