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The paper explains that progress in flexible packaging technology can benefit from detailed modeling of processes and/or material properties. The example of film blowing is developed in some detail in view of its simplicity. It is shown that useful information on the molecular orientation in the produced film can be obtained by using the known values of the process variables, plus the outcome of a simple experiment that can be performed while the film is being produced, without disturbing the process. Molecular orientations are important in determining the film mechanical and barrier properties. Other examples are briefly discussed.
"Modelling Processes for Flexible Packaging,"
Journal of Applied Packaging Research: Vol. 8
, Article 2.
Available at: http://scholarworks.rit.edu/japr/vol8/iss1/2