CH200251A - 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.

Info

Publication number
CH200251A
CH200251A CH200251DA CH200251A CH 200251 A CH200251 A CH 200251A CH 200251D A CH200251D A CH 200251DA CH 200251 A CH200251 A CH 200251A
Authority
CH
Switzerland
Prior art keywords
dyeing
ethers
production
water
cellulose esters
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 CH200251A publication Critical patent/CH200251A/en

Links

Description

  

  Verfahren zur Herstellung eines wasserunlöslichen     Azofarbstoifes    zum Färben  und Drucken von     Zelluloseestern    und     -äthern.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung     eines    wasserun  löslichen     Azofarbstoffes    zum Färben und  Drucken von     Zelluloseestern    und     -äthern,    da  durch .gekennzeichnet, dass man     diazotiertes          3-Chlor-4-aminoacetophenon    in essigsaurem  Medium mit     N-Ogäthyl-cyanäthyl-m-toluidin     kuppelt.  



  Der so     erhaltene    Farbstoff färbt Acetat  seide nach Zusatz eines ,geeigneten     Disper-          giermittels    in orangen Farbtönen von sehr  guter     Lichtechtheit    und guten     Nassechtheiten.     <I>Beispiel:</I>  172 Teile     3,    - Chlor - 4 -     aminoacetophenon     werden in der üblichen Weise     diazotiert    und  in essigsaurem Medium mit 205 Teilen     N-Og-          äthy        1-cyanäthyl-m-toluidin    ,gekuppelt. Der    gebildete Farbstoff wird     abgesaugt,    gewa  schen 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, as characterized by diazotized 3-chloro-4-aminoacetophenone in acetic acid medium with N-Ogäthyl-cyanäthyl-m- toluidine couples.



  The dye obtained in this way dyes acetate silk after the addition of a suitable dispersing agent in orange shades of very good lightfastness and good wetfastnesses. <I> Example: </I> 172 parts of 3-chloro-4-aminoacetophenone are diazotized in the usual way and coupled with 205 parts of N-Og-ethy 1-cyanoethyl-m-toluidine in an acetic acid medium. The dye formed is filtered off with suction, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines wasser unlöslichen Azofarbstoffes zum Färben und Drucken von Zelluloseestern und -äthern,da- durch ;gekennzeichnet, dass man diazotiertes 3-Chlor-4-aminoacetophenon in. essigsaurem Medium mit N-Ogäthyl-oyanäthyl-m-toluädin kuppelt. Claim: A process for the production of a water-insoluble azo dye for dyeing and printing cellulose esters and ethers, characterized in that diazotized 3-chloro-4-aminoacetophenone is coupled with N-Ogäthyl-oyanäthyl-m-toluadin in an acetic acid medium . 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.
CH200251D 1936-05-15 1937-05-03 Process for the production of a water-insoluble azo dye for dyeing and printing cellulose esters and ethers. CH200251A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200251X 1936-05-15
CH197283T 1937-05-03

Publications (1)

Publication Number Publication Date
CH200251A true CH200251A (en) 1938-09-30

Family

ID=25722964

Family Applications (1)

Application Number Title Priority Date Filing Date
CH200251D CH200251A (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) CH200251A (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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