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专利名称：Method of producing aluminum support for
printing plate
发明人：Akio Uesugi,Tsutomu Kakei申请号：US07/846778申请日：19920309公开号：US05174869A公开日：19921229
摘要：A method of producing an aluminum support for a printing plate by
electrochemical graining. The aluminum support is soaked in an acid electrolytic liquid ofnitric acid or hydrochloric acid in preferred ranges. An alternating current including at.sub.F positive period and a t.sub.R negative period is applied between the aluminumsupport and an opposite electrode, with current reach peak levels in the positive periodt.sub.F and the negative period t.sub.R being reached within the initial range of 0.1-20% ofeither period.
申请人：FUJI PHOTO FILM CO., LTD.
代理机构：Sughrue, Mion, Zinn, Macpeak & Seas
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