CH232298A - Process for the production of a vat dye. - Google Patents
Process for the production of a vat dye.Info
- Publication number
- CH232298A CH232298A CH232298DA CH232298A CH 232298 A CH232298 A CH 232298A CH 232298D A CH232298D A CH 232298DA CH 232298 A CH232298 A CH 232298A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- vat
- melt
- production
- 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
- C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
- C09B5/2409—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position not provided for in one of the sub groups C09B5/26 - C09B5/62
- C09B5/2436—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position not provided for in one of the sub groups C09B5/26 - C09B5/62 only nitrogen-containing hetero rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 228649. Verfahren zur Herstellung eines Nüpenfarbstoffes. Gegenstand dieses Zusatzpatentes ist ein Verfahren zur Herstellung eines neuen Küpenfarbstoffes, welches darin besteht, daB
EMI0001.0008
in einer Alkalischmelze erhitzt.
man die durch Kondensation von 4-Brom- 3-methoxy -1.8 - chinoylen-naphtalin und 1 Amino-6-chloranthrachinon erhältliche Ver bindung von der Zusammensetzung:
EMI0001.0014
bezw. deren Isomeres Man kann die Schmelze auch in Gegen wart von Lösungs- oder Verdünnungsmitteln, wie z. B. Äthylalkohol und Äthanola.min. durchführen.
Beispiel: 10 Gewichtsteile der durch Kondensation von 4-Brom-3-methoxy -1.8 - chinoylen-na.pli- talin und 1-Amino-6-chloranthraehinon er hältlichen Verbindung, die in konz. Schwefel säure mit blauvioletter Farbe lösliche violett stichig-braune Nädelchen bilden, werden so lange in einer Schmelze aus 100 Gewichts teilen Kaliumhydroxyd,
90 Volumteilen Äthylalkohol und 10 Volumteilen Äthanol- amin am Rückflusskühler unter Rühren er hitzt, bis eine Probe mit konz. Schwefelsäure nurmehr eine trübolivbraune Lösung ergibt, aus der sich beim Eingiessen in Wasser der Farbstoff in blauen Flocken als Sulfat ab scheidet. Nach etwa 11/z- bis 2stündiger Schmelzdauer gibt man die Schmelze in Was ser.
Die zum Teil noch in Form der Leuko- verbindung vorliegende neue Verbindung
EMI0002.0026
in einer Alkalischmelze erhitzt.
Der neue Farbstoff hat eine olivgrüne Farbe. Er löst sich in konz. Schwefelsäure mit schmützig-violetter Farbe. Beim Eingie ssen der Lösung in Wasser fällt das Sulfat wird durch Einleiten von Luft zum Farb stoff oxydiert. Er wird mit heissem Wasser neutral gewaschen, wobei entstandene Ne benprodukte mit rotbrauner Farbe in Lösung gehen. Zur vollständigen Entfernung der letzteren extrahiert. man die noch feuchte Paste mit Alkohol.
Der neue Farbstoff hat eine olivgrüne Farbe. Er löst sich in konz. Schwefelsäure mit schmutzig-violetter Farbe. Beim Eingie ssen der Lösung in Wasser fällt das Sulfat des Farbstoffes in kobaltblauen Flocken aus. Die Küpe des Farbstoffes ist trübviolett. Pflanzliche Fasern werden aus der Küpe in griinoliven Tönen von sehr guter Echtheit zefärbt.
Additional patent to main patent no. 228649. Process for the production of a pebble dye. The subject of this additional patent is a process for the production of a new vat dye, which consists in that
EMI0001.0008
heated in an alkali melt.
the compound obtained by the condensation of 4-bromo-3-methoxy -1.8-quinoylen-naphthalene and 1 amino-6-chloroanthraquinone has the following composition:
EMI0001.0014
respectively the isomer of which you can the melt in the presence of solvents or diluents, such as. B. ethyl alcohol and ethanol min. carry out.
Example: 10 parts by weight of the compound obtainable by condensation of 4-bromo-3-methoxy -1.8-quinoylen-na.plitalin and 1-amino-6-chloranthraehinone, which is available in conc. Sulphuric acid with a blue-violet color form soluble violet-brown needles, are so long in a melt of 100 parts by weight of potassium hydroxide,
90 parts by volume of ethyl alcohol and 10 parts by volume of ethanolamine on the reflux condenser with stirring until a sample with conc. Sulfuric acid only results in a cloudy olive-brown solution, from which, when poured into water, the dye separates in blue flakes as sulfate. After about 11/2 to 2 hours of melting time, the melt is poured into water.
The new compound still partly in the form of the leuco compound
EMI0002.0026
heated in an alkali melt.
The new dye is olive green in color. It dissolves in conc. Sulfuric acid with a dirty purple color. When the solution is poured into water, the sulfate falls and is oxidized to the dye by the introduction of air. It is washed neutral with hot water, resulting by-products going into solution with a red-brown color. Extracted to completely remove the latter. the still moist paste with alcohol.
The new dye is olive green in color. It dissolves in conc. Sulfuric acid with a dirty purple color. When the solution is poured into water, the sulfate of the dye precipitates in cobalt blue flakes. The vat of the dye is cloudy purple. Vegetable fibers are dyed from the vat in green-olive tones of very good fastness.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE232298X | 1941-08-06 | ||
| CH228649T | 1942-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH232298A true CH232298A (en) | 1944-05-15 |
Family
ID=25727236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH232298D CH232298A (en) | 1941-08-06 | 1942-07-21 | Process for the production of a vat dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH232298A (en) |
-
1942
- 1942-07-21 CH CH232298D patent/CH232298A/en unknown
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