Novel Developments In The Area Of Printing Press Simulation

PRESSIM, the latest version of the VTT/(GRA) offset process simulator has been evaluated both theoretically and in relation to some empirical results. Special attention is paid to the zonal time constants in the inking system. Interesting phenomena in process behavior predicted by the simulator has been verified in pilot scale printing trials. The ink residence time seems to be strongly dependent on the relative ink consumption on the paper. Simulations also show the differences in responses upwards and downwards. When taking the Distribution effects into account, a more precise comprehension of the press dynamics is attained, which is also demonstrated by simulation results. PRINTSIM is also discussed. The idea of PRINTSIM is to use a press simulator connected with a modern control system to help the printers to get familiar with the newest press operating environments. also demonstrated by simulation results. PRINTSIM is also discussed. The idea of PRINTSIM is to use a press simulator connected with a modern control system to help the printers to get familiar with the newest press operating environments.