CONTACTING METHOD OF PLATE MAKING MATERIAL AND ORIGINAL IN PLATE MAKING PROCESS

摘要

PURPOSE:To bring the plate making material and original into close contact with each other without any air left and prevent printing blurring by rolling a squeeze roller while lifting part of an original with a lift member added to the squeeze roller right in front of the lift member in the movement direction. CONSTITUTION:The original 5 is placed on the plate making material 7 on a printing table 1 while its periphery is projected from the material 7, and the original 5 is inserted into the gap between the squeeze roller 3 and a bar 4 added thereto to fix the base end part of the original 5 on the printing table 1 with pins 6. The original 5 right in front of the roller 3 is lifted over the top surface of the plate making material 7 and when the roller 3 is rolled and advanced, an air layer S also moves gradually, so that the original 5 contacts the plate making material 7 over the entire surface with the assistance of the suction of a vacuum pump through longitudinal and lateral grooves on the table 1. Therefore, printing blurring is prevented and the operation time in continuous printing operation is shortened.