CH192478A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

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Publication number
CH192478A
CH192478A CH192478DA CH192478A CH 192478 A CH192478 A CH 192478A CH 192478D A CH192478D A CH 192478DA CH 192478 A CH192478 A CH 192478A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
dye
red
acetylamino
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 CH192478A publication Critical patent/CH192478A/en

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Description

  

      Terfahren    zur Herstellung eines     Monoazofarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Morroazo-          farbstoffes,    dadurch gekennzeichnet, dass man       diazotiertes        p-Aminobenzoyl-carbazol    in     soda-          alkalischem    Medium mit     1-(2'-Chlor-phenoxy-          acetylamiuo)-8-naphthol-4.6-disulfosäure    kup  pelt.  



  Der neue Farbstoff stellt nach dem Trock  nen ein rotes, wasserlösliches Pulver dar und  färbt Wolle und Seide in sehr lebhaften roten  Tönen von sehr guter Wasch-, Schweiss- und  Lichtechtheit.  



       Beispiel:     Die in üblicher Weise hergestellte     Diazo-          verbindung    von 28,6 Teilen     p-Aminobenzoyl-          carbazol    wird in Gegenwart von Soda mit  49 Teilen     1-(2'-Chlor-phenoxy-acetylamino)-          8-naphthol-4.6-disulfosäure    gekuppelt. Nach    beendeter Kupplung wird der Farbstoff iso  liert und getrocknet.



      A method for producing a monoazo dye. The present patent relates to a process for the preparation of a Morroazo dye, characterized in that diazotized p-aminobenzoyl-carbazole is mixed with 1- (2'-chloro-phenoxy-acetylamino) -8-naphthol-4,6- in a soda-alkaline medium disulfonic acid coupling.



  After drying, the new dye is a red, water-soluble powder and dyes wool and silk in very vivid red shades with very good wash, perspiration and lightfastness.



       Example: The conventionally prepared diazo compound of 28.6 parts of p-aminobenzoylcarbazole is coupled with 49 parts of 1- (2'-chloro-phenoxy-acetylamino) -8-naphthol-4,6-disulfonic acid in the presence of soda. After the coupling has ended, the dye is isolated and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Monoazo- farbstoffes, dadurch gekennzeichnet, dass man diazotiertes p-Aminobenzoyl-carbazol in soda- alkalisohem Medium mit 1-(2'-Chlor-phenoxy- acetylamino)-8-naphthol-4.6-disulfosäure kup pelt. Der neue Farbstoff stellt nach dem Trock nen ein rotes, wasserlösliches Pulver dar und färbt Wolle und Seide in sehr lebhaften roten Tönen von sehr guter Wasch-, Schweiss- und Lichtechtheit. PATENT CLAIM: Process for the production of a monoazo dye, characterized in that diazotized p-aminobenzoyl-carbazole is coupled with 1- (2'-chloro-phenoxy-acetylamino) -8-naphthol-4,6-disulfonic acid in a soda-alkali medium. After drying, the new dye is a red, water-soluble powder and dyes wool and silk in very vivid red shades with very good wash, perspiration and lightfastness.
CH192478D 1935-05-09 1936-04-27 Process for the preparation of a monoazo dye. CH192478A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE192478X 1935-05-09
CH190156T 1936-04-27

Publications (1)

Publication Number Publication Date
CH192478A true CH192478A (en) 1937-08-15

Family

ID=25721955

Family Applications (1)

Application Number Title Priority Date Filing Date
CH192478D CH192478A (en) 1935-05-09 1936-04-27 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH192478A (en)

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