| 发明名称 |
Three phase graining of aluminum substrates |
| 摘要 |
A method for the production of aluminum substrates useful in the production of lithographic printing plates which comprises simultaneously electrochemically graining both sides of an aluminum sheet in an electrolyte employing three phase alternating current.
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| 申请公布号 |
US4396468(A) |
申请公布日期 |
1983.08.02 |
| 申请号 |
US19810332392 |
申请日期 |
1981.12.21 |
| 申请人 |
AMERICAN HOECHST CORPORATION |
发明人 |
WALLS, JOHN E. |
| 分类号 |
B41N3/00;B41N3/03;C25F3/04;(IPC1-7):C25D11/16;C25D11/18 |
主分类号 |
B41N3/00 |
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