CH190040A - Process for the preparation of a nitro dye. - Google Patents
Process for the preparation of a nitro dye.Info
- Publication number
- CH190040A CH190040A CH190040DA CH190040A CH 190040 A CH190040 A CH 190040A CH 190040D A CH190040D A CH 190040DA CH 190040 A CH190040 A CH 190040A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- nitro dye
- dye
- sulfodiethylamide
- aminodiphenylamine
- Prior art date
Links
- 239000001005 nitro dye Substances 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 4
- HYLOSPCJTPLXSF-UHFFFAOYSA-N 5-amino-2-anilinobenzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC(N)=CC=C1NC1=CC=CC=C1 HYLOSPCJTPLXSF-UHFFFAOYSA-N 0.000 claims description 3
- 239000000975 dye Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000010985 leather Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines Nitrofarbstoffes. Gegenstand des vorliegenden Zusatzpaten tes ist ein Verfahren zur Darstellung eines Nitrofarbstoffes, welches dadurch gekenn zeichnet ist, dass man 1-Chlor-2-nitrobenzol- 4-sulfodiäthylamid mit 4-Aminodiphenyl- amin-2-sulfonsäure kondensiert. <I>Beispiel:
</I> 2,64 Gewichtsteile 4-Aminodiphenylamin- 2-sulfonsäure werden bei 60 C in eine Lösung von 106 Gewichtsteilen calciniertem Natriumcarbonat in etwa der 5fachen Menge Wasser eingetragen. Dazu gibt man dann 293 Gewichtsteile 1-Chlor-2-nitrobenzol-4- sulfodiäthylamid und erhitzt 10 Stunden bei 95 bis<B>100'</B> C. Nach Beendigung der Kon densation, was daran erkennbar ist, dass das Produkt nicht mehr .diazotierbar ist, wird der Nitrofarbstoff mit wenig Chlornatrium abgeschieden.
Er bildet in trockenem Zustand ein in Wasser leicht lösliches, dunkelbraunes Pul- ver, das Wolle, Seide und Leder in sehr gleichmässigen gelbbraunen Tönen färbt, die sich durch gute Echtheitseigenschaften, ins besondere sehr gute Lichtechtheit aus zeichnen.
Process for the preparation of a nitro dye. The subject of the present additional patent is a process for the preparation of a nitro dye, which is characterized in that 1-chloro-2-nitrobenzene-4-sulfodiethylamide is condensed with 4-aminodiphenylamine-2-sulfonic acid. <I> example:
2.64 parts by weight of 4-aminodiphenylamine-2-sulfonic acid are introduced into a solution of 106 parts by weight of calcined sodium carbonate in about 5 times the amount of water at 60.degree. 293 parts by weight of 1-chloro-2-nitrobenzene-4-sulfodiethylamide are then added and the mixture is heated for 10 hours at 95 to 100 ° C. After the condensation has ended, which can be seen from the fact that the product is not is more .diazotizable, the nitro dye is deposited with a little sodium chloride.
In the dry state, it forms a dark brown powder which is easily soluble in water and which dyes wool, silk and leather in very uniform yellow-brown tones which are distinguished by good fastness properties, in particular very good lightfastness.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE190040X | 1934-12-22 | ||
| CH187696T | 1935-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH190040A true CH190040A (en) | 1937-03-31 |
Family
ID=25721570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH190040D CH190040A (en) | 1934-12-22 | 1935-12-18 | Process for the preparation of a nitro dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH190040A (en) |
-
1935
- 1935-12-18 CH CH190040D patent/CH190040A/en unknown
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