Paper machine roller for use as calendar roller and roll rewinding roller, has roller body and flexible covering at extent of roller body, where covering has auxetic material

摘要

The paper machine roller has a roller body (6) and a flexible covering (7) at the extent of the roller body. The covering has an auxetic material. The auxetic material has a filler material. The auxetic material is formed as fibers. The auxetic material is selected from a group of materials, which contains polypropylene, nylon, polytetrafluoroethylene and ultra high molecular weight polyethylene.