CH187925A - Process for the preparation of an insoluble azo dye. - Google Patents

Process for the preparation of an insoluble azo dye.

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Publication number
CH187925A
CH187925A CH187925DA CH187925A CH 187925 A CH187925 A CH 187925A CH 187925D A CH187925D A CH 187925DA CH 187925 A CH187925 A CH 187925A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
insoluble azo
dye
aminobenzene
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 CH187925A publication Critical patent/CH187925A/en

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Description

  

  Verfahren zur     Iierstellnng    eines unlöslichen     Azofarbstoffes.       Gemäss dem im Hauptpatent beschriebenen  Verfahren erhält man einen     Acetatseide    in  blaustichig roten Tönen anfärbenden unlös.  lichen     Azofarbstoff,    wenn man     4-Nitro-l-          aminobenzol        diazotiert    und die     Diazoverbin-          dung    mit     1-Butyl-3-oxy-7-chlortetrahydrocbi-          nolin    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen     Farbstoff    von ähnlichen Eigen  schaften, wenn man     2.4-Dinitro-l-amino-          benzol        diazotiert    und die     Diazoverbindung     mit     1-n-Butyl-3-ogy-tetrahydrochinolin    kup  pelt.  



       Beispiel:     Eine aus 18,3 Teilen     2,4-Dinitro-l-amino-          benzol    hergestellte     Diazolösung    läuft ein in    eine eisgekühlte Lösung von 20,6 Teilen     1-          n-Butyl-3-oxy-tetrahydrochinolin    in der ent  sprechenden Menge verdünnter Salzsäure.  Der erhaltene Farbstoff färbt     Acetatseide    im       Seifensuspensionsbad    Bordeaux.



  Process for the preparation of an insoluble azo dye. According to the process described in the main patent, a non-solvent dyeing acetate silk in bluish red tones is obtained. Azo dye when 4-nitro-l-aminobenzene is diazotized and the diazo compound is coupled with 1-butyl-3-oxy-7-chlorotetrahydrocbinoline.



  As has now been further found, a dye with similar properties is obtained if 2.4-dinitro-1-aminobenzene is diazotized and the diazo compound is coupled with 1-n-butyl-3-ogy-tetrahydroquinoline.



       Example: A diazo solution prepared from 18.3 parts of 2,4-dinitro-1-aminobenzene runs into an ice-cold solution of 20.6 parts of 1-n-butyl-3-oxy-tetrahydroquinoline in the appropriate amount of dilute hydrochloric acid . The dye obtained dyes acetate silk in a Bordeaux soap suspension bath.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines unlösli chen Azofarbstoffes, dadurch gekennzeichnet, dass man 2.4-Dinitro-l-aminobenzol diazotiert und die Diazoverbindung mit 1-n-Butyl-3- ogy-tetrahydrochinoliri kuppelt. Der erhaltene Farbstoff färbt Acetatseide bordeauz. Claim: Process for the production of an insoluble azo dye, characterized in that 2,4-dinitro-1-aminobenzene is diazotized and the diazo compound is coupled with 1-n-butyl-3-ogy-tetrahydroquinoline. The dye obtained dyes acetate silk bordeau.
CH187925D 1934-08-11 1935-05-07 Process for the preparation of an insoluble azo dye. CH187925A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE187925X 1934-08-11
CH185944T 1935-05-07

Publications (1)

Publication Number Publication Date
CH187925A true CH187925A (en) 1936-11-30

Family

ID=25721286

Family Applications (1)

Application Number Title Priority Date Filing Date
CH187925D CH187925A (en) 1934-08-11 1935-05-07 Process for the preparation of an insoluble azo dye.

Country Status (1)

Country Link
CH (1) CH187925A (en)

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