Resource Efficient Innovations Database (REID)

Multi-layer plastic food packaging offers extended shelf-life

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Multi-layer plastic food packaging offers extended shelf-life
Plastic packaging incorporating a barrier foil between injected the layers of plastic could deliver a shelf-life benefit comparable to metal or glass
In Development – The multi-barrier packaging meets practical standards and that trials can be now carried out in the food processing industry. Nestal and their partners indicate that they will develop the system further with partners in the packaging and food processing industries.

Benefits
Packaging Reduction, Product Waste Reduction, Shelf life extension

Product Categories
Food

Relevant Materials
Plastic – Flexible, Plastics - Other / mixed

Relevant Packaging Formats
Bottles and jars, Other

Supply Chain Phase
Production

Details

A new packaging format consisting of a barrier foil which is positioned between the injected layers of plastic will allow food to be preserved in plastic for a longer period of time.
To create the multi-layer function, a pre-formed barrier foil, similar in shape to the finished container and made from metal or plastic of low permeability, is inserted into the packaging mould. After this stage, the first plastic layer is injected into the outer side of the container, followed by a second plastic layer onto the barrier foil on the inner side.
The process allows for in-mould labelling and the subsequent pack can also be stackable, reclosable and easy to open. A further benefit of the approach is that the barrier foil is protected against damage from the outside but also contact with the packaged product is avoided. The barrier compound also means there is no retort shock (or weakening of the barrier properties for the period during sterilisation of the food product due to water absorption by the plastic).
 
The content in this entry has been obtained from publicly available information sources only (e.g. press releases, website and trade press articles) and is subject to completion of a validation process with the technology supplier.

Potential Benefits

The ability to achieve higher barrier performance in plastic packaging has the potential to deliver significantly extended product shelf-life and a subsequent reduction in food waste.

Intellectual Property

Nestal is collaborating with Glaroform and Ilsemann in the development of this new product.

Consultant View

Currently the type of packaging targeted by this technology is not recycled in the UK, but the potential implications of the barrier layer on recyclability and on emerging recycling processes should be investigated.

There are also other technologies which can provide improved product shelf-life. Readers interested in finding other solutions should try searching the REID database using combinations of filters and search terms such as “Food”, “barriers” and “active packaging”.

Contacts and Further Information

Reto Morger, Leiter Marketing
Netstal-Maschinen AG,
8752 Näfels, Schweiz 
www.netstal.com
Tel: + 41 (0)55 618 61 11

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