In Vertical Form Fill Seal (VFFS) packaging, the ideal sealing temperature is the point where the film’s sealant layer bonds securely without damaging its surface or structure. The right temperature depends on the type and thickness of the film, as well as the dwell time, the duration the sealing jaws remain in contact. If the temperature is too low, seals may be weak or incomplete; if too high, the film can warp or burn. Unified Flex VFFS systems use precise digital temperature control to maintain consistent sealing conditions, helping ensure every bag is sealed cleanly and reliably.
