CH122929A - Process for the preparation of a new dye. - Google Patents
Process for the preparation of a new dye.Info
- Publication number
- CH122929A CH122929A CH122929DA CH122929A CH 122929 A CH122929 A CH 122929A CH 122929D A CH122929D A CH 122929DA CH 122929 A CH122929 A CH 122929A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- new dye
- cold
- brown
- Prior art date
Links
- 239000000835 fiber Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 240000007817 Olea europaea Species 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 239000000975 dye Substances 0.000 description 6
- JPOQYGXPWJDBLY-UHFFFAOYSA-N 2,4-dichloro-3-methyl-1,5-dinitrobenzene Chemical compound CC1=C(Cl)C([N+]([O-])=O)=CC([N+]([O-])=O)=C1Cl JPOQYGXPWJDBLY-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines neuen Farbstoffes. Es wurde gefunden, dass man einen in Wasser löslichen Farbstoff erhält, der vor zugsweise die tierische Faser in braunen, licht- und walkechten Tönen anfärbt, wenn man 1 Molekül 2.6-Dihalogen-3.5-dinitro- toluol mit 2 Molekülen 2'-3Iethyl-4-amino- diphenylamiii-2-sulfosäare kondensiert.
Beispiel: 25,1 Gewichtsteile 2.6-Dichlor-3.5-di- nitrotoluol werden mit 500 Teilen Wasser, in dem 30 Gewichtsteile calcinierte Soda gelöst sind, und mit 55,6 Gewichtsteilen 2'-Methyl-4 - aminodiphenylamin - 2 - sulfosäure vereinigt. Nach Zugabe von 1/2 Gewichts teilen Kupfersulfat wird 20 Stunden gekocht.
Darin wird die entstandene, tief rotbraun gefärbte Lösung filtriert und der Farbstoff ausgesalzen. Dem Farbstoff kommt folgendes Formelbild zu
EMI0001.0017
Das Natronsalz stellt ein braunes Kristall pulver dar; welches sich in kalter konzen trierter Schwefelsäure gelbgrün löst. Durch Erwärmen schlägt die Farbe der Lösung über oliv nach violett um. In kaltem Alkohol ist der Farbstoff schwer löslich, leicht löslich dagegen in Wasser. Auf der Wollfaser er zeugt er braune 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 brown, lightfast and whale-fast shades if 1 molecule of 2,6-dihalo-3,5-dinitro toluene with 2 molecules of 2'-3-ethyl 4-aminodiphenylamiii-2-sulfosäare condensed.
Example: 25.1 parts by weight of 2,6-dichloro-3,5-dinitrotoluene are combined with 500 parts of water in which 30 parts by weight of calcined soda are dissolved and with 55.6 parts by weight of 2'-methyl-4-aminodiphenylamine-2-sulfonic acid. After adding 1/2 part by weight of copper sulfate, it is boiled for 20 hours.
The resulting, deep red-brown solution is filtered and the dye is salted out. The following formula applies to the dye
EMI0001.0017
The sodium salt is a brown crystal powder; which dissolves yellow-green in cold, concentrated sulfuric acid. The color of the solution changes from olive to purple when heated. The dye is sparingly soluble in cold alcohol, but easily soluble in water. On the wool fiber it produces real brown tones.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE122929X | 1925-05-22 | ||
| CH120527T | 1926-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH122929A true CH122929A (en) | 1927-10-17 |
Family
ID=25709491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH122929D CH122929A (en) | 1925-05-22 | 1926-05-19 | Process for the preparation of a new dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH122929A (en) |
-
1926
- 1926-05-19 CH CH122929D patent/CH122929A/en unknown
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