Stanelco markets a method to seal plastic food-tray packages using radio frequency technology, called Greenseal. Thecompany claims the technology provides a cheaper and more efficient method heat sealing trays for an industry focused on cost cutting and food safety.
Current heat-sealing methods for plastic tray Packing Machine uses a polyethylene laminate as a glue to make the seal, typically at between 150C-160C. Stanelco's Greenseal method does away with thelaminate and welds the two sides of the package together at 50C using radio frequencies. The method results in a 20 per cent reduction in the cost of Packing Machine material and a 75 per cent reduction inthe cost of energy used in the process, the company claims.
"By further improving machine reliability and lowering costs, it will greatly speed up the acceptance of the Greenseal technology as an industry standard within the packagingindustry," Stanelco stated in a press release this week.
In other related news Stanelco said it is currently testing the technology on its new biocompostible food tray, provisionally named Starpol 2000. The tray is made of a blend of starch and polyvinylalcohol (PVA) resin.
SStanelco believes its Starpol 2000 range of materials will be able to significantly undercut the price of polyester whilst providing the necessary gas barrier for MAP sealing.