CH162911A - Process for the preparation of a water-insoluble azo dye. - Google Patents
Process for the preparation of a water-insoluble azo dye.Info
- Publication number
- CH162911A CH162911A CH162911DA CH162911A CH 162911 A CH162911 A CH 162911A CH 162911D A CH162911D A CH 162911DA CH 162911 A CH162911 A CH 162911A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- water
- insoluble azo
- azo dye
- dye
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines wasserunlöslichen Azofarbstoffes. Gegenstand des vorliegenden Zusatzpa tentes ist ein Verfahren zur Darstellung eines wasserunlöslichen Azofarbstoftes, welches da durch gekennzeichnet ist, dass man die Diazo- verbindung von 1-Amino-3.5-bistrifluormethyl- benzol mit 2'.3'-Ogynaphtoyl-2-naphtylamin kuppelt. Die Einwirkung der beiden Kompo nenten aufeinander kann auch in Gegenwart eines Substrates erfolgen.
Der in Substanz hergestellte Farbstoff bildet ein orangefarbenes Pulver und liefert, wenn auf der Faser erzeugt, ein lebhaftes Rotorange von sehr guter Licht- und Wasch echtheit.
<I>Beispiel:</I> Zu einer in der üblichen Weise aus 22,9 Gewichtsteilen 1-Amino-3.5-bistrifluormethyl- benzol bereiteten Diazolösung fliesst langsam unter gutem Rühren eine natronalkalische Lösung von 31,3 Gewichtsteilen 2'.3'-Ogy- naphtoyl-2-naphtylamin, welche mit der zur Bindung der überschüssigen Mineralsäure nötigen Menge Natriumacetat versetzt ist. Nach Beendigung der Farbstoffbildung wird abfiltriert, gut mit Wasser gewaschen und getrocknet.
Die Darstellung des Farbstoffes kann auch in Gegenwart eines Substrates erfolgen. Wird der Farbstoff auf der Faser erzeugt, so erhält man ein lebhaftes Rotorange von sehr guter Licht- und Waschechtheit.
Process for the preparation of a water-insoluble azo dye. The subject of the present additional patent is a process for the preparation of a water-insoluble azo dye, which is characterized in that the diazo compound of 1-amino-3,5-bistrifluoromethylbenzene is coupled with 2'.3'-ogynaphtoyl-2-naphthylamine. The action of the two components on one another can also take place in the presence of a substrate.
The dye, which is produced in substance, forms an orange powder and, when produced on the fiber, provides a vivid red-orange with very good light and wash fastness.
<I> Example: </I> To a diazo solution prepared in the usual way from 22.9 parts by weight of 1-amino-3,5-bistrifluoromethylbenzene, an alkaline sodium solution of 31.3 parts by weight of 2'.3'- slowly flows with thorough stirring. Ogynaphtoyl-2-naphthylamine, to which the amount of sodium acetate necessary to bind the excess mineral acid is added. When the dye has formed, it is filtered off, washed well with water and dried.
The preparation of the dye can also take place in the presence of a substrate. If the dye is produced on the fiber, a vivid red-orange with very good lightfastness and washfastness is obtained.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE162911X | 1930-10-10 | ||
CH155781T | 1931-10-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH162911A true CH162911A (en) | 1933-07-15 |
Family
ID=25716654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH162911D CH162911A (en) | 1930-10-10 | 1931-10-08 | Process for the preparation of a water-insoluble azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH162911A (en) |
-
1931
- 1931-10-08 CH CH162911D patent/CH162911A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH162911A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH162907A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH162910A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH162912A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH159316A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH162908A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH159317A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH162909A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH159318A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH159314A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH159319A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH159321A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH162914A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH159315A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH162913A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH159320A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH175240A (en) | Process for the preparation of an azo dye. | |
CH148979A (en) | Process for the preparation of an azo dye. | |
CH155781A (en) | Process for the preparation of a water-insoluble azo dye. | |
CH148980A (en) | Process for the preparation of an azo dye. | |
CH148981A (en) | Process for the preparation of an azo dye. | |
CH166661A (en) | Process for the preparation of an azo dye. | |
CH136386A (en) | Process for the preparation of a polyazo dye. | |
CH124679A (en) | Process for the preparation of a monoazo dye. | |
CH124678A (en) | Process for the preparation of a monoazo dye. |