DE423878C - Process for the representation of gray to black box dyes - Google Patents

Process for the representation of gray to black box dyes

Info

Publication number
DE423878C
DE423878C DEB114676D DEB0114676D DE423878C DE 423878 C DE423878 C DE 423878C DE B114676 D DEB114676 D DE B114676D DE B0114676 D DEB0114676 D DE B0114676D DE 423878 C DE423878 C DE 423878C
Authority
DE
Germany
Prior art keywords
gray
dyes
representation
black box
parts
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DEB114676D
Other languages
German (de)
Inventor
Dr Emil Kranch
Dr Paul Nawiasky
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB114676D priority Critical patent/DE423878C/en
Application granted granted Critical
Publication of DE423878C publication Critical patent/DE423878C/en
Expired legal-status Critical Current

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
    • C09B49/02—Sulfur dyes from nitro compounds of the benzene, naphthalene or anthracene series

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Darstellung von grauen bis schwarzen Küpenfarbstoffen. Zusatz zum Patent 411693. In dem Hauptpatent 411693 ist ein Verfahren zur Darstellung von grauen bis schwarzen Küpenfarbstoffen beschrieben, darin bestehend, daß man die Nitrierungsprodukte des Dibenzanthrons mit Schwefel behandelt.Process for the representation of gray to black vat dyes. Addendum to patent 411693. In main patent 411693 there is a method of representation described by gray to black vat dyes, consisting in that one treated the nitration products of dibenzanthrone with sulfur.

Es wurde nun gefunden, daß die Herstellung dieser Farbstoffe sich- besonders vorteilhaft gestaltet, wenn man die Schwefelung in Lösungs- oder Suspensionsmitteln vornimmt.It has now been found that the production of these dyes It is particularly advantageous if the sulfurization is carried out in solvents or suspending agents undertakes.

Beispiel i.Example i.

Zoo Teile des unter dem Namen Anthragrün B im Handel befindlichen- Nitrierungsproduktes des Dibenzanthrans werden mit iooo Teilen Trichlorbenzol, 6oo Teilen Schwefel und io Teilen Antimontrisulfid 18 Stunden am Rückflußkühler gekocht. Das Reaktionsgemisch wird heiß abgesaugt und der :Wiederschlag durch Auskochen mit Trichlorbenzol vom Schwefel befreit. Bei der Reaktion entwickeln sich anfänglich nitrose Gase, deren Entfernung vorteilhaft ist. Dies kann hier dadurch erreicht werden, daß man dem Reaktionsgemisch aromatische Basen, z. B. 2o Teile Anilin, zusetzt.Zoo parts of the market under the name Anthragrün B Nitration product of dibenzanthrane with 100 parts of trichlorobenzene, 600 Parts of sulfur and 10 parts of antimony trisulfide are refluxed for 18 hours. The reaction mixture is filtered off with suction while hot and the re-precipitation by boiling with Trichlorobenzene freed from sulfur. In the reaction develop initially nitrous gases, the removal of which is advantageous. This can be achieved here be that the reaction mixture aromatic bases, for. B. 2o parts of aniline added.

Der Farbstoff ist in seinen Eigenschaften dem in dein Hauptpatent beschriebenen sehr ähnlich. Er löst sich in Trichlorbenzol sehr schwer violett bis violettblau mit starker roter Fluoreszenz und färbt Baumwolle aus blauer Küpe mit derselben Farbe an. Bei der Oxydation an der Luft geht diese Färbung je nach der Menge des angewandten Farbstoffes in Grau bis Schwarz über.The properties of the dye are the same as those in your main patent described very similar. It dissolves in trichlorobenzene very difficultly to purple violet-blue with strong red fluorescence and also dyes cotton from a blue vat same color. With the oxidation in the air this color goes depending on the Amount of the applied dye in gray to black over.

Beispiel e.Example e.

io Teile des gemäß dem Patent 402641 gereinigten Nitrodibenzanthrons werden mit 16o Teilen Chlorschwefel und q.o Teilen Schwefel 2o Stunden zum Sieden erhitzt. Hierauf saugt man noch warm ab, befreit den Niederschlag durch Auswaschen mit Benzol von Schwefel und Chlorschwefel und bringt in der üblichen Weise, z. B. durch Umfällen aus Schwefelsäure, in Pastenform. Der Farbstoff ist dem des Beispiels i sehr ähnlich.io parts of the nitrodibenzanthrone purified according to patent 402641 boil with 160 parts of chlorosulphur and q.o parts of sulfur for 20 hours heated. Then it is suctioned off while still warm, and the precipitate is freed by washing out with benzene of sulfur and chlorosulfur and brings in the usual way, z. B. by reprecipitation from sulfuric acid, in paste form. The dye is that of the example i very much like that.

Claims (1)

PATENT-ANSPRUCH: Ausführungsform des Verfahrens des Hauptpatents 411693 zur Darstellung von grauen bis schwarzen Küpenfarbstoffen, darin bestehend, daß man die Schwefeluni der Nitrierungsprodukte des Dibenzanthrons in Gegenwart von Lösungs- oder Suspensionsmitteln vornimmt.PATENT CLAIM: Embodiment of the method of main patent 411693 for the representation of gray to black vat dyes, consisting in that the sulfur uni of the nitration products of dibenzanthrone in the presence of Makes solvents or suspending agents.
DEB114676D 1924-06-29 1924-06-29 Process for the representation of gray to black box dyes Expired DE423878C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB114676D DE423878C (en) 1924-06-29 1924-06-29 Process for the representation of gray to black box dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB114676D DE423878C (en) 1924-06-29 1924-06-29 Process for the representation of gray to black box dyes

Publications (1)

Publication Number Publication Date
DE423878C true DE423878C (en) 1926-01-13

Family

ID=6993820

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB114676D Expired DE423878C (en) 1924-06-29 1924-06-29 Process for the representation of gray to black box dyes

Country Status (1)

Country Link
DE (1) DE423878C (en)

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