D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 3/08 (2006.01) B65H 27/00 (2006.01) D21G 1/02 (2006.01)
Patent
CA 2113102
A roll cover apparatus (12) is disclosed for covering a roll (14) of a pa- permaking machine. The apparatus includes a synthetic cover (16) which is applied to the outer peripheral surface (18) of the roll, which is of an electri- cally conductive material. A plurality of fibers (20, 21, 22) are randomly dis- persed within the synthetic cover such that the plurality of fibers are dis- posed between the outer peripheral surface of the roll and an outer face (24) of the synthetic cover. An electrically conductive material (26) is applied to the external boundary (28) of at least some of the fibers (20, 22) such that during use of the apparatus, when slippage occurs between a web of paper (W) being treated by the apparatus and the outer face (24) of the cover, an electrostatic charge (30) generated by the slippage is discharged by the con- ductive material (26) from the outer face of the cover to the electrically con- ductive roll (14) so that scorching of the web by discharge of the charge (30) through the web is eliminated.
Bonander James
Jaget Charles W.
Metso Paper Inc.
Ridout & Maybee Llp
LandOfFree
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