CH246189A - Process for the production of a metallizable polyazo dye. - Google Patents
Process for the production of a metallizable polyazo dye.Info
- Publication number
- CH246189A CH246189A CH246189DA CH246189A CH 246189 A CH246189 A CH 246189A CH 246189D A CH246189D A CH 246189DA CH 246189 A CH246189 A CH 246189A
- Authority
- CH
- Switzerland
- Prior art keywords
- mole
- dye
- production
- brown
- metallizable
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/38—Trisazo dyes ot the type
- C09B35/40—Trisazo dyes ot the type the component K being a dihydroxy or polyhydroxy compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 242845. Verfahren zur Herstellung eines metallisierbaren Polyazofarbstoffes. Das vorliegende Patent betrifft ein Ver fahren zur Herstellung eines braunen Poly- azofarbstoffes und ist dadurch gekennzeich net, dass man 1 Mol Resorcin, 1 Mol der Verbindung,
erhältlich durch Verseifen und Diazotieren des Farbstoffes aus 1 Mol diazo- tierter 1-Amino - 2 - methogybenzol -5 - sulfon- säure und 1 Mol 1-Acetamino-2-ogybenzol und 1 Mol der aus 1 Mol tetrazotiertem 4,
4'- Diaminobenzanilid und 1 Mol Salicylsäure erhältlichen Zwischenverbindung aufeinander einwirken lässt.
<I>Beispiel:</I> 20,3 g 1-Amino-2-methoxy-5=sulfonsäure, werden wie üblich diazotiert und mit einer' Lösung von 15,1 g 1-Acetamino-2-ogybenzol;' 13,3 g 30%iger Natronlauge und Wasser in" Gegenwart von Soda gekuppelt. Der Farb-stoff wird verseift, mit Salzsäure abgeschie den und filtriert. Er besitzt mutmasslich die Formel
EMI0001.0041
Er wird in Wasser und Soda gelöst, mit 7 g Natriumnitrit versetzt und mit Salzsäure an gesäuert.
Nach Beendigung der Diazotierung kuppelt man mit einer Lösung von 11 g Resorcin und Wasser in Gegenwart von Soda. Der Disazofarbstoff wird durch Zusatz von Salzsäure abgeschieden und filtriert. Er wird in Wasser und Soda gelöst und mit der in üblicher Weise hergestellten Zwischenver- bindung aus 22,7 g 4,4'-Diamiuobenzanilid und 13,8 g Salicylsäure gekuppelt. Der Tetrakisazofarbstoff wird in der Wärme mit Kochsalz abgeschieden, filtriert und ge trocknet.
Der neue Farbstoff stellt ein dunkles Pulver dar, das Baumwolle und regenerierte Cellulose in orangebraunen Tönen färbt. Beim Nachbehandeln mit Kupfersulfat wer den die Färbungen rotstickig braun und in der Wasch-, Licht-, Säure- und Alkaliecht- Tieit erheblich verbessert.
<B> Additional patent </B> to main patent no. 242845. Process for the production of a metallizable polyazo dye. The present patent relates to a process for the production of a brown poly azo dye and is characterized in that 1 mole of resorcinol, 1 mole of the compound,
obtainable by saponifying and diazotizing the dye from 1 mole of diazo-tated 1-amino-2-methogybenzene -5-sulfonic acid and 1 mole of 1-acetamino-2-ogybenzene and 1 mole of 4 from 1 mole of tetrazotized
4'-Diaminobenzanilid and 1 mol of salicylic acid available intermediate compound can act on each other.
<I> Example: </I> 20.3 g of 1-amino-2-methoxy-5 = sulfonic acid are diazotized as usual and treated with a 'solution of 15.1 g of 1-acetamino-2-ogybenzene;' 13.3 g of 30% sodium hydroxide solution and water are coupled in the presence of soda. The dye is saponified, separated with hydrochloric acid and filtered. It presumably has the formula
EMI0001.0041
It is dissolved in water and soda, mixed with 7 g of sodium nitrite and acidified with hydrochloric acid.
When the diazotization is complete, coupling is carried out with a solution of 11 g of resorcinol and water in the presence of soda. The disazo dye is deposited by adding hydrochloric acid and filtered. It is dissolved in water and soda and coupled with the intermediate compound prepared in the usual way from 22.7 g of 4,4'-diamiuobenzanilide and 13.8 g of salicylic acid. The tetrakisazo dye is deposited in the warm with common salt, filtered and dried ge.
The new dye is a dark powder that dyes cotton and regenerated cellulose in orange-brown tones. When aftertreating with copper sulfate who the coloring red-sticky brown and in the washing, light, acid and alkali-fast Tieit significantly improved.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH242845T | 1945-04-16 | ||
CH246189T | 1945-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH246189A true CH246189A (en) | 1946-12-15 |
Family
ID=25728765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH246189D CH246189A (en) | 1945-04-16 | 1945-04-16 | Process for the production of a metallizable polyazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH246189A (en) |
-
1945
- 1945-04-16 CH CH246189D patent/CH246189A/en unknown
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