Corona discharge treatment roller and surface finishing process

A web conveyance roller having a surface with generally down features, many of the down features overlapping to form interconnected channels comprising at least 50% of the surface area of the roller, the depth of the down features being substantially uniform and greater than about 12 microns but less than about 125 microns, and a plurality of spatially separated randomly shaped plateaus between the channels comprising between at least 20% of the surface of the roller, and wherein spacing between nearest adjacent plateaus have a uniform width in said surface.