Corona treatment apparatus

Abstract

A corona treatment apparatus comprising a conveyor (10) for conveying sheets (18) to be treated along a transport path (16), a number of corona electrodes (20) disposed along the conveyor (10) on a first side of the transport path (16), a ground electrode (22) arranged on an opposite second side of the transport path (16) and opposite to the corona electrodes (20), and a suction box (26) for attracting the sheets (18) to the ground electrode (22) by drawing-in air through perforations of the ground electrode, wherein the ground electrode (22) is stationary and the conveyor (10) has a perforated conveyor belt (12) that runs over the ground electrode (22) and is made of a dielectric material, characterized in that the conveyor belt (12) has perforations that are larger than the perforations in the ground electrode (22).

Dependencies are inferred from the claim text.