Abstract: A web cleaner (20) is presented that removes debris that clings to the surface of a substrate in a printing process. The cleaner uses a number of idlers (26) holding a web (22) taut therebetween with the web driven at high speeds by a printing press (24). The cleaner utilizes a pair of counter rotating textured rollers (28) positioned between the idlers with one roller positioned on each side of the web in close proximity therewith and each roller rotates in an opposite direction to that of the webs flowpath. A air separating bar (36) is positioned at right angles to the web bordering each roller in adjacent relationship for directing the air into a plenum (44) that covers each roller and skiving bar. The plenum is used to collect the debris detached from the web surface by air currents formed by rotation of the rollers creating an air film on the web surface. The same air currents produce a positive air pressure within the plenum.

Abstract: A web cleaner (20) for removing debris that clings to the surface of a substrate during a printing process. The cleaner (20) uses a number of idlers (26) which hold a web (22) taut therebetween, with the web driven at high speeds by a printing press (24). The cleaner (20) utilizes a pair of counter rotating, textured rollers (28) that are positioned between the idlers, with one roller positioned on each side of the web in close proximity therewith and each roller rotates in an opposite direction to that of the webs flowpath. A skiving bar (36) is positioned at an angle between 90 degrees to 180 degrees to the web bordering each roller in adjacent relationship for directing the air into a plenum (44) that covers each roller and skiving bar. The plenum (44) is used to collect the debris detached from the web surface by air currents formed by rotation of the rollers creating an air film on the web surface. The same air currents also produce a positive air pressure within the plenum.

Abstract: A printing press roller ink remover which has a solid ink transfer roller (20) that is contiguously driver by the press ink roller. The invention includes a plurality of side by side scraping blades (24) that selectively engage the roller to remove the transferred ink. A separated ink collector roller (26) receives the removed ink and is scraped clean by a single doctor blade (28) which deposits the ink on to a disposable liner (32) in a pan (30) underneath. The separate blades (24) are placed into their scraping position, either manually, or driven by pneumatic or electrical power. Selection is made by microprocessor signals, or by the operator, to uniformly correct the color density of the printing material.

Abstract: A Paperboard Edge Buffer And Cleaner for buffing the edges of cut paperboard and then cleaning the paperboard's surfaces and edges.The Paperboard Edge Buffer And Cleaner is comprised of an upper buffing roller 28 which buffs the leading and upper surface of the paperboard and a lower buffer roller 29 which buffs the trailing edge and lower surface of the paperboard. An upper paperboard vacuum duct 34 and a lower paperboard vacuum duct 35 cooperate with an upper pressure duct 36 and a lower pressure duct 37 to clean the paperboard.An ion generator 73 and 74 may be mounted within each pressure duct 36 and 37 to reduce the electrostatic forces which cause particles to cling to the surface of the paperboard.A source of ultrasonic energy 75 and 76 may be likewise mounted within each pressure duct 36 and 37 to help loosen particles clinging to the surface of the paperboard.