发明名称 Fibrous web processing device for processing fibrous web, e.g. board, has processing zone length defined by disposition/adjustment of belt's guiding roll and/or counter-roll design, and has specified contact pressure
摘要 Fibrous web processing device comprises belt (2), guiding roll(s) (3), and counter-roll(s) (5). The belt extends around the guiding roll(s). The belt and the counter-roll(s) establish a web processing zone between them. The processing zone is defined by disposition/adjustment of the belt's guiding roll and/or by the design of the counter-rolls. A contact pressure applied to the web in the processing zone is 0.01-200 MPa. Fibrous web processing device comprises belt, guiding roll(s), and counter-roll(s). The belt extends around the guiding roll(s). The counter-roll(s) is disposed outside the belt to provide a contact area with the belt. The belt and the counter-roll(s) establish a web processing zone between them. The web processing zone allows a web to be processed to pass through it. The processing zone is defined by disposition/adjustment of the belt's guiding roll and/or by the design of the counter-rolls. A contact pressure applied to the web in the processing zone is 0.01-200 MPa. Independent claims are included for: (1) making release paper, (coated) board product, safety paper, and newsprint comprising passing a paper web from press section of a paper machine through calendering process(es) using the inventive device; (2) making mechanical pulp containing coated paper and (un)coated chemical-pulp base fine paper comprising passing the paper web from the press section of paper machine through pre-calendering process(es) upstream of a coating stating and/or through the final calendering process(es) downstream of the coating station using the inventive device; and (3) a calender for making safety paper from a fibrous web comprising calendering surface(s) with impressions complementary to areas intended for surface of fibrous web and with shape designs.
申请公布号 FI20021673(A) 申请公布日期 2004.03.21
申请号 FI20020001673 申请日期 2002.09.20
申请人 METSO PAPER, INC., 发明人 VILJANMAA,MIKA
分类号 D21H;(IPC1-7):D21H 主分类号 D21H
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