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That is the so-called wet press section, press section consists mainly of dehydration net, breast roll, the dandy roll, vacuum couch roll, drive roll, guide rolls, water cutter and the breast roll vibration device, etc. composition, then we know that the press section The specific process it? Now I come to you explain. From headbox to begin with it, the pulp flows through lip rotating dewatering online side, the breast roll shaking makes the pulp evenly distributed on the Internet, run again after, the opposite of dehydration network clouds dehydration board, running the water will flow down the dehydration board, again after a dandy roll, the main role is to increase the uniformity of the paper, after the vacuum couch roll again, as the name suggests, the action of vacuum or dehydration, pulp out of reach from the lip vacuum pipette rolls due to dehydration board and the role of vacuum couch roll it off most of the water, and then to the press section. Also in the network section to set the web width of three water cutter, fixed width on both sides, and another to be used when threading activities. From the invention of papermaking has gone through numerous reforms, has finally perfected the modern paper program are major steps pulp, modulation, papermaking, processing, and now it is for papermaking, pulp for paper first step. Now let me explain the main pulp in two ways, when the pulp, generally convert wood into pulp There are three ways of mechanical pulping, chemical pulping processes and semi-chemical pulping method.