Recently, environmental requirement forces paper making to use more recycled fibers and to save material by decreasing basis weight, which affect forming process and operating speed. Design speed of the paper machine reaches 2000 m/min and 1800 m/min for linerboard. Challenges to the high-speed operation under weaker paper forced to develop new technologies for water removal and web support, which are applied for both paper and board machine. In addition to machine development, stock preparation process and machine automation are also improved dramatically to improve overall production efficiency. Key technology of the latest development is explained in this paper.
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