Formats
Retort Pouch: Structures, Processing and Uses
A retort pouch is a filled, sealed flexible pack sterilized in a retort. Learn the structures, seal integrity needs, regulations and typical uses.
Tag
barrier film
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Applications
Snack Packaging Film: Structures, Formats and Machines
Snack packaging film explained: typical BOPP and PET structures, barrier needs, nitrogen flushing, bag formats and the machines that run them.
Formats
Vacuum Pouch Packaging: Materials and How It Works
Vacuum packaging pouch guide: nylon/PE structures, chamber vs thermoform-fill-seal machines, puncture resistance, barrier needs and how to specify.
Performance
Water Vapor Transmission Rate (WVTR): Units, Test Methods and Interpretation
Water vapor transmission rate (WVTR) measures how much moisture passes through a film. Learn units, test conditions, ASTM F1249, E96 and how to read the number.