PRINTING METHOD FOR REGISTRATION OF WATERMARKED PATTERN AND PRINTED PATTERN, PRINTING MACHINE THEREFOR AND PRINTED PRODUCT THEREBY

摘要

PROBLEM TO BE SOLVED: To solve such problems as the inefficiency due to visual check of the position of a printed pattern to a watermarked pattern by a person, a lack of product assurance due to non-application of 100% check and the spoilage due to a slippage of the position of the printed pattern from that of the watermarked pattern. SOLUTION: A register mark 2 of the watermarked pattern and a register mark 3 of the printed pattern are detected on a printing machine 4. A slippage of the printed pattern is determined by computation and the position of paper 1 is corrected automatically. Thus a product is printed without stoppage of the printing machine 4 for registration.