CH150190A - Process for the preparation of a vat dye of the benzanthrone pyrazole anthrone series. - Google Patents
Process for the preparation of a vat dye of the benzanthrone pyrazole anthrone series.Info
- Publication number
- CH150190A CH150190A CH150190DA CH150190A CH 150190 A CH150190 A CH 150190A CH 150190D A CH150190D A CH 150190DA CH 150190 A CH150190 A CH 150190A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- benzanthrone
- blue
- vat dye
- sulfuric acid
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines Irüpenfarbstoffes der Benzanthronpyrazolanthronreihe. Gegenstand dieses Zusatzpatentes ist ein Verfahren zur Darstellung eines Küpenfarb- stoffes der Benzanthronpyrazolanthronreihe, welches dadurch gekennzeichnet ist, dass man 1.
Mol Chlor-benzanthronpyrazolanthron, wie es durch Einwirkung von Chlor auf Benz- anthronpyrazolanthron in Trichlorbenzol bei 135 bis 145 C erhalten werden kann, vio lett löslich in konzentrierter Schwefelsäure, in Gegenwart eines Lösungsmittels mit 1 Mol 1-Aminoanthrachinon durch Erhitzen zur Umsetzung bringt.
Beispiel: 165 Teile Chlor-bei@.zanthronpyrazolan- thron (erhältlich durch Einwirkung von Chlor auf Benzanthronpyrazolanthron in Tri- chlorbenzol bei 135 bis 145 C violett lös lich in konzentrierter Schwefelsäure, Chlor gehalt des Rohproduktes zirka<B>17%)</B> werden mit 67 Teilen 1-Aminoanthrachinon,
200 Tei len trockenem Natriumacetat und 10 Teilen Kupfersalz in<B>8000</B> Teilen Nitrobenzol wäh- rend 7 Stunden unter Rühren zum Kochen erhitzt und nach dem Erkalten in bekannter Weise aufgearbeitet. Das Produkt ist ein blaues Farbstoffpulver, das sich in Schwefel säure mit blaugrauer Farbe löst. Aus einer blauen alkalischen Hydrosulfitküpe werden auf Baumwolle kräftige und klare grün stichige Grautöne erhalten, die vorzüglich; Echtheitseigenschaften aufweisen.
Process for the preparation of a dye of the benzanthrone pyrazole anthrone series. The subject of this additional patent is a process for the preparation of a vat dye of the benzanthrone pyrazole anthrone series, which is characterized in that 1.
Mol of chlorobenzanthronpyrazolanthrone, as it can be obtained by the action of chlorine on benzanthronpyrazolanthrone in trichlorobenzene at 135 to 145 C, violently soluble in concentrated sulfuric acid, in the presence of a solvent with 1 mol of 1-aminoanthraquinone by heating to react.
Example: 165 parts of chlorine with .zanthronpyrazolanthrone (obtainable by the action of chlorine on benzanthronpyrazolanthrone in trichlorobenzene at 135 to 145 C violet soluble in concentrated sulfuric acid, chlorine content of the crude product approx. 17%) </ B > 67 parts of 1-aminoanthraquinone,
200 parts of dry sodium acetate and 10 parts of copper salt in 8000 parts of nitrobenzene are heated to the boil for 7 hours with stirring and then worked up in a known manner after cooling. The product is a blue dye powder that dissolves in sulfuric acid with a blue-gray color. From a blue alkaline hydrosulphite vat, strong and clear green tinged gray tones are obtained on cotton, which are excellent; Have authenticity properties.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE150190X | 1929-02-27 | ||
CH146858T | 1929-11-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH150190A true CH150190A (en) | 1931-10-15 |
Family
ID=25714947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH150190D CH150190A (en) | 1929-02-27 | 1929-11-23 | Process for the preparation of a vat dye of the benzanthrone pyrazole anthrone series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH150190A (en) |
-
1929
- 1929-11-23 CH CH150190D patent/CH150190A/en unknown
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