Resource Efficient Innovations Database (REID)

Eliminating materials in induction seal liners

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Eliminating materials in induction seal liners
New concept challenges the traditional foil-based four layer laminate seal comprising of PET, foamed PE, aluminium and a seal layer
In Use – Vaasen Flexible Packaging is supplying Weener Plastic Packaging Group with the new induction seal liner to fit a new range of screw caps being supplied to Homann for its Livio sauce range.

Benefits
Packaging Reduction, Resource efficiency (e.g. filling line efficiency)

Product Categories
Food

Relevant Materials
Plastic – rigid

Relevant Packaging Formats
Bottles and jars

Supply Chain Phase
Design, Filling

Details

Vaasen Flexible Packaing has developed a new concept that challenges the traditional foil-based four layer laminate seal comprising of PET, foamed PE, aluminium and a seal layer, by replacing the PET and PE with a single layer of PET50. The new VFP foil acts as an inlay to the screw cap of sauce bottles to ensure pack integrity, tamper evidence and product freshness. Once the bottle is filled, the screw cap is applied and by induction sealing, the alufoil-based liner is sealed to the bottle. The PET50 successfully provides sufficient isolation to avoid melting the screw cap in the sealing process and it also achieves the traditional purpose of the foam layer, to provide rigidity.

The three-ply PET, aluminium and seal layer membrane cuts out one step in the production line. This makes it an efficient and effective product for the sauce, condiment and dairy markets.

Potential Benefits

As well as eliminating the PE foam layer from the induction seal construction, this innovation also eliminates one step in the production line, thereby increasing line efficiency.

Intellectual Property

The company comments that "there is no I.P. involved with our foils although in some cases where they form an integral part of a closure there may be a patent involved with the closure as a whole, owned by the closure manufacturer."

Consultant View

This is a small change, but for high volume products it could consitute a considerable material saving.

Contacts and Further Information

Company details:
Vaassen Flexible Packaging BV
P.O. Box 2
8170 AA Vaassen, The Netherlands
Technology contact details:
Ralph Northausen (Sales Manager)
Tel mobile: 00 31 612 680 393

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