The Effect of Moisture on Blistering During the Heat-sealing of Paper and Foil Containing Packaging

摘要

Limiting the amount of moisture in paper included in impermeable packaging is necessary to prevent internal delamination known as blistering during the heat sealing of packages for articles such as personal care devices, pharmaceutical tablets, denture tablets, etc. The relationship between moisture content and the blistering problem is shown in both lab tests and package leaker rate data from packaging lines. Recommendations for dealing with the problem are made.