CH128007A - Process for the production of a vat dye of the pyranthrone series. - Google Patents
Process for the production of a vat dye of the pyranthrone series.Info
- Publication number
- CH128007A CH128007A CH128007DA CH128007A CH 128007 A CH128007 A CH 128007A CH 128007D A CH128007D A CH 128007DA CH 128007 A CH128007 A CH 128007A
- Authority
- CH
- Switzerland
- Prior art keywords
- red
- orange
- production
- color
- 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
- C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
- C09B3/40—Pyranthrones
- C09B3/44—Preparation from starting materials already containing the pyranthrone nucleus
- C09B3/46—Preparation from starting materials already containing the pyranthrone nucleus by halogenation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Coloring (AREA)
- Cosmetics (AREA)
Description
Verfahren zur Herstellung eines Küpenfarbstoffes der Pyranthronreihe. Es wurde gefunden, dass man einen neuen Küpenfarbstoff der Pyranthronreihe erhält, wenn man das Trichlorpyrantliron, das er halten werden kann nach den Angaben des Beispiels<B>3</B> des<B>D.</B> R. P. Nr. 2181#62, mit Phenol in Gegenwart von Alkalikarbonat kondensiert.
Der erhaltene Farbstoff bildet ein orange rotes Pulver, welches Baumwolle aus schar lachroter Küpe in echten, sehr reinen, feu rigen, roten Tönen färbt. Das neue Produkt löst sich mit blauroter Farbe in konzentrier ter Schwefelsäure, in Wasser gegossen schei den aus dieser Lösung orangerote Flocken aus. In siedendem Xylol löst es sich mit gel ber Farbe und schwacher gelbgrüner Fluo reszenz; in siedendem Nitrobenzol orange rot mit schwach gelbgrüner Fluoreszenz; in Anilin mit orangeroter Farbe. <I>Beispiel:</I> <B>100</B> Teile Phenol werden mit<B>5</B> Teilen Natriumkarbonat versetzt und zum Vertrei ben des Wassers aus der Mischung 'kurze Zeit im Sieden erhalten.
Hierauf lässt man ab- kühlen, versetzt mit<B>5</B> Teilen Trielilorpyr- anthron (welches zweckmässig nach Beispiel <B>3</B> des<B>D.</B> R. P. Nr. <B>2,18162</B> hergestellt worden ist) und erhitzt einige Stunden -zum Sieden. Während des Siedeus tritt langsam Farben umschlag von orange nach orangerot ein und der neue Farbstoff scheidet sich aus. Hier auf lässt man abkühlen, versetzt mit 200 Tei len Alkohol, filtriert den ausgesehiedenen Farbstoff ab, wäselit ihn mit heissem Wasser und trocknet ihn.
Process for the production of a vat dye of the pyranthrone series. It has been found that a new vat dye of the pyranthrone series is obtained if the trichloropyrantlirone, which it can be obtained from, is obtained according to the information in Example 3 of the D. RP No. 2181 # 62, condensed with phenol in the presence of alkali carbonate.
The dye obtained forms an orange-red powder which dyes cotton from a sharp, laugh-red vat in real, very pure, fiery red tones. The new product dissolves in concentrated sulfuric acid with a blue-red color; when poured into water, orange-red flakes separate from this solution. It dissolves in boiling xylene with a yellow color and a weak yellow-green fluorescence; in boiling nitrobenzene orange red with pale yellow-green fluorescence; in aniline with an orange-red color. <I> Example: </I> <B> 100 </B> parts of phenol are mixed with <B> 5 </B> parts of sodium carbonate and boiled for a short time to drive the water out of the mixture.
It is then allowed to cool, mixed with <B> 5 </B> parts of Trielilorpyranthron (which is expediently according to example <B> 3 </B> of <B> D. </B> RP No. <B> 2,18162 </B>) and heated to boiling for a few hours. During the boiling process, the color slowly changes from orange to orange-red and the new dye separates out. Here it is allowed to cool, 200 parts of alcohol are added, the dye that has separated out is filtered off, washed with hot water and dried.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH128007T | 1927-04-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH128007A true CH128007A (en) | 1928-10-01 |
Family
ID=4386516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH128007D CH128007A (en) | 1927-04-01 | 1927-04-01 | Process for the production of a vat dye of the pyranthrone series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH128007A (en) |
-
1927
- 1927-04-01 CH CH128007D patent/CH128007A/en unknown
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