CH152776A - Process for the production of a real vat dye. - Google Patents

Process for the production of a real vat dye.

Info

Publication number
CH152776A
CH152776A CH152776DA CH152776A CH 152776 A CH152776 A CH 152776A CH 152776D A CH152776D A CH 152776DA CH 152776 A CH152776 A CH 152776A
Authority
CH
Switzerland
Prior art keywords
real
production
vat dye
vat
dye
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 CH152776A publication Critical patent/CH152776A/en

Links

Landscapes

  • Nitrogen Condensed Heterocyclic Rings (AREA)

Description

  

  Verfahren zur     Herstellung    eines echten     Küpenfarbstofes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines echten     Küpen-          farbatoffes,    dadurch gekennzeichnet, dass man       N-@Iethyl-pyrazolanthron-    2 -     carbonsäurechlo-          rid    mit     1-Aminoanthrachinon    kondensiert.  



  Der neue Farbstoff bildet gelbbraune  Kristalle. Er färbt aus rotbrauner     güpe     Baumwolle in gelben Tönen an.  



  <I>Beispiel:</I>  30 kg     N-biethyl-pyrazolantbron-2-carborr-          säurechlorid    werden mit 1000 kg     Dichlorben-          zol    und 23 kg     1-Aminoanthrachinon    solange  unter     Rückfluss    zum Sieden erhitzt, bis die       Salzsäureentwicklung    aufhört. Das in     Form     gelbbrauner     .Kristalle    ausgeschiedene .Reak-         tionsprodukt    wird abgesaugt     Lind    ausge  waschen.



  Process for the production of a real vat dye. The present patent relates to a process for the production of a real vat colorant, characterized in that N- @ ethyl-pyrazolanthrone-2-carboxylic acid chloride is condensed with 1-aminoanthraquinone.



  The new dye forms yellow-brown crystals. He dyes red-brown güpe cotton in yellow tones.



  <I> Example: </I> 30 kg of N-bidhyl-pyrazolantbron-2-carboronic acid chloride are refluxed with 1000 kg of dichlorobenzene and 23 kg of 1-aminoanthraquinone until the evolution of hydrochloric acid ceases. The reaction product precipitated in the form of yellow-brown crystals is filtered off with suction and washed out.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines echten Küpenfarbstoffes, dadurch gekennzeichnet, dass man N-DTethyl-pyrazolanthron-2-carbon- säurechlorid mit 1-Aminoanthrachinon kon densiert. Der neue Farbstoff bildet gelbbraune Kristalle. Er färbt aus rotbrauner Küpe Baumwolle in gelben Tönen an. PATENT CLAIM: Process for the production of a real vat dye, characterized in that N-DTethyl-pyrazolanthrone-2-carboxylic acid chloride is condensed with 1-aminoanthraquinone. The new dye forms yellow-brown crystals. He dyes cotton in yellow tones from a red-brown vat.
CH152776D 1929-07-20 1930-07-03 Process for the production of a real vat dye. CH152776A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE152776X 1929-07-20
CH149709T 1930-07-03

Publications (1)

Publication Number Publication Date
CH152776A true CH152776A (en) 1932-02-15

Family

ID=25715486

Family Applications (1)

Application Number Title Priority Date Filing Date
CH152776D CH152776A (en) 1929-07-20 1930-07-03 Process for the production of a real vat dye.

Country Status (1)

Country Link
CH (1) CH152776A (en)

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