D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 7/08 (2006.01) D21F 1/80 (2006.01) D21F 3/00 (2006.01) D21F 3/02 (2006.01)
Patent
CA 2438010
A belt for a papermaking machine has minute projections and recesses randomly formed in a shoe- contacting surface of the belt by a powdery material contained in a high molecular weight elastic section formed on a base body. The surface roughness RZ of the shoe- contacting surface is between 50 and 500 microns; the particle diameter of the powdery material is between 5 and 500 microns; and the content of the powdery material in the high molecular weight elastic section is between 5 and 50 percent by weight. A lubricant is held in the minute projections and recesses, and consequently more lubricant may be supplied between the belt and the shoe with which it cooperates. As a result, friction between the belt and the shoe is reduced, and less energy is required to drive the papermaking machine.
Borden Ladner Gervais Llp
Ichikawa Co. Ltd.
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