Coating non-conductive surfaces

Abstract

Abstract 1524717 Printing members CROSFIELD ELECTRONICS Ltd 15 June 1977 [17 June 1976] 51610/75 Heading B6C [Also in Division C7] A printing member, e.g. a copper gravure cylinder is prepared by subjecting a member to pre-etching, spraying with epoxy resin, removing excess resin to leave resin impregnated etch pits, then engraving using a modulated laser or electron or ion beam and thereafter placed in a trough 14 and treated sequentially with a cationic surfactant, e.g. a quaternary ammonium compound, a colloidal palladium, tin chloride containing solution and an accelerator to remove the tin chloride, then electrolessly plated with copper and electroplated with nickel. This results in a hardwearing printing member.

Inventors

No inventors recorded.

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