CH158127A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

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Publication number
CH158127A
CH158127A CH158127DA CH158127A CH 158127 A CH158127 A CH 158127A CH 158127D A CH158127D A CH 158127DA CH 158127 A CH158127 A CH 158127A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
good
dye
methyl
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 CH158127A publication Critical patent/CH158127A/en

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Description

  

  Verfahren zur Darstellung eines     Azofarbstoffes.       Es wurde gefunden,     dass,    man zu einem  wertvollen     Monoazofarbstoff    gelangt, wenn  man     diazotierte    4<B>-</B>     Methyl   <B>- 1</B>     -'aminobenzoi-          2   <B>-</B>     sulfosäure    mit<B>1 -</B>     Naphthol   <B>-</B> Z,6-<B>-</B>     di-          sulfosäure        -,di   <B>- (X -</B>     acetylaminoanilid)    kup  pelt.  



  <I>Beispiel:</I>  <B>18,7</B>     Gewichtsteile    4<B>-</B>     Methyl   <B>- 1 -</B>     amino-          benzol   <B>-</B> 2<B>-</B>     sulfosäure    werden in der üblichen  Weise     diazotiert.    Die     Diazoverbindung        lässt     man einlaufen in eine     sodaalkalische    Lösung  von<B>56,8</B>     Gewielitsteilen   <B>1 -</B>     Naplitliol   <B>-</B>     3,6-          disuliosä,

  ure   <B>-</B>     di   <B>-</B>     (3'   <B>-</B>     acetylaminoauilid).     Ist die Kupplung beendet, arbeitet man den  Farbstoff nach bekannten Methoden auf.  



  Er färbt auf Wolle ein klares     gelbstichi-          ges    Rot von sehr guter     Walk-    und Licht-         echtheit,    sowie sehr gutem     Egalisierungsver-          mögen.  



  Process for the preparation of an azo dye. It has been found that a valuable monoazo dye is obtained if diazotized 4-methyl-1-aminobenzoi--2-sulfonic acid is used <B> 1 - </B> Naphthol <B> - </B> Z, 6- <B> - </B> disulfonic acid -, di <B> - (X - </B> acetylaminoanilide) cup pelt.



  <I> Example: </I> <B> 18.7 </B> parts by weight 4 <B> - </B> methyl <B> - 1 - </B> aminobenzene <B> - </ B > 2 <B> - </B> sulfonic acids are diazotized in the usual way. The diazo compound is allowed to run into a soda-alkaline solution of <B> 56.8 </B> Gewielitsteile <B> 1 - </B> Naplitliol <B> - </B> 3,6- disuliosä,

  ure <B> - </B> di <B> - </B> (3 '<B> - </B> acetylaminoauilide). When the coupling has ended, the dye is worked up by known methods.



  It dyes wool a clear yellow-tinged red with very good fulling and lightfastness, as well as very good leveling properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Azo- farbstoffes, dadurch gekennzeichnet, dass man diazetierte 4<B>-</B> Methyl <B>- 1 -</B> aminobenzol- 2 <B>-</B> sulfosäure mit<B>1</B> Naphthol <B>- 3,6 -</B> di- sulfosäure <B>-</B> di <B>- (3'</B> aoetylaminoanilid) kuppelt. Claim: Process for the preparation of an azo dye, characterized in that diacetated 4 <B> - </B> methyl <B> - 1 - </B> aminobenzene- 2 <B> - </B> sulfonic acid with < B> 1 </B> Naphthol <B> - 3.6 - </B> disulfonic acid <B> - </B> di <B> - (3 '</B> aoetylaminoanilide) couples. Der neue Farbstoff färbt auf Wolle ein klares gelbstichiges Rot von guter Walk und Lichtechtheit, sowie sehr gutem Egali- sierungsvermögen. The new dye dyes wool a clear, yellowish red with good fulling and lightfastness, as well as very good leveling properties.
CH158127D 1930-05-24 1931-05-15 Process for the preparation of an azo dye. CH158127A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE158127X 1930-05-24
CH154822T 1931-05-15

Publications (1)

Publication Number Publication Date
CH158127A true CH158127A (en) 1932-10-31

Family

ID=25716515

Family Applications (1)

Application Number Title Priority Date Filing Date
CH158127D CH158127A (en) 1930-05-24 1931-05-15 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH158127A (en)

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