CH197771A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

Info

Publication number
CH197771A
CH197771A CH197771DA CH197771A CH 197771 A CH197771 A CH 197771A CH 197771D A CH197771D A CH 197771DA CH 197771 A CH197771 A CH 197771A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
vat
vat dye
condensation product
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 CH197771A publication Critical patent/CH197771A/en

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

Description

  

  Verfahren zur Darstellung eines     Nüpenfarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Darstellung eines Küpenfarb-         stoffes,    dadurch gekennzeichnet, dass man ein  Kondensationsprodukt, der Formel  
EMI0001.0003     
    mit     1-Nitroantbrachinon-2-carbonsäurechlorid     umsetzt.  



  Der so erhaltene     Farbstoff    löst sich in  Schwefelsäure mit grüner Farbe und färbt  Baumwolle aus schwärzlicher     güpe    violett.  Der Farbstoff ist durch gute Löslichkeit und  gutes     Egalisierungsvermögen    ausgezeichnet.  <I>Beispiel:</I>  53 Teile des Kondensationsproduktes der  oben angegebenen Formel werden mit     36       Teilen     1-Nitro    -     anthrachinon    - 2 -     carbonsäure-          chlorid    in Gegenwart von     o-Dichlorbenzol     durch mehrstündiges Erhitzen kondensiert.  Der schwer lösliche Farbstoff wird abgesaugt,  gewaschen und getrocknet.



  Process for the preparation of a pebble dye. The present patent relates to a process for the preparation of a vat dye, characterized in that a condensation product, of the formula
EMI0001.0003
    with 1-nitroantbrachinone-2-carboxylic acid chloride.



  The dye thus obtained dissolves in sulfuric acid with a green color and dyes cotton of a blackish color violet. The dye is distinguished by its good solubility and good leveling power. <I> Example: </I> 53 parts of the condensation product of the formula given above are condensed with 36 parts of 1-nitro-anthraquinone-2-carboxylic acid chloride in the presence of o-dichlorobenzene by heating for several hours. The sparingly soluble dye is filtered off, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man das Kondensationsprodukt, der Formel EMI0002.0001 mit 1-Nitroanthrachinon-2-carbonsäurechlorid umsetzt. Der so erhaltene Farbstoff löst sich in Schwefelsäure mit grüner Farbe und färbt Baumwolle aus schwärzlicher Küpe violett. Der Farbstoff ist durch gute Löslichkeit und gutes Egalisierungsvermögen ausgezeichnet. PATENT CLAIM: Process for the preparation of a vat dye, characterized in that the condensation product of the formula EMI0002.0001 with 1-nitroanthraquinone-2-carboxylic acid chloride. The dye thus obtained dissolves in sulfuric acid with a green color and dyes cotton from a blackish vat purple. The dye is distinguished by its good solubility and good leveling power.
CH197771D 1935-07-27 1936-07-17 Process for the preparation of a vat dye. CH197771A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197771X 1935-07-27
CH193345T 1936-07-17

Publications (1)

Publication Number Publication Date
CH197771A true CH197771A (en) 1938-05-15

Family

ID=25722491

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197771D CH197771A (en) 1935-07-27 1936-07-17 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH197771A (en)

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