Abstract: A paper coater includes a frame, an entry guide roll and an exit guide roll both carried by the frame and along a path of travel of a continuous paper sheet. The paper coater includes independently controllable hot wax applicators carried by the frame between the entry and exit guide rolls. Each independently controllable hot wax applicator includes a press roll, an engraved applicator roll opposite the press roll so that the continuous paper sheet is therebetween, and with the engraved applicator roll extending into a hot wax reservoir to pick up hot wax. Each wax applicator includes a doctor blade adjacent the engraved applicator roll to control a thickness of hot wax. At least one selectively operable positioner relatively moves the press and engraved applicator rolls between active and idle positions. The paper coater provides different wax application rates and can be reconfigured relatively quickly between different application rates.

Abstract: A paper coater includes a frame, an entry guide roll and an exit guide roll both carried by the frame and along a path of travel of a continuous paper sheet. The paper coater includes independently controllable hot wax applicators carried by the frame between the entry and exit guide rolls. Each hot wax applicator includes a press roll, an engraved applicator roll opposite the press roll so that the continuous paper sheet is therebetween, and with the engraved applicator roll extending into a hot wax reservoir to pick up hot wax. Each wax applicator includes a doctor blade adjacent the engraved applicator roll to control a thickness of hot wax. At least one selectively operable positioner relatively moves the press and engraved applicator rolls between active and idle positions. The paper coater provides different wax application rates and can be reconfigured relatively quickly between different application rates.