CH142056A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH142056A CH142056A CH142056DA CH142056A CH 142056 A CH142056 A CH 142056A CH 142056D A CH142056D A CH 142056DA CH 142056 A CH142056 A CH 142056A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- paints
- azo dye
- acid
- dye
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 4
- 239000000987 azo dye Substances 0.000 title claims description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 4
- 239000000975 dye Substances 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- UWGUZZSJFJMODL-UHFFFAOYSA-N ethyl 3-aminonaphthalene-1-carboxylate Chemical compound C1=CC=C2C(C(=O)OCC)=CC(N)=CC2=C1 UWGUZZSJFJMODL-UHFFFAOYSA-N 0.000 claims description 3
- 229960000583 acetic acid Drugs 0.000 claims description 2
- 238000004043 dyeing Methods 0.000 claims description 2
- 239000012362 glacial acetic acid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 239000004753 textile Substances 0.000 claims description 2
- OCISOSJGBCQHHN-UHFFFAOYSA-N 3-hydroxynaphthalene-1-carboxylic acid Chemical compound C1=CC=C2C(C(=O)O)=CC(O)=CC2=C1 OCISOSJGBCQHHN-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung eines Azofarbstofes. Gegenstand dieses Zusatzpatentes ist ein Verfahren zur Darstellung eines Azofar'o- stoffes, welches darin besteht, dass man 2 . 3- Aminonaphtoesäureäthylester diazotiert und mit 2 . 3-Oxynaphtoesäure-5'-chlor-2'-anisidid kuppelt.
Beispiel: Kupplungslösung: 32,75 gr 2 . 3-Oxynaph- toesäure-5'-chlor-2'-anisidid (OCH;---1), 8 gr Natronlauge 100%ig, 100 gr Wasser, ein stellen auf 250 cm'.
2 gr Soda + 200 gr Wasser, 2 gr Tür- kischrotöl.
Diazolösung: 21,5 gr 2. 3-Aminonaphtoe- säureäthylester, 48 gr Salzsäure 20 Be, 50 gr Wasser, 7 gr Natriumnitrit, 18 gr Wasser, einstellen auf 500 cm'.
Die Diazolösung lässt man innerhalb einer halben Stunde bei ungefähr 15 unter Rüh ren zu der Kupplungslösung laufen. Nach beendeter Farbstoffbildung wird schwach kongosauer gemacht und der Farbstoff ab filtriert..
Der erhaltene Farbstoff hat eine schöne rote Nuance und eine gute Farbkraft. Er löst sich in konzentrierter Schwefelsäure blau und in Eisessig sowie Benzol mit roter Farbe. Er eignet sich sowohl zum Färben von Textilien, als auch zur Herstellung von graphischen Farben, Anstriehfarben, Ta petenfarben usw. Er ist ölecht, lackierecht und lichtecht.
Process for the preparation of an azo dye. The subject matter of this additional patent is a process for the preparation of an azo-fiber, which consists in that 2. 3- aminonaphthoic acid ethyl ester and diazotized with 2. 3-oxynaphtoic acid-5'-chloro-2'-anisidide couples.
Example: Coupling solution: 32.75 gr 2. 3-oxynaphthoic acid-5'-chloro-2'-anisidide (OCH; --- 1), 8 g sodium hydroxide 100%, 100 g water, set to 250 cm '.
2 grams of soda + 200 grams of water, 2 grams of Turkish red oil.
Diazo solution: 21.5 g 2. 3-aminonaphthoic acid ethyl ester, 48 g hydrochloric acid 20 Be, 50 g water, 7 g sodium nitrite, 18 g water, adjust to 500 cm '.
The diazo solution is allowed to run to the coupling solution at about 15 minutes with stirring. After the formation of the dye has ended, it is made weakly Congo acidic and the dye is filtered off.
The dye obtained has a beautiful red shade and good color strength. It dissolves blue in concentrated sulfuric acid and red in glacial acetic acid and benzene. It is suitable for dyeing textiles as well as for the production of graphic colors, paints, Ta petenfarben, etc. It is oil, lacquer and lightfast.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE142056X | 1927-10-21 | ||
| CH139184T | 1928-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH142056A true CH142056A (en) | 1930-08-31 |
Family
ID=25713311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH142056D CH142056A (en) | 1927-10-21 | 1928-10-19 | Process for the preparation of an azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH142056A (en) |
-
1928
- 1928-10-19 CH CH142056D patent/CH142056A/en unknown
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