CH198346A - Process for the production of a copper-containing azomethine dye. - Google Patents

Process for the production of a copper-containing azomethine dye.

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Publication number
CH198346A
CH198346A CH198346DA CH198346A CH 198346 A CH198346 A CH 198346A CH 198346D A CH198346D A CH 198346DA CH 198346 A CH198346 A CH 198346A
Authority
CH
Switzerland
Prior art keywords
copper
azomethine dye
production
containing azomethine
aminophenol
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 CH198346A publication Critical patent/CH198346A/en

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

Description

  

  Verfahren zur Herstellung eines kupferhaltigen     Azomethinfar        bstoffes.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines kupfer  haltigen     Azomethinfarbstoffes.    Das Verfahren  ist dadurch gekennzeichnet, dass man     o-Ogy-          benzaldehyd    in Gegenwart von Kupferacetat  auf     o-Aminophenol    einwirken lässt. Der er  haltene neue kupferhaltige     Azomethinfarbstoff     ist ein olivfarbenes Pulver, das in Wasser  und in den üblichen organischen Lösungs  mitteln unlöslich ist.

   Er eignet sich zur Ver  wendung im graphischen Druck und ist durch  sehr gute     Lichtechtbeit,    gute Sprit- und     Lö-          sungsmittelechtheit    ausgezeichnet.  



  <I>Beispiel:</I>  <B>6,1</B> g     o-Oxybenzaldehyd    und 5,45 g o  Aminophenol werden in 300     cms    50     o/oigem     Alkohol am     Rückflusskühler    erhitzt. Unter  Rühren gibt man die heisse Lösung von 8,08 g  Kupferacetat in 200     cms    50      /oigen    Alko  hols zu. Es scheidet sich ein graugrüner Nie  derschlag ab, der nach einstündigem Kochen       abgenutscht,    mit 50     %igem    Alkohol     gewaschen       und getrocknet wird.

   Der olivfarbene Pi  gmentfarbstoff lässt sich wegen seiner     beacb-          tenawerten    Lichtechtheit, guten Sprit- und       Lösungsmittelechtheit    im graphischen Druck  verwenden.



  Process for the production of a copper-containing azomethine dye. The present patent relates to a process for the production of a copper-containing azomethine dye. The process is characterized in that o-o-gybenzaldehyde is allowed to act on o-aminophenol in the presence of copper acetate. The he received new copper-containing azomethine dye is an olive powder that is insoluble in water and the usual organic solvents.

   It is suitable for use in graphic printing and is distinguished by its very good lightfastness, good fuel and solvent fastness.



  <I> Example: </I> <B> 6.1 </B> g of o-oxybenzaldehyde and 5.45 g of aminophenol are heated in 300 cms of 50% alcohol on a reflux condenser. The hot solution of 8.08 g of copper acetate in 200 cms of 50% alcohol is added with stirring. A gray-green precipitate separates out, which is sucked off after one hour of boiling, washed with 50% alcohol and dried.

   The olive-colored pigment dye can be used in graphic printing because of its desirable light fastness and good fuel and solvent fastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer haltigen Azomethinfarbstoffes, dadurch ge kennzeichnet, dass man o-Ogybenzaldehyd in Gegenwart von Kupferacetat auf o-Amino- phenol einwirken lässt. Der erhaltene kupferhaltige Azomethin- farbstoff ist ein olivfarbenes Pulver, das in Wasser und in den üblichen organischen Lö sungsmitteln unlöslich ist. Er eignet sich zur Verwendung im graphischen Druck und ist durch sehr gute Lichtechtheit, gute Sprit- und Lösungsmittelechtheit ausgezeichnet. PATENT CLAIM: Process for the production of a copper-containing azomethine dye, characterized in that o-o-gybenzaldehyde is allowed to act on o-aminophenol in the presence of copper acetate. The copper-containing azomethine dye obtained is an olive-colored powder which is insoluble in water and in the usual organic solvents. It is suitable for use in graphic printing and is characterized by its very good lightfastness, good fuel and solvent fastness.
CH198346D 1935-10-12 1936-09-08 Process for the production of a copper-containing azomethine dye. CH198346A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE198346X 1935-10-12
CH196355T 1936-09-08

Publications (1)

Publication Number Publication Date
CH198346A true CH198346A (en) 1938-06-15

Family

ID=25722856

Family Applications (1)

Application Number Title Priority Date Filing Date
CH198346D CH198346A (en) 1935-10-12 1936-09-08 Process for the production of a copper-containing azomethine dye.

Country Status (1)

Country Link
CH (1) CH198346A (en)

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