CH187616A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH187616A CH187616A CH187616DA CH187616A CH 187616 A CH187616 A CH 187616A CH 187616D A CH187616D A CH 187616DA CH 187616 A CH187616 A CH 187616A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- preparation
- dye
- light fastness
- methylbenzene
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- BYMSHRYDXXJNNV-UHFFFAOYSA-N 3-amino-n,4-dimethylbenzenesulfonamide Chemical compound CNS(=O)(=O)C1=CC=C(C)C(N)=C1 BYMSHRYDXXJNNV-UHFFFAOYSA-N 0.000 claims description 3
- 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 description 3
- 239000000975 dye Substances 0.000 claims description 3
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 238000004043 dyeing Methods 0.000 claims description 2
- 239000004922 lacquer Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 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
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines Azofarbstoffes. Gegenstand des vorliegenden Zusatz patentes ist ein Verfahren zur Herstellung eines Azofarbstoffes, welches dadurch gekenn zeichnet ist, dass man die Diazoverbindung von 3-Amino-4-methylbenzol-l-sulfonsäure- methylamid mit 2,3-Oxynaphtboesäureamid kuppelt. Die Einwirkung der beiden Kom ponenten aufeinander kann auch in Gegen wart eines Substrates erfolgen.
<I>Beispiel:</I> 10 g 3-Amino-4-methylbenzol-l-sulfon- säuremethylamid werden wie üblich diano tiert. Die mit Natriumacetat auf Kongo neutralität abgestumpfte Diazolösung rührt man in eine Lösung von 9,3g 2,3-Oxynaph- thoesäureamid in verdünnter Natronlauge ein. Der entstehende Farbstoff wird abfiltriert, gut ausgewaschen und getrocknet. Die Ein wirkung der beiden Komponenten aufein ander kann auch in Gegenwart eines Sub strates erfolgen. Der Farbstoff stellt ein rotes Pulver dar.
Er lässt sich in bekannter Weise in rote Farblacke von guter Öl- und Lichtechtheit überführen und liefert vulkanisierechte Kaut schukfärbungen von hoher Lichtechtheit.
Process for the preparation of an azo dye. The subject of the present additional patent is a process for the production of an azo dye, which is characterized in that the diazo compound of 3-amino-4-methylbenzene-1-sulfonic acid methylamide is coupled with 2,3-oxynaphthoic acid amide. The action of the two components on one another can also take place in the presence of a substrate.
<I> Example: </I> 10 g of 3-amino-4-methylbenzene-1-sulfonic acid methylamide are dianoed as usual. The diazo solution, truncated to Congo neutrality with sodium acetate, is stirred into a solution of 9.3 g of 2,3-oxynaphthoic acid amide in dilute sodium hydroxide solution. The resulting dye is filtered off, washed well and dried. The two components can also act on one another in the presence of a substrate. The dye is a red powder.
It can be converted in a known manner into red colored lacquers of good oil and lightfastness and provides vulcanization-fast rubber dyeings of high lightfastness.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE187616X | 1934-05-19 | ||
| CH183688T | 1935-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH187616A true CH187616A (en) | 1936-11-15 |
Family
ID=25720909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH187616D CH187616A (en) | 1934-05-19 | 1935-05-16 | Process for the preparation of an azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH187616A (en) |
-
1935
- 1935-05-16 CH CH187616D patent/CH187616A/en unknown
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