Why should I provide the film structure when sourcing a packaging machine?
• Film structure sets the heat-seal temperature/pressure/time window; without it the sealing jaw parameters cannot be set and the trial run fails.
• PE vs PET/AL laminates differ in COF, affecting film tension and former pull stability, so the servo tension must match the structure.
• AL or EVOH barrier layers give low seal strength; specify heat-seal jaw coating and cooling time or leaks occur.
• Film thickness and stiffness dictate pull-roller gap and bag-length accuracy; provide layer count and total gauge before sourcing.
• Unconfirmed film structure leaves no FAT acceptance baseline, and MOQ and lead time cannot be quoted against the actual film.
• PE vs PET/AL laminates differ in COF, affecting film tension and former pull stability, so the servo tension must match the structure.
• AL or EVOH barrier layers give low seal strength; specify heat-seal jaw coating and cooling time or leaks occur.
• Film thickness and stiffness dictate pull-roller gap and bag-length accuracy; provide layer count and total gauge before sourcing.
• Unconfirmed film structure leaves no FAT acceptance baseline, and MOQ and lead time cannot be quoted against the actual film.