EP 1524113 A3 20051123 - Method of making a heat-sensitive lithographic printing plate.
Title (en)
Method of making a heat-sensitive lithographic printing plate.
Title (de)
Herstellungsverfahren einer wärmeempfindlichen Flachdruckplatte
Title (fr)
Procédé de fabrication d'une plaque lithographique thermosensible
Publication
Application
Priority
- EP 04104688 A 20040927
- EP 03103828 A 20031016
Abstract (en)
[origin: EP1524113A2] A method of making a lithographic printing plate is disclosed which comprises the steps of (1) providing a lithographic printing plate precursor comprising (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer and (ii) a coating provided thereon which comprises hydrophobic thermoplastic polymer particles; (2) exposing the precursor to IR-light or heat, thereby inducing coalescence of the thermoplastic polymer particles at exposed areas of the coating; (3) applying a hydrophilic protective layer on the coating ; and then, (4) while the precursor is mounted on a print cylinder of a printing press, developing the precursor by supplying an aqueous dampening liquid and/or ink to said precursor while rotating said print cylinder whereby the coating and the hydrophilic protective layer are removed from the support on the non-exposed areas. According to the above method, the hydrophilic protective layer can be applied by coating a solution by means a spray nozzle or a jet nozzle and wherein the applied hydrophilic protective layer improves clean-out in an on-press development.
IPC 1-7
IPC 8 full level
B41C 1/10 (2006.01); B41N 3/03 (2006.01); B41N 3/08 (2006.01)
CPC (source: EP)
B41C 1/1025 (2013.01); B41N 3/036 (2013.01); B41N 3/08 (2013.01); B41C 2201/02 (2013.01); B41C 2210/04 (2013.01); B41C 2210/08 (2013.01); B41C 2210/22 (2013.01); B41C 2210/24 (2013.01)
Citation (search report)
- [X] EP 0816070 A1 19980107 - AGFA GEVAERT NV [BE]
- [X] EP 1092555 A1 20010418 - AGFA GEVAERT NV [BE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1524113 A2 20050420; EP 1524113 A3 20051123; EP 1524113 B1 20100324
DOCDB simple family (application)
EP 04104688 A 20040927