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FLEXO Magazine : August 2011
46 FLEXO august 2011 www.flexography.org On some models, equipped with special color-station designs, those in-the-know say, “It’s possible to have 360-de- gree register on each station and independent engaging and disengaging to allow the remaining part of the machine to operate.” T hey also observe, “Since each color station is independent from the others, it is easy to mechanically ar- range various rotations of the inking parts. It is also possible to change the web lead to flood coat a sheet, or print coatings in a standard fashion. These techniques have been applied in the preprinting of corrugated liner material. ” BROAD MODEL RANGE Stack presses on the market today are designed to meet a broad range of customer expectations. Some are manufac- tured specifically to be placed in-line, beside extruders, weld- ing machines and roll-to-roll applications. Others can accom- modate very wide web widts of up to 2.5m / 98.4 -in. Roll-to-roll versions handle both paper and paperboard applications. And, recently designed sleeve models, in both geared and gearless executions, facilitate fast changeover. Even the simplest machines can be upgraded with features that offer: motorized decks and register racks, closed cham- ber doctor blades, print sleeve technology, automated regis- tration systems and video camera-based print fault detection systems. In general, stack presses are delivered with winders suit- able for both paper and paperboard in diameters of 1000mm / 40-in or larger in both single or double shaft executions. A turret winder is suitable for flying splice roll changes at high production speeds. Other common features on traditional models are robotic, electric hoist systems for position print cylinders and anilox rolls in wide web dimensions. In-line versions can be equipped with as many in-line sta- tions as required by the customer. Generally, such models are completely gearless and equipped with single motors on counter pressure rollers, connected via an electric line shaft. Direct-drive servomotors are installed on plate cylinders and anilox sleeve cylinders. Both the printing plate and the anilox use sleeve technologies to facilitate fast changeover. Alterna- tive drying systems, to include UV Lamps or EB technology are counted among options. As are: In-line viscosity control, automatic washup systems, automatic register control, print inspection devices, computerized set-up, in-line slitters, in-line rewinders, motorized air recirculation systems and front/back printing capabilities. Succinctly put, wide web, in-line converting offers targeted economies and efficiencies and the stack press remains posi- tioned among a flexographic printer’s most valued tools of the trade. That’s a reality! n Designed and drawn, an 8-station, stack press configuration. this web path drawing of a 6 + 2 stack press shows the different web path possibilities and the flexibility that is not available from a CI flexo press. QUICKCHANGEINFLEXOPRINTING UTECO CONVERTING SPA • I 37030 COLOGNOLA AI COLLI (VR) • PH.: +39 045 6174555 • FAX: +39 045 6150855 © GENETIC INNOVATION And a new innovation is coming... Leading edge innovation in flexographic printing • Print configurations: 6 - 8 - 10 color • Max. print speed: 1300 fpm (opt. 1460 fpm) • Printing widths: 48” to 60” • Print repeat range: 13” to 32” • Fully equipped state of the art machine • Reduced make ready and maintenance times • Quick and simple sleeve changeover UTECO NORTH AMERICA 3400 TOWN POINT DRIVE • SUITE 160 KENNESAW, GA 30144 • PH. (770) 427-4100 • FAX (770) 427-4872 firstname.lastname@example.org • www.uteco.com HIGH PROFITABILITY FLEXO A03/11HP-RANGE email@example.com • www.uteco.com QUICKCHANGEINFLEXOPRINTING And a new innovation is coming... • Quick and simple sleeve changeover KENNESAW, GA 30144 • PH. (770) 427-4100 • FAX (770) 427-4872 www.uteco.com • P2P®: dynamic adjustment system controls printing pressures • PCT®: Press Control during Transition • PTC®: Predictable Torque Control • SprintWash®: new automatic washup system • FlexoSmartPackQC®: Uteco engineering platform for improved performance and profitability in quick change flexographic printing • ShopWare® Production Management, Control & Monitoring: easy machine-operator interface to manage high-productivity • LogiPack®: automatic handling of reels and cores