EP 2529944 A2 20121205 - Method for producing lithographic printing plate original plate and method for roughening surface of aluminium support body
Title (en)
Method for producing lithographic printing plate original plate and method for roughening surface of aluminium support body
Title (de)
Verfahren zur Herstellung einer lithografischen Druckplattenoriginalplatte und Verfahren zur Aufrauung der Oberfläche eines Aluminiumträgerkörpers
Title (fr)
Procédé de production d'une plaque originale de plaque d'impression lithographique et procédé de rugosification de la surface d'un corps de support en aluminium
Publication
Application
Priority
- JP 2011070294 A 20110328
- JP 2012049076 A 20120306
Abstract (en)
There is provided a method of producing a lithographic printing plate original plate and a method for roughening a surface of an aluminum support body, wherein pits having a smaller average pit diameter and being uniform in diameter can be dispersedly formed on the surface of the aluminum support body, with a high density. In a method for producing a lithographic printing plate original plate, the method comprising an electrolytic surface-roughening treatment step for an aluminum support body (230), an electrolysis treatment is performed in an acidic solution (210) having a dissolved oxygen concentration of 6.0 mg/l or less in the electrolytic surface-roughening treatment step.
IPC 8 full level
CPC (source: EP US)
B41N 3/034 (2013.01 - EP US); C25D 11/08 (2013.01 - EP US); C25D 11/16 (2013.01 - EP US); C25D 21/18 (2013.01 - EP US); C25F 3/04 (2013.01 - EP US)
Citation (applicant)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 2012247965 A1 20121004; EP 2529944 A2 20121205; EP 2529944 A3 20131225; JP 2012214878 A 20121108
DOCDB simple family (application)
US 201213431346 A 20120327; EP 12161749 A 20120328; JP 2012049076 A 20120306