CH200252A - Process for the production of a water-insoluble azo dye for dyeing and printing cellulose esters and ethers. - Google Patents

Process for the production of a water-insoluble azo dye for dyeing and printing cellulose esters and ethers.

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Publication number
CH200252A
CH200252A CH200252DA CH200252A CH 200252 A CH200252 A CH 200252A CH 200252D A CH200252D A CH 200252DA CH 200252 A CH200252 A CH 200252A
Authority
CH
Switzerland
Prior art keywords
dyeing
ethers
production
water
azo dye
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 CH200252A publication Critical patent/CH200252A/en

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Description

  

  Verfahren zur Herstellung eines wasserunlöslichen     Azofarbstoffes    zum Färben  und Drucken von     Zelluloseestern    und     -äthern.       Vorliegendes     Patent    bezieht     sich    auf ein  Verfahren zur     Herstellung    eines wasserunlös  lichen     Azofarbstoffes    zum Färben und     Druk-          ken    von     Zelluloseestern    und     -äthern,    dadurch  gekennzeichnet,

   dass man     diazotiertes        4-          Aminoacetophenon    in essigsaurem Medium  mit     N-Ogäthyl-eyanäthyl-m-toluidin    kuppelt.  



  Der so erhaltene Farbstoff färbt Acetat  seide nach Zusatz eines geeigneten     Dsper-          giermittels    in orangen Farbtönen von sehr  guter Lichtechtheit und guten     Nassechtheiten.            Beispiel:       135 Teile     4-Aminoacetophenon    werden in  der üblichen     Weise        diazotiert    und in essig  saurem Medium mit 205 Teilen     N-Ogäthyl-          cyanäthyl-m-toluidin    gekuppelt. Der ,gebil-         dete    Farbstoff     wird    abgesaugt,     gewaschen     und getrocknet.



  Process for the production of a water-insoluble azo dye for dyeing and printing cellulose esters and ethers. The present patent relates to a process for the production of a water-insoluble azo dye for dyeing and printing cellulose esters and ethers, characterized in that

   that one couples diazotized 4-aminoacetophenone in acetic acid medium with N-Ogäthyl-eyanäthyl-m-toluidine.



  The dye obtained in this way dyes acetate silk, after the addition of a suitable dispersant, in orange shades of very good lightfastness and good wetfastness. Example: 135 parts of 4-aminoacetophenone are diazotized in the usual way and coupled with 205 parts of N-Ogäthyl-cyanäthyl-m-toluidine in an acetic acid medium. The dyestuff formed is filtered off with suction, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines wasser unlöslichen Azofarbstoffes zum Färben und Drucken von Mluloseestern und -äthern,da- durch gekennzeichnet, dass man diazotiertes 4-Aminoacetophenon in essigsaurem Medium mit N-Ogäthyl-cyanäthyl-m-toluidin kuppelt. PATENT CLAIM: Process for the production of a water-insoluble azo dye for dyeing and printing millulose esters and ethers, characterized in that diazotized 4-aminoacetophenone is coupled in an acetic acid medium with N-Ogäthyl-cyanäthyl-m-toluidine. Der so erhaltene Farbstoff färbt Acetat seide nach Zusatz eines geeigneten Disper- giermittels in orangen Farbtönen von sehr guter Lichtechtheit und guten Nassechtheiten. The dye obtained in this way dyes acetate silk after the addition of a suitable dispersant in orange shades of very good lightfastness and good wetfastness.
CH200252D 1936-05-15 1937-05-03 Process for the production of a water-insoluble azo dye for dyeing and printing cellulose esters and ethers. CH200252A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200252X 1936-05-15
CH197283T 1937-05-03

Publications (1)

Publication Number Publication Date
CH200252A true CH200252A (en) 1938-09-30

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ID=25722965

Family Applications (1)

Application Number Title Priority Date Filing Date
CH200252D CH200252A (en) 1936-05-15 1937-05-03 Process for the production of a water-insoluble azo dye for dyeing and printing cellulose esters and ethers.

Country Status (1)

Country Link
CH (1) CH200252A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037968A (en) * 1987-03-13 1991-08-06 Willi Moller Adducts of an anion of an oxa acid and a keto compound, process for the preparation of said adducts, and process for the determination of the concentration of the anions of oxa acids using said keto compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037968A (en) * 1987-03-13 1991-08-06 Willi Moller Adducts of an anion of an oxa acid and a keto compound, process for the preparation of said adducts, and process for the determination of the concentration of the anions of oxa acids using said keto compounds

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Legal Events

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