Printing plates

Details Printing plates Printing plates

1978-04-12

1979-10-30

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

20412995, C25F 304

Patent

active

041727720

ABSTRACT:
Aluminium or aluminium alloy is electrolytically grained using alternating current and an aqueous electrolyte comprising specified amounts of hydrochloric acid and a monocarboxylic acid containing from 1 to 4 carbon atoms, preferably acetic acid. The grained aluminium or alloy may be coated with a light sensitive layer to form a light sensitive plate for use in the production of lithographic printing plates by photomechanical techniques.

REFERENCES:
patent: 2421316 (1947-05-01), Carson
patent: 3963594 (1976-06-01), Brasko
patent: 4052275 (1977-10-01), Gumbinner
patent: 4087341 (1978-05-01), Takahashi

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