Abstract
This paper describes the measurements of traction coefficient between paper-web and steel roller under various operation conditions. The four kinds of web such as uncoated paper (newsprint), light coated paper, heavy coated paper and PET are used as test webs. In the measurements, the web is wrapped over the rotating roller with the surface velocities from 0 to 40 m/s. The web tension is applied by the weight at the edge of web and the traction force between web and roller is measured by the load-cell at the other edge of the web. The traction coefficients are, then, obtained based on the Euler's belt theory. The flat type steel roller is used, and the web-wrap angle, web tension, web width, roller diameter are changed as operation parameters. From the measured results, the effects of such various operation parameters on the traction coefficient between web and roller are clarified.
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