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专利名称：Substrate for a lithographic printing plate发明人：Theodore J. Crona,Heinz Bichsel,Jurgen
Timm
申请号：US07/1332申请日：19871229公开号：US04802935A公开日：190207
摘要：A substrate for a lithographic printing plate is made of a rolled aluminum alloysheet of following composition: 0.8 to 2.0% Fe, up to 0.8% Si and up to 1.0% Mn, such thatthe sum of the Si and Mn contents lies between 0.3 and 1.3%, up to 0.3% Cu, up to 0.8%Mg, up to 2.0% Zn and 0. 3% each of other constituents in total up to 1.0%, restaluminum. A process for manufacturing such a substrate is such that this composition iscast as a 5 to 12 mm thick strip then fabricated to a 0.03 to 0.6 mm thick rolled sheet.
申请人：SWISS ALUMINIUM LTD.
代理机构：Bachman & LaPointe
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