1. Wet end
The wet section is made up of two elements:
the headbox where a jet of dough is formed at a controlled and identical speed across the entire width of the sheet;
the sheet-forming unit (flat table, twin-wire machine, former), consisting of one or two continuously rotating wires that receive the jet of pulp from the headbox. The fibers are gradually deposited and form the fibrous mat. The free water contained in the jet drips first by gravity through these cloths, then by vacuum through the various dripping devices described in paragraph 1.2 ...
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Wet end
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"Unit operations. Chemical reaction engineering"
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Economic data
According to the annual Pulp and Paper International survey published in July 2002, world production in 2001 amounted to 179,374,000 tonnes of pulp and 318,147,000 tonnes of paper and board (tables 1 , 2...
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