These three films, used for food and other substances, are sensitive to
oxygen and moisture. Most packaging structures today are multilayer
laminates, often made up of two or even all three.
Excellent comparison of packaging films
Article from Paper Film & Foil Converter magazine compares oriented polyethylene terephthalate (OPET), oriented polypropylene (OPP), and oriented polyamide [(OPA) or nylon].
May 31, 2007
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