CH235703A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH235703A
CH235703A CH235703DA CH235703A CH 235703 A CH235703 A CH 235703A CH 235703D A CH235703D A CH 235703DA CH 235703 A CH235703 A CH 235703A
Authority
CH
Switzerland
Prior art keywords
sulfur
production
sulfur dye
way
dye
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 CH235703A publication Critical patent/CH235703A/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-p-Toluido-anthrachinon    mit einem schwe  felnden Mittel in Gegenwart einer     Kupfer-          verbindung    behandelt und die dabei erhaltene  Rohschmelze unter     Verwendung    von Schwe  felalkali aufschliesst.  



  Der so erhaltene Schwefelfarbstoff ist ein  dunkles Pulver und färbt die pflanzliche  Faser aus dem     Schwefelnatriumbad    in echten       alivstiohvg    grauen 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-p-Toluido-anthrachinon     bei 70 bis 80      eingetragen.    Man heizt lang  sam auf 150 , kocht 1 Stunde unter Rück  fluss und destilliert dann bis zur Trockne.  Das Trockengut wird mit 10 Teilen Kupfer-         vitriol    und 10 Teilen Schwefel vermischt und  8 Stunden auf 270  erhitzt.

   Durch Nach  behandlung mit     Schwefelnatrium    und Lauge  wird der Farbstoff in üblicher Weise auf  geschlossen.



  Additional patent for. Main patent no. 231495. Process for the preparation of a sulfur dye. The present patent relates to a process for the production of a sulfur dye, characterized in that 1-p-toluido-anthraquinone is treated with a sulfurizing agent in the presence of a copper compound and the crude melt obtained in this way is broken down using alkali sulfur.



  The sulfur dye obtained in this way is a dark powder and colors the vegetable fibers from the sulfur sodium bath in genuine alivstiohvg gray tones, in particular of very good lightfastness. <I> Example: </I> 40 parts of 1-p-toluido-anthraquinone at 70 to 80 are gradually added to a melt of 12 parts of sulfur in 150 parts of chlorosulphur. The mixture is heated slowly to 150, refluxed for 1 hour and then distilled to dryness. The dry material is mixed with 10 parts of copper vitriol and 10 parts of sulfur and heated to 270 for 8 hours.

   After treatment with sodium sulphide and alkali, the dye is closed in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Schwe felfarbstoffes, dadurch gekennzeichnet, dass man 1-p-Toluido-anthrachinon mit einem schwefelnden Mittel in Gegenwart einer Kupferverbindung behandelt und die dabei erhaltene Rohsichmelze unter Vew'endung von Schwefelalkali aufschliesst. PATENT CLAIM: A process for the production of a sulfur dye, characterized in that 1-p-toluido-anthraquinone is treated with a sulfurizing agent in the presence of a copper compound and the crude melt obtained in this way is opened up using alkali sulfur. Der so erhaltene Schwefelfarbstoff ist ein dunkles Pulver und färbt die pflanzliche Faser aus dem Schwefelnatriumbad in echten o@livstiehvg grauen Tönen, insbesondere von einer sehr guten Lichtechtheit. The sulfur dye obtained in this way is a dark powder and colors the vegetable fibers from the sulfur sodium bath in genuine gray tones, in particular of very good lightfastness.
CH235703D 1941-12-18 1942-12-21 Process for the production of a sulfur dye. CH235703A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE235703X 1941-12-18
CH231495T 1944-03-09

Publications (1)

Publication Number Publication Date
CH235703A true CH235703A (en) 1944-12-15

Family

ID=25727595

Family Applications (1)

Application Number Title Priority Date Filing Date
CH235703D CH235703A (en) 1941-12-18 1942-12-21 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH235703A (en)

Similar Documents

Publication Publication Date Title
CH235703A (en) Process for the production of a sulfur dye.
CH235705A (en) Process for the production of a sulfur dye.
CH235706A (en) Process for the production of a sulfur dye.
CH235708A (en) Process for the production of a sulfur dye.
CH217769A (en) Process for the production of a sulfur dye.
CH295305A (en) Process for the production of a sulfur dye.
CH235704A (en) Process for the production of a sulfur dye.
CH235710A (en) Process for the production of a sulfur dye.
CH235713A (en) Process for the production of a sulfur dye.
DE823167C (en) Process for the production of sulfur dyes
CH235707A (en) Process for the production of a sulfur dye.
CH295303A (en) Process for the production of a sulfur dye.
CH235711A (en) Process for the production of a sulfur dye.
DE925369C (en) Process for the production of new copper-containing disazo dyes
DE895812C (en) Process for the production of sulfur dyes
CH220662A (en) Process for the production of a sulfur dye.
DE900856C (en) Process for the production of sulfur dyes
CH247598A (en) Process for the preparation of a new monoazo dye.
DE477062C (en) Process for the preparation of sulphurous Kuepen dyes
CH262960A (en) Process for the preparation of a monoazo dye.
CH231649A (en) Process for the production of a sulfur dye.
CH125630A (en) Process for the production of a new sulfur dye.
CH125631A (en) Process for the production of a new sulfur dye.
CH235709A (en) Process for the production of a sulfur dye.
CH125123A (en) Process for the production of a new sulfur dye.