CH235711A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH235711A
CH235711A CH235711DA CH235711A CH 235711 A CH235711 A CH 235711A CH 235711D A CH235711D A CH 235711DA CH 235711 A CH235711 A CH 235711A
Authority
CH
Switzerland
Prior art keywords
sulfur
production
sulfur dye
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 CH235711A publication Critical patent/CH235711A/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. 231495.  Verfahren zur Herstellung eines     Schwefelfarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung     eines    Schwefel  farbstoffes, dadurch gekennzeichnet, dass man       1-Anilidoanthracen    mit einem schwefelnden  Mittel behandelt und die dabei erhaltene Roh  schmelze     unter    Verwendung von Schwefel  alkali     aufschliesst.     



  Der so erhaltene Schwefelfarbstoff     ist    ein  schwarzes Pulver und färbt die pflanzliche  Faser aus dem     Schwefelnatriumbade    in oliv  stichig grauen Tönen von guter Lichtechtheit.  <I>Beispiel:</I>  Zu einer Schmelze von 12 Teilen Schwe  fel     in    150 Teilen Chlorschwefel werden all  mählich 40 Teile     1-Anilidoanthracen,    das  aus     1-Anilidoanthrachinon    durch Reduktion  mit     Zinkstaub    in üblicher Weise hergestellt  werden     kann    und,     aus        Benzin    umkristalli  siert, bei 125      schmilzt,    bei 70 bis 80  ein  getragen.

   Man heizt langsam auf 150 , kocht  etwa 1 Stunde unter     Rückfluss        und    destilliert    dann     bis        zur        Trockne    ab. Dann     wird    die  Temperatur auf 270  erhöht und     etwa    6 Stun  den bei dieser Temperatur gehalten. Durch  Nachbehandlung mit     Schwefelnatrium    und  Natronlauge wird der Farbstoff in üblicher  Weise aufgeschlossen     und    aufgearbeitet.



      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-anilidoanthracene is treated with a sulphurizing agent and the crude melt obtained in this way is digested using alkali sulfur.



  The sulfur dye obtained in this way is a black powder and colors the vegetable fibers from the sulfur-sodium bath in olive gray tones of good lightfastness. <I> Example: </I> To a melt of 12 parts of sulfur in 150 parts of chlorosulphur, 40 parts of 1-anilidoanthracene, which can be prepared in the usual way from 1-anilidoanthraquinone by reduction with zinc dust and from gasoline, are gradually recrystallized siert, melts at 125, worn at 70 to 80.

   The mixture is slowly heated to 150, refluxed for about 1 hour and then distilled to dryness. Then the temperature is increased to 270 and held at this temperature for about 6 hours. The dye is broken down and worked up in the usual way by aftertreatment with sodium sulphide and sodium hydroxide solution.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Schwe felfarbstoffes, dadurch gekennzeichnet, dass man 1-Anilidoanthracen mit einem schwe felnden Mittel behandelt und die dabei er haltene Rohschmelze unter Verwendung von Schwefelalkali aufschliesst. Der so erhaltene Schwefelfarbstoff ist ein schwarzes Pulver und färbt die pflanzliche Faser aus dem Schwefelnatriumbade in oliv stichig grauen Tönen von guter Lichtecht heit. PATENT CLAIM: A process for the production of a sulfur dye, characterized in that 1-anilidoanthracene is treated with a sulphurous agent and the crude melt obtained in the process is broken down using alkali sulfur. The sulfur dye obtained in this way is a black powder and colors the vegetable fibers from the sulfur-sodium bath in olive gray tones of good lightfastness.
CH235711D 1942-07-25 1943-04-06 Process for the production of a sulfur dye. CH235711A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE235711X 1942-07-25
CH231495T 1944-03-09

Publications (1)

Publication Number Publication Date
CH235711A true CH235711A (en) 1944-12-15

Family

ID=25727603

Family Applications (1)

Application Number Title Priority Date Filing Date
CH235711D CH235711A (en) 1942-07-25 1943-04-06 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH235711A (en)

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