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CH295304A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH295304A
CH295304A CH295304DA CH295304A CH 295304 A CH295304 A CH 295304A CH 295304D A CH295304D A CH 295304DA CH 295304 A CH295304 A CH 295304A
Authority
CH
Switzerland
Prior art keywords
sulfur
production
sulfur dye
way
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Cas Mainkur
Original Assignee
Cassella Farbwerke Mainkur 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 Cassella Farbwerke Mainkur Ag filed Critical Cassella Farbwerke Mainkur Ag
Publication of CH295304A publication Critical patent/CH295304A/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,     dadureh    gekennzeichnet, dass man       ?.2'=Dianthrylamin    mit einem schwefelnden       .Mittel    behandelt und die dabei erhaltene Roh  sehmelze     unter    Verwendung von Schwefel  alkali aufschliesst.  



  Der so erhaltene Schwefelfarbstoff ist ein  schwarzes Pulver und färbt die pflanzliche  Faser aus dem     Schwefelnatriumbade    in     grau-          stiehig    braunen Tönen von guter     Lichteeht-          heit.     



  <I>Beispiel:</I>  In eine     Polysiilfidschmelze    aus 140 Teilen  kristallisiertem Schwefelnatrium und 80 Tei  len Schwefel werden bei Kochtemperatur 40  Teile     9.2'-Dianthrylamin    eingetragen. Die       Sehmelze    wird mehrere Stunden bei 118  unter       Rfiekfluss    gekocht, dann eingetrocknet, an-    schliessend die Temperatur, auf 270  erhöht  und etwa acht Stunden bei 270 bis 280  gehal  ten. Durch Nachbehandlung mit Schwefel  natrium und Natronlauge wird der Farbstoff  in üblicher     Weise    aufgeschlossen und auf  gearbeitet.



  Additional patent to main patent number 231495. Process for the production of a sulfur dye. The present patent relates to a process for the production of a sulfur dye, which is characterized in that ".2" = dianthrylamine is treated with a sulphurizing agent and the raw clay 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 grayish brown shades of good lightfastness.



  <I> Example: </I> 40 parts of 9.2'-dianthrylamine are introduced into a polysilicon melt of 140 parts of crystallized sodium sulphide and 80 parts of sulfur at the boiling temperature. The Sehmelze is boiled for several hours at 118 under flux, then dried, then the temperature is increased to 270 and held for about eight hours at 270 to 280. The dye is broken down and dissolved in the usual way by post-treatment with sodium sulphide and sodium hydroxide solution worked.

Claims (1)

PATENTANSPRUCH ,Verfahren zur Herstellung eines Schwefel farbstoffes, dadurch gekennzeichnet, dass man 2.2'-Dianthrylamin 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 lind färbt die pflanzliche Faser aus dem Sehwefelnatriumbade in grau stichig braunen Tönen von guter Lichtecht heit. PATENT CLAIM, process for the production of a sulfur dye, characterized in that 2,2'-dianthrylamine is treated with a sulphurizing agent and the crude melt obtained in this way is broken down using alkali sulfur. The sulfur dye obtained in this way is a black powder. It dyes the vegetable fibers from the sulfur sodium bath in gray, brown tones of good lightfastness.
CH295304D 1944-01-31 1944-01-31 Process for the production of a sulfur dye. CH295304A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH295304T 1944-01-31
CH231495T 1944-03-09

Publications (1)

Publication Number Publication Date
CH295304A true CH295304A (en) 1953-12-15

Family

ID=25727593

Family Applications (1)

Application Number Title Priority Date Filing Date
CH295304D CH295304A (en) 1944-01-31 1944-01-31 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH295304A (en)

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