CH110876A - Process for the production of a new dye. - Google Patents
Process for the production of a new dye.Info
- Publication number
- CH110876A CH110876A CH110876DA CH110876A CH 110876 A CH110876 A CH 110876A CH 110876D A CH110876D A CH 110876DA CH 110876 A CH110876 A CH 110876A
- Authority
- CH
- Switzerland
- Prior art keywords
- parts
- new dye
- dye
- production
- water
- 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
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/14—Monoazo compounds
- C09B45/16—Monoazo compounds containing chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines neuen Farbstoffes. Es wurde gefunden, dass man einen neuen Farbstoff erhält, wenn man die 3-Oxyriaph- t.halin-1,8-dikaribonsäure mit dianotierter 4-Me- tliyl-2-aniino-l-pheriol-6-sirlfosäure kuppelt und den so erhaltenen Farbstoff mit Alkali chrotnit behandelt. Der neue Farbstoff' bildet ein schwärzliches Pulver, löst sich in Wasser unter Zusatz von Natronlauge mit rotvioletter Farbe und erzeugt im Chromdruck auf Baum wolle sehr echte violette Töne.
<I>Beispiel:</I> 25 Teile 4-A2ethyl-2-ainino-l-phenol-6- sulfosäure werden wie üblich dianotiert und in eine Lösung von<B>21,6</B> Teilen 3-Oxynaph- tlialin-1,8. dikar bonsäureanhy drid, * 8 Teilen Natronlauge und 40 Teilen Soda in 500 Teilen Wasser eingetragen. Man rührt, bis die Diazo- verbindung verschwunden ist. Hierauf salzt man mit Kochsalz aus und filtriert den aus= geschiedenen Farbstoff.
25,6 Teile dieses Farbstoffes werden in eine kochende Lösung, enthaltend 8,5 Teile Cr20s, 10.0 Teile Wasser, 28 Teile Ätzkali und 10 Teile Glyzerin, eingetragen und längere Zeit gekocht. Nach dem Verdünnen mit zirka 200 Teilen Wasser wird filtriert und aus dem Filtrat der neue Farbstoff durch Neutralisieren und Aussalzen isoliert.
Process for the production of a new dye. It has been found that a new dye is obtained if the 3-oxyriaph-t.halin-1,8-dicaribonic acid is coupled with dianotated 4-methyl-2-aniino-1-pheriol-6-sirlfos acid and the like obtained dye treated with alkali chrotnit. The new 'dye' forms a blackish powder, dissolves in water with the addition of caustic soda with a red-violet color and creates very real violet tones when printed with chrome on cotton.
<I> Example: </I> 25 parts of 4-A2ethyl-2-ainino-1-phenol-6-sulfonic acid are dianotized as usual and poured into a solution of <B> 21.6 </B> parts of 3-oxynaph- tlialin-1.8. dikar bonsäureanhy drid, * 8 parts of sodium hydroxide solution and 40 parts of soda in 500 parts of water. Stir until the diazo compound has disappeared. It is then salted out with common salt and the dye which has separated out is filtered off.
25.6 parts of this dye are added to a boiling solution containing 8.5 parts of Cr20s, 10.0 parts of water, 28 parts of caustic potash and 10 parts of glycerine, and the mixture is boiled for a long time. After dilution with about 200 parts of water, the mixture is filtered and the new dye is isolated from the filtrate by neutralization and salting out.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH110876T | 1923-12-28 | ||
CH110287T | 1923-12-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH110876A true CH110876A (en) | 1925-07-01 |
Family
ID=25707667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH110876D CH110876A (en) | 1923-12-28 | 1923-12-28 | Process for the production of a new dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH110876A (en) |
-
1923
- 1923-12-28 CH CH110876D patent/CH110876A/en unknown
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