CH167383A - Process for the preparation of a fat-soluble azo dye. - Google Patents

Process for the preparation of a fat-soluble azo dye.

Info

Publication number
CH167383A
CH167383A CH167383DA CH167383A CH 167383 A CH167383 A CH 167383A CH 167383D A CH167383D A CH 167383DA CH 167383 A CH167383 A CH 167383A
Authority
CH
Switzerland
Prior art keywords
fat
preparation
soluble azo
azo dye
parts
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 CH167383A publication Critical patent/CH167383A/en

Links

Landscapes

  • Inks, Pencil-Leads, Or Crayons (AREA)

Description

  

  Verfahren zur Darstellung eines fettlöslichen     Azofarbstoffes.       Gemäss dem Hauptpatent erhält man einen       iettlöslichen        Azofarbstoff,    wenn man     1-Di-          (3   <B>-</B>     methyl   <B>-</B> 4<B>-</B>     aminophenyl)   <B>-</B>     hexahydrobenzol          tetrazotiert    und die     Tetrazoverbindung    mit       4-Oxyphenyl-hexahydrobenzol    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen Farbstoff mit ähnlichen Eigen  schaften, wenn man als     Tetrazokomporlente     das     1-Di-(3-methoxy-4-aininophenyl)-hexa-          hydrobenzol    wählt.  



  <I>Beispiel:</I>  <B>29,5</B> Teile     1-Di-(3-methoxy-4-aminophenyl)-          hexahydrobenzol    von der Formel  
EMI0001.0017     
    werden in<B>500</B> Teilen Wasser und<B>60</B> Teilen  Salzsäure 20<B>0</B> B6 unter gelindem Erwärmen  gelöst und bei<B>0-5 0 0</B> mit<B>13,

  8</B> Teilen       Natriumnitrit    in wässeriger Lösung tetra-         zotiert.    Die klare     Tetrazolösung    läuft lang  sam zu einer auf<B>0 0 C</B> gekühlten Suspension  von<B>36</B> Teilen     4-Oxyphenylhexahydroberizol     in 2000 Teilen Wasser und 14 Teilen     Natrium-          hydroxyd.    Nach beendigter Kupplung wird  der Farbstoff     gepresst,    bei etwa<B>50 0</B>     C    ge  trocknet und darauf gemahlen. Er löst sich  sehr leicht mit     oranger    Farbe in den übli  chen organischen Lösungsmitteln, wie auch  in Fetten, Ölen und Wachsen.

   Die mit ihm  erzielten Färbungen sind hervorragend     licht-          und        sublimierecht.  



  Process for the preparation of a fat-soluble azo dye. According to the main patent, an ion-soluble azo dye is obtained if 1-di- (3-di- (3-B-methyl-4-aminophenyl) -amino-phenyl) is obtained / B> hexahydrobenzene tetrazotized and the tetrazo compound coupled with 4-oxyphenylhexahydrobenzene.



  As has now been found further, a dye with similar properties is obtained if 1-di- (3-methoxy-4-aininophenyl) -hexa-hydrobenzene is chosen as the tetrazo component.



  <I> Example: </I> <B> 29.5 </B> parts of 1-di- (3-methoxy-4-aminophenyl) -hexahydrobenzene of the formula
EMI0001.0017
    are dissolved in <B> 500 </B> parts of water and <B> 60 </B> parts of hydrochloric acid 20 <B> 0 </B> B6 with gentle heating and at <B> 0-5 0 0 </ B > with <B> 13,

  8 parts of sodium nitrite tetrazotized in an aqueous solution. The clear tetrazo solution slowly runs to a suspension, cooled to 0 ° C., of 36 parts of 4-oxyphenylhexahydroberizole in 2000 parts of water and 14 parts of sodium hydroxide. After coupling is complete, the dye is pressed, dried at about 50 ° C. and then ground. It dissolves very easily with an orange color in the usual organic solvents, as well as in fats, oils and waxes.

   The colorations achieved with it are excellent lightfast and sublimation fast.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines fettlös lichen Azofarbstoffes, dadurch gekennzeich net, das man 1-Di-(3-methoxy-4-aminophenyl)- hexahydrobenzol tetrazotiert und die Tetrazo- verbindung mit 4-Oxyphenylhexahydrobenzol kuppelt. Der Farbstoff löst sich mit oranger Farbe in organischen Lösungsmitteln, Fetten, Ölen und Wachsen und färbt diese licht- und sublimierecht. PATENT CLAIM: Process for the preparation of a fat-soluble azo dye, characterized in that 1-di- (3-methoxy-4-aminophenyl) -hexahydrobenzene is tetrazotized and the tetrazo compound is coupled with 4-oxyphenylhexahydrobenzene. The orange color of the dye dissolves in organic solvents, fats, oils and waxes and colors them lightfast and sublimation fast.
CH167383D 1931-11-30 1932-10-18 Process for the preparation of a fat-soluble azo dye. CH167383A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE167383X 1931-11-30
CH163544T 1932-10-18

Publications (1)

Publication Number Publication Date
CH167383A true CH167383A (en) 1934-02-15

Family

ID=25717807

Family Applications (1)

Application Number Title Priority Date Filing Date
CH167383D CH167383A (en) 1931-11-30 1932-10-18 Process for the preparation of a fat-soluble azo dye.

Country Status (1)

Country Link
CH (1) CH167383A (en)

Similar Documents

Publication Publication Date Title
CH167383A (en) Process for the preparation of a fat-soluble azo dye.
CH167382A (en) Process for the preparation of a fat-soluble azo dye.
DE742661C (en) Process for the production of azo dyes
CH163544A (en) Process for the preparation of a fat-soluble azo dye.
CH167385A (en) Process for the preparation of a fat-soluble azo dye.
AT72640B (en) Process for the preparation of mordant dyes.
CH157552A (en) Process for the preparation of a water-insoluble azo dye.
CH157556A (en) Process for the preparation of a water-insoluble azo dye.
CH153388A (en) Process for the preparation of an azo dye.
CH201837A (en) Process for the preparation of a disazo dye.
CH189041A (en) Process for the preparation of a monoazo dye.
CH114915A (en) Process for the preparation of a trisazo dye.
CH203426A (en) Process for the preparation of a polyazo dye.
CH157554A (en) Process for the preparation of a water-insoluble azo dye.
CH125116A (en) Process for the preparation of a pyrazolone azo dye.
CH185344A (en) Process for the preparation of a metal-containing azo dye.
CH157538A (en) Process for the preparation of a water-insoluble azo dye.
CH194663A (en) Process for the preparation of an azo dye.
CH157543A (en) Process for the preparation of a water-insoluble azo dye.
CH157536A (en) Process for the preparation of a water-insoluble azo dye.
CH261974A (en) Process for the preparation of an azo dye.
CH170928A (en) Process for the preparation of an azo dye.
CH199963A (en) Process for the preparation of an azo dye.
CH223541A (en) Process for the preparation of an acidic disazo dye.
CH236997A (en) Process for the production of a new azo dye.