CH109632A - Process for the production of a new vat dye. - Google Patents

Process for the production of a new vat dye.

Info

Publication number
CH109632A
CH109632A CH109632DA CH109632A CH 109632 A CH109632 A CH 109632A CH 109632D A CH109632D A CH 109632DA CH 109632 A CH109632 A CH 109632A
Authority
CH
Switzerland
Prior art keywords
production
new
vat dye
new 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 CH109632A publication Critical patent/CH109632A/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)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Küpenfarbstofes.       <B>Es</B> wurde gefunden,     da.ss    man einen neuen       Küpenfarbstoff    erhält, wenn man     Sehwefel-          dichlorid        (S        C1)    auf     2,5-Di-p-toluididobenzo-          chinon    bei höherer Temperatur einwirken  lässt.

   Die Reaktion     wird    zweckmässig in Ge  genwart von Verdünnungsmitteln, wie Nitro  benzol, gegebenenfalls in Gegenwart von       säurebindenden        Mitteln,        .durchgeführt.    Der  neue Farbstoff bildet ein     dunkelrotbraunes     Pulver, das sich in     konzentrierter    Schwefel  säure mit     sehmutzigblauer    Farbe löst und  Wolle aus der     Hydrosulfitküpe    in violett  schwarzen Nuancen     färbt.     



  <I>Beispiel:</I>  7,9 Teile     2,5-Di-p-toluidi,dobenzochinon,          suspendiert    in 120 Teilen Nitrobenzol, wer  den bei 5   mit 7,8 Teilen     Schwefeldichlorid     (S     Ch)    versetzt, in drei Stunden bis auf 100    bis<B>110'</B> erwärmt und drei     Stunden    bei die  ser Temperatur unter Rühren belassen. Nach  dem Erkalten wird filtriert, gewaschen und       getro-eknet.  



  Process for the production of a new vat dye. It has been found that a new vat dye is obtained if sulfur dichloride (S C1) is allowed to act on 2,5-di-p-toluididobenzoquinone at a higher temperature.

   The reaction is conveniently carried out in the presence of diluents such as nitrobenzene, if appropriate in the presence of acid-binding agents. The new dye forms a dark red-brown powder, which dissolves in concentrated sulfuric acid with a viscous blue color and dyes wool from the hydrosulfite vat in purple-black shades.



  <I> Example: </I> 7.9 parts of 2,5-di-p-toluidi, dobenzoquinone, suspended in 120 parts of nitrobenzene, who added 7.8 parts of sulfur dichloride (S Ch) at 5, in three hours heated up to 100 to <B> 110 '</B> and left for three hours at this temperature with stirring. After cooling, it is filtered, washed and kneaded dry.

Claims (1)

PATENTANSPRUCII Verfahren zur Herstellung eines neuen Küpenfarbstoffes, dadurch gekennzeichnet, dass man Schwefeldichlorid (S <B>Cl,)</B> auf 2,5- Di-p-toluididobenzochinon bei höherer Tem peratur einwirken lässt. Der neue Farbstoff bildet ein dunkelrotbraunes Pulver, ,das sich in konzentrierter Schwefelsäure mit sehmut- zigblauer Farbe löst und Wolle aus der Ily- drosulfitküpe in violettschwarzen Nuancen färbt. PATENT CLAIM Process for the production of a new vat dye, characterized in that sulfur dichloride (S <B> Cl,) </B> is allowed to act on 2,5-di-p-toluididobenzoquinone at a higher temperature. The new dye forms a dark red-brown powder, which dissolves in concentrated sulfuric acid with a sassy blue color and dyes wool from the ilydrosulfite vat in purple-black shades.
CH109632D 1923-10-27 1923-11-17 Process for the production of a new vat dye. CH109632A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH108932T 1923-10-27
CH109632T 1923-11-17

Publications (1)

Publication Number Publication Date
CH109632A true CH109632A (en) 1925-04-01

Family

ID=25707475

Family Applications (1)

Application Number Title Priority Date Filing Date
CH109632D CH109632A (en) 1923-10-27 1923-11-17 Process for the production of a new vat dye.

Country Status (1)

Country Link
CH (1) CH109632A (en)

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