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

1987-05-19

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25F 304

Patent

active

046665765

ABSTRACT:
Disclosed is a process for the electrochemical roughening of aluminum or aluminum alloys useful for printing plate supports, in which an electrolyte containing chloride ions and ammonium ions, preferably hydrochloric acid and ammonium chloride, respectively, is employed. 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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