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

1988-05-25

1989-06-20

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25F 304

Patent

active

048407135

ABSTRACT:
A process is disclosed for the electrochemical roughening of aluminum for use in printing plate supports, which is carried out by means of an electrolyte containing sulfate ions and aluminum chloride; preference is given to sulfuric acid and aluminum chloride. Printing plate supports roughened by the process according to the present invention show a particularly uniform, pit-free and overall roughening structure.

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Din 4768 B1. 1, Oct. 1970, pp. 1-4.
Dowell, "The Alternating Current Etching of Aluminum Lithographic Sheet," Transactions of the Institute of Metal Finishing, 1979, vol. 57, pp. 138-144.

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