MODERN APPROACHES IN THE DESIGN OF SHEET-FED OFFSET PRINTING PRESSES

This experimental research was conducted on the printing machines manufactured between 1995 and 2015, owned by CNI CORESI SA, Bucharest and it aimed at a comparative analysis of some constructive solutions of sheet-fed presses parts, the influence of these solutions over the print quality, the productivity level, costs, materials consumption and ergonomics of operation. The time needed for each machine setting was clocked, technological paper loses and ink consumption and working speed for each printing press were measured. We also analysed the way in which the integration into printing press of some operations, initially executed off-line, can shorten production cycles and bring added-value to the printed items. The results of the research have contributed to the optimisation of the production flows in line with the most advantageous use of the available human resources