CH162909A - 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
- CH162909A CH162909A CH162909DA CH162909A CH 162909 A CH162909 A CH 162909A CH 162909D A CH162909D A CH 162909DA CH 162909 A CH162909 A CH 162909A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- water
- insoluble azo
- azo dye
- dye
- Prior art date
Links
- 238000002360 preparation method Methods 0.000 title claims description 5
- 239000000987 azo dye Substances 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- 239000000975 dye Substances 0.000 claims description 5
- CDIDGWDGQGVCIB-UHFFFAOYSA-N 3,5-bis(trifluoromethyl)aniline Chemical compound NC1=CC(C(F)(F)F)=CC(C(F)(F)F)=C1 CDIDGWDGQGVCIB-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
- 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
- 239000012670 alkaline solution 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
- 239000000243 solution 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
verfahren zur Darstellung eines wasserunlöslichen Azofarbsto:ffes: 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-3.5-bistrifluormethyl- benzol mit 2'. 3'- Oxynaphtoyl-1-amino - 2-me- thylbenzol kuppelt. Die Einwirkung der bei den Komponenten 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 sehr guter Licht- und Waschechtheit. <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 Lö sung von 27,7 Gewichtsteilen 2'.3'-Oxynaph- toyl-l-amino-2-methylbenzol, welche mit der zur Bindung der überschüssigen Mineralsäure nötigen Menge Natriumacetat versetzt ist.
Nach Beendigung der Farbstoffbildung wird abfiltriert, gut mit Wasser gewaschen und ge trocknet. Die Darstellung des Farbstoffes kann auch in Gegenwart eines Substrates erfolgen. Wird der Farbstoff auf der Faser erzeugt, so erhält man ein lebhaftes Orange 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 2 '. 3'-Oxynaphtoyl-1-amino-2-methylbenzene couples. The action of the components on one another can also take place in the presence of a substrate.
The dye, which is produced in substance, forms an orange-colored powder and, when produced on the fiber, provides a vivid orange of very good lightfastness and washfastness. <I> Example: </I> To a diazo solution prepared in the usual way from 22.9 parts by weight of 1-amino-3,5-bistrifluoromethylbenzene, a sodium-alkaline solution of 27.7 parts by weight 2'.3 'slowly flows with thorough stirring. -Oxynaph- toyl-1-amino-2-methylbenzene, 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 preparation of the dye can also take place in the presence of a substrate. If the dye is produced on the fiber, a vivid orange of very good lightfastness and washfastness is obtained.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE162909X | 1930-10-10 | ||
| CH155781T | 1931-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH162909A true CH162909A (en) | 1933-07-15 |
Family
ID=25716652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH162909D CH162909A (en) | 1930-10-10 | 1931-10-08 | Process for the preparation of a water-insoluble azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH162909A (en) |
-
1931
- 1931-10-08 CH CH162909D patent/CH162909A/en unknown
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