CH220661A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH220661A
CH220661A CH220661DA CH220661A CH 220661 A CH220661 A CH 220661A CH 220661D A CH220661D A CH 220661DA CH 220661 A CH220661 A CH 220661A
Authority
CH
Switzerland
Prior art keywords
production
sulfur dye
dye
sulfur
dinitrodibenzodiazapyren
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 CH220661A publication Critical patent/CH220661A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr. 217769.    Verfahren zur Herstellung eines     Schwefelfarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines Schwefel  farbstoffes, dadurch gekennzeichnet, dass man       Dinitrodibenzodiazapyren    (hergestellt durch  Nitrieren des     4,5,9,10-dibenzo-3,8-diazapyrens     in konzentrierter Schwefelsäure mit 2     Mol.          100%iger    Salpetersäure) mit einem schwe  felnden Mittel behandelt.  



  Der so erhaltene Farbstoff ist ein schwar  zes Pulver und färbt die pflanzliche Faser  aus dem     Schwefelnatriumbad    in bräunlich  oliven Tönen.  



       Beispiel:     In eine     Polysulfidschmelze    aus 56 Teilen       luistallisiertem    Schwefelnatrium und 32 Tei  len Schwefel werden bei Kochtemperatur  20 Teile     Dinitrodibenzodiazapyren    (herge  stellt durch Nitrieren des     4,5,9,10-Dibenzo-          3,8-diazapyrens    in konzentrierter Schwefel  säure mit 2     Mol.    100%iger Salpetersäure)  eingetragen. Bei einer Kochtemperatur von  etwa<B>118'</B> C wird die Reaktionsmischung einige  Zeit unter     Rückflusskühlung    gekocht und    dann die Schmelze eingetrocknet.

   Der     Trok-          kenrückstand    wird in einem     Backofen-etwa     4 Stunden auf 280 bis 800   C erhitzt. Die  fertige Schmelze wird mit Salzwasser von  <B>10'</B>     Be.    verrührt     und    der Farbstoff durch  Absaugen, Waschen und Trocknen als  schwarzes     Pulver    gewonnen.



      Additional patent to main patent No. 217769. 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 dinitrodibenzodiazapyren (prepared by nitrating 4,5,9,10-dibenzo-3,8-diazapyrene in concentrated sulfuric acid with 2 mol. 100% nitric acid ) treated with a sulphurous agent.



  The dye obtained in this way is a black powder and colors the vegetable fibers from the sulfur-sodium bath in brownish olive tones.



       Example: 20 parts of dinitrodibenzodiazapyren (produced by nitrating 4,5,9,10-dibenzo- 3,8-diazapyrene in concentrated sulfuric acid with 2 mol. 100% nitric acid) entered. At a boiling temperature of about 118 ° C., the reaction mixture is refluxed for some time and then the melt is dried.

   The dry residue is heated to 280 to 800 ° C. in an oven for about 4 hours. The finished melt is mixed with salt water of <B> 10 '</B> Be. stirred and the dye obtained as a black powder by suction, washing and drying.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Schwe felfarbstoffes, dadurch gekennzeichnet, dass man Dinitrodibenzodiazapyren (hergestellt durch Nitrieren des 4,5,9,10-dibenzo-3,8-di- azapyrens in konzentrierter Schwefelsäure mit 2 Mol. 100%iger Salpetersäure) mit einem schwefelnden Mittel behandelt, Der so erhaltene Farbstoff ist ein schwar zes Pulver und färbt die pflanzliche Faser aus dem Schwefelnatriumbad in bräunlich oliven Tönen. PATENT CLAIM: Process for the production of a sulfur dye, characterized in that dinitrodibenzodiazapyren (produced by nitrating 4,5,9,10-dibenzo-3,8-di-azapyrene in concentrated sulfuric acid with 2 mol treated with a sulphurizing agent, the dye obtained in this way is a black powder and colors the vegetable fibers from the sulphurous sodium bath in brownish olive tones.
CH220661D 1939-10-07 1940-09-16 Process for the production of a sulfur dye. CH220661A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE220661X 1939-10-07
CH217769T 1943-03-02

Publications (1)

Publication Number Publication Date
CH220661A true CH220661A (en) 1942-04-15

Family

ID=25726064

Family Applications (1)

Application Number Title Priority Date Filing Date
CH220661D CH220661A (en) 1939-10-07 1940-09-16 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH220661A (en)

Similar Documents

Publication Publication Date Title
CH220661A (en) Process for the production of a sulfur dye.
DE745336C (en) Process for the production of sulfur dyes
DE517846C (en) Process for the production of brown Kuepen dyes of the anthraquinone series
DE651249C (en) Process for the production of Kuepen dyes
CH153717A (en) Process for the preparation of a vat dye.
CH235709A (en) Process for the production of a sulfur dye.
DE964977C (en) Process for the production of cobalt-containing dyes of the o, o&#39;-dioxyazomethine series
CH235710A (en) Process for the production of a sulfur dye.
CH220664A (en) Process for the production of a sulfur dye.
CH146001A (en) Process for the preparation of an acidic wool dye.
CH231648A (en) Process for the production of a sulfur dye.
CH147707A (en) Process for the preparation of a derivative of dibenzpyrenquinone.
CH188790A (en) Process for the production of an indigoid dye.
CH262960A (en) Process for the preparation of a monoazo dye.
CH257038A (en) Process for the preparation of a nitro dye.
CH234040A (en) Process for the production of a sulfur dye.
CH234039A (en) Process for the production of a sulfur dye.
CH195329A (en) Process for the production of a vat dye of the anthraquinone series.
CH315238A (en) Process for the preparation of a chromium-containing monoazo dye
CH257040A (en) Process for the preparation of a nitro dye.
CH212581A (en) Process for the production of a sulfur dye.
CH153720A (en) Process for the preparation of a vat dye.
CH295304A (en) Process for the production of a sulfur dye.
CH251802A (en) Process for the production of a vat dye.
CH210535A (en) Process for the production of a sulfur dye.