Lithographic substrates

Details Lithographic substrates Lithographic substrates

1980-08-15

1982-04-13

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Composite

Of metal

156153, 156665, 204 33, 204 58, 204140, 427307, 427309, 427435, 427444, 428469, 428908, 430278, 430302, B32B 1504, B05D 312, G03C 194

Patent

active

043248411

ABSTRACT:
A method for the production of aluminum substrates useful in the production of lithographic printing plates which comprises mechanically graining the surface of an aluminum sheet, subsequently finely graining the mechanically grained sheet in a saturated solution of an aluminum salt of a mineral acid to which up to 10% of a mineral acid has been added, with discretional electrolysis, and then optionally anodizing the sheet.

REFERENCES:
patent: 2209712 (1940-07-01), Brennan
patent: 3072546 (1963-01-01), Wruck
patent: 3073765 (1963-01-01), Adams
patent: 3755116 (1973-08-01), Terai et al.
patent: 4086114 (1978-04-01), Karof
patent: 4126483 (1978-11-01), Donakowski et al.
patent: 4152158 (1979-05-01), Chu
patent: 4201836 (1980-05-01), Huang
patent: 4242417 (1980-12-01), Huang

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