Anti-adhesive, high wear resistance coatings for paper industry

Due to the higher usage of post-consumer recycled fiber increases on paper machines the run ability and machine cleanness became a major issue. On one hand the contaminates called stickies can be responsible for sheet brakes, holes in the paper, web picking etc.  On the other hand more sand containing waste paper enhances the impact on roll surfaces in operation.

In this paper the different stickies (micro / macro / primary / secondary) will be explained and the development to avoid stickies and contaminations together with a high wear resistance on rolls in the paper machine will be shown. Therefore a comparison of different materials and technologies regarding surface energy and peel force measurements will be shown. Together with results of a pilot scale blade test rig the results in the market regarding anti stick properties wear resistance and corrosion resistance of the developed layer stack designs will be introduced.