Process for producing an aluminum support for a lithographic pri

Details Process for producing an aluminum support for a lithographic pri Process for producing an aluminum support for a lithographic pri

1985-10-10

1987-07-07

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

156665, C25F 304

Patent

active

046785515

ABSTRACT:
A process for producing an aluminum support for a lithographic printing plate, comprising chemical graining of an aluminum plate with an etching solution, is disclosed. The etching solution contains a mineral acid and an unsaturated concentration aluminum salt of a mineral acid. The printing plate produced from the support exhibits high printing durability and excellent performance in preventing stains in non-image areas.

REFERENCES:
patent: 4547274 (1985-10-01), Ohashi
patent: 4584067 (1986-04-01), Hutchins

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