Aluminum substrates useful for lithographic printing plates

Details Aluminum substrates useful for lithographic printing plates Aluminum substrates useful for lithographic printing plates

1983-10-31

1984-10-16

Coughenour, Clyde I.

Chemistry: electrical and wave energy

Processes and products

101459, 2041294, B41N 302, C25D 544

Patent

active

044773170

ABSTRACT:
A method for the production of aluminum substrates useful in the production of lithographic printing plates which comprises first mechanically graining at least one surface of an aluminum sheet to obtain a pumice grained surface of the aluminum sheet, and then electrolytically etching said grained surface with alternating current.

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