CLEANING ROLLS, CYLINDERS AND PRINTING FORMS BY JET OF FROZEN PARTICLES

摘要

An apparatus for cleaning and/or removing images from surfaces, in particula r from roll or cylinder surfaces or printing forms is provided. The cleaning apparatus includes one or more blasting nozzles for discharging water in the form of solid particulate matter able to change to a liquid or gas at ambient temperature and pressure without harmin g the surface to be cleaned onto the surfaces to be cleaned. The discharged solid particulate matter effectively removes dirt particles or ink-carrying polymers. The dislodged material and the waste ice, which may have changed into water droplets (6), is removed from t he surface and taken away.