FINISHLINE: Coating Technology
By Linda Casey -- Graphic Arts Online, 1/1/2008
With nearly two dozen new coating products on the market, this is a sampling of devices and peripherals for offset printed sheets—and some that work with digitally printed paper, too. (See pp.24-29 for additional coverage.) Next month, GAM will highlight coaters dedicated to digital.
Adphos-Eltosch: TwinRayUV-curing system deliveres 600 watts per inch using indirect energy. Key features: dual-emitter allows for different types of lamps; advanced side-reflector design enables better curing of sheet edges; and toolless lamp exchange uses plug-in connections. eltosch.de
Harris & Bruno: LithocoatChambered doctor blade/anilox roll conversion system applies UV, aqueous and specialty coatings. Key features: single metering roll and hydraulic chamber loading cylinder, which automatically compensates for blade wear. harris-bruno.com
Air Motion Systems: Peak UV Flexible Curing Inline ultraviolet curing system is compatible with virtually all sheetfed and web-offset presses. Key features: modular, toolless, plug-and-play design assists operators in moving easily between positions on press; double-parabolic shutter design cures “twice as fast” as conventional systems, using 30% less power; and Cool Impressions technology helps eliminate registration problems when coating heat-sensitive substrates. airmotionsystems.com
Olec Corp.: DMC 19 roller coaterOffline UV coater works with sheets as thick as 0.25´´ rigid stock and optionally configured for 80-lb gloss text. Key features: 5x7´´ min. sheet size; 14x20´´ max.; 8-gal. closed-loop recirculating UV dispenser; high-density UV resistant application roller; and single, air-cooled, adjustable 200/300 watts-per-inch, direct-focused UV lamp. olec.com
Duplo: UltraOffline device UV coats digital and offset-printed sheets from 80-lb. text to 130-lb. cover. Key features: up to 6,232 sph; self-compensating paper thickness adjustment; automatic air knife assist for lightweight stock; adjustable 200- or 300-watt UV lamp intensity; and double-side coat capability. duplousa.com
