PRINTING PRESSURE JUDGING METHOD, RELIEF PRINTING MACHINE, PRESS PLATE OF RELIEF PRINTING, AND MANUFACTURING METHOD OF PRESS PLATE FOR PLATE CYLINDER OF RELIEF PRINTING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a printing pressure judging method capable of easily and surely confirming the optimal printing pressure condition to a base material in a nip portion formed between a plate cylinder and an impression cylinder by a simple method, a relief printing machine, a press plate of relief printing, and to provide a manufacturing method of the press plate for a plate cylinder of the relief printing machine.

SOLUTION: The relief printing machine has the plate cylinder 16 transferring ink to the base material W and the impression cylinder 18 arranged so as to pressedly contact with the plate cylinder 16. Elastic plate picture line sections 17a with convex shapes for transferring the sticking ink to the base material W are arranged in the press plate 17 of the plate cylinder 16 so as to print the predetermined image to the base material W. An excessive printing pressure detecting section 17b is further arranged below the plate picture line sections 17a in the press plate 17.

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