CH197183A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

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Publication number
CH197183A
CH197183A CH197183DA CH197183A CH 197183 A CH197183 A CH 197183A CH 197183D A CH197183D A CH 197183DA CH 197183 A CH197183 A CH 197183A
Authority
CH
Switzerland
Prior art keywords
production
vat
dye
vat dye
brown
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 CH197183A publication Critical patent/CH197183A/en

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Description

  

  Verfahren zur     I1 < erstellung        eines        güpenfarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines Küpenfarb-         stoffes,    dadurch gekennzeichnet, dass man das  Kondensationsprodukt der Formel:  
EMI0001.0005     
    mit     1-Nitro-anthrachinon-2-carbonsäurechlorid     behandelt. Der neue Farbstoff löst sich in  konzentrierter Schwefelsäure     mitgrüner    Farbe.  Er färbt Baumwolle aus dunkelbrauner     güpe     in sehr echten braunvioletten Tönen.

      <I>Beispiel:</I>  In eine Suspension von 66 Teilen des  Kondensationsproduktes der Formel:  
EMI0001.0009     
      in etwa 600 Teilen Nitrobenzol trägt man  allmählich bei etwa 160  C 35 Teile     1-Nitr-o-          anthrachinorr-2-carborrsäureclrlorid    ein und  rührt noch 5-8 Stunden bei Siedetempera  tur weiter-. Den neuen     Farbstoff    saugt man  noch warm ab, wäscht ihn aus und trocknet  ihn.  



  Der Ausgangskörper lässt sich beispiels  weise gemäss den Schweizer Patenten  Nr.     148372-148376    durch     ätzalkaliache    Kon  densation des Produktes erhalten, das durch  aufeinanderfolgende Kondensation von Bzr-         6-Dibrombenzanthron    mit je einem     Mol.    1  Amirro-5-benzoylarnirroarrthraclrinon und     1-          Aminoantlrrachinon    erhalten wird, wobei auch  die     Benzoylgruppe    unter     Verseifung    abgespal  ten wird. Dieser Ausgangskörper färbt Baum  wolle aus braunschwarzer     Küpe    in grauen  chlorunechten Tönen.



  Process for the creation of a quality dye. The present patent relates to a process for the production of a vat dye, characterized in that the condensation product of the formula:
EMI0001.0005
    treated with 1-nitro-anthraquinone-2-carboxylic acid chloride. The new dye dissolves in concentrated sulfuric acid with a green color. He dyes cotton from dark brown güpe in very real brown-violet tones.

      <I> Example: </I> In a suspension of 66 parts of the condensation product of the formula:
EMI0001.0009
      35 parts of 1-nitr-o-anthraquinor-2-carboric acid chloride are gradually introduced into about 600 parts of nitrobenzene at about 160 ° C. and the mixture is stirred for a further 5-8 hours at boiling temperature. The new dye is sucked off while it is still warm, washed off and dried.



  The starting body can, for example, according to Swiss Patents No. 148372-148376 by caustic alkali condensation of the product obtained by successive condensation of Bzr-6-dibromobenzanthrone with one mole each of 1 amirro-5-benzoylarnirroarrthraclrinone and 1-aminoantlrrachinone , whereby the benzoyl group is also split off with saponification. This initial body dyes cotton from a brown-black vat in gray, non-chlorine shades.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines Küpen- farbstoffea, dadurch gekennzeichnet, dass man das Kondensationsprodukt der Formel: EMI0002.0016 mit 1-Nitro-arrtlrrachirrorr-2-carborrsärrr-eclrlorid behandelt. Der neue Farbstoff löst sich in konzen trierter Schwefelsäure mit grüner Farbe. Er färbt Baumwolle aus dunkelbrauner Küpe in sehr echten braunvioletten Tönen. PATENT CLAIM Process for the production of a vat dye a, characterized in that the condensation product of the formula: EMI0002.0016 treated with 1-nitro-arrtlrrachirrorr-2-carborrsärrr-eclrlorid. The new dye dissolves in concentrated sulfuric acid with a green color. He dyes cotton from a dark brown vat in very real brown-violet tones.
CH197183D 1935-07-17 1936-07-09 Process for the production of a vat dye. CH197183A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197183X 1935-07-17
CH193621T 1936-07-09

Publications (1)

Publication Number Publication Date
CH197183A true CH197183A (en) 1938-04-15

Family

ID=25722549

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197183D CH197183A (en) 1935-07-17 1936-07-09 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH197183A (en)

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