EP 0485958 B1 19950628 - Process for preparing a substrate for a lithographic plate.
Title (en)
Process for preparing a substrate for a lithographic plate.
Title (de)
Verfahren zur Herstellung eines Substrats für eine lithographische Druckplatte.
Title (fr)
Procédé de fabrication d'un substrat pour une plaque lithographique.
Publication
Application
Priority
JP 30641590 A 19901113
Abstract (en)
[origin: EP0485958A1] A process for preparing a substrate for a lithographic plate, which comprises the steps of subjecting at least one surface of an aluminum plate to a surface roughening treatment, anodizing the resulting plate to form at least 2 g/m<2> of an anodized layer, sealing the anodized plate with hot water or water vapor to reduce the surface area of the anodized layer by from 40 to 95 % and subjecting the sealed plate to at least one of a hydrophilizing treatment or a hydrophilic-undercoating treatment. A lithographic plate which comprises the substrate prepared by the process of the present invention has excellent strength of non-image areas, corrosion resistance of non-image areas, reproduction of highlight areas, printing durability, little dye staining of non-image areas and non-image areas having high hydrophilicity. Further, the lithographic plate produces prints having little background contamination.
IPC 1-7
IPC 8 full level
B41N 3/03 (2006.01); C25D 11/18 (2006.01)
CPC (source: EP)
B41N 3/034 (2013.01); C25D 11/18 (2013.01)
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
EP 0485958 A1 19920520; EP 0485958 B1 19950628; DE 69110838 D1 19950803; DE 69110838 T2 19951116; JP 2640564 B2 19970813; JP H04176690 A 19920624
DOCDB simple family (application)
EP 91119284 A 19911112; DE 69110838 T 19911112; JP 30641590 A 19901113