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Context: |
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Fiber enters the stock preparation plant as thick stock transfers from on-site pulping operations and/or as market pulp along with whatever additives are used. A small fraction of these solid materials (say 0.05 - 2.0%) is rejected as waste by the screens and cleaners of the stock approach system. At the forming section, only about 50 - 60% of the solids in the headbox flow is retained on the forming fabric. The formed sheet goes forward through the press section (where a small fraction of solids is removed in the expressed white water), then through the dryers and is finally reeled up. |
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