AT20404B - Process for the production of lightfast colored lacquers. - Google Patents
Process for the production of lightfast colored lacquers.Info
- Publication number
- AT20404B AT20404B AT20404DA AT20404B AT 20404 B AT20404 B AT 20404B AT 20404D A AT20404D A AT 20404DA AT 20404 B AT20404 B AT 20404B
- Authority
- AT
- Austria
- Prior art keywords
- lightfast
- production
- colored lacquers
- colored
- lacquers
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<Desc/Clms Page number 1>
EMI1.1
Die Azofarbstoffe aus den Diazoverbindungen des Amidoazobenzols und der Amido- azobenzolmonosulfosa. ure und Naphtolsnlfosäuren liefern nur Farblacke von geringer Lichtechtheit. Es wurde nun die überraschende Beobachtung gemacht, dass man mit Hilfe der entsprechenden Farbstoffe aus Amidoazobenzoldisulfosäure sehr lichtechte Farblacke herstellen kann.
Beispiel.
() Teile des in üblicher Weise durch Kuppeln der Diazoverbindung der Amidoazobenzoldisulfosäure mit 2-Naphtol-3-6-disulfosäure dargestellten Farbstoffes werden in 500 Teilen
EMI1.2
schlag wird abfiltriert, ausgewaschen und getrocknet und der Lack in der üblicben Weise fertig gemacht. Derselbe hat eine blaustichig rote Nuance,
In analoger Weise verfährt man bei Verwendung anderer als der oben erwähnten Azofarbstoffe. So liefern z. B. die entsprechenden Farbstoffe aus 2-Naphtol-6-8-disulfo-
EMI1.3
2-Naphtol-3-6-8-trisulfosäureeinblasutichigesRot.
Selbstverständlich kann man an Stelle des im Beispiel beschriebenen Verfahrens
EMI1.4
anwenden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
EMI1.1
The azo dyes from the diazo compounds of amidoazobenzene and amidoazobenzolmonosulfosa. Acids and naphtholefoic acids only provide colored lacquers with poor lightfastness. The surprising observation has now been made that very lightfast colored lakes can be produced from amidoazobenzene disulfonic acid with the aid of the corresponding dyes.
Example.
() Parts of the dye prepared in the usual way by coupling the diazo compound of amidoazobenzenesulfonic acid with 2-naphthol-3-6-disulfonic acid are divided into 500 parts
EMI1.2
Impact is filtered off, washed out and dried and the paint finished in the usual way. It has a bluish red shade,
An analogous procedure is followed when using azo dyes other than those mentioned above. So deliver z. B. the corresponding dyes from 2-naphthol-6-8-disulfo-
EMI1.3
2-Naphtol-3-6-8-trisulfonic acid injection, blue red.
Of course, instead of the method described in the example
EMI1.4
apply.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1903154533D DE154533C (en) | 1903-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT20404B true AT20404B (en) | 1905-06-10 |
Family
ID=5676376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT20404D AT20404B (en) | 1903-05-30 | 1904-06-25 | Process for the production of lightfast colored lacquers. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT20404B (en) |
-
1904
- 1904-06-25 AT AT20404D patent/AT20404B/en active
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