B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
B41F 22/00 (2006.01) B41N 10/04 (2006.01) B65H 27/00 (2006.01)
Patent
CA 2167955
A support cylinder for guiding freshly processed substrate material between printing units or at the delivery end of a printing press is provided with a low coefficient of friction, semi-conductive base covering for supporting and guiding the freshly processed substrate material without smearing the ink or causing indentations on the surface of the substrate. Radially projecting surface portions of the semi-conductive base covering define electrostatic precipitation points and reduce the surface area available for frictional engagement. The low friction and semi-conductive properties of the base covering permit free movement of the freshly processed substrate relative to the support cylinder surface. Electrostatic charges carried by the freshly processed substrate are discharged through the semi-conductive base covering into the support cylinder, thus eliminating electrostatic cling attraction between the freshly pro- cessed substrate and the support cylinder.
Branson John Andrew
Demoore Howard Warren
Branson John Andrew
Demoore Howard Warren
Johnson Ernest Peter
Printing Research Inc.
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