Paper machine

Paper machines are massive constructions that are dozens of meters long and produce paper that is several meters wide at high speeds. A paper mill is automated, computerised and loaded with state-of-the-art technology. It is also a major investment, yet its operating principle is simple: the water in the low-consistency slurry is removed while it is spread out in a thin, consistent layer. In order to make sure that the paper produced is of a high and uniform quality, the process is monitored using automated measuring equipment and laboratory tests. In addition to fibres, paper may contain up to 50 per cent fillers and coating and binding agents, which improve its properties. The coating layer on the surface of paper is less than 0.1 millimetres thick.