Davis-Standard LLC showed a range of extrusion and converting products at NPE2009 that are designed to help processors weather the economic downturn and prepare for an upcoming recovery.
D-S has updated its XP roll stand with additional capacity for laminating, said Ricky Keller, D-S vice president of blown film. The stand is being installed in a D-S coextrusion laboratory line in the firm's Pawcatuck, Conn., technical center.
During NPE in Chicago, a 40-inch-wide model, the XP Express, was shown with a coextrusion die, feed block, and layer multiplier as well as a special adaptor price for injecting atmospheric gas for foam applications. The firm said the XP Express is available for trials in Pawcatuck.
The XP Express PS and CS models have been effective for in-line thermoforming of polypropylene, amorphous PET and polystyrene. The XP Express is equipped for extrusion processes involving ethylene vinyl alcohol and vinyl acetate copolymers for areas such as solar energy. D-S officials said progress is being made with barrier structures comprised of more than 100 layers using layer multipliers for microlayer composites.
The effectiveness of the XP Express across such a broad range of applications is one of the reasons we are creating a custom sheet laboratory in-house for new product development, said Al Chrisbacher, D-S vice president of sheet systems. One focus is foam technology for extrusion of materials used in packaging and other density-reduction applications.
The Pawcatuck company also has updated its PAC 60 surface winder that can wind films in widths from 80-140 inches with a single- or dual-winder configuration. The winder uses a center shaft support for 3-inch cores to wind multiple slit rolls to a 30-inch outside diameter, while 40-inch rolls are wound on 6-inch shafts. The PAC 60 is capable of speeds exceeding 620 feet per minute.
In Somerville, N.J., D-S recently commissioned a coextrusion pilot plant at its new, 4,000-square-foot blown film laboratory. The line is available for paid trials in stretch and lamination films, shipping sacks, general-purpose film and technical films. Work includes research on biodegradable films and applications requiring higher rates and tighter gauge control.
Keller said that most trials will be proprietary. By using production scale equipment, scale-up problems should be minimal.
In its converting business, D-S promoted its new extrusion coating line introduced in 2008. The line provides processors with a comprehensive line of extrusion coating equipment from a single-source supplier to support basic applications, all the way up to those with high-speed, complex requirements. Fast delivery and a range of options have made the system well-received in the marketplace.
In reclaim systems, D-S touted its system based on Gneuss Inc.'s multirotation screw system. The MRS placed at the front end of the system strips moisture and volatiles from PET reclaim 25 times better than with a twin-screw extruder. An in-line viscometer meter ensures intrinsic viscosity remains within specification. One such reclaim line was built for the market a year ago and another is under way.
D-S has two new control developments in its extrusion systems group that offer more options, while improving processing efficiencies.
The DS-e TPC touch-panel control system has been improved to include coordinated on-line drive control and new features to support customers across all product lines, while maintaining pricing comparable to discrete controls.
The React (remote access technology) system, standard on all new Epic III systems, is designed to reduce downtime and lost production. It enables D-S process engineers to support customers worldwide in real time without a service call.
Obeikan Investment Group of Riyadh, Saudi Arabia, planned in June to install a stretch film line from D-S as part of the Saudi company's global expansion.
Obeikan is one of the largest Middle Eastern converters and a leader in global liquid packaging, flexible film, publishing and printing markets.
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