CH231649A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH231649A
CH231649A CH231649DA CH231649A CH 231649 A CH231649 A CH 231649A CH 231649D A CH231649D A CH 231649DA CH 231649 A CH231649 A CH 231649A
Authority
CH
Switzerland
Prior art keywords
sulfur
production
dye
sulfur dye
aminophenyl
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 CH231649A publication Critical patent/CH231649A/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

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 226453.    Verfahren zur Herstellung eines     Schwefelfarbstoffes.       Vorliegendes Patent bezieht sich auf     ein     Verfahren zur Herstellung eines Schwefel  farbstoffes, dadurch gekennzeichnet, dass man       14-(4'-Aminophenyl)-coeramidonin    mit einem       Schwefel-Chlorschwefelgemisch    behandelt.  



  Der so erhaltene Farbstoff ist ein schwärz  liches Pulver und färbt die pflanzliche Faser  aus dem     Schwefelnatriumbad    in dunkelbrau  nen Tönen von     guter    Echtheit,     insbesondere     von guter Lichtechtheit.  



  <I>Beispiel:</I>  Zu einer Schmelze von 12 Teilen Schwefel  in 150 Teilen Chlorschwefel werden allmäh  lich 40 Teile     14-(4'-Aminophenyl)-coeramido-          nin    bei 70 bis 80  eingetragen. Man heizt  langsam auf 150 , kocht 1 Stunde unter Rück  fluss und destilliert dann bis zur Trockne.    Dann wird die Temperatur auf 270  erhöht  und 6 Stunden bei dieser Temperatur gehal  ten. Durch Nachbehandlung mit Schwefel  natrium und Natronlauge wird der Farbstoff  in üblicher Weise aufgeschlossen und auf  gearbeitet.



      Additional patent to main patent No. 226453. Process for the production of a sulfur dye. The present patent relates to a process for the preparation of a sulfur dye, characterized in that 14- (4'-aminophenyl) -coeramidonine is treated with a sulfur-chlorosulfur mixture.



  The dye thus obtained is a blackish powder and dyes the vegetable fiber from the sulfur-sodium bath in dark brown shades of good fastness, in particular good light fastness.



  <I> Example: </I> 40 parts of 14- (4'-aminophenyl) -coeramidino- nine at 70 to 80 are gradually added to a melt of 12 parts of sulfur in 150 parts of chlorosulphur. The mixture is slowly heated to 150, refluxed for 1 hour and then distilled to dryness. The temperature is then increased to 270 and held at this temperature for 6 hours. After-treatment with sodium sulphide and sodium hydroxide solution, the dye is digested and worked on in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Schwefel farbstoffes, dadurch gekennzeichnet, dass man 14-(4'-Aminophenyl)-coeramidonin mit einem Schwefel-Chlorschwefelgemisch behandelt. Der so erhaltene Farbstoff ist ein schwärz liches Pulver und färbt die pflanzliche Faser aus dem Schwefelnatriumbad in dunkelbrau nen Tönen von guter Echtheit, insbesondere von guter Lichtechtheit. Claim: Process for the production of a sulfur dye, characterized in that 14- (4'-aminophenyl) -coeramidonine is treated with a sulfur-chlorosulfur mixture. The dye thus obtained is a blackish powder and dyes the vegetable fiber from the sulfur-sodium bath in dark brown shades of good fastness, in particular good light fastness.
CH231649D 1941-04-30 1942-03-21 Process for the production of a sulfur dye. CH231649A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE231649X 1941-04-30
CH226453T 1943-03-02

Publications (1)

Publication Number Publication Date
CH231649A true CH231649A (en) 1944-03-31

Family

ID=25726996

Family Applications (1)

Application Number Title Priority Date Filing Date
CH231649D CH231649A (en) 1941-04-30 1942-03-21 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH231649A (en)

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