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Paper Machine Paper Sheet Forming

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In paper making process, paper sheet forming is the important process of pulp formed into wet paper sheet in paper machine wire section, it related to the finished paper quality.

Paper Sheet Forming

The screened pulp of constant consistency to flow into a horizontal wire screen, the water in the pulp drains through the wire, and this drainage is assisted by suction boxes applied under the wire at certain points. At the end of the wire, farthest from the point where the pulp flows on it, there is a suction cough roll over which the matted sheet of fibers from the wire passes. At this point the web of fibers still contains much moisture, so it is passed, supported by wool felts, through other rolls which press more water out of it. Next it passes through other rolls which press more water out of it. Next it passes through the dryer section, polished calender rolls and on to reels where it is wound up.