Global Patent Index - EP 1000768 A2

EP 1000768 A2 20000517 - Production of lithographic printing plate support

Title (en)

Production of lithographic printing plate support

Title (de)

Herstellung eines Trägers einer Flachdruckplatte

Title (fr)

Fabrication d'un support pour plaque lithographique

Publication

EP 1000768 A2 (EN)

Application

EP 99203681 A

Priority

GB 9825822 A

Abstract (en)

A process is provided for the manufacture of a support for a lithographic printing plate precursor, the process comprising graining at least one surface of a metallic substrate, applying an anodic layer to at least one grained surface of the substrate, and treating at least one grained and anodised surface of the substrate with an aqueous solution comprising a copolymer of acrylic acid and vinylphosphonic acid whilst applying a constant voltage or constant current. A method is also disclosed for the manufacture of lithographic printing plate precursors which provide plates showing good resistance to abrasion, corrosion, staining and scumming, both on development and on press. Additionally, the plates display excellent coating adhesion in image areas, together with very good exposure latitude and solvent resistance.

IPC 1-7

B41N 3/03

IPC 8 full level

G03F 7/09 (2006.01); B41N 3/03 (2006.01); C25D 11/16 (2006.01); C25D 11/20 (2006.01); G03F 7/00 (2006.01)

CPC (source: EP)

B41N 3/036 (2013.01); B41N 3/038 (2013.01); C25D 11/16 (2013.01); C25D 11/20 (2013.01); B41N 3/03 (2013.01); B41N 3/034 (2013.01)

Designated contracting state (EPC)

DE FR GB IT NL

DOCDB simple family (publication)

EP 1000768 A2 20000517; EP 1000768 A3 20010221; EP 1000768 B1 20040303; DE 69915211 D1 20040408; DE 69915211 T2 20050113; GB 9825822 D0 19990120; JP 2000141938 A 20000523

DOCDB simple family (application)

EP 99203681 A 19991103; DE 69915211 T 19991103; GB 9825822 A 19981116; JP 32119499 A 19991111