The part of the paper making process in which the pulp is treated mechanically and sometimes chemically is called the stock preparation department. To be able to produce a good and strong paper from chemical fibres, the fibres must be refined.
In the stock preparation department different types of pulps are mixed, for example long fibre
softwood with short fibre hardwood. To improve the paper properties or to make the paper production less expensive, different kinds of chemicals and fillers are added.
Before the pulp is pumped to the paper machine it must be diluted, cleaned, and maybe deaerated and screened a last time.
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Before the pulp is pumped to the paper machine it must be diluted, cleaned, and maybe deaerated and screened a last time. And this process is the same as for qcs paper machine, although the speed of production works faster.
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