EP 1543959 B1 20090715 - Heat-sensitive lithographic printing plate precursor.
Title (en)
Heat-sensitive lithographic printing plate precursor.
Title (de)
Wärmeempfindlicher lithographischer Druckplattevorläufer
Title (fr)
Précurseur de plaque d'impression lithographique sensible à la chaleur
Publication
Application
Priority
- EP 04101643 A 20040421
- EP 03104784 A 20031218
Abstract (en)
[origin: EP1543959A2] A heat-sensitive lithographic printing plate precursor is disclosed which comprises a hydrophilic support and an oleophilic coating thereon which comprises an infrared light-to-heat converter, an alkali-soluble binder and a polymeric developer accelerator. The polymeric developer accelerator is preferably a phenolic formaldehyde resin comprising at least 70 mol% of meta-cresol as recurring unit or at least 40 mol % of monohydroxy benzene cresol as recurring unit. The PDA may also be a phenolic resin which comprises at least 5 mol% of a recurring monomeric unit having at least one phenolic hydroxyl group and at least one alkali solubilising group. The polymeric developer accelerator improves the sensitivity while maintaining a good under-exposure latitude and a good developer resistance of the printing plate.
IPC 8 full level
CPC (source: EP)
B41C 1/1008 (2013.01); B41C 1/1016 (2013.01); B41C 2201/02 (2013.01); B41C 2201/04 (2013.01); B41C 2201/14 (2013.01); B41C 2210/02 (2013.01); B41C 2210/06 (2013.01); B41C 2210/22 (2013.01); B41C 2210/24 (2013.01); B41C 2210/262 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 1543959 A2 20050622; EP 1543959 A3 20060111; EP 1543959 B1 20090715
DOCDB simple family (application)
EP 04101643 A 20040421