SHEETFED DRYING/CURING SYSTEMS -- Running Hot and Cold
Printing Research's patented AB ("Air Blanket") infrared drying system is said to feature a unique air management system. Incorporated within the IR drying zone is a combination of high-velocity hot air jets and a high-volume, low-pressure air extraction system. The two components speed drying by evaporating moisture from the sheet, then extracting the moisture-laden air from the drying zone.
PRI's 'Cold' UV curing system is designed to utilize chilled and deionized water to filter out the majority of unwanted heat given off by the UV lamp. The design provides a much cooler cure to the sheet, making it well-suited for use with heat-sensitive substrates.
Circle 379 on Reader Service Card
Prime UV Systems offers UV curing units with dual, cool-operating lamps. This design is said to increase the speed of the curing process while eliminating the transfer of heat to substrates. Its Prime Smart System 2100 control platform assists the press operator by monitoring curing parameters and adjusting UV intensity output to match the running speed of the press. It includes a dedicated computer system with I-modem to provide instant access to the manufacturer's service department.
The company also has developed a "UV Sheetfed Coater Conversion" for the sheetfed printer. The retrofit package reportedly enables a shop to quickly and easily convert an existing press into a UV coater.
Circle 380 on Reader Service Card
Oxy-Dry's DuoTek drying systems utilize short- and medium-wave infrared technology in conjunction with heated air knives and evacuation. The integrated, modular design of these elements is said to support effective drying of all ink colors and stock weights. The multiple cassette configuration uses Allen Bradley controls to maximize the efficiency of the system with regard to performance, power consumption and initial cost.
The company's UV/Hybrid curing systems feature super-cooled air and broadband lamp technology, with virtually instant on/off capability eliminating the need for shutters. The technology provides adjustability from 200 to 800 watts per inch per lamp for increased flexibility in system design, as well as an attractive initial capital investment.