Fluid Movements

According to Foley, the two-roll system is still a presence in low-end flexo applications where printing requirements are not so critical. "One of the benefits of the two-roll system is the ability to cheat on your ink delivery to the printing plate," he explains. "By applying more pressure to the rubber metering roll, you reduce the amount of ink delivered to the printing plate. By reducing the pressure on the rubber metering roll you deliver an increased ink film to the surface of the printing plate. Simply put, the two-roll system has more latitude in its ink delivery."