发明名称 METHOD FOR FORMING WEB FROM AEROSUSPENSION OF FIBROUS MATERIAL
摘要 A process for forming a web by aerodynamic method comprises feeding an aerosuspension onto a moving forming wire positioned at an inclination angle .alpha. relative to the aerosuspension flow and removing an air component of the above aerosuspension by means of a suction device located on a backside of the wire, with the incline angle .alpha. being selected by the equation arcctg(Vw/Vf + ~~) < .alpha. < arcctg(Vw/Vf - ~~), where: Vw - velocit y of forming wire; Vf - air filtration rate through a layer of formed web and wir e provided by a suction device at a steady stationary airflow from the aerosuspension into the suction device. As a result, a possible shear of the formed web caused by the aerodynamic pressure of aerosuspension flow is prevented, which permits production of paper having a high degree of uniformity.
申请公布号 CA2350129(A1) 申请公布日期 2000.05.18
申请号 CA19992350129 申请日期 1999.10.25
申请人 PRAGMATIC VISION, INC. 发明人 DROBOSYUK, VIKTOR MIKHAILOVICH
分类号 D21F1/00;B27N3/00;D21F1/02;D21F9/00;D21H27/00;(IPC1-7):D21F9/00 主分类号 D21F1/00
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