CH172257A - Process for the preparation of an azine series dye. - Google Patents
Process for the preparation of an azine series dye.Info
- Publication number
- CH172257A CH172257A CH172257DA CH172257A CH 172257 A CH172257 A CH 172257A CH 172257D A CH172257D A CH 172257DA CH 172257 A CH172257 A CH 172257A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- blue
- dyeings
- silk
- Prior art date
Links
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- Coloring (AREA)
Description
Verfahren zur Herstellung eines Farbstoffes der Azinreihe. Gegenstand des vorliegenden Patentes ist die Herstellung eines Farbstoffes der Naphthophenazinreihe. Dran erhält denselben dadurch, dass man auf ein Gemisch aus der 4.4'-Dianiino-3'-methyldiplienylamin-2-sulfori- säure und 1.3-Dianilirioriaphthaliri-8-sulfon- säure in einem Verdünnungsmittel ein Oxyda tionsmittel einwirken lässt.
<I>Beispiel:</I> 390 Gewichtsteile 1. 3-Dianilinonaphthalin- 8-sulfonsäure und 293 Gewichtsteile 4.4'-Di- amirio-3'-methyl-diphenylamin-2-sulfonsäure werden mit 7000 Gewichtsteilen 50 % igen Alkohols und wenig Ammoniak in schwach alkalische Lösung gebracht und durch diese Lösung bei 35-400 C Luft geleitet.
Nach beendeter Farbstoffbildung wird auf 600 C erwärmt, mit 350 Gewichtsteilen Kochsalz versetzt und kalt gerührt. Der Farbstoff wird abgesaugt, mit einer mit Kochsalz gesättigten 50 % igen Spritlösung gewaschen und ge- trocknet. Man erhält ein bronzeglänzendes Kristallpulver, das in Wasser mit blauer, in konzentrierter Schwefelsäure mit grünblauer Farbe löslich ist. Der Farbstoff färbt Wolle und Seide grünstichig blau.
Die Färbungen auf Wolle sind gut wasch-, walk-, seewasser-, alkali- und lichtecht, die Färbungen auf Seide wasch- und wasserecht. Alle Färbun gen haben auch sehr gute Abendfarbe.
Process for the preparation of an azine series dye. The subject of the present patent is the preparation of a dye of the naphthophenazine series. The same is obtained by allowing an oxidizing agent to act on a mixture of 4,4'-dianiino-3'-methyldiplienylamine-2-sulforic acid and 1,3-dianilirioriaphthalenic-8-sulphonic acid in a diluent.
<I> Example: </I> 390 parts by weight of 1,3-dianilinonaphthalene-8-sulfonic acid and 293 parts by weight of 4,4'-di-amirio-3'-methyl-diphenylamine-2-sulfonic acid are mixed with 7000 parts by weight of 50% alcohol and little Ammonia was brought into a weakly alkaline solution and air was passed through this solution at 35-400 C.
When the dye has formed, the mixture is heated to 600 ° C., mixed with 350 parts by weight of sodium chloride and stirred while cold. The dye is filtered off with suction, washed with a 50% strength spray solution saturated with sodium chloride and dried. A bronze-shining crystal powder is obtained which is soluble in water with a blue color and in concentrated sulfuric acid with a green-blue color. The dye dyes wool and silk a greenish blue.
The dyeings on wool are washable, milled, seawater, alkali and lightfast, the dyeings on silk are washable and waterfast. All colors also have a very good evening color.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE172257X | 1932-02-03 | ||
CH167513T | 1933-01-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH172257A true CH172257A (en) | 1934-09-30 |
Family
ID=25718425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH172257D CH172257A (en) | 1932-02-03 | 1933-01-25 | Process for the preparation of an azine series dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH172257A (en) |
-
1933
- 1933-01-25 CH CH172257D patent/CH172257A/en unknown
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