Nitric acid system for etching magnesium plates

Details Nitric acid system for etching magnesium plates Nitric acid system for etching magnesium plates

1974-02-11

1976-01-27

Powell, William A.

Compositions

Etching or brightening compositions

Inorganic acid containing

156 14, C09K 1306

Patent

active

039351181

ABSTRACT:
A one-step powderless high-speed process for producing photoengraved letter-press printing and pattern plates from magnesium and alloys thereof by etching such plates in a machine that directs against a surface of the plate droplets of an etching liquid comprising an aqueous solution of a strong inorganic acid and adjuvants.

REFERENCES:
patent: 3725158 (1973-04-01), Messerschmidt et al.

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