- July 01, 2007, David J. Bentley, Jr., Editor
Providing practical information to the converting and packaging industries…
New High Barrier Lidding Materials: Optimization Studies To Understand Seal Peel Characteristics To Different Consumer Cup Substrates
by Gopal Iyengar, Stora Enso North America
Lid structures used in flexible consumer packaging products such as ice cream, yogurt, orange juice, etc. have two or multilayer structures composed of either aluminum foil/poly, paper/aluminum foil/poly, or poly/aluminum foil/poly with varying oxygen and water vapor transmission barrier properties. One layer in the structure can have a seal peel layer that seals to various cup substrates that hold food products, but the same seal layer can also be peeled for use.
Combining the proper substrate design and selection of polymers allows one to design high barrier paper/poly lid substrates that perform close to barrier properties but with better seal peel and die cutting with superior printing properties than conventional aluminum/seal or poly/poly lids. Using the seal peel optimization techniques mentioned in this paper allows characterization of the lid substrate performance to satisfy end user or consumer needs. Using the techniques mentioned may provide answers to an important question, “What is the lid substrate and polymer combination that meets the sealing window, average peel strength, and leak value properties to meet consumer needs?”
Don’t Let Profits Go Up In Smoke: Modern Air Pollution Control Systems Reduce Energy Costs And Destroy Higher Levels Of Air Pollutants
by Charles M. Martinson and Mike Van Asten, The CMM Group
Manufacturers need to review their emission levels and possibly consider replacing or retrofitting their current APCS with more modern technologies. As energy costs rise, these companies should consider all available options to help reduce the energy costs associated with operating their APCS. Replacing an older system with a new, high efficiency systems now offers a short-term payback on the capital investment by a company. Retrofitting a secondary recovery unit to an older APCS can generate significant energy savings. Either an upgrade or a retrofit could provide substantial operating savings and have a positive impact on the profit of a company.
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