Wet-treatment of permeable full-width

摘要

DD--74527 A Treatment liquor is applied onto the side of the material facing the deflection rollers over which the material is guided in a zig-zag path. The liquid is carried into the space between the roller and the material by friction and hydrodynamic forces. The layer of liquor pressed through the material is removed from the external side of the material. Specif. a scraper element is flexibly fitted parallel to the deflection roller.