Anti-fog film must be checked under the actual condensation condition
Anti-fog behaviour changes with the packed food, temperature difference, film structure and observation time. A clear sample at room temperature tells us little about a lidding film used over hot food or a produce bag moved into cold storage.
Application note
Anti-fog behaviour changes with the packed food, temperature difference, film structure and observation time. A clear sample at room temperature tells us little about a lidding film used over hot food or a produce bag moved into cold storage.
For each trial we define the package format and condensation cycle first. The control film and trial film are viewed together at fixed intervals, because the initial result and the result after storage may differ.
Define the service condition before choosing a system
Tell us what is packed, the filling temperature, storage temperature, expected shelf period and whether the film is monolayer or coextruded. We use those conditions to select the carrier resin and establish a practical dosage range for the first run.