CH162913A - 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
- CH162913A CH162913A CH162913DA CH162913A CH 162913 A CH162913 A CH 162913A CH 162913D A CH162913D A CH 162913DA CH 162913 A CH162913 A CH 162913A
- Authority
- CH
- Switzerland
- Prior art keywords
- water
- preparation
- insoluble azo
- azo dye
- dye
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 4
- 239000000975 dye Substances 0.000 claims description 5
- XWMVIJUAZAEWIE-UHFFFAOYSA-N 2,5-bis(trifluoromethyl)aniline Chemical compound NC1=CC(C(F)(F)F)=CC=C1C(F)(F)F XWMVIJUAZAEWIE-UHFFFAOYSA-N 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfaluen zur Darstellung eines wasserunlöslichen Azofarbstoffes. Gegenstand des vorliegenden Zusatzpaten tes ist ein Verfahren zur Darstellung eines wasserunlöslichen Azofarbstoffes, welches da durch gekennzeichnet ist, dass man die Diazo- verbindung von 1-Amino-2.5-bistrifluormethyl- benzol mit 2'. 3' - Ogynaphtoylaminobenzol kuppelt. Die Einwirkung der beiden Kompo nenten aufeinander kann auch in Gegenwart eines Substrates erfolgen.
Der in Substanz hergestellte Farbstoff bil det ein orangefarbenes Pulver und liefert, wenn auf der Faser erzeugt, ein lebhaftes Orange von guten Echtheitseigenschaften.
<I>Beispiel:</I> Zu einer in der üblichen Weise aus 22,9 Gewichtsteilen 1-Amino-2.5-bistrifluormethyl- benzol bereiteten Diazolösung fliesst langsam. unter gutem Rühren eine natronalkalische Lö sung von 26,3 Gewichtsteilen 2'.3'-Ogynaph- toylaminobenzol, 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 Dar stellung des Farbstoffes kann auch in Gegen wart eines Substrates erfolgen. Wird der Farbstoff auf der Faser erzeugt, so erhält man ein lebhaftes Orange von guten Echtheits eigenschaften.
Procedure 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-2,5-bistrifluoromethylbenzene is 2 '. 3 '- Ogynaphtoylaminobenzene couples. The action of the two components on one another can also take place in the presence of a substrate.
The dye produced in substance forms an orange-colored powder and, when produced on the fiber, provides a vivid orange with good fastness properties.
<I> Example: </I> A diazo solution prepared in the usual way from 22.9 parts by weight of 1-amino-2,5-bistrifluoromethylbenzene flows slowly. with thorough stirring, an alkaline soda solution of 26.3 parts by weight of 2'.3'-Ogynaph- toylaminobenzol, which is mixed with the amount of sodium acetate necessary to bind the excess mineral acid. When the dye has formed, it is filtered off, washed well with water and dried.
The presentation of the dye can also take place in the presence of a substrate. If the dye is produced on the fiber, a vivid orange with good fastness properties is obtained.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE162913X | 1930-10-10 | ||
| CH155781T | 1931-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH162913A true CH162913A (en) | 1933-07-15 |
Family
ID=25716656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH162913D CH162913A (en) | 1930-10-10 | 1931-10-08 | Process for the preparation of a water-insoluble azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH162913A (en) |
-
1931
- 1931-10-08 CH CH162913D patent/CH162913A/en unknown
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