Rollprint Packaging Products, Inc., is announcing the addition of a second high-barrier structure to its Exponent film family. Exponent 2 features a combination of Rollprint’s award-winning ClearFoil and a coextruded non-crystalline polyester sealant. (The non-crystalline attributes enhance sealing properties.) The material targets pharmaceutical and other chemically-sensitive applications which require exceptional barrier and clarity.
“With Ineos’ recent announcement that it is exiting the Barex acrylonitrile-methyl acrylate copolymer business, we wanted to let the industry know immediately that there is an alternative clear, high-barrier structure,” says Dwane Hahn, vice president of sales and marketing at Rollprint. “In fact, Exponent 2 offers improved sealing characteristics over Barex due to easier-to-create hermetic seals and improved line speeds.”
ClearFoil, a barrier-coated polyester, is coextrusion coated with a non-crystalline polyester sealant to create Exponent 2. Pre-made or inline pouching, lidding and flow wrap applications are anticipated to be the first commercialized package types.
When compared to traditional foil-based high-barrier structures, Exponent 2’s reduced number of layers and gauge offer cost-savings and create an improved environmental profile for a wide variety of pharmaceutical products. The structure’s high-barrier and clarity properties also make it a suitable replacement for glass vials, where cost and breakage continue to challenge manufacturers.
“We have engineered the Exponent family of films to meet performance requirements for pharma and other chemically-sensitive products, but use less material to help manufacturers meet their cost objectives. We also wanted to offer clarity attributes not possible with foil-based structures and give companies an alternative to glass vials,” says Hahn.
Exponent 2 has been engineered to provide a chemically neutral, ultra-high oxygen and water vapor barrier with chemical resistance.
The transdermal patch, e-cigarette and diagnostics markets are the first application opportunities Rollprint envisions for this technology. Exponent 2 is also an excellent candidate for single-dose delivery systems and cosmetic applications because of its high surface-to-volume ratio and unique barrier properties. Additionally, the high-barrier film is ideally suited for the emerging flexible packaging for wine and spirits segment because of its outstanding organoleptic characteristics.
Among the articles in the August 2019 issue of Flexible Packaging Magazine, learn about efforts taken toward packaging sustainability, read the converter news, notes on the upcoming PACK EXPO, and much more!