Global Patent Index - EP 2145772 A3

EP 2145772 A3 20120229 - Method of manufacturing aluminum alloy plate for lithographic printing plate, aluminum alloy plate for lithographic printing plate, lithographic printing plate support and presensitized plate

Title (en)

Method of manufacturing aluminum alloy plate for lithographic printing plate, aluminum alloy plate for lithographic printing plate, lithographic printing plate support and presensitized plate

Title (de)

Verfahren zur Herstellung einer Aluminiumlegierungsplatte für eine lithografische Druckplatte, Aluminiumlegierungsplatte für eine lithografische Druckplatte, lithographische Druckplattenträger und Druckplattenvorläufer

Title (fr)

Procédé de fabrication d'une plaque en alliage d'aluminium pour une plaque d'impression lithographique, plaque en alliage d'aluminium pour plaque d'impression lithographique, plaque d'impression lithographique et plaque présensibilisée

Publication

EP 2145772 A3 20120229 (EN)

Application

EP 09165524 A 20090715

Priority

JP 2008185198 A 20080716

Abstract (en)

[origin: EP2145772A2] A method of manufacturing an aluminum alloy plate for a lithographic printing plate includes a semicontinuous casting step for forming an ingot containing up to 0.15 wt% of iron from an aluminum alloy melt, a scalping step for scalping the ingot formed in the semicontinuous casting step to render the ingot into a plate form, a hot rolling step for rolling the ingot in the plate form following the scalping step to obtain a rolled plate, and a cold rolling step in which the rolled plate following the hot rolling step is subjected to cold rolling at a total draft exceeding 88% to obtain an aluminum alloy plate with a thickness of at least 0.1 mm. A lithographic printing plate having an excellent resistance to spotting is obtained.

IPC 8 full level

B41N 1/08 (2006.01); C22C 1/02 (2006.01); C22C 21/00 (2006.01); C22F 1/00 (2006.01); B41C 1/10 (2006.01); B41N 3/03 (2006.01)

CPC (source: EP)

B41N 1/083 (2013.01); C22B 21/06 (2013.01); C22C 1/026 (2013.01); C22C 21/00 (2013.01); C22F 1/00 (2013.01); C22F 1/04 (2013.01); B41C 1/1008 (2013.01); B41C 1/1016 (2013.01); B41C 2201/02 (2013.01); B41C 2201/04 (2013.01); B41C 2201/10 (2013.01); B41C 2201/12 (2013.01); B41C 2201/14 (2013.01); B41C 2210/04 (2013.01); B41C 2210/08 (2013.01); B41C 2210/20 (2013.01); B41C 2210/22 (2013.01); B41C 2210/24 (2013.01); B41N 3/038 (2013.01)

Citation (search report)

Designated contracting state (EPC)

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 SE SI SK SM TR

DOCDB simple family (publication)

EP 2145772 A2 20100120; EP 2145772 A3 20120229; JP 2010023284 A 20100204; JP 5296434 B2 20130925

DOCDB simple family (application)

EP 09165524 A 20090715; JP 2008185198 A 20080716