CH159063A - Process for the production of a real vat dye. - Google Patents

Process for the production of a real vat dye.

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Publication number
CH159063A
CH159063A CH159063DA CH159063A CH 159063 A CH159063 A CH 159063A CH 159063D A CH159063D A CH 159063DA CH 159063 A CH159063 A CH 159063A
Authority
CH
Switzerland
Prior art keywords
production
molecule
real
dye
acid chloride
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 CH159063A publication Critical patent/CH159063A/en

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Description

  

  Verfahren zur Herstellung eines echten     Ilüpenfarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines echten     Kü-          penfarbstoffes,    dadurch gekennzeichnet, dass  man ein Molekül     Thiazolanthron    - 2 -     carbon-          säurechlorid    in Gegenwart eines wasserfreien       Metallhalogenids    mit einem Molekül     Diphenyl     kondensiert und das so erhaltene     Monoketon     mit einem Molekül     Pyrazolanthron-2-carbon-          säurechlorid    in Reaktion bringt.  



  Der so erhaltene Farbstoff ist ein gelbes  Pulver, das Baumwolle aus violetter     güpe    in       grünstichig    gelben Tönen von hervorragenden  Echtheitseigenschaften anfärbt.  



  <I>Beispiel:</I>  Zu einer     Lösung    von 30 kg     Thiazolanthron-          2-carbonsäurechlorid    und 30 kg     Diphenyl    in  200 kg Nitrobenzol werden bei etwa 90   lang  sam und unter Rühren 30 kg Aluminium  chlorid zugegeben. Die braune Lösung wird  nach etwa 1 Stunde mit verdünnter Salzsäure  versetzt und das Nitrobenzol mit Wasserdampf    abgeblasen. Das reine 2 -     Thiazolanthronyl-          diphenylketori    wird nach dem     Digerieren    mit  Spiritus in Form eines gelblich gefärbten  Pulvers erhalten, das sich mit rotvioletter  Farbe     verküpen    lässt, aber geringe Affinität  zur pflanzlichen Faser besitzt.  



  20. kg dieses     Monoketons    werden mit 15  kg     Pyrazolanthron-2-carbonsäurechlorid    ver  mischt und bei etwa 1200 in eine Schmelze  aus 150 kg Aluminiumchlorid und 30 kg       Natriumchlorid    eingerührt. Nach etwa     1/:     Stunde wird in salzsäurehaltiges Wasser ge  drückt. Der in goldgelben Flocken abgeschie  dene Farbstoff wird     abfiltriert    und ausge  waschen.



  Process for the production of a real Ilüpen dye. The present patent relates to a process for the production of a real vat dye, characterized in that one molecule of thiazolanthrone-2-carboxylic acid chloride is condensed in the presence of an anhydrous metal halide with one molecule of diphenyl and the monoketone thus obtained with one molecule of pyrazolanthrone-2 -carboxylic acid chloride brings into reaction.



  The dye obtained in this way is a yellow powder which dyes cotton of violet quality in greenish yellow shades with excellent fastness properties.



  <I> Example: </I> To a solution of 30 kg of thiazolanthrone-2-carboxylic acid chloride and 30 kg of diphenyl in 200 kg of nitrobenzene, 30 kg of aluminum chloride are slowly added at about 90 minutes while stirring. After about 1 hour, the brown solution is mixed with dilute hydrochloric acid and the nitrobenzene is blown off with steam. The pure 2-thiazolanthronyldiphenylketori is obtained after digestion with alcohol in the form of a yellowish colored powder, which can be vat with red-violet color, but has little affinity for vegetable fibers.



  20. kg of this monoketone are mixed ver with 15 kg of pyrazolanthrone-2-carboxylic acid chloride and stirred into a melt of 150 kg of aluminum chloride and 30 kg of sodium chloride at about 1200. After about 1 /: hour it is pressed into water containing hydrochloric acid. The dye deposited in golden yellow flakes is filtered off and washed out.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines echten güpenfarbstoffes, dadurch gekennzeichnet, dass man ein Molekül Tliiazolanthron- 2 - car- bonsäurechlorid in Gegenwart eines wasser freien Metallhalogenides mit einem Molekül Diphenyl kondensiert und das so erhaltene Monoketon mit einem Molekül Pyrazolanthron- 2-Garbonsäiirechlorid in Reaktion bringt. <B> PATENT CLAIM: </B> Process for the production of a real liquid dye, characterized in that one molecule of Tliiazolanthron- 2 - carboxylic acid chloride is condensed in the presence of an anhydrous metal halide with one molecule of diphenyl and the monoketone thus obtained with one molecule of pyrazolanthrone - Reacts 2-carbonic acid chloride. Der so erhaltene Farbstoff ist ein gelbes Pulver; das Baumwolle aus violetter Küpe in grünstichig gelben Tönen von hervorragenden Echtheitseigenschaften anfärbt. The dye thus obtained is a yellow powder; the cotton from the violet vat dyes in greenish yellow tones with excellent fastness properties.
CH159063D 1930-07-05 1931-07-03 Process for the production of a real vat dye. CH159063A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE159063X 1930-07-05
CH155455T 1931-07-03
DE220730X 1941-01-04

Publications (1)

Publication Number Publication Date
CH159063A true CH159063A (en) 1932-12-15

Family

ID=27177354

Family Applications (1)

Application Number Title Priority Date Filing Date
CH159063D CH159063A (en) 1930-07-05 1931-07-03 Process for the production of a real vat dye.

Country Status (1)

Country Link
CH (1) CH159063A (en)

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