CH121500A - Process for the production of a new vat dye. - Google Patents
Process for the production of a new vat dye.Info
- Publication number
- CH121500A CH121500A CH121500DA CH121500A CH 121500 A CH121500 A CH 121500A CH 121500D A CH121500D A CH 121500DA CH 121500 A CH121500 A CH 121500A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- new
- vat dye
- dye
- new vat
- 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
- C09B7/00—Indigoid dyes
- C09B7/06—Indone-thionapthene indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. <B>118233.</B> Verfahren zur HersteUung eines neuen Nüpenfarbstoffes. Es wurde gef unden, dass man einen neuen Küpenfarbstoff erhält, wenn man<B>1.</B> Mol. 4.6- Dimethyl-3-oxythionaphten mit einem Molekül 5.7-Dibromisatin kondensiert.
Der neue Farb stoff bildet ein rotes Pulver, löst sich in kon zentrierter Schwefelsäure mit rotbrauner Farbe und gibt mit Hydrosulfit und Natron lauge eine orange Küpe, aus welcher Baum wolle echt scharlach gefärbt wird.
<I>Beispiel<B>:</B></I> <B>178</B> Teile 4.6-Dimethyl-3-oxythionaphten und<B>305</B> Teile 5.7-Dibromisatin werden in <B>1800</B> Teilen Eisessig suspendiert und dann zum Sieden erhitzt. Die Kondensation ist in kurzer Zeit beendigt. Es wird filtriert, mit Alkohol gewaschen und getrocknet.
Additional patent to main patent no. <B> 118233. </B> Process for the production of a new pimple dye. It was found that a new vat dye is obtained if <B> 1. </B> mol. 4.6-dimethyl-3-oxythionaphthene is condensed with one molecule of 5.7-dibromoisatin.
The new dye forms a red powder, dissolves in concentrated sulfuric acid with a reddish brown color and, with hydrosulfite and sodium hydroxide solution, gives an orange vat from which cotton is dyed really scarlet.
<I>Example<B>:</B> </I> <B> 178 </B> parts of 4,6-dimethyl-3-oxythionaphten and <B> 305 </B> parts of 5.7-dibromoisatin are in <B> 1800 parts of glacial acetic acid suspended and then heated to boiling. The condensation ends in a short time. It is filtered, washed with alcohol and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH121500T | 1925-10-31 | ||
CH118233T | 1926-12-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH121500A true CH121500A (en) | 1927-07-01 |
Family
ID=25708985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH121500D CH121500A (en) | 1925-10-31 | 1925-10-31 | Process for the production of a new vat dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH121500A (en) |
-
1925
- 1925-10-31 CH CH121500D patent/CH121500A/en unknown
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