When selecting VFFS packaging film, manufacturers should evaluate how the film performs under heat, tension, and product contact. Key considerations include film thickness, barrier protection, sealing layer compatibility, and machine handling properties such as stiffness or slip level. The film must maintain consistent tracking through the forming collar and deliver strong seals under the operating temperatures used in vertical form fill seal processes.
Unified Flex helps manufacturers match films to production requirements by testing seal performance, dwell time, and film feed characteristics, ensuring that both film and machine work together for stable, efficient packaging performance.