EP 1232859 B1 20031126 - On-press exposure and on-press processing of a lithographic material
Title (en)
On-press exposure and on-press processing of a lithographic material
Title (de)
Lithographische Druckplatte mit auf der Druckpresse stattfindender Beschichtung und Entwicklung
Title (fr)
Revêtement et développement sur presse d'une plaque lithographique
Publication
Application
Priority
- EP 02100005 A 20020111
- EP 01000017 A 20010216
Abstract (en)
[origin: EP1232859A1] A method of lithographic printing is disclosed which comprises the steps of : (i) unwinding a web of an imaging material from a supply spool, the imaging material comprising (1) a flexible lithographic base having a hydrophilic surface and (2) an image-recording layer which is removable in a single-fluid ink or can be rendered removable in a single-fluid ink by exposure to heat or light; (ii) wrapping the imaging material around a cylinder of a printing press; (iii) image-wise exposing the image-recording layer to heat or light; (iv) processing the image-recording layer by supplying single-fluid ink, thereby obtaining a printing master; (v) printing by supplying single-fluid ink to the printing master which is mounted on a plate cylinder of the printing press; (vi) removing the printing master from the plate cylinder, preferably by winding up on an uptake spool. Since the image-recording layer can be processed by single-fluid ink, the imaging material is suitable for on-press processing in printing presses wherein no fountain solution is supplied to the plate. The method allows a rapid, fully automatic plate change with reduced press down time.
IPC 1-7
IPC 8 full level
CPC (source: EP)
B41C 1/1008 (2013.01); B41C 1/1075 (2013.01); B41C 2210/02 (2013.01); B41C 2210/04 (2013.01); B41C 2210/08 (2013.01); B41C 2210/22 (2013.01); B41C 2210/24 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 02100005 A 20020111