CH88562A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH88562A CH88562A CH88562DA CH88562A CH 88562 A CH88562 A CH 88562A CH 88562D A CH88562D A CH 88562DA CH 88562 A CH88562 A CH 88562A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- azo dye
- acid
- wool
- sulfonic acid
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 3
- 238000000034 method Methods 0.000 title claims description 3
- 239000002253 acid Substances 0.000 claims description 4
- 210000002268 wool Anatomy 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 239000000975 dye Substances 0.000 description 4
- HBZVNWNSRNTWPS-UHFFFAOYSA-N 6-amino-4-hydroxynaphthalene-2-sulfonic acid Chemical compound C1=C(S(O)(=O)=O)C=C(O)C2=CC(N)=CC=C21 HBZVNWNSRNTWPS-UHFFFAOYSA-N 0.000 description 1
- OJGMBLNIHDZDGS-UHFFFAOYSA-N N-Ethylaniline Chemical compound CCNC1=CC=CC=C1 OJGMBLNIHDZDGS-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000003931 anilides Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 238000009963 fulling Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- MLPVBIWIRCKMJV-UHFFFAOYSA-N o-aminoethylbenzene Natural products CCC1=CC=CC=C1N MLPVBIWIRCKMJV-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Landscapes
- Coloring (AREA)
Description
verfahren zur Darstellung eines Azofarbstoffe. Es wurde gefunden, dass durch Vereini gung der Diazoverbindung von 4-Nitro- aniliri-2-siilfäthylanilid mit 2-Amino-8-naph- tol-6-sulfosäure durch sauer erfolgende Kupp lung nach der Aminoseite ein Farbstoff ent steht, welcher Wolle in saurem Bade in blauen Tönen anfärbt, die sich neben einem hervorragendenEgalisierungsvermögen durch gute Walk- und Lichtechtheit auszeichnen.
<I>Beispiel:</I> 321 Gewichtsteile 4-Niti-aiiilin w-sulfätliyl- anilid, welches man zum Beispiel dadurch erhält, dass man das 4-Nitrochlorbenzol-2- sulfocbloi-id mit Monoäthylanilin behandelt und in dem so entstandenen 4-Nitrochlor- benzol-2-sulfäthylanilid das Chloratom mit telst Aninioniak gegen die Aminogruppe austauscht.
(gelbliches Kristallpulver vorn Schmelzpunkte 153 bis 154 ), werden diazo- tiert. Die Diazolösung lässt man alsdann in eine schwach mineralsaure Lösung von 239 Gewichtsteilen 2- Amino-8-naplitol - 6- sulfo- säure ei laufen. fügt: nach beendeter Farb- stoffbildung Kochsalz hinzu, filtriert den Farbstoff ab und arbeitet ihn in üblicher Weise auf.
Er färbt Wolle in saurem Bade in marineblauen Tönen an.
process for the preparation of an azo dyes. It has been found that by combining the diazo compound of 4-nitroaniliri-2-siilfäthylanilid with 2-amino-8-naphthol-6-sulfonic acid by acid coupling on the amino side, a dye is created which wool in acidic bath colors in blue tones, which, in addition to an excellent leveling capacity, are characterized by good fulling and lightfastness.
<I> Example: </I> 321 parts by weight of 4-Niti-aiiilin w-sulfätliyl anilide, which is obtained, for example, by treating the 4-nitrochlorobenzene-2-sulfocbloid with monoethylaniline and in the 4 -Nitrochlor- benzene-2-sulfäthylanilid exchanges the chlorine atom with the amino group by means of aninionia.
(yellowish crystal powder with melting points 153 to 154), are diazo- tated. The diazo solution is then allowed to run into a weak mineral acid solution of 239 parts by weight of 2-amino-8-naplitol-6-sulfonic acid. adds: after the formation of dyestuff, add table salt, filter off the dyestuff and work it up in the usual way.
He dyes wool in an acid bath in navy blue tones.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE88562X | 1916-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH88562A true CH88562A (en) | 1921-03-01 |
Family
ID=5642329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH88562D CH88562A (en) | 1916-02-19 | 1920-06-03 | Process for the preparation of an azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH88562A (en) |
-
1920
- 1920-06-03 CH CH88562D patent/CH88562A/en unknown
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