Predicting the Heat Seal Performance of Ionomer Films

  title={Predicting the Heat Seal Performance of Ionomer Films},
  author={Barry Alan Morris},
  journal={Journal of Plastic Film \& Sheeting},
  pages={157 - 167}
  • B. Morris
  • Published 1 July 2002
  • Engineering
  • Journal of Plastic Film & Sheeting
The heat-seal performance of a flexible plastic package depends on the sealing bar temperature, packaging line speed, film thickness and properties of the sealant resin. For a given sealant, thinner films reach their maximum seal strength at lower bar temperatures and faster line speeds than thicker films. A model is developed that relates these factors to the amount of molecular penetration that develops at the heat-seal interface of ionomer films. A critical value of the penetration is found… 

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