CH235706A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH235706A
CH235706A CH235706DA CH235706A CH 235706 A CH235706 A CH 235706A CH 235706D A CH235706D A CH 235706DA CH 235706 A CH235706 A CH 235706A
Authority
CH
Switzerland
Prior art keywords
production
sulfur
dye
sulfur dye
way
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 CH235706A publication Critical patent/CH235706A/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
    • C09B49/04—Sulfur dyes from amino compounds of the benzene, naphthalene or anthracene series

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpatent        zum    Hauptpatent Nr. 281495.    Verfahren zur     Herstellung        eines        Schwefelfarbstoffes.       Vorliegendes Patent bezieht sich     auf        ein          Verfahren    zur     Herstellung    eines Schwefel  farbstoffes, dadurch     gekennzeichnet,

      dass man  1.5 -     Di    - p -     toluido    -     anthrachinon    mit einem       schwefelnden    Mittel     in    Gegenwart     einer        Kup-          ferverbindung        behandelt    und die dabei erhal  tene Rohschmelze     unter        Verwendung    von  Schwefelalkali .aufschliesst.  



  Der so erhaltene Farbstoff ist     ein    dunkles       Pulver    und färbt die     pflanzliche    Faser in       gelbstichig        aliven    Tönen,     insbesondere    von  einer sehr guten Lichtechtheit.  



  <I>Beispiel:</I>  Zu     einer    Schmelze von 12     Teilen    Schwe  fel in 150     Teilen    Chlorschwefel werden all  mählich 40     Teile    1.5 -     Di    - p -     toluido    -     anthra-          chin.on    bei 70 bis 80      eingetragen.    Man heizt  langsam. auf 150 , kocht 1 Stunde     unter          Rückfluss        und        destilliert    dann     bis    zur  Trockne.

   Das Trockengut wird mit 6 Teilen    Kupfervitriol und 10 Teilen Schwefel ver  mischt und 8     Stunden    auf 270  erhitzt. Durch       Nachbehandlung        mit        Schwefelnatrium.    und  Lauge     wird    der Farbstoff in üblicher     Weise     aufgeschlossen.



      Additional patent to main patent No. 281495. Process for the production of a sulfur dye. The present patent relates to a process for the production of a sulfur dye, characterized in that

      that 1.5 - di - p - toluido - anthraquinone is treated with a sulphurizing agent in the presence of a copper compound and the crude melt obtained in this way is digested using alkali sulfur.



  The dye obtained in this way is a dark powder and colors the vegetable fibers in yellowish, alive shades, in particular of very good lightfastness.



  <I> Example: </I> To a melt of 12 parts of sulfur in 150 parts of chlorinated sulfur, 40 parts of 1.5 - di - p - toluido - anthracin.on at 70 to 80 are gradually added. One heats slowly. to 150, reflux for 1 hour and then distilled to dryness.

   The dry material is mixed with 6 parts of vitriol and 10 parts of sulfur and heated to 270 for 8 hours. By post-treatment with sodium sulphide. and lye, the dye is digested in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Schwe felfarbstoffes, dadurch gekennzeichnet, dass man 1.5-Di-p-toluido-anthrachinon mit einem schwefelnden Mittel in Gegenwart einer Kup- ferverbindung behandelt und die dabei er haltene Rohschmelze unter Verwendung von Schwefelalkali aufschliesst. Der so erhaltene Farbstoff ist ein dunk les Pulver und färbt die pflanzliche Faser in gelbstickig oliven Tönen, insbesondere von einer sehr guten Lichtechtheit. PATENT CLAIM: Process for the production of a sulfur dye, characterized in that 1,5-di-p-toluido-anthraquinone is treated with a sulphurizing agent in the presence of a copper compound and the crude melt obtained in the process is broken down using alkali sulfur. The dye obtained in this way is a dark powder and dyes the vegetable fiber in yellowish olive tones, in particular of very good lightfastness.
CH235706D 1941-12-18 1942-12-21 Process for the production of a sulfur dye. CH235706A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE235706X 1941-12-18
CH231495T 1944-03-09

Publications (1)

Publication Number Publication Date
CH235706A true CH235706A (en) 1944-12-15

Family

ID=25727598

Family Applications (1)

Application Number Title Priority Date Filing Date
CH235706D CH235706A (en) 1941-12-18 1942-12-21 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH235706A (en)

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