CH186556A - Process for the production of an acidic wool dye of the anthraquinone series. - Google Patents
Process for the production of an acidic wool dye of the anthraquinone series.Info
- Publication number
- CH186556A CH186556A CH186556DA CH186556A CH 186556 A CH186556 A CH 186556A CH 186556D A CH186556D A CH 186556DA CH 186556 A CH186556 A CH 186556A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- production
- anthraquinone series
- acidic
- blue
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines sauren Wollfarbstoffes der Anthraehinonreihe. Es wurde gefunden, dass ein wertvoller saurer Wollfarbstoff erhalten wird, wenn man 1-Amino-4-bromanthrachinon-2-sulfosäure mit 3.4.5-Trichloranilin umsetzt. Die neue Substanz stellt blaue Nadeln dar, die sich in Wasser mit blauer Farbe lösen und Wolle aus saurem Bade blau färben. Der besondere Wert des neuen Farbstoffes liegt in seiner ausserordentlichen Beständigkeit gegen die Einwirkung von Chlor oder chlorabspaltenden Mitteln, wie Chlorkalk. Die Reaktion kann in üblicher Weise, zum Beispiel unter An wendung von Kupfersalzen als Katalysatoren durchgeführt werden.
Der neue Farbstoff ist als 1-Amino-4-(3.4.5-trichlor)-anilido- anthrachinon-2-sulfosäure aufzufassen.
<I>Beispiel:</I> 10 Gewichtsteile 1-Amino-4-bromantbra- chinon-2-sulfosäure werden mit 8 Gewichts teilen 3.4.5-Trichloranilin, 10 Gewichts teilen Natriumbicarbonat und 0,5 Gewichts teilen Kupferchlorür in einem Gemisch aus 100 Gewichtsteilen Wasser und 50 Gewichts teilen Äthylalkohol 8 bis 10 Stunden unter Rückfluss gekocht. Man lässt erkalten und saugt den abgeschiedenen Farbstoff ab.
Der selbe wird zwecks Reinigung in Wasser ge löst und durch Zugabe von Kochsalz ausge- salzen. Er stellt blaue Nadeln dar, die sich in Wasser mit blauer Farbe lösen und Wolle aus saurem Bade in äusserst chlorechten blauen Nuancen anfärben.
Process for the production of an acidic wool dye of the anthraehinone series. It has been found that a valuable acidic wool dye is obtained when 1-amino-4-bromoanthraquinone-2-sulfonic acid is reacted with 3,4,5-trichloroaniline. The new substance is blue needles that dissolve in water with a blue color and dye wool from acid baths blue. The special value of the new dye lies in its extraordinary resistance to the effects of chlorine or chlorine-releasing agents such as chlorinated lime. The reaction can be carried out in a customary manner, for example using copper salts as catalysts.
The new dye is to be understood as 1-amino-4- (3.4.5-trichloro) -anilido-anthraquinone-2-sulfonic acid.
<I> Example: </I> 10 parts by weight of 1-amino-4-bromantbraquinone-2-sulfonic acid are mixed with 8 parts by weight of 3.4.5-trichloroaniline, 10 parts by weight of sodium bicarbonate and 0.5 parts by weight of copper chloride 100 parts by weight of water and 50 parts by weight of ethyl alcohol refluxed for 8 to 10 hours. It is allowed to cool and the deposited dye is filtered off with suction.
The same is dissolved in water for cleaning and salted out by adding common salt. It depicts blue needles that dissolve in water with a blue color and dye wool from an acid bath in extremely chlorine-resistant blue shades.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE186556X | 1934-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH186556A true CH186556A (en) | 1936-09-30 |
Family
ID=5719974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH186556D CH186556A (en) | 1934-09-14 | 1935-08-22 | Process for the production of an acidic wool dye of the anthraquinone series. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH186556A (en) |
-
1935
- 1935-08-22 CH CH186556D patent/CH186556A/en unknown
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