PRIMIR study provides the latest word on ultraviolet and electron beam curing in printing.Read more
Ellis Paperbox added Eagle Systems' cold foil unit to a new Komori press, pleasing customers looking for shine at an affordable price.Read more
Fluid preparation and delivery may be ancillary to the coating process, but they are critical to the coating outcome.Read more
PFFC's "Static Beat" columnist Kelly Robinson is part of expanded "Ask the Experts" program. Kelly and "Coating Matters" columnist Mark Miller present at CEMA …Read more
News | New Products
Acquisition includes organic semiconducting material patents and FlexOS trademark, plus licenses relating to organic thin-film transistor technology
The X-350 laser die-cutting module can be integrated with converting solutions from Smag Graphique
Manufacturer of corrugated containers, displays, and more sells to many industries and reportedly has a history of innovation in packaging
Company has certified the Epson SurePress L-4033AW with iSi MaxPrint RIP supports file formats required to produce the Process Metallic Color System
The acquisition is expected to allow Glenroy to provide customers with high-quality stand-up pouches
EcoCortec VpCI films and bags, available in custom sizes and shapes, are said to offer strong protection for metal parts
Program allows companies to personalize FTA books with their logos as gifts to customers, prospects, etc.
Directories | Reports
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Visit Mark's Coating Matters from fluid coating expert Mark D. Miller; Process improvement and project management for precision roll-to-roll coating applications.
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- January 22, 2013
WESTERLY, RI | Maxson Automatic Machinery Co. offers an accumulating festoon said to allow inline sheeters to match closely the speed of downline processes, thereby maintaining accurate sheet length. The system provides a closed loop tension control for the roll stand, accommodating immediate speed changes that company says would otherwise be impossible because of the weight of the unwinding roll.
The design employs an air cylinder that spreads the festoon rolls apart or draws them together, a transducer, an electrical–pneumatic converter, and the roll stand’s tension control to automatically compensate for rapid changes in web speed. As the rolls get closer together, the roll stand brake pressure is reduced. As the accumulator’s rolls spread apart, the unwind tension is increased.
The e-p converter changes the roll stand’s tension control setting to a pneumatic output that adjusts the air pressure in the cylinder, tightening or slackening the web around the accumulator rolls. A transducer monitors the movement of the roll frames feeding back the information to the roll stand’s tension controller adjusting brake pressure until the preset tension is regained.