Buyer confidence

Extrusion lamination: validate barrier, seal, curl, and line fit before scale-up

Extrusion lamination bonds substrates with a molten polymer layer, so the right structure depends on barrier target, sealant, coating weight, web handling, and filled-pack stress.

Extrusion lamination flexible packaging film and seal review

Capability fit

Useful for rollstock, high-barrier films, sachets, pouches, and automated packaging lines.

Specification clarity

Review substrate choice, seal layer, bond strength, COF, curl, and line speed before committing.

Launch confidence

Filled-pack trials help catch pinholes, delamination, weak seals, and storage failures.

Quote readiness

Quote path should include product sensitivity, target shelf life, pack format, web width, and filling equipment.

Buyer situation Recommended path
High-barrier film Extrusion lamination structure review
Automated filling Web width, COF, and seal window
Aroma or moisture risk Barrier and filled-pack testing
Scale-up Line speed and repeat material spec

What to send for a faster quote

Share product type, fill weight, material preference, target MOQ, artwork status, and launch timing so the quote can be matched to the right structure.

What is extrusion lamination used for?

It is used to bond flexible packaging substrates and create structures with specific barrier, seal, and handling properties.

What can fail in extrusion lamination?

Common risks include curl, poor bond, pinholes, weak seals, and mismatched COF for filling equipment.

What should buyers specify?

Specify product type, pack format, web width, line speed, barrier target, seal needs, and shelf-life goal.

Lamination Processing Work

Extrusion Lamination

Extrusion lamination is by applying a layer of adhesive and extruded between two or more layers of material. The layers are then bonded together under heat and pressure. This method is typically used to laminate a variety of different materials, such as paper, film, and foil. When compared to other lamination methods, such as adhesive lamination, solvent-based lamination, and water based lamination, extrusion lamination has the advantage of being versatile and cost-effective. However, it also has the disadvantage of requiring costly setup which makes it not suitable for short-run projects. Co-extrusion lamination is also a faster and more efficient method, and can create multilayer films with specific properties. However, it can only be used to laminate a single type of material, such as film.

Process

The process involves the following steps:

1. The layers of material to be laminated are fed into an extruder where they are heated to a high temperature.

2. A layer of adhesive is then extruded between the layers of material. The adhesive is usually a polymer, such as polyethylene, that is melted and extruded in a thin layer.

3. The layers of material and adhesive are then passed through a set of nip rollers which apply pressure to the laminate and bond the layers together.

4. The laminate is cooled and wound up into a roll ready for further processing or packaging.

The outcome will be a single, cohesive package with excellent barrier properties, strength and printability.

Application and Example Capabilities for Solvent Based Laination

Click here for water based lamination

Click here for non-solvent based lamination

Click here for solvent based lamination

Learn about the materials
Applications

Material Structure

Reference

Frozen and beverage packaging

NY/AL/extPE/PE
PET(NY, OPP)/extPE/PE
KOP(KNY)/extPE/PE
PET/VMPET/extPE/PE

ExtPE stands for "extruded polyethylene". It is a type of polyethylene that is produced by extrusion process: by melted and forced through a die to create a shape, such as a film, sheet, or tubing.

Food Packaging

VMPET/extPE/PE
OPP/extPE/PE

OPP/EVOH/extPE

OPP/exPP

exPP stands for "extruded polypropylene". In the case of exPP, the polypropylene is melted and forced through a die to create a film or sheet. The exPP film or sheet can then be used for a wide range of applications, such as packa

Comparing

Extrusion and Co-extrusion

In this method, a layer of adhesive is extruded between two or more layers of material, and the layers are then bonded together under heat and pressure. This method is typically used to laminate a variety of different materials, such as paper, film, and foil.

Extrusion Lamination with filmsExtrusion Lamination with films

Advantages of Extrusion Lamination

  • It is a cost-effective method of lamination
  • Can be used to bond a wide variety of materials
  • Can create a strong and durable bond between layers
  • Can be used to create a wide range of products
  • It can be used to improve printability and aesthetics of the final product
  • It can be used to add barrier properties to the final product

Disadvantages of Extrusion Lamination

  • It requires a specialized equipment and skilled personnel to operate
  • The process requires high temperatures, which can cause some materials to degrade
  • It can be difficult to control the thickness of the adhesive layer, which can affect the final properties of the product.

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