Lifting of brushes towards the edges
Web cleaning is performed by two Sword Brushes wiping from above and a further two wiping from below. The linear brushes are lifted slightly at the periphery of the web and touch the surface again only after having just passed the edge. Thus the edges will not be folded or damaged and the brushes will flatten the web towards the edges. Each pair of brushes wipes across the surface in the opposite direction thereby ensuring that the entire width of the web is cleaned effectively.