CH109624A - Process for the production of a new vat dye. - Google Patents

Process for the production of a new vat dye.

Info

Publication number
CH109624A
CH109624A CH109624DA CH109624A CH 109624 A CH109624 A CH 109624A CH 109624D A CH109624D A CH 109624DA CH 109624 A CH109624 A CH 109624A
Authority
CH
Switzerland
Prior art keywords
production
new
dye
vat dye
violet
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 CH109624A publication Critical patent/CH109624A/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)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     liüpenfarbstoffes.       Es wurde gefunden, dass man einen neuen       Küpenfarbstoff    erhält, wenn man     Schwefel-          dichlorid    (S     C12)    auf 2.     5-Dianilidobenzo-          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 dunkelbraunes Pul  ver, das sich in konzentrierter Schwefelsäure  mit     violettblauer    Farbe löst und Wolle aus  der     Hydrosulfitküpe    in vollen echten,     violett-          braunen    Nuancen färbt.    <I>Beispiel:</I>  7,2 Teile 2.     5-Dianilidobenzochino@n,        sus-          pendiert    in 144 Teilen' Nitrobenzol, werden  bei 5   mit 8 Teilen     Schwefeldichlorid    (S     C12)     versetzt, in drei Stunden bis auf 100 bis  <B>110,</B> erwärmt und drei Stunden bei dieser  Temperatur unter Rühren belassen. Nach    ,dem Erkalten wird filtriert, gewaschen und  getrocknet.

   Der so     erhaltene    Farbstoff be  sitzt die in der Einleitung beschriebenen Ei  genschaften. Ein sehr ähnliches Produkt ent  steht, wenn man in der Siedehitze des Ge  misches oder unter Zusatz von Magnesia, ar  beitet.



  Process for the production of a new liüpen dye. It has been found that a new vat dye is obtained if sulfur dichloride (S C12) is allowed to act on 2.5-dianilidobenzoquinone at a higher temperature. The reaction is expediently carried out in the presence of diluents such as nitrobenzene. optionally carried out in the presence of acid-binding agents.

   The new dye forms a dark brown powder that dissolves in concentrated sulfuric acid with a violet-blue color and dyes wool from the hydrosulfite vat in full, genuine, violet-brown shades. <I> Example: </I> 7.2 parts of 2. 5-dianilidobenzochino @ n, suspended in 144 parts of nitrobenzene, are mixed with 8 parts of sulfur dichloride (S C12) at 5, in three hours up to 100 to <B> 110 </B> heated and left for three hours at this temperature while stirring. After cooling, it is filtered, washed and dried.

   The dye obtained in this way has the properties described in the introduction. A very similar product arises when you work at the boiling point of the mixture or with the addition of magnesia.

Claims (1)

PATENTANSPRUCFI Verfahren zur Herstellung eines neuen Küpenfarbstoffes, dadurch gekennzeichnet; dass man Schwefeldichlorid (S<B>Cl,)</B> auf 2 . 5- Dianilidobenzochinon bei höherer Temperatur einwirken lässt. Der neue Farbstoff bildet ein dunkelbraunes Pulver, das sich in kon zentrierter Schwefelsäure mit violettblauer Farbe löst und Wolle aus der Hydrosulfit- küpe in vollen echten, violettbraunen Nuan cen färbt. PATENT APPLICATION Process for the production of a new vat dye, characterized in that; that sulfur dichloride (S <B> Cl,) </B> on 2. 5- Dianilidobenzoquinone to act at a higher temperature. The new dye forms a dark brown powder that dissolves in concentrated sulfuric acid with a violet-blue color and dyes wool from the hydrosulfite vat in full, genuine, violet-brown shades.
CH109624D 1923-10-27 1923-11-17 Process for the production of a new vat dye. CH109624A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH108932T 1923-10-27
CH109624T 1923-11-17

Publications (1)

Publication Number Publication Date
CH109624A true CH109624A (en) 1925-04-01

Family

ID=25707467

Family Applications (1)

Application Number Title Priority Date Filing Date
CH109624D CH109624A (en) 1923-10-27 1923-11-17 Process for the production of a new vat dye.

Country Status (1)

Country Link
CH (1) CH109624A (en)

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