CH116287A - Process for the preparation of a vat dye. - Google Patents
Process for the preparation of a vat dye.Info
- Publication number
- CH116287A CH116287A CH116287DA CH116287A CH 116287 A CH116287 A CH 116287A CH 116287D A CH116287D A CH 116287DA CH 116287 A CH116287 A CH 116287A
- Authority
- CH
- Switzerland
- Prior art keywords
- blue
- preparation
- vat
- dye
- vat dye
- 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
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/62—Cyclic imides or amidines of peri-dicarboxylic acids of the anthracene, benzanthrene, or perylene series
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 113920. Verfahren zur Darstellung eines güpenfarbstoffes. Gegenstand dieses Zusatzpatentes ist ein Verfahren zur Darstellung eines Küpenfa,rb- stoffes aus dem Kondensationsprodukt aus Mo- nochlorperylentetrakarbonsäureanhydrid mit o phenylendiamin und Phenol.
Das Verfahren wird beispielsweise fol gendermassen ausgeführt: 10 Teile des violetten Kondensations produktes aus Monochlorperylentetrakarbon- säureanhydrid (wie es aus Perylentetrakar- bonsäureanhydrid durch Chlorieren bis zur Monoahlorstufe, beispielsweise in Chlorsulfon, säure, erhalten werden kann) und o-Phe- nylendiamin werden mit etwa 70 Teilen Phenol und 7 Teilen Kaliumkarbonat acht bis zehn Stunden unter Rühren zum Sieden erhitzt.
Die Aufarbeitung der Schmelze kann .so erfolgen, dass man nach dem Abkühlen mit Alkohol verdünnt, absaugt, mit Alkohol und dann mit Wasser wäscht und trocknet.
Der in trockenem, pulverförmigem Zu stande schwarzviolette Farbstoff ist in Al- kalien und Säuren unlöslich. In konzen trierter Schwefelsäure löst er sich blaugrün, in organischen Lösungsmitteln violett bis blau mit braunroter Fluoreszenz. Die Hydro- sulfitküpe ist blau. Auf Baumwolle erhält man ein echtes, rötliches Blau.
Additional patent to main patent no. 113920. Process for the preparation of a high quality dye. The subject of this additional patent is a process for the preparation of a vat substance from the condensation product of monochloroperylenetetracarboxylic acid anhydride with phenylenediamine and phenol.
The process is carried out, for example, as follows: 10 parts of the violet condensation product from monochloroperylenetetracarboxylic acid anhydride (as can be obtained from perylenetetracarboxylic acid anhydride by chlorination up to the monoahlor stage, for example in chlorosulfonic acid) and o-phenylenediamine with about 70 parts of phenol and 7 parts of potassium carbonate heated to the boil for eight to ten hours with stirring.
The melt can be worked up in such a way that after cooling it is diluted with alcohol, filtered off with suction, washed with alcohol and then with water and dried.
The black-violet dye when dry, in powder form, is insoluble in alkalis and acids. In concentrated sulfuric acid it dissolves blue-green, in organic solvents purple to blue with brown-red fluorescence. The hydrosulfite vat is blue. On cotton you get a real, reddish blue.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH116287T | 1925-01-26 | ||
CH113920T | 1925-01-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH116287A true CH116287A (en) | 1926-08-16 |
Family
ID=25708250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH116287D CH116287A (en) | 1925-01-26 | 1925-01-26 | Process for the preparation of a vat dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH116287A (en) |
-
1925
- 1925-01-26 CH CH116287D patent/CH116287A/en unknown
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