发明名称 |
Method for forming plate characters in a half-tone gravure platemaking process |
摘要 |
A method for forming plate characters in a half-tone gravure platemaking process wherein the laser beam is moved so that it will be irradiated on a light sensitive material for forming a plate character on the light-sensitive material by exposure. The plate character is made with a frame portion and a filling portion. The frame portion is formed with continuous groove-form cells which have a predetermined length and width and dot-form projections are formed in the groove-form cells for preventing ink flow. The filling portion is formed by dot-form cells which have a shadow-portion dot percentage. |
申请公布号 |
US5164285(A) |
申请公布日期 |
1992.11.17 |
申请号 |
US19900589170 |
申请日期 |
1990.09.26 |
申请人 |
THINK LABORATORY CO., LTD. |
发明人 |
TAKAKURA, KOUICHI |
分类号 |
G03F1/00;G03F5/20;G03F7/00;G03F7/20 |
主分类号 |
G03F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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