CH216327A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH216327A
CH216327A CH216327DA CH216327A CH 216327 A CH216327 A CH 216327A CH 216327D A CH216327D A CH 216327DA CH 216327 A CH216327 A CH 216327A
Authority
CH
Switzerland
Prior art keywords
production
dye
sulfur dye
dichlorobenzene
tones
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 CH216327A publication Critical patent/CH216327A/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
    • C09B49/124—Sulfur dyes from other compounds, e.g. other heterocyclic compounds from polycarbocyclic compounds

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 213909.    Verfahren zur Herstellung eines Schwefelfarbstoffes.    Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen Baumwolle in  sehr guten, echten Tönen färbenden Farb  stoff, wenn man     Coronen    mit schwefelnden  Mitteln     behandelt.     



  Wie nun weiter gefunden wurde, erhält  man einen Baumwolle in     ähnlichen        Khaki-          tönen    färbenden Farbstoff, wenn man     Ennea-          chloreoronen,    erhältlich durch Chlorieren von       Coronen    in     o-Dichlorbenzol    als in diesem  Lösungsmittel gelöstes Produkt, mit schwe  felnden Mitteln behandelt.  



  <I>Beispiel:</I>  50 Gewichtsteile     Coronen    werden in   < 350     Raumteilen        o-Dichlorbenzal    bei<B>35'</B> mit  Chlor behandelt, das aus 200 Teilen 74%igem  Chlorkalk mit Salzsäure     hergestellt    wurde.

    Nach beendigtem     Chloreinleiten    wird abge  saugt, wobei 59 Gewichtsteile eines Rück  standes erhalten werden, der fast ausschliess  lich aus     Pentachlorcoronen    besteht, das in     Di-          ehlorbenzol    schwer löslich     ist.    Aus der Lauge  erhält man durch Abtreiben des Lösungs  mittels mit     Wasserdampf    etwa 23 Teile eines         höherchlorierten,    in     Dichlorbenzol    leicht  löslichen Produktes, das ein     Enneachloreoro-          nen    darstellt.  



  Das so erhaltene     Enneachlorcoronen    wird  ohne weitere     Reinigung    mit der     fünffachen     Menge Schwefel im     Verlauf    von 8     Stunden     auf<B>320'</B> erhitzt und etwa 12 Stunden bei  <B>320'</B> weiter gebacken.     Duroh    Aufschluss mit       Natriumsulfid    wird der Farbstoff in Lösung  gebracht     und    in der üblichen     Weise    abge  schieden. Er färbt Baumwolle     in    gedeckten       Khakitönen.  



  <B> Additional patent </B> to main patent no. 213909. Process for the production of a sulfur dye. According to the process described in the main patent, you get a cotton in very good, real tones coloring material, if you treat corones with sulphurous agents.



  As has now also been found, a dye which dyes cotton in similar khaki tones is obtained if ennechloreorones, obtainable by chlorinating corones in o-dichlorobenzene as a product dissolved in this solvent, are treated with sulfurizing agents.



  <I> Example: </I> 50 parts by weight of coronene are treated in <350 parts by volume of o-dichlorobenzal at <B> 35 '</B> with chlorine, which was produced from 200 parts of 74% chlorinated lime with hydrochloric acid.

    When the introduction of chlorine is complete, the mixture is filtered off with suction, 59 parts by weight of a residue being obtained which consists almost exclusively of pentachlorocoronene, which is sparingly soluble in dichlorobenzene. About 23 parts of a more highly chlorinated product which is readily soluble in dichlorobenzene and which is an enenechloro-ion are obtained from the liquor by stripping off the solution with steam.



  The enneachlorcoronene obtained in this way is heated to <B> 320 '</B> with five times the amount of sulfur in the course of 8 hours without further purification and baked for about 12 hours at <B> 320' </B>. Duroh digestion with sodium sulphide, the dye is brought into solution and deposited in the usual way. It dyes cotton in muted khaki tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines .Schwefel farbstoffes, dadurch gekennzeichnet, dass man Enneachlorcoronen, erhältlich durch Chlorie- ren von Coronen in o-Dichlorbenzol als in die sem Lösungsmittel gelöstes Produkt, mit schwefelnden Mitteln behandelt. Der in der üblichen Weise fertiggestellte Farbstoff färbt Baumwolle in gedeckten Khakitönen von sehr guter Lichtechtheit. PATENT CLAIM: A process for the production of a sulfur dye, characterized in that enneachlorocoronene, obtainable by chlorinating coronene in o-dichlorobenzene as a product dissolved in this solvent, is treated with sulfurizing agents. The dye, finished in the usual way, dyes cotton in muted khaki tones with very good lightfastness.
CH216327D 1938-12-13 1939-11-20 Process for the production of a sulfur dye. CH216327A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE216327X 1938-12-13
CH213909T 1939-11-20

Publications (1)

Publication Number Publication Date
CH216327A true CH216327A (en) 1941-08-15

Family

ID=25725524

Family Applications (1)

Application Number Title Priority Date Filing Date
CH216327D CH216327A (en) 1938-12-13 1939-11-20 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH216327A (en)

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