CH109650A - Process for the production of a new vat dye. - Google Patents

Process for the production of a new vat dye.

Info

Publication number
CH109650A
CH109650A CH109650DA CH109650A CH 109650 A CH109650 A CH 109650A CH 109650D A CH109650D A CH 109650DA CH 109650 A CH109650 A CH 109650A
Authority
CH
Switzerland
Prior art keywords
production
new
vat dye
dye
red
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 CH109650A publication Critical patent/CH109650A/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
    • C09B49/00—Sulfur dyes
    • C09B49/12—Sulfur dyes from other compounds, e.g. other heterocyclic compounds
    • C09B49/128—Sulfur dyes from other compounds, e.g. other heterocyclic compounds from hydroxy compounds of the benzene or naphthalene series

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     güpenfarbstoffes.       Es wurde gefunden, dass man einen neuen       Küpenfarbstoff    erhält, wenn man     Thionyl-          chlorid    auf     2,5-Di-p#tolüididobenzochinon    ein  wirken lässt. Die Reaktion wird zweckmässig  in Gegenwart von Verdünnungsmitteln, wie  Nitrobenzol, gegebenenfalls in Gegenwart von  säurebindenden Mitteln, durchgeführt. Der  neue Farbstoff bildet ein rotbraunes Pulver,  das sich in konzentrierter Schwefelsäure mit  blauer Farbe löst und Wolle aus der     Hydro-          sulfitküpe    in rotgelben Nuancen färbt.  



       Beispiel:     8     Teile.2,5-Di-p-toluididobenzochinon    wer  den in 120 Teilen Nitrobenzol kalt mit 9 Tei  len     Thionylchlorid    versetzt und längere Zeit    bei     Zimmertemperatur    gerührt. Hierauf wird  filtriert, mit Alkohol gewaschen und ge  trocknet.



  Process for the production of a new high quality dye. It has been found that a new vat dye is obtained if thionyl chloride is allowed to act on 2,5-di-p # tolüididobenzoquinone. The reaction is expediently carried out in the presence of diluents such as nitrobenzene, if appropriate in the presence of acid-binding agents. The new dye forms a red-brown powder that dissolves in concentrated sulfuric acid with a blue color and dyes wool from the hydrosulfite vat in red-yellow shades.



       Example: 8 parts of 2,5-di-p-toluididobenzoquinone are added to 120 parts of cold nitrobenzene with 9 parts of thionyl chloride and the mixture is stirred for a long time at room temperature. It is then filtered, washed with alcohol and dried.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines. neuen Küpenfarbstoffes, dadurch gekennzeichnet, dass man Thionylehlorid auf 2,5-Di-p-toluididoben- zochinon einwirken lässt. Der neue Farbstoff bildet ein rotbraunes Pulver, das sich in kon zentrierter Schwefelsäure mit blauer Farbe löst und Wolle aus der Hydrosulfitküpe in rotgelben Nuancen färbt. PATENT CLAIM Method for producing a. new vat dye, characterized in that thionyl chloride is allowed to act on 2,5-di-p-toluididoben-zoquinone. The new dye forms a red-brown powder that dissolves in concentrated sulfuric acid with a blue color and dyes wool from the hydrosulfite vat in red-yellow shades.
CH109650D 1923-10-27 1923-11-24 Process for the production of a new vat dye. CH109650A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH108932T 1923-10-27
CH109650T 1923-11-24

Publications (1)

Publication Number Publication Date
CH109650A true CH109650A (en) 1925-04-01

Family

ID=25707493

Family Applications (1)

Application Number Title Priority Date Filing Date
CH109650D CH109650A (en) 1923-10-27 1923-11-24 Process for the production of a new vat dye.

Country Status (1)

Country Link
CH (1) CH109650A (en)

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