CH294233A - Process for the preparation of a copper-containing disazo dye. - Google Patents
Process for the preparation of a copper-containing disazo dye.Info
- Publication number
- CH294233A CH294233A CH294233DA CH294233A CH 294233 A CH294233 A CH 294233A CH 294233D A CH294233D A CH 294233DA CH 294233 A CH294233 A CH 294233A
- Authority
- CH
- Switzerland
- Prior art keywords
- copper
- disazo dye
- preparation
- parts
- containing disazo
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
verfahren zur Herstellung eines kupferhaltigen Disazofarbstoffes. Gegenstand vorliegenden Patentes ist ein Verfahren zur Herstellung eines kupferhal tigen Disazofarbstoffes. Das Verfahren ist da durch gekennzeichnet, dass man 1 Mol tetrazo-
EMI0001.0007
kuppelt und den erhaltenen Disazofarbstoff mit kupferabgebenden Mitteln behandelt.
Der erhaltene neue Farbstoff stellt ein dunkles Pulver dar, das sich in Wasser mit blauer Farbe löst, und Cellulosefasern in leb haften blauen Tönen färbt.
EMI0001.0011
zulaufen gelassen und bis zur Beendigung der Kupplung verrührt. Der Disazofarbstoff wird in 2500 Teilen Wasser bei 80-85 gelöst und bei dieser Temperatur 400 Teile einer Kupfer oxydammoniaklösung, die 50 Teile krist. Kup fersulfat und 120 Teile konz. wässrigen Ammo niak enthält., zugefügt.
Es wird 4 bis 5 Stun den auf 80 bis 85 erhitzt und nach Zufügen von weiteren 50 Teilen einer konz. Ammoniak lösung 15 bis 20 Stunden auf 90 bis 95 er- tiertes 4,4'-Diamino-3,3'-dimethoxy-diphenyl in beliebiger Reihenfolge nacheinander mit 1 Mol l.-Oxy-naphthalin-3,8-disulfonsäure und 1-,Nlol der Verbindung <I>Beispiel:
</I> Zu der Zwisehenverbindung aus 24,4 Tei len tetrazotiertem o-Dianisidin und 30,4 Tei len 1-Oxy-naphthalin-3,8-disulfonsäure wird eine ammoniakalische Lösung, enthaltend 43,2 'feile der folgenden Verbindung hitzt. Der gebildete Kupferkomplex wird mit Kochsalz ausgefällt, filtriert und getrocknet. Er stellt. ein dunkles Pulver dar, das sich in Wasser mit blauer Farbe löst und Cellulose- fasern in lebhaften blauen Tönen von sehr guter Wasser- und Lichtechtheit färbt.
process for the production of a copper-containing disazo dye. The present patent is a process for the preparation of a kupferhal term disazo dye. The process is characterized in that 1 mol of tetrazo-
EMI0001.0007
coupled and treated the disazo dye obtained with copper donating agents.
The new dye obtained is a dark powder which dissolves in water with a blue color and dyes cellulose fibers in vivid blue tones.
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allowed to run in and stirred until the coupling is complete. The disazo dye is dissolved in 2500 parts of water at 80-85 and at this temperature 400 parts of a copper oxide ammonia solution containing 50 parts of crystalline. Copper sulfate and 120 parts of conc. aqueous ammonia contains., added.
It is heated for 4 to 5 hours to 80 to 85 and after adding another 50 parts of a conc. Ammonia solution for 15 to 20 hours to 90 to 95 eroded 4,4'-diamino-3,3'-dimethoxy-diphenyl in any order one after the other with 1 mol of l.-oxynaphthalene-3,8-disulfonic acid and 1- , Nlol of the connection <I> Example:
An ammoniacal solution containing 43.2 parts of the following compound is heated to the intermediate compound of 24.4 parts of tetrazotized o-dianisidine and 30.4 parts of 1-oxynaphthalene-3,8-disulphonic acid. The copper complex formed is precipitated with common salt, filtered and dried. Created. a dark powder that dissolves in water with a blue color and dyes cellulose fibers in vivid blue tones of very good water and lightfastness.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH294233T | 1951-02-07 | ||
CH291510T | 1951-02-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH294233A true CH294233A (en) | 1953-10-31 |
Family
ID=25733114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH294233D CH294233A (en) | 1951-02-07 | 1951-02-07 | Process for the preparation of a copper-containing disazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH294233A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5225545A (en) * | 1991-05-15 | 1993-07-06 | Ciba-Geigy Corporation | Disazo dyes containing a 1-hydroxy-3-sulfo-acylaminophenyl-amino-naphthalene coupling component |
-
1951
- 1951-02-07 CH CH294233D patent/CH294233A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5225545A (en) * | 1991-05-15 | 1993-07-06 | Ciba-Geigy Corporation | Disazo dyes containing a 1-hydroxy-3-sulfo-acylaminophenyl-amino-naphthalene coupling component |
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