CH184189A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

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Publication number
CH184189A
CH184189A CH184189DA CH184189A CH 184189 A CH184189 A CH 184189A CH 184189D A CH184189D A CH 184189DA CH 184189 A CH184189 A CH 184189A
Authority
CH
Switzerland
Prior art keywords
dye
production
vat
vat dye
violet
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 CH184189A publication Critical patent/CH184189A/en

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Description

  

  Verfahren zur Herstellung eines     lfüpenfarbstoffes.       Das Hauptpatent betrifft ein Verfahren,  nach dem man einen neuen wertvollen     Kü-          penfarbstoff    erhält, wenn. man 1 .     4-Di-          amino-2-anthrachinonyl    - 2' .     3'-anthr        achinon-          oxazol    mit     Benzoylchlorid    umsetzt.  



  Es wurde nun gefunden, dass man ebenfalls  einen neuen wertvollen     Küpenfarbstoff    er  hält, wenn man 1     Mol        1.4-Diamino-2-anthra-          chinonyl-2'.        3'-anthrachinonogazol    mit 1     Mol          Anthrachinon-2-carbonsäurechlorid    umsetzt.

      <I>Beispiel:</I>    Eine Mischung von 24 Teilen 1     .4-Di-          amino-2-anthrachinonyl-2'.        3'-anthrachinon-          oxazol,    für das eine Herstellungsweise in dem  Hauptpatent beschrieben ist, 500 Teilen     Ni-          trobenzol,    3 Teilen wasserfreiem     Pyridin    und  25 Teilen     Anthrachinon-2-carbonsäurechlorid     wird langsam auf<B>150'</B> C erhitzt. Man be  hält diese Temperatur so lange bei, bis kein  unveränderter Ausgangsstoff mehr nachweis  bar ist.

   Dann arbeitet man in der üblichen    Weise auf und erhält so den Farbstoff in  Form     blauvioletter    Nadeln, die sich in kon  zentrierter Schwefelsäure mit braungelber  Farbe lösen und Baumwolle aus violetter       Küpe    in graublauen Tönen von ausgezeich  neter Lichtechtheit färben.



  Process for the preparation of a fountain dye. The main patent relates to a process by which a new valuable vat dye is obtained if. man 1. 4-di-amino-2-anthraquinonyl - 2 '. 3'-anthr aquinone oxazole is reacted with benzoyl chloride.



  It has now been found that a new valuable vat dye is also obtained if 1 mole of 1,4-diamino-2-anthraquinonyl-2 'is used. 3'-anthraquinonogazole is reacted with 1 mol of anthraquinone-2-carboxylic acid chloride.

      <I> Example: </I> A mixture of 24 parts of 1,4-di-amino-2-anthraquinonyl-2 '. 3'-anthraquinone oxazole, for which a production method is described in the main patent, 500 parts of nitrobenzene, 3 parts of anhydrous pyridine and 25 parts of anthraquinone-2-carboxylic acid chloride is slowly heated to 150.degree. This temperature is kept until no more unchanged starting material is detectable.

   Then it is worked up in the usual way and the dye is obtained in the form of blue-violet needles, which dissolve in concentrated sulfuric acid with a brownish yellow color and dye cotton from a violet vat in gray-blue shades of excellent lightfastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Ilerstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man 1 Mol 1. 4-Diamino-2-anthrachinonyl- 2'. 3'-anthrachinonogazol mit 1 Mol Anthra- chinon-2-carbonsäurechlorid umsetzt. Der Farbstoff bildet blauviolette Nadeln. PATENT CLAIM: Process for the production of a vat dye, characterized in that 1 mole of 1,4-diamino-2-anthraquinonyl-2 '. 3'-anthraquinonogazole is reacted with 1 mol of anthraquinone-2-carboxylic acid chloride. The dye forms blue-violet needles. die sich in konzentrierter Schwefelsäure mit braungelber Farbe lösen und Baumwolle aus violetter Küpe in gräublauen Tönen von aus gezeichneter Lichtechtheit färben. which dissolve in concentrated sulfuric acid with a brownish-yellow color and dye cotton from a violet vat in gray-blue tones of excellent lightfastness.
CH184189D 1934-02-01 1935-01-29 Process for the production of a vat dye. CH184189A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE184189X 1934-02-01
CH180963T 1935-01-29

Publications (1)

Publication Number Publication Date
CH184189A true CH184189A (en) 1936-05-15

Family

ID=25720494

Family Applications (1)

Application Number Title Priority Date Filing Date
CH184189D CH184189A (en) 1934-02-01 1935-01-29 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH184189A (en)

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