A paper machine (or paper-making machine) is an industrial machine which is used in the pulp and paper industryto create paper in large quantities at high speed. Modern paper-making machines are based on the principles of the Fourdrinier Machine, which uses a moving woven mesh to create a continuous paper web by filtering out the fibres held in a paper stock and producing a continuously moving wet mat of fibre. This is dried in the machine to produce a strong paper web. The same process is used to produce paperboard on a paperboard machine.