Resources
Insights
Plain-language guides to specifying flexible packaging.
4 min read
PET / Met PET / LDPE: how to read a laminate structure
A laminate spec lists its films from the outside in. Here's what each layer does, and why 2, 3, and 4 layer structures exist.
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Metallised film vs aluminium foil: which barrier does your product need?
Both give a pack its silver shine and keep out light and oxygen, but not to the same degree. Here's when foil is worth the extra cost.
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MVTR and OTR: what barrier numbers on a spec sheet mean
Two numbers decide most shelf-life questions: how much moisture and how much oxygen gets through the pack. Lower is better.
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Printed rolls or ready-made pouches: which should you buy?
Rolls run on your own form-fill-seal machine at the lowest cost per pack. Pouches need no machine. Here's how to choose.
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Centre seal, 3 side seal, stand-up, gusseted: pouch types explained
The pouch shape decides how the pack stands, fills, and looks on the shelf. A plain guide to the common formats.
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How to calculate laminate GSM and roll weight
Two formulas every flexible packaging buyer uses: GSM from each film's micron and density, and roll weight from GSM, width, and length.
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What affects the price and MOQ of flexible packaging?
Films, print colours, quantity, and format drive the price per kg. Here's what moves it, and why printed packs have a minimum order.
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