PACK EXPO International 2014 convened in Chicago from November 2 through 5, bringing flexible packaging material suppliers, converters, and brand owners together for North America's largest processing and packaging trade event. Flex Films (USA) Inc., part of UFlex Limited, used the show to highlight source reduction achievements enabled by advanced biaxially oriented polypropylene film technology.
Flex Films and LEHAR Snack Foods collaborated on a pouch featuring a new laminated, metallized structure achieving 23 percent less material compared with the prior format. Flex Films' 8-micron BOPP film—described as suitable for printing and lamination and among the thinnest commercially demonstrated structures at the time—received primary credit for the gauge reduction.
Downgauging BOPP while maintaining barrier, stiffness, and printability required coordinated adjustments across extrusion orientation parameters, ink adhesion systems, and lamination adhesive selection. Converters visiting the Flex Films booth examined how extreme gauge reduction shifted seal window requirements and pouch-forming tolerance at VFFS and HFFS lines.
Source reduction aligned with broader PACK EXPO 2014 sustainability messaging: brand owners sought measurable material-weight reductions per package unit rather than declarative green labeling without quantified performance data. Film suppliers competing on micron thickness needed run-length validation data to support converter qualification trials.
For equipment buyers, ultra-thin BOPP programs reinforced the importance of tension control, nip pressure consistency, and slitter knife condition—process variables that become more critical as film gauge approaches single-digit microns and edge defects propagate to customer forming lines.