EP 0986486 A1 20000322 - METHOD OF MAKING LITHOGRAPHIC PRINTING PLATES
Title (en)
METHOD OF MAKING LITHOGRAPHIC PRINTING PLATES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON FLACHDRUCKPLATTEN
Title (fr)
PROCEDE DE FABRICATION DE PLANCHES D'IMPRESSION LITHOGRAPHIQUES
Publication
Application
Priority
- EP 9803483 W 19980603
- GB 9711381 A 19970603
Abstract (en)
[origin: GB2325891A] A method for preparing a lithographic printing plate which involves providing a plate precursor comprising a grained and anodised aluminium substrate coated with a metallic layer, preferably a silver layer, deposited by means of an electroless deposition process, and imagewise exposing the precursor by means of a high intensity laser beam, to remove of the metallic layer in the exposed areas. The method provides press ready plates showing high image quality, good press properties and high durability on press, whilst eliminating the requirement for the use of intermediate film and developer chemistry. The silver layer may be deposited by applying colloidal silver to the substrate and then either (i) dipping the treated substrate into a stabilised solution containing a silver salt and a reducing agent or (ii) using the silver salt diffusion transfer process.
IPC 1-7
IPC 8 full level
B41C 1/10 (2006.01); B41N 1/08 (2006.01); G03F 7/00 (2006.01); G03F 7/07 (2006.01)
CPC (source: EP)
B41C 1/1033 (2013.01); B41N 1/086 (2013.01)
Citation (search report)
See references of WO 9855332A1
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
GB 2325891 A 19981209; GB 9811834 D0 19980729; EP 0986486 A1 20000322; GB 9711381 D0 19970730; JP 2002502509 A 20020122; WO 9855332 A1 19981210
DOCDB simple family (application)
GB 9811834 A 19980603; EP 9803483 W 19980603; EP 98937461 A 19980603; GB 9711381 A 19970603; JP 50159299 A 19980603