Electrolytic graining of aluminum with nitric and oxalic acids

Chemistry: electrical and wave energy – Processes and products

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20412985, 20412995, C25F 304

Patent

active

043747108

ABSTRACT:
Aluminum is electrolytically grained in an aqueous solution of nitric and oxalic acids to provide a surface structure suitable for use as part of a lithographic printing plate. The electrolyte may also optionally contain boric acid and/or aluminum nitrate and/or hydrogen peroxide.

REFERENCES:
patent: 4301229 (1981-11-01), Sakaki et al.

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