PRINTING APPARATUS OF BOTH SIDE FOR WEB

摘要

PURPOSE: A double-sided printing device is provided to reduce printing costs and time since both sides of a target can be simultaneously printed. CONSTITUTION: A double-sided printing device(100) comprises a engraving cylinder(11), a blanket cylinder(12), and a second engraving cylinder(13). The first engraving cylinder and the blanket cylinder are arranged on one side of a target(W). The second engraving cylinder is arranged on the other side of the target. The first engraving cylinder, the blanket cylinder and the second engraving cylinder satisfy a given equation. Ink for first electronic printing is coated on the engraving cylinders. After the ink is transferred from the engraving cylinders to the blanket cylinder, it is transferred to the target to print the target with the electronic ink.