Process for the electrochemical roughening of aluminum for use i

Details Process for the electrochemical roughening of aluminum for use i Process for the electrochemical roughening of aluminum for use i

1986-02-04

1987-04-28

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25F 304

Patent

active

046612190

ABSTRACT:
Disclosed is a process for the electrochemical roughening of aluminum or aluminum alloys useful for printing plate supports, in which a nitric acid electrolyte is employed. The nitric acid electrolyte includes at least one compound containing ammonium ions. Also disclosed is a printing plate support, roughened by the above process which possesses a particularly uniform graining structure.

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"The Alternating Current Etching of Aluminum Lithographic Sheet" by A. J. Dowell in Transactions of the Institute of Metal Finishing, 1979, vol. 57, pp. 138-144.

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