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Paper and board are made by the same basic process. First, a suitable furnish is prepared and stored in the machine chest. "Furnish" refers to the suspension of fibers, fillers and additives in water that is used to produce the sheet.
Furnish components vary according to the desired sheet properties, and they differ for different paper grades. The furnish is pumped to the paper machine at a controlled consistency and flow rate in order to produce a sheet of the desired basis weight at the current machine speed.
The two steps just described take place in the stock preparation and stock approach systems, which are covered in separate training modules. This module will describe what happens next in the paper or boardmaking process.