EP 1110720 A2 20010627 - Method of making a lithographic printing plate
Title (en)
Method of making a lithographic printing plate
Title (de)
Verfahren zur Herstellung einer lithographischen Druckplatte
Title (fr)
Procédé de préparation d'une plaque lithographique
Publication
Application
Priority
- EP 98200496 A 19980217
- US 4040897 P 19970311
Abstract (en)
A method of making a lithographic printing plate is disclosed which comprises the steps of : providing a positive or negative working heat-sensitive imaging element which comprises on a lithographic base having a hydrophilic surface : (i) a hydrophobic layer which comprises a polymer which is soluble in an aqueous alkaline solution, and (ii) a top layer which is sensitive to IR-radiation; exposing the imaging element with an IR-laser, thereby inducing a decreased or increased capacity of the top layer for being penetrated and/or solubilised by said aqueous alkaline solution; developing the exposed imaging element with said aqueous alkaline solution.
IPC 1-7
IPC 8 full level
CPC (source: EP)
B41C 1/1016 (2013.01); B41C 2201/04 (2013.01); B41C 2210/02 (2013.01); B41C 2210/06 (2013.01); B41C 2210/14 (2013.01); B41C 2210/24 (2013.01); B41C 2210/262 (2013.01)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 1110720 A2 20010627; EP 1110720 A3 20010711; EP 1110720 B1 20051228; DE 29824516 U1 20010426
DOCDB simple family (application)
EP 00204064 A 19980217; DE 29824516 U 19980217