空気巻込みの影響を考慮した紙搬送・巻取り時のロール-紙間におけるトラクション特性(機械要素,潤滑,工作,生産管理など)

概要

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High-speed transportation of paper web sometimes leads the web handling system into unstable state because of increase in the air-entrainment into the gap between a rotating roll and moving web or the nip region of winding system. In this paper, the property of the traction change with increase in the air-entrainment into the gap between a paper roll and web or the nip region of winding system was investigated experimentally and theoretically. The critical speed to avoid slippage between a roll and web was found to be estimable by applying and extending the concept of "effective" frictional coefficient with the consideration of air-entrainment to the estimation of the traction force defined as the frictional force on a paper roll or at the nip region. Consequently, the web handling stability at high-speed was found to be predictable.
2006-06-25