CH166667A - Process for the preparation of an o-oxyazo dye. - Google Patents
Process for the preparation of an o-oxyazo dye.Info
- Publication number
- CH166667A CH166667A CH166667DA CH166667A CH 166667 A CH166667 A CH 166667A CH 166667D A CH166667D A CH 166667DA CH 166667 A CH166667 A CH 166667A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- oxyazo
- preparation
- parts
- dioxyquinoline
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
\'erfahren zur Herstellung eines o-Ogyazofarbstoffes. Nach dem durch das Hauptpatent ge schützten Verfahren erhält man einen Wolle in Gegenwart von Chrombeizen echt anfär benden Farbstoff, wenn man 4-Chlor-2-diazo- 1-oxybenzol-6-sulfosäLire mit 7.8-Benzo-2.4- dioxychinolin kuppelt.
Wie nun weiter gefunden wurde, erhält man einen Farbstoff mit ganz ähnlichen guten Eigenschaften, wenn man an Stelle des 7.8- Beiizo-2.4-dioxychinolins das 6.7-Benzo-2.4- dioxychinolin wählt, welches gemäss der deut schen Patentsehrift Nr.<B>117167</B> aus Acetyl- 2 . 3 - aminonaphtoesäure dargestellt werden kann.
<I>Beispiel:</I> Eine aus 22,4 Teilen 4-Chlor-2-amino-l- oxybenzol-6-sulfosäure, 6,9 Teilen Natrium- nitrit und 5 Teilen Salzsäure von 120B6 in etwa 500 Teilen Wasser bereitete Diazover- bindung wird zu einer mit Eis versetzten Auf- lösung von 23 Teilen 6.7-Benzo-2.4-dioxy- chiuolin und 20 Teilen Soda in 500 Teilen Wasser gegeben.
Der gebildete Farbstoff wird ausgesalzen und bildet getrocknet ein dunk les Pulver, welches gut löslich ist und auf Wolle nach dem Einbad-Chromverfahren rot violette Töne von guter Wasch- und Walk- echtheit erzeugt.
\ 'experienced in the production of an o-ogyazo dye. According to the process protected by the main patent ge one obtains a wool in the presence of chromium stains really staining dye if 4-chloro-2-diazo-1-oxybenzene-6-sulfosäLire is coupled with 7.8-benzo-2.4-dioxyquinoline.
As has now been found, a dye with very similar good properties is obtained if, instead of 7.8-beiizo-2.4-dioxyquinoline, one chooses 6.7-benzo-2.4-dioxyquinoline, which according to German patent application no. 117167 </B> from acetyl- 2. 3 - aminonaphthoic acid can be represented.
<I> Example: </I> A prepared from 22.4 parts of 4-chloro-2-amino-l-oxybenzene-6-sulfonic acid, 6.9 parts of sodium nitrite and 5 parts of hydrochloric acid of 120B6 in about 500 parts of water Diazo compound is added to a solution, mixed with ice, of 23 parts of 6.7-benzo-2.4-dioxychiuoline and 20 parts of soda in 500 parts of water.
The dyestuff formed is salted out and, when dried, forms a dark powder which is readily soluble and produces red-violet tones of good fastness to washing and flexing on wool using the single-bath chrome process.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE166667X | 1932-04-18 | ||
| CH164201T | 1932-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH166667A true CH166667A (en) | 1934-01-15 |
Family
ID=25717943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH166667D CH166667A (en) | 1932-04-18 | 1932-11-11 | Process for the preparation of an o-oxyazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH166667A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1083835B (en) * | 1956-01-17 | 1960-06-23 | Ruf Buchhaltung Ag | Latching devices for typewriters with pin wheels |
-
1932
- 1932-11-11 CH CH166667D patent/CH166667A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1083835B (en) * | 1956-01-17 | 1960-06-23 | Ruf Buchhaltung Ag | Latching devices for typewriters with pin wheels |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AT123802B (en) | Process for the preparation of water-insoluble azo dyes. | |
| CH166667A (en) | Process for the preparation of an o-oxyazo dye. | |
| CH166668A (en) | Process for the preparation of an o-oxyazo dye. | |
| CH166664A (en) | Process for the preparation of an o-oxyazo dye. | |
| DE650766C (en) | Process for the preparation of monoazo dyes | |
| DE582688C (en) | Process for the preparation of o-oxyazo dyes | |
| DE526208C (en) | Process for the preparation of azo dyes | |
| AT91280B (en) | Process for the representation of substantive azo dyes. | |
| DE698926C (en) | Process for the production of a water-insoluble azo dye on vegetable fibers | |
| CH197281A (en) | Process for the preparation of an o-oxyazo dye. | |
| AT89697B (en) | Process for the production of azo dyes on the fiber. | |
| DE728886C (en) | Process for the preparation of copper complex compounds of substantive azo dyes | |
| CH166666A (en) | Process for the preparation of an o-oxyazo dye. | |
| CH166665A (en) | Process for the preparation of an o-oxyazo dye. | |
| CH164201A (en) | Process for the preparation of an o-oxyazo dye. | |
| CH131503A (en) | Process for the production of a new chromium-containing azo dye. | |
| CH173738A (en) | Process for the preparation of an o-oxyazo dye. | |
| CH197584A (en) | Process for the preparation of a disazo dye. | |
| CH224129A (en) | Process for the preparation of a primary disazo dye. | |
| CH191430A (en) | Process for the preparation of an azo dye. | |
| CH205533A (en) | Process for the preparation of an o-oxyazo dye. | |
| CH176226A (en) | Process for the preparation of an o-oxyazo dye. | |
| CH191429A (en) | Process for the preparation of an azo dye. | |
| CH209082A (en) | Process for the preparation of an o-oxyazo dye. | |
| CH214813A (en) | Process for the preparation of a trisazo dye. |