Rolls of printed and metallized packaging film beside a slitter-rewinder in a converting plant

Materials · Performance · Machines

Flexible Packaging Materials, Films & Technology Guide

Technical resources covering flexible packaging films, foils, laminates, packaging formats, barrier performance and packaging-machine compatibility.

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The topic chain

From the film to the finished pack

Every guide on this site follows the same path: what the material is, how it performs, which format it becomes, how it runs on the machine and where it is used.

  • Materials

    Polymer films, shrink films, barrier films, aluminum foil and laminates, and the role each layer plays in a structure.

  • Performance

    Oxygen and water vapor transmission, seal initiation temperature and the tests behind the numbers on a data sheet.

  • Formats

    Stand-up pouches, flow wraps, retort pouches and other pack types, and what each one asks of the material.

  • Machine Compatibility

    What VFFS machines, flow wrappers and pouch machines need from a film or a premade pouch.

  • Applications

    Structures and formats matched to snacks, coffee, pharmaceuticals and other products.

  • Sustainability

    Mono-material structures, recyclability and how material changes affect sealing and barrier.

Machine compatibility

Films that run well on the packaging line

A film can meet every barrier target and still fail on the machine. These guides cover the properties each type of packaging equipment depends on.

  • Flow Wrapping Films

    Flow wrap film guide: common structures, cold seal vs heat seal, COF, sealing, registration, tracking and troubleshooting for horizontal flow wrappers.

  • VFFS Films

    VFFS film guide: common structures, thickness, barrier, sealing, COF, tracking and troubleshooting for vertical form fill seal machines and rollstock.

  • Premade Pouch Materials

    Premade pouch packaging materials explained: tolerances, stiffness, sealants, zippers and the specs pouch machines need to open, fill and seal reliably.

  • Stick Pack Films

    Stick pack film is narrow laminate rollstock formed into slim tubes. See structures, sealing, lane slitting, tear notches, COF and machine checks.

  • Sachet Films

    Sachet packaging film runs on 3-side and 4-side seal machines. Compare structures, sealing, tear notches and fixes for leaks and seal-through-contamination.

  • Shrink Packaging Films

    Shrink wrapping film must suit the sealer and tunnel. See which films fit L-sealers, side sealers and bundlers, seal methods and how to fix common defects.

Sustainable packaging

Designing flexible packs for recycling

Moving from mixed-material laminates to recyclable structures changes more than the material list. It affects barrier, heat resistance and how the film behaves in the sealing jaws.

Explore sustainable packaging
Mono-material polyethylene stand-up pouches with resin pellets

New to flexible packaging?

Start with the overview: what counts as flexible packaging, how films and laminates are made, and how rollstock differs from premade pouches.

Read the overview

Technical guides

In-depth guides

Long-form guides to the specifications that decide whether a pack protects the product and runs on the line.

Working through a film or pouch specification?

The selection guides cover comparing data sheets, checking a supplier and controlling a first order of printed film or pouches.

View selection guides