| 发明名称 |
Relief printing plate - with prevention of offset by providing non printing surfaces with half tone screens |
| 摘要 |
<p>Flat or arcuate relief printing plate has the non-printing area disposed at a lower level and provided with half-tone screens to prevent offset. Half-tone screens have an array of sharp pts. which are ink repellent.</p> |
| 申请公布号 |
DE2048000(B2) |
申请公布日期 |
1972.08.31 |
| 申请号 |
DE19702048000 |
申请日期 |
1970.09.30 |
| 申请人 |
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发明人 |
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| 分类号 |
B41N3/00;(IPC1-7):41C3/02 |
主分类号 |
B41N3/00 |
| 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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