CH152483A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH152483A
CH152483A CH152483DA CH152483A CH 152483 A CH152483 A CH 152483A CH 152483D A CH152483D A CH 152483DA CH 152483 A CH152483 A CH 152483A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
dye
chloroacetyl
toluidine
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 CH152483A publication Critical patent/CH152483A/en

Links

Landscapes

  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Verfahren    zur Darstellung eines     Azofarbstoffes.       Es wurde gefunden, dass man einen wert  vollen sauren     Wollfarbstoff    erhält, wenn man       diazotiertes        o-Toluidin    mit     omega-Chloracetyl-          2-amido-8-naphtliol-6-sulfosäure    kuppelt.  



       Beispiel:     Zu einer     sodaalkalischen        Lösung    von 32  Gewichtsteilen     omega-Chloracetyl-2-amido-8-          naphthol-6-sulfosäure    gibt man eine     Diazo-          lösung    aus 10,? Gewichtsteilen     o-Toluidin.     Der isolierte     Farbstoff    stellt ein rotes Pulver  dar, das Wolle aus saurem Bade in roten  Tönen von guter     Walkechtheit    färbt,



      Process for the preparation of an azo dye. It has been found that a valuable acidic wool dye is obtained if diazotized o-toluidine is coupled with omega-chloroacetyl-2-amido-8-naphthol-6-sulfonic acid.



       Example: To a soda-alkaline solution of 32 parts by weight of omega-chloroacetyl-2-amido-8-naphthol-6-sulfonic acid, a diazo solution of 10. Parts by weight of o-toluidine. The isolated dye is a red powder that dyes wool from an acid bath in red shades of good millfastness,

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man diazotiertes o-Toluidin mit omega-Chloracetyl- 2-amido-8-naphthol-6-sulfosäure kuppelt. Der Farbstoff stellt ein rotes Pulver dar, das Wolle aus saurem Bade in roten Tönen von guter Walkechtheit färbt. PATENT CLAIM: Process for the preparation of an azo dye, characterized in that diazotized o-toluidine is coupled with omega-chloroacetyl-2-amido-8-naphthol-6-sulfonic acid. The dye is a red powder that dyes wool from an acid bath in red shades of good millfastness.
CH152483D 1929-07-20 1930-07-07 Process for the preparation of an azo dye. CH152483A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE152483X 1929-07-20
CH149704T 1931-09-08

Publications (1)

Publication Number Publication Date
CH152483A true CH152483A (en) 1932-01-31

Family

ID=25715478

Family Applications (1)

Application Number Title Priority Date Filing Date
CH152483D CH152483A (en) 1929-07-20 1930-07-07 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH152483A (en)

Similar Documents

Publication Publication Date Title
CH152483A (en) Process for the preparation of an azo dye.
CH152482A (en) Process for the preparation of an azo dye.
CH149704A (en) Process for the preparation of an azo dye.
CH155673A (en) Process for the preparation of an azo dye.
DE610067C (en) Process for the preparation of a monoazo dye
DE614733C (en) Process for the production of azo dyes
CH196345A (en) Process for the preparation of an azo dye.
CH118161A (en) Process for the preparation of a trisazo dye.
CH128916A (en) Process for the preparation of the copper compound of a substantive azo dye.
CH175241A (en) Process for the preparation of an azo dye.
CH128913A (en) Process for the production of a new dye.
CH139375A (en) Process for the preparation of a polyazo dye.
CH119123A (en) Process for the production of a new dye.
CH154822A (en) Process for the preparation of an azo dye.
CH163545A (en) Process for the preparation of an azo dye.
CH197198A (en) Process for the production of an acidic wool dye.
CH121565A (en) Process for the preparation of a monoazo dye.
CH155008A (en) Process for the preparation of an acidic wool azo dye.
CH148984A (en) Process for the preparation of a yellow wool dye.
CH119899A (en) Process for the production of a new dye.
CH205797A (en) Process for the preparation of a monoazo dye.
CH145996A (en) Process for the production of a new azo dye.
CH182280A (en) Process for the preparation of a red monoazo dye.
CH197190A (en) Process for the production of an acidic wool dye.
CH194087A (en) Process for the preparation of an o-oxyazo dye.