專利名稱：Method of producing planographic printing

plate support

發(fā)明人：Sawada, Hirokazu, c/o Fuji Photo Film Co.,

Ltd.,Kakei, Tsutomu, c/o Fuji Photo Film Co.,Ltd.,Matsuki, Mayasa, c/o Fuji Photo Film Co.,Ltd.,Uesugi, Akio, c/o Fuji Photo Film Co., Ltd.

申請?zhí)枺篍P93112299.8申請日：19930730公開號：EP0581321A3公開日：19940803

專利附圖：

摘要：A method of producing a planographic printing plate support in which afteraluminum is continuously cast directly from molten aluminum into a thin aluminum plate,the aluminum thin plate is subjected to cold rolling, heat treatment and flattening toobtain an aluminum support. The aluminum support is then subjected to surfaceroughening. The components of the aluminum support are ???Fe: 0.4 % - 0.2 %, ???Si:0.20 % - 0.05 %, ???Cu: not larger than 0.02 %, and the Al purity is not smaller than 99.5

%. After continuous casting, Fe in a range of from 20 % to 90 % of the Fe total contentexists in a grain boundary and the rest of Fe exists as a solid solution in grains. In this case,it is preferable that in a section perpendicular to the direction of continuous casting, thegrain size is in a range of from 2 μm to 500 μm.

申請人：FUJI PHOTO FILM CO., LTD.

地址：210 Nakanuma Minami-Ashigara-shi Kanagawa 250-01 JP

國籍：JP

代理機(jī)構(gòu)：Grünecker, Kinkeldey, Stockmair & Schwanh?usser Anwaltssoziet?t

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