CH173271A - Process for the preparation of a dye of the gallocyanin series. - Google Patents

Process for the preparation of a dye of the gallocyanin series.

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Publication number
CH173271A
CH173271A CH173271DA CH173271A CH 173271 A CH173271 A CH 173271A CH 173271D A CH173271D A CH 173271DA CH 173271 A CH173271 A CH 173271A
Authority
CH
Switzerland
Prior art keywords
series
preparation
gallocyanin
dye
gallamide
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 CH173271A publication Critical patent/CH173271A/en

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Description

  

  Verfahren zur Darstellung eines     Farbstoffes    der     Galloeyaninreilie.       Es wurde gefunden, dass man zu wert  vollen Farbstoffen der     Gallocyaninreihe    ge  langt, wenn man     Gallussäure    oder deren De  rivate, wie     Gallamid,        Gallanilid,        Gallussäure-          ester    oder auch     Pyrogallol    und Abkömmlinge  dieser Körper, mit     Nitrosoverbindungen    se  kundärer oder     tertiärer    aromatischer Amine  der     allgemeinen    Formel:

    
EMI0001.0013     
    kondensiert, worin R Wasserstoff,     Alky1,          Oxalkyl,        Sulfalkyl    oder     Aralkyl    bedeutet.  



  Die so erhaltenen Farbstoffe     können    ge  gebenenfalls nach den bei der     Herstellung     von Farbstoffen der     Gallocyaninreihe    übli  chen Methoden in weitere Derivate über  geführt werden, zum Beispiel durch Ab  spaltung der     Carboxylgruppe,    Reduktion zu       Leukofarbstoffen,    Kondensation mit Mono  oder Diaminen oder .deren     Sulfonsäuren,     mit Aldehyden,     Phenolen,

          Naphtholen    oder         Naphtholsulfonsäuren.    Die nach diesen Ar  beitsweisen     gewonnenen    Produkte können  nötigenfalls noch einer nachträglichen     Sul-          fonierung    unterworfen werden.  



  Die so erhaltenen Farbstoffe zeichnen sich  durch eine besonders für Druckfarbstoffe  erwünschte vorzügliche Löslichkeit, durch       Klarheit    des Farbtones und durch gute Echt  heitseigenschaften aus.  



  Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines neuen  Farbstoffes der     Gallocyaninreihe    durch Kon  densation von     Gallamid    mit     Nitrosophenyl-          butylamino-ss-ogypropan-y-sulfosäure.     



  <I>Beispiel:</I>  17 Gewichtsteile     Gallamid    werden in  250 Gewichtsteilen 95     %igem    Alkohol heiss  gelöst, und in die Lösung werden 45 Ge  wichtsteile     Nitrosophenylbutylamino-ss-oxy-          propan-y-sulfosäure    eingetragen in dem Masse,  wie die Gelbfärbung verschwindet. Der Farb  stoff der Formel:    
EMI0002.0001     
    fällt aus. In Form seiner Alkali- oder Am  moniumsalze ist er vorzüglich löslich. Er  gibt auf Baumwolle     mittelst    Chrombeize ge  druckt sehr gleichmässige, blaue Töne von  guter Licht-, Chlor- und Seifenechtheit.



  Process for the preparation of a dye of the Galloeyanine line. It has been found that valuable dyes of the gallocyanin series are obtained if gallic acid or its derivatives, such as gallamide, gallanilide, gallic acid ester or even pyrogallol and derivatives of these bodies, with nitroso compounds of secondary or tertiary aromatic amines of the general formula :

    
EMI0001.0013
    condensed, wherein R is hydrogen, alkyl, oxalkyl, sulfalkyl or aralkyl.



  The dyes obtained in this way can optionally be converted into further derivatives by the methods customary in the preparation of dyes of the gallocyanine series, for example by splitting off the carboxyl group, reduction to leuco dyes, condensation with mono or diamines or their sulfonic acids with aldehydes , Phenols,

          Naphthols or naphtholsulfonic acids. The products obtained by this method of operation can, if necessary, also be subjected to a subsequent sulphonation.



  The dyes obtained in this way are distinguished by excellent solubility, which is particularly desirable for printing dyes, by the clarity of the hue and by good fastness properties.



  The subject of the present patent is a process for the preparation of a new dye of the gallocyanin series by condensation of gallamide with nitrosophenylbutylamino-ss-ogypropane-y-sulfonic acid.



  <I> Example: </I> 17 parts by weight of gallamide are dissolved in 250 parts by weight of 95% alcohol, and 45 parts by weight of nitrosophenylbutylamino-ß-oxy-propane-γ-sulfonic acid are added to the solution in the same amount as the yellow color disappears. The color of the formula:
EMI0002.0001
    was cancelled. In the form of its alkali or ammonium salts, it is extremely soluble. It gives very even, blue tones of good light-, chlorine- and soap-fastness printed on cotton with chrome stain.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes der Gallocyaninreihe, dadurch gekennzeichnet, dass man Gallamid mit Nitrosophenylbutylamino -,ss- ogypropan-y-sul- fosäure kondensiert. Der entstandene Farb stoff enthält eine Sulfogruppe in der Seiten kette. Er besitzt als Alkali- oder Ammonium salz eine vorzügliche Löslichkeit und gibt mittelst Chrombeize auf Baumwolle gedruckt sehr gleichmässige, blaue Drucke von guter Licht-, Chlor- und Seifenechtheit. PATENT CLAIM: Process for the preparation of a new dye of the gallocyanin series, characterized in that gallamide is condensed with nitrosophenylbutylamino-, ss- ogypropan-y-sulphonic acid. The resulting dye contains a sulfo group in the side chain. As an alkali or ammonium salt, it has excellent solubility and, using a chrome stain, gives very even, blue prints of good light, chlorine and soap fastness when printed on cotton.
CH173271D 1932-04-14 1933-04-05 Process for the preparation of a dye of the gallocyanin series. CH173271A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE173271X 1932-04-14
CH169050T 1933-04-05

Publications (1)

Publication Number Publication Date
CH173271A true CH173271A (en) 1934-11-15

Family

ID=25718661

Family Applications (1)

Application Number Title Priority Date Filing Date
CH173271D CH173271A (en) 1932-04-14 1933-04-05 Process for the preparation of a dye of the gallocyanin series.

Country Status (1)

Country Link
CH (1) CH173271A (en)

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