CH192476A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

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Publication number
CH192476A
CH192476A CH192476DA CH192476A CH 192476 A CH192476 A CH 192476A CH 192476D A CH192476D A CH 192476DA CH 192476 A CH192476 A CH 192476A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
monoazo dye
diazotized
naphthol
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 CH192476A publication Critical patent/CH192476A/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        p-Aminobenzoyl-äthyl-a-naphthyl-          amin    in     sodaalkalischem    Medium mit     1-(2'-          Chlor-phenoxy-acetylamino)    - 8 -     naphthol-4.        6-          disulfosäure    kuppelt.  



  Der neue Farbstoff stellt nach dem Trock  nen ein rotes wasserlösliches Pulver dar und  färbt Wolle und Seide in sehr leuchtenden  Rottönen von hervorragender Waschechtheit  und sehr guter Schweiss- und Lichtechtheit.    <I>Beispiel:</I>    29 Teile     p-Aminoberizoyl-äthyl-a-naph-          thylamin    werden in üblicher Weise     diazotiert.     Die erhaltene     Diazolösung    lässt man in eine  mit überschüssiger Soda versetzte Lösung  von 49 Teilen 1- (2'- Chlor -     phenoxy    - acetyl-         amino)-8-naphthol-4.6-disulfosäure    laufen.  Nach beendeter Kupplung wird der     Farbstoff     isoliert 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 p-aminobenzoyl-ethyl-a-naphthyl-amine in a soda-alkaline medium with 1- (2'-chloro-phenoxy-acetylamino) - 8 - naphthol-4. 6- disulfonic acid couples.



  After drying, the new dye is a red, water-soluble powder and dyes wool and silk in very bright red shades of excellent washfastness and very good fastness to sweat and light. <I> Example: </I> 29 parts of p-aminoberizoyl-ethyl-a-naphthylamine are diazotized in the usual way. The resulting diazo solution is run into a solution of 49 parts of 1- (2'-chloro-phenoxy-acetyl-amino) -8-naphthol-4,6-disulfonic acid, to which excess soda is added. After the coupling has ended, the dye is isolated and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes p-Arninobenzoyl - äthyl - a- naphthylämin in sodaalkalischetn Medium mit 1-(2'-Chlor-phenoxy-acetylamino)-8-naph- thol-4.6-disulfosäure kuppelt. Der neue Farbstoff stellt nach dem Trock nen ein rotes wasserlösliches Pulver dar und färbt Wolle und Seide in sehr leuchtenden Rottönen von hervorragender Waschechtheit und sehr guter Schweiss- und Lichtechtheit. PATENT CLAIM: A process for the preparation of a mono azo dye, characterized in that diazotized p-aminobenzoyl-ethyl-a-naphthyl-amine in a soda-alkaline medium with 1- (2'-chloro-phenoxy-acetylamino) -8-naphthol-4,6-disulfonic acid clutch. After drying, the new dye is a red, water-soluble powder and dyes wool and silk in very bright red shades of excellent washfastness and very good fastness to sweat and light.
CH192476D 1935-05-09 1936-04-27 Process for the preparation of a monoazo dye. CH192476A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE192476X 1935-05-09
CH190156T 1936-04-27

Publications (1)

Publication Number Publication Date
CH192476A true CH192476A (en) 1937-08-15

Family

ID=25721953

Family Applications (1)

Application Number Title Priority Date Filing Date
CH192476D CH192476A (en) 1935-05-09 1936-04-27 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH192476A (en)

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