CH186174A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH186174A
CH186174A CH186174DA CH186174A CH 186174 A CH186174 A CH 186174A CH 186174D A CH186174D A CH 186174DA CH 186174 A CH186174 A CH 186174A
Authority
CH
Switzerland
Prior art keywords
production
brown
vat
dye
vat dye
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH186174A publication Critical patent/CH186174A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B57/00—Other synthetic dyes of known constitution
    • C09B57/001—Pyrene dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  <B>Zusatzpatent</B>     zum.    Hauptpatent Nr. 182723.    Verfahren zur Herstellung eines     Nüpenfarbstoffes.       Es wurde gefunden, dass man einen     Küpen-          farbstoff    herstellen kann, wenn man 1     Mol          tetrachloriertes        Pyrenchinon    vom Schmelz  punkt<B>3620</B> mit 1     Mol        2-Chlor-4-methyl-l-          aminobenzot    umsetzt.  



  Der erhaltene     Farbstoff    stellt ein braun  grünes Pulver dar, das aus Nitrobenzol um  kristallisiert werden kann. Es schmilzt bei  285-290  , löst sich in konzentrierter Schwe  felsäure mit brauner Farbe und färbt Baum  wolle aus     orangebraun    gefärbter     Küpe    in       gelböliven    Tönen von guter Echtheit.

      <I>Beispiel:</I>    37 Teile     Tetrachlorpyrenchinon    vom  Schmelzpunkt<B>3620,</B> 57 Teile     2-Chlor-4-          methyl-l-amiiiobenzol    und wenig Naturkupfer  C werden in 300 Volumenteilen     Trichlor-          benzol    suspendiert und während 20 Stunden  bei einer Temperatur von 120-1250 ver-    rührt. Nach Beendigung der Reaktion wird  filtriert, mit Benzol gewaschen und ge  trocknet.



  <B> Additional patent </B> for. Main patent no. 182723. Process for the production of a pebble dye. It has been found that a vat dye can be produced by reacting 1 mole of tetrachlorinated pyrenquinone with a melting point of 3620 with 1 mole of 2-chloro-4-methyl-1-aminobenzot.



  The dye obtained is a brown-green powder that can be crystallized from nitrobenzene. It melts at 285-290, dissolves in concentrated sulfuric acid with a brown color and dyes cotton from an orange-brown vat in yellow-oil shades of good fastness.

      <I> Example: </I> 37 parts of tetrachloropyrenquinone with a melting point of <B> 3620, </B> 57 parts of 2-chloro-4-methyl-1-amiobenzene and a little natural copper C are suspended in 300 parts by volume of trichlorobenzene and during Stirred for 20 hours at a temperature of 120-1250. After the reaction has ended, it is filtered, washed with benzene and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man 1 Mol tetrachloriertes Pyrenchinon vom Schmelzpunkt 362 mit 1 Mol 2-Chlor-4- methyl-l-aminobenzol umsetzt. Der erhaltene Farbstoff stellt ein braun grünes Pulver dar, das aus Nitrobenzol um kristallisiert werden kann. PATENT CLAIM: Process for the production of a vat dye, characterized in that 1 mol of tetrachlorinated pyrenquinone with a melting point of 362 is reacted with 1 mol of 2-chloro-4-methyl-1-aminobenzene. The dye obtained is a brown-green powder that can be crystallized from nitrobenzene. Es schmilzt bei 285-290 , löst sieb in konzentrierter Schwe felsäure mit brauner Farbe und färbt Baum wolle aus orangebraun gefärbter Küpe in gelboliven Tönen von guter Echtheit. It melts at 285-290, dissolves in concentrated sulfuric acid with a brown color and dyes cotton from an orange-brown vat in yellow-olive shades of good fastness.
CH186174D 1934-07-07 1934-07-07 Process for the production of a vat dye. CH186174A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH186174T 1934-07-07
CH182723T 1934-07-07

Publications (1)

Publication Number Publication Date
CH186174A true CH186174A (en) 1936-08-31

Family

ID=25720791

Family Applications (1)

Application Number Title Priority Date Filing Date
CH186174D CH186174A (en) 1934-07-07 1934-07-07 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH186174A (en)

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