EP 1551642 B1 20071010 - METHOD OF MAKING A LITHOGRAPHIC PRINTING PLATE PRECURSOR
Title (en)
METHOD OF MAKING A LITHOGRAPHIC PRINTING PLATE PRECURSOR
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES LITHOGRAPHISCHEN DRUCKPLATTENVORLÄUFERS
Title (fr)
PROCEDE DE FABRICATION D'UN PRECURSEUR DE PLAQUE D'IMPRESSION LITHOGRAPHIQUE
Publication
Application
Priority
- EP 03753595 A 20030912
- EP 0350623 W 20030912
- EP 02102415 A 20021004
- US 42029602 P 20021022
Abstract (en)
[origin: WO2004030925A1] A method of making a heat-sensitive lithographic printing plate precursor is disclosed which comprises the steps of (i) providing a web of a lithographic support having a hydrophilic surface; (ii) applying on the hydrophilic surface of the web a coating comprising a phenolic resin; (iii) drying the coating; (iv) a heating step wherein the web temperature is maintained above the glass transition temperature of the phenolic resin Tg during a period of between 0.1 and 60 seconds; (v) a cooling step wherein the web temperature is reduced at an average cooling rate which is higher than if the web would be kept under ambient conditions but not higher than 30°C/s; (vi) winding the precursor on a core or cutting the precursor into sheets. The heating and the cooling step provide a significant improvement of the aging behavior of the precursor. A stable sensitivity is obtained shortly after coating.
IPC 8 full level
B41N 3/00 (2006.01)
CPC (source: EP)
B41N 3/00 (2013.01); B41N 3/036 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 2004030925 A1 20040415; AU 2003271763 A1 20040423; CN 100439120 C 20081203; CN 1688451 A 20051026; DE 60316826 D1 20071122; DE 60316826 T2 20080717; EP 1551642 A1 20050713; EP 1551642 B1 20071010; JP 2006501507 A 20060112; JP 4338641 B2 20091007
DOCDB simple family (application)
EP 0350623 W 20030912; AU 2003271763 A 20030912; CN 03823712 A 20030912; DE 60316826 T 20030912; EP 03753595 A 20030912; JP 2004540808 A 20030912