CH122927A - Process for the preparation of a new dye. - Google Patents
Process for the preparation of a new dye.Info
- Publication number
- CH122927A CH122927A CH122927DA CH122927A CH 122927 A CH122927 A CH 122927A CH 122927D A CH122927D A CH 122927DA CH 122927 A CH122927 A CH 122927A
- Authority
- CH
- Switzerland
- Prior art keywords
- new dye
- preparation
- yellow color
- dye
- dinitrobenzene
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines neuen Farbstoffes. Es ist gefunden worden, dass man einen in Wasser löslichen Farbstoff erhält, der vorzugsweise die tierische Faser in orange gelben licht- und walkechten Tönen anfärbt, wenn man ein Molekül 1.3-Dihalogen-4.6-di- nitrobenzol mit zwei Molekülen 4'-Methyl-4- amirrodiphenylamin-2-sulfosäure kondensiert.
<I>Beispiel</I> 23,7 Gewichtsteile 1.3-Diehlor-4.6-dinitro- benzol werden in der 15-fachen Menge Wasser, dem etwas Alkohol hinzugefügt ist, suspen- diert. Dann lässt man innerhalb 15 Stunden in diese Suspension eine sodaalkalische Lösung, hergestellt aus 56 Gewichtsteilen 4'-1Vlethyl- 4-aminodiphenylamin-2-sulfosäure in 400 Tei len Wasser und 24 Gewichtsteilen calcinier- tes Soda einlaufen. Es tritt unter Braunfär bung Lösung ein.
Nachdem einige Stunden nacbgekocht worden ist, wird die tief braun gefärbte Lösung heiss filtriert und aus dem Filtrat das Natronsalz des Farbstoffes aus gesalzen. Dem Farbstoff kommt folgendes Formelbild zu
EMI0001.0019
Das Natronsalz des neuen Farbstoffes stellt ein rostbraunes Pulver dar, das sich in konzentrierter Schwefelsäure zuerst hellgelb löst. Die Lösung färbt sich beim Erwärmen olivfarben, dann grün. In Alkohol ist es schwer, in warmem Wasser leicht löslich mit rotgelber Farbe. Auf der Wollfaser erzeugt er feurig orangegelbe echte Töne.
Process for the preparation of a new dye. It has been found that a water-soluble dye is obtained which preferably dyes the animal fibers in orange-yellow light and whale-fast shades if one molecule of 1,3-dihalo-4,6-dinitrobenzene is mixed with two molecules of 4'-methyl- 4- amirrodiphenylamine-2-sulfonic acid condensed.
<I> Example </I> 23.7 parts by weight of 1,3-diehlor-4,6-dinitrobenzene are suspended in 15 times the amount of water to which a little alcohol has been added. A soda-alkaline solution, prepared from 56 parts by weight of 4'-1Vlethyl-4-aminodiphenylamine-2-sulfonic acid in 400 parts of water and 24 parts by weight of calcined soda, is then allowed to run into this suspension over the course of 15 hours. It occurs with a brown discoloration solution.
After boiling for a few hours, the deep brown colored solution is filtered hot and the sodium salt of the dye is salted out of the filtrate. The following formula applies to the dye
EMI0001.0019
The sodium salt of the new dye is a rust-brown powder that first dissolves in concentrated sulfuric acid in a light yellow color. The solution turns olive when heated, then green. It is difficult in alcohol, easily soluble in warm water with a red-yellow color. It creates fiery orange-yellow real tones on the wool fiber.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE122927X | 1925-05-22 | ||
CH120527T | 1926-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH122927A true CH122927A (en) | 1927-10-17 |
Family
ID=25709489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH122927D CH122927A (en) | 1925-05-22 | 1926-05-19 | Process for the preparation of a new dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH122927A (en) |
-
1926
- 1926-05-19 CH CH122927D patent/CH122927A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH122927A (en) | Process for the preparation of a new dye. | |
CH123455A (en) | Process for the preparation of a new dye. | |
DE447015C (en) | Process for the representation of dyes | |
DE477913C (en) | Process for the preparation of water-soluble basic azo dyes | |
CH122931A (en) | Process for the preparation of a new dye. | |
AT102944B (en) | Process for the preparation of chromium compounds of dyes. | |
CH120527A (en) | Process for the preparation of a new dye. | |
CH122929A (en) | Process for the preparation of a new dye. | |
CH122928A (en) | Process for the preparation of a new dye. | |
DE578735C (en) | Process for the preparation of brown dyes | |
CH122930A (en) | Process for the preparation of a new dye. | |
CH129474A (en) | Process for the production of a new azo dye. | |
CH144308A (en) | Process for the preparation of an acidic wool dye. | |
CH147168A (en) | Process for the preparation of a vat dye of the perylene series. | |
CH129479A (en) | Process for the production of a new azo dye. | |
CH123459A (en) | Process for the preparation of a new dye. | |
CH129480A (en) | Process for the production of a new azo dye. | |
CH157527A (en) | Process for the production of a new azo dye. | |
CH128915A (en) | Process for the preparation of the copper compound of a substantive azo dye. | |
CH197482A (en) | Process for the preparation of a polymethine dye. | |
CH125719A (en) | Process for the preparation of an azo dye. | |
CH143602A (en) | Process for the preparation of an acidic wool dye. | |
CH150807A (en) | Process for the preparation of a readily water-soluble dye of the anthraquinone series. | |
CH129482A (en) | Process for the production of a new azo dye. | |
CH122276A (en) | Process for the preparation of a violet vat dye of the 2-thionaphthene-2-indolindigo series. |