Two-sided simultaneous printing method

摘要

Intaglio printing plate apparatus comprising in combination two intaglio die plates one for attachment to the top platen of a printing press and one for attachment to the lower or bottom platen with the recessed intaglio designs of the two plates, facing each other, that one of the plates which is to be attached to the top platen being formed with passages passing through its thickness to the recessed intaglio design, the other plate being formed with air bleed holes leading from the recessed design to atmosphere.