CH153832A - Process for the preparation of a dye of the anthraquinone series. - Google Patents
Process for the preparation of a dye of the anthraquinone series.Info
- Publication number
- CH153832A CH153832A CH153832DA CH153832A CH 153832 A CH153832 A CH 153832A CH 153832D A CH153832D A CH 153832DA CH 153832 A CH153832 A CH 153832A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- anthraquinone series
- preparation
- blue
- proof
- Prior art date
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
- C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
- C09B3/78—Other dyes in which the anthracene nucleus is condensed with one or more carbocyclic rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Farbstoffes der Anthrachinonreihe. Es wurde gefunden, dass man einen neuen Farbstoff erhält, wenn man den nach dem Verfahren der Patentschrift 119986 erhält lichen halogenierten Farbstoff unter Druck mit einer verdünnten methylalkobolischen Lösung von Kaliumhydrosyd erwärmt. Der neue, nur noch schwach halogenhaltige Farb stoff bildet ein dunkles Pulver, das aus rot stichigblauer Küpe die Baumwolle in echten, insbesondere wassertropfechten, grünblauen Tönen färbt.
<I>Beispiel:</I> 56 Teile des nach dem Schweizerpatent Nr. 119986 erhältlichen, in wassertropfechten, blauen Tönen färbenden, chlorierten Dibenz- anthronfarbstoffes werden in ein Gemisch, bestehend aus 25 Teilen 88 o/oigem Kalium hydrogyd und 840 Volumteilen Methylalkohol, eingetragen und das Ganze im Autoklaven während 5 Stunden bei 180-185o gehalten. Nach dem Erkalten wird der Autoklaven- inhalt abgesaugt, der Rückstand mit Wasser alkalifrei gewaschen und getrocknet. Den neuen Farbstoff erhält man in sehr guter Ausbeute als dunkelblaues Pulver.
Process for the preparation of a dye of the anthraquinone series. It has been found that a new dye is obtained if the halogenated dye obtained by the process of Patent 119986 is heated under pressure with a dilute methyl alcoholic solution of potassium hydroside. The new dye, which contains only a few halogens, forms a dark powder that turns the red, pale blue vat into a real green-blue shade, especially water-drop-proof.
<I> Example: </I> 56 parts of the chlorinated dibenzanthrone dye available according to Swiss patent no. 119986 and coloring in water-drip-proof, blue tones are mixed in a mixture consisting of 25 parts of 88% potassium hydrogyd and 840 parts by volume of methyl alcohol , entered and the whole thing in the autoclave for 5 hours at 180-185o. After cooling, the contents of the autoclave are filtered off with suction, the residue is washed alkali-free with water and dried. The new dye is obtained in very good yield as a dark blue powder.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH153832T | 1931-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH153832A true CH153832A (en) | 1932-04-15 |
Family
ID=4408621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH153832D CH153832A (en) | 1931-03-27 | 1931-03-27 | Process for the preparation of a dye of the anthraquinone series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH153832A (en) |
-
1931
- 1931-03-27 CH CH153832D patent/CH153832A/en unknown
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