Center-Folded Film Requirements for Automatic Side Sealing
Center-Folded Film Requirements for Automatic Side Sealing Center-folded film is the single most important variable in automatic side sealing performance, and getting it wrong causes more downtime than any mechanical issue. This guide covers the exact film specifications, roll quality standards, and setup practices that keep intermittent and high-speed continuous side sealers running at rated output. Introduction Every automatic side sealer — whether intermittent or high-speed continuous — depends on center-folded film that is precisely folded, tightly wound, and dimensionally consistent. Operators often blame the machine when seals fail or film jams, but in most cases the root cause is film that does not meet the requirements for automatic feeding. This article explains what those requirements are: film gauge, fold accuracy, roll concentricity, core dimensions, sealant layers, and shrink ratios. It also walks through the step-by-step process of loading, threading, and tuning film ...