B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
101/70
B41F 9/10 (2006.01) B41F 9/06 (2006.01) B41F 31/08 (2006.01)
Patent
CA 1062955
ABSTRACT A pressurized ink applicator for an intaglio printing press using stiff-bodied ink is provided with an ink-shearing element or heating element within the applicator nozzle to apply energy to the ink thereby to improve its flow properties immediately before its application to the printing plate of the press. A tight seal between the nozzle and the printing plate is provided by spaced blades resiliently mounted in the nozzle. Ink is forced by air pressure from an ink container into the nozzle. Accumulating chambers are formed in the flow path immediately before constrictions in the ink flow path. An optional sliding valve operating transversely in relation to the ink flow path controllably cuts off the flow of ink - e.g. when gaps between printing plate edges pass by the nozzle. The sliding valve is controlled by a cam moving with the printing plate. The valve operates between gates having mutually offset openings so that ink flow pressure is borne by the gates rather than by the sliding valve.
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