EP 0514312 A1 19921119 - Offset printing plate and process for the manufacture thereof.
Title (en)
Offset printing plate and process for the manufacture thereof.
Title (de)
Offsetdruckplatte und Herstellungsverfahren davon.
Title (fr)
Plaque d'impression offset et son procédé de fabrication.
Publication
Application
Priority
ES 9101184 A 19910516
Abstract (en)
The plate, in particular an aluminium plate, is provided with a ceramic coating of sodium and/or potassium silicate, which is 0.5-4 mu m thick and has a roughness value (Ra) of 0,3-0.9 mu m. An additional coating of light sensitive lacquer is applied in a standard manner on this coating. The process according to the invention consists of the electrolytic treatment of the aluminium plate with direct current and in a electrolyte containing sodium and/or potassium silicate.
IPC 1-7
IPC 8 full level
CPC (source: EP)
B41N 3/038 (2013.01)
Citation (search report)
- [X] US 4166777 A 19790904 - CASSON EDWARD A JR [US], et al
- [X] US 3956080 A 19760511 - HRADCOVSKY RUDOLF J, et al
- [X] US 3720164 A 19730313 - CASSON E
- [A] EP 0089510 A1 19830928 - HOECHST CO AMERICAN [US]
- [A] EP 0154201 B1 19870819
- [X] WORLD PATENTS INDEX Week 7317, Derwent Publications Ltd., London, GB; AN 73-24134U
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0514312 A1 19921119; BR 9201855 A 19930105; CA 2068589 A1 19921117; ES 2036127 A1 19930501; ES 2036127 B1 19940201; JP H05193285 A 19930803
DOCDB simple family (application)
EP 92500055 A 19920507; BR 9201855 A 19920515; CA 2068589 A 19920513; ES 9101184 A 19910516; JP 12447592 A 19920518