CH255098A - Process for the production of a copper-containing azo dye. - Google Patents
Process for the production of a copper-containing azo dye.Info
- Publication number
- CH255098A CH255098A CH255098DA CH255098A CH 255098 A CH255098 A CH 255098A CH 255098D A CH255098D A CH 255098DA CH 255098 A CH255098 A CH 255098A
- Authority
- CH
- Switzerland
- Prior art keywords
- copper
- production
- mol
- dye
- azo dye
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines kupferhaltigen Azofarbstoffes. Es wurde gefunden, dass man einen neuen kupferhaltigen Farbstoff erhält, wenn man den Disazofa.rbstoff, der erhältlich ist durch Vereinigen von 1 Mol tetrazotiertem 4,4'-Di- aniino-3,3'-dimethoxydipheny 1 mit je 1 Mol 2-Oxynaphthalin-6-sulfonsäure und 1 Hol 2- Oxynaphtbalin-7-sulfonsäure,
mit ammonia- kalischen Kupferverbindungen erwärmt..
Der neue kupferhaltige Farbstoff stellt ein dunkles Pulver dar, das sich in Waeser mit violetter Farbe löst und natürliche und regenerierte Zellulose in wassertropfechten, speziell aber in hervorragend lichtechten, violetion Tönen färbt.. Beispiel:
36,9 Teile, entsprechend 1/" Mol, des Farbstoffes, in üblicher Weise hergestellt durch Kuppeln irn. Verhältnis von 1 Mol tetrazotiertem 4,4'-Diamino-3,3'-dimethoxy- diphenyl mit je 1 Mol 2-Oxynaphthalin-6- sulfonsäure und 1 Mol 2-Oxynaphthalin-7- sulfonsäure,
werden mit 75 Volumteilen einer Kupferoxydammoniaklösung, die 1 Mol krist. Kupfersulfat in einem Liter gelöst enthält, während 3 Stunden bei 95 bis 100 behan delt. Der ausgefallene kupferhaltige F'arb- stoff wird wie gewohnt isoliert.
Process for the production of a copper-containing azo dye. It has been found that a new copper-containing dye is obtained if the disazofa dye, which is obtainable by combining 1 mol of tetrazotized 4,4'-di-aniino-3,3'-dimethoxydipheny 1 with 1 mol of 2- Oxynaphthalene-6-sulfonic acid and 1 Hol 2- oxynaphthalene-7-sulfonic acid,
heated with ammoniacal copper compounds.
The new copper-containing dye is a dark powder that dissolves in water with a violet color and colors natural and regenerated cellulose in water-drop-proof, but especially in excellent light-fast, violet tones. Example:
36.9 parts, corresponding to 1/ "mole, of the dye, prepared in the usual way by coupling in a ratio of 1 mole of tetrazotized 4,4'-diamino-3,3'-dimethoxydiphenyl to 1 mole of 2-oxynaphthalene 6- sulfonic acid and 1 mole of 2-oxynaphthalene-7-sulfonic acid,
are with 75 parts by volume of a copper oxide ammonia solution, the 1 mol of crystalline. Contains copper sulfate dissolved in one liter, treated for 3 hours at 95 to 100. The precipitated copper-containing dye is isolated as usual.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH255098T | 1945-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH255098A true CH255098A (en) | 1948-06-15 |
Family
ID=4470937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH255098D CH255098A (en) | 1945-12-21 | 1945-12-21 | Process for the production of a copper-containing azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH255098A (en) |
-
1945
- 1945-12-21 CH CH255098D patent/CH255098A/en unknown
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