AT155466B - Process for the production of water-insoluble azo dyes. - Google Patents
Process for the production of water-insoluble azo dyes.Info
- Publication number
- AT155466B AT155466B AT155466DA AT155466B AT 155466 B AT155466 B AT 155466B AT 155466D A AT155466D A AT 155466DA AT 155466 B AT155466 B AT 155466B
- Authority
- AT
- Austria
- Prior art keywords
- water
- azo dyes
- production
- insoluble azo
- parts
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<Desc/Clms Page number 1>
Verfihreii zur Ilerstellung von wasserunlöslichen Azofarbstoffen.
Es wurde gefunden, dass man sehr wertvolle Pigmentfarbstoffe erhält, wenn man die Diazo- verbindüngen von l-Amino-2-nitro-4-alkoxybenzolen mit Acetessigsäurearyliden von der folgenden Zusammensetzung
EMI1.1
EMI1.2
<Desc/Clms Page number 2>
vorhergehenclen Bespielen beschriebenen Weise. Der erhaltene Farbstoff liefert Aufstriche umbDrucke, die in der Nuance und den Echtheitseigenschaften dem in Beispiel 1 beschriebenen Farbstoff entsprechen.
5. 168 Teile l-Amino-2-nitro-4-methoxybenzol'werden in der üblichen Weise diazotiert und in analoger Weise mit 221 Teilen l-Acetoacetylamino-2-methoxy-5-methylbenzol gekuppelt. Der rotstichig-gelbe Pigmentfarbstoff liefert Aufstriehe und Drucke von guten Echtheitseigensehaften.
EMI2.1
Salzsäure 200 Bé in üblicher Weise diazotiert. Die erhaltene Diazolösung wird zweckmässig bei Gegenwart von 180 Teilen Natriumaeetat mit einer Suspension von 207 Teilen l-Acetoacetylamino-2-methoxy- benzol, die durch Lösen des Arylides in Natronlauge und Wiederausfällen mit Essigsäure bereitet wurde, bei Gegenwart von 105 Teilen Blancfixe 50% ig vereinigt. Der fertige Farbstoff wird abgesaugt, gewaschen und getrocknet.
7.182 Teile l-Amino-2-nitro-4-äthoxybenzol werden in üblicher Weise diazotiert und in analoger Weise mit 207 Teilen l-Acetoacetylamino-2-methoxybenzol bei Gegenwart von beispielsweise 60 Teilen Kaolin gekuppelt. Die Reaktion ist rasch beendet ; der Farbstoff wird abgesaugt, gewaschen und getrocknet.
<Desc / Clms Page number 1>
Process for the production of water-insoluble azo dyes.
It has been found that very valuable pigment dyes are obtained if the diazo compounds of l-amino-2-nitro-4-alkoxybenzenes with acetoacetic acid arylides of the following composition
EMI1.1
EMI1.2
<Desc / Clms Page number 2>
the previous examples. The dye obtained gives spreads and prints which correspond to the dye described in Example 1 in terms of shade and fastness properties.
5. 168 parts of l-amino-2-nitro-4-methoxybenzene are diazotized in the usual way and coupled in an analogous manner with 221 parts of l-acetoacetylamino-2-methoxy-5-methylbenzene. The reddish-yellow pigment dye provides stretches and prints with good fastness properties.
EMI2.1
Hydrochloric acid 200 Bé diazotized in the usual way. The diazo solution obtained is expediently in the presence of 180 parts of sodium acetate with a suspension of 207 parts of 1-acetoacetylamino-2-methoxybenzene, which was prepared by dissolving the arylide in sodium hydroxide solution and reprecipitation with acetic acid, in the presence of 105 parts of 50% Blancfixe united. The finished dye is filtered off with suction, washed and dried.
7.182 parts of l-amino-2-nitro-4-ethoxybenzene are diazotized in the customary manner and coupled in an analogous manner with 207 parts of l-acetoacetylamino-2-methoxybenzene in the presence of, for example, 60 parts of kaolin. The reaction ends quickly; the dye is filtered off with suction, washed and dried.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE155466X | 1936-08-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT155466B true AT155466B (en) | 1939-01-25 |
Family
ID=5677032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT155466D AT155466B (en) | 1936-08-28 | 1937-08-13 | Process for the production of water-insoluble azo dyes. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT155466B (en) |
-
1937
- 1937-08-13 AT AT155466D patent/AT155466B/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT155466B (en) | Process for the production of water-insoluble azo dyes. | |
US2165034A (en) | Disubstituted guanidine salts of metalliferous azo dyes | |
AT149986B (en) | Process for the preparation of water-insoluble monoazo dyes. | |
AT278195B (en) | Process for the preparation of a new, water-soluble disazo dye | |
CH182266A (en) | Process for the preparation of a new disazo dye. | |
DE666479C (en) | Process for the production of azo dyes | |
AT270838B (en) | Process for the preparation of a new, water-insoluble monoazo dye | |
CH200066A (en) | Process for the preparation of an azo dye. | |
CH206369A (en) | Process for the preparation of an azo dye. | |
CH177580A (en) | Process for the preparation of a new disazo dye. | |
CH194363A (en) | Process for the production of a new azo dye. | |
CH186739A (en) | Process for the preparation of an azo dye. | |
CH188205A (en) | Process for the preparation of an azo dye. | |
CH182049A (en) | Process for the preparation of an azo dye. | |
CH199092A (en) | Process for the preparation of an azo dye. | |
CH205815A (en) | Process for the production of a new, metal-containing stain dye. | |
CH206368A (en) | Process for the preparation of an azo dye. | |
CH194093A (en) | Process for the preparation of an azo dye. | |
CH172729A (en) | Process for the production of a new azo dye. | |
CH203620A (en) | Process for the preparation of an azo dye. | |
CH176033A (en) | Process for the preparation of an azo dye. | |
CH182267A (en) | Process for the preparation of a new disazo dye. | |
CH186150A (en) | Process for the preparation of a new monoazo dye. | |
CH279523A (en) | Process for the preparation of an azo dye. | |
CH353477A (en) | Process for the production of copper-containing trisazo dyes |