Rollprint Unveils New Barrier Film Technology

With the introduction of ClearFoil X and ClearFoil Z, clear ultra-high barrier packaging options can now replace aluminum foil structures for those very demanding applications.

The company claims that ClearFoil Z is the first transparent, non-aluminum foil, flexible structure to reach ultra-high oxygen (O2) barrier properties of 0.0008cc/100in2/24 hrs and moisture barrier properties of 0.0008g/100in2/24 hrs. ClearFoil X performs at 0.004cc/100in2/24 hrs and 0.004g/100in2/24 hrs, respectively.

Doug Dodrill, vice president of technology at Rollprint, said: “With ClearFoil Z, we are able to provide barrier properties 100 times better than those typically found with non-foil structures. Additionally, ClearFoil X’s barrier properties are approximately 10 times better. Because pinholes are inherently present in thin gauge foils they can impact barrier properties. As a result, ClearFoil X and Z can outperform structures made from the most common foils.”

The two new barrier films achieve the properties via aluminum oxide-coated polyester, which can be either laminated or extrusion-coated with any of Rollprint’s proprietary sealant technologies, for added functionality.

Mr Dodrill added: “ClearFoil Z and X are ideal for IV bag overwrap, combination drug/device products and sensitive devices such as absorbable sutures and tissue.

“They are well suited to pharmaceutical applications where keeping a tight tolerance on oxygen and moisture ingress are critical. These products target applications where oxidation or small changes in ingredient ratios compromise efficacy or performance. Additionally, the films can be used for moisture and oxygen-sensitive food applications. Transparent structures also provide marketing benefits for the brand owner. For many products, the ability to see the contents is a plus.”