Abstract: A simple algorithm has been developed for predicting traction in web handling applications. Minimal traction exists when the minimum air film height between the roller and web is greater than ...

Abstract: An experimental study shows that the traction coefficient of friction (μT ) is a function of the predicted air film height, the roller and film surface roughness, and the static coefficient ...

Abstract: Air entrainment can become a significant problem in a web handling process line. The development of an air film between a roller and web can cause a reduction in traction. This can cause a ...

Abstract: Air entrained between a web and roller can cause a loss in traction that can affect web quality. The entrained air causes an air layer to form which separates the web from the roller. ...