CH235705A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH235705A
CH235705A CH235705DA CH235705A CH 235705 A CH235705 A CH 235705A CH 235705D A CH235705D A CH 235705DA CH 235705 A CH235705 A CH 235705A
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 CH235705A publication Critical patent/CH235705A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B49/00Sulfur dyes
    • C09B49/04Sulfur 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. 231495.    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    -     anthrächinon    mit einem  schwefelnden Mittel behandelt     und    die dabei  erhaltene Rohschmelze unter     Verwendung     von Schwefelalkali aufschliesst.  



  Der so erhaltene Farbstoff     ist        ein        dunkles     Pulver und färbt die pflanzliche Faser in  echten braunstickig oliven Tönen, insbeson  dere 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 -     toluidö    -     anthra-          chinon    bei 70 bis 80      eingetragen.    Man heizt  langsam auf 150 , kocht 1     Stunde    unter       Rüekfluss    und destilliert dann bis zur    Trockne. Dann wird die     Temperatur    auf  270  erhöht und 8     Stunden    bei dieser Tem  peratur gehalten. Durch Nachbehandlung mit  Schwefelnatrium und Lauge wird der Farb  stoff in üblicher Weise aufgeschlossen.



  Additional patent to main patent no. 231495. 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 1,5 - di - p - toluido - anthraquinone is treated with a sulphurizing agent and the resulting crude melt is broken down using alkali sulfur.



  The dye obtained in this way is a dark powder and dyes the vegetable fiber in real brownish olive tones, in particular very good lightfastness.



  <I> Example: </I> To a melt of 12 parts of sulfur in 150 parts of chlorosulphur, 40 parts of 1.5 - di - p - toluidö - anthraquinone at 70 to 80 are gradually added. The mixture is slowly heated to 150, refluxed for 1 hour and then distilled to dryness. Then the temperature is increased to 270 and kept at this temperature for 8 hours. After treatment with sodium sulphide and lye, the dye is broken down 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 behandelt und die dabei erhaltene Rohschmelze unter Verwendung von Schwefelalkali aufschliesst. Der so erhaltene Farbstoff ist ein dunkles Pulver und färbt die pflanzliche Faser in echten braunstickig oliven Tönen, insbeson dere 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 and the crude melt obtained in this way is broken down using alkali sulfur. The dye obtained in this way is a dark powder and dyes the vegetable fiber in real brownish olive tones, in particular very good lightfastness.
CH235705D 1941-12-18 1942-12-21 Process for the production of a sulfur dye. CH235705A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE235705X 1941-12-18
CH231495T 1944-03-09

Publications (1)

Publication Number Publication Date
CH235705A true CH235705A (en) 1944-12-15

Family

ID=25727597

Family Applications (1)

Application Number Title Priority Date Filing Date
CH235705D CH235705A (en) 1941-12-18 1942-12-21 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH235705A (en)

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