Sealed Air seeks materials or processing techniques which will promote the lateral diffusion of oxygen along a film surface.
Technology to achieve selective diffusion or transport of gasses through film walls is known and mature. Sealed Air would like to identify materials or processes which promote movement of oxygen along one surface of a film.
When producing a hermetically sealed package for respiring products, the packaging film may directly contact the product that is sealed inside, thereby producing areas that are functionally blocked from a bulk atmosphere inside the package. Such blockage results in pockets of contact and non-contact with a film surface such that contact areas cannot equilibrate with the bulk atmosphere. Restricted equilibration affects perceived freshness quality, especially in product locations where films bridges between high and low product surfaces of a food product. If the surface of the packaging film can be treated or modified in some way to promote gasses, particularly oxygen, to travel along the film surface within regions of direct contact between the film and substrate, then all areas under film will experience the same bulk conditions.
Sealed Air is interested in thin film materials or in processes that can be applied to existing thin films that promote lateral diffusion of oxygen on one side of the film. While there are known methods for achieving this effect, those known approaches affect film transparency, causing treated films to have a cloudy or milky appearance.
Compelling proposals will show data or images supporting this capability. To be considered, proposed approaches must be demonstrable.
Possible approaches include, but are not limited to:
We are looking for a concise abstract/executive summary. The proposal should briefly describe the technical approach and provide information on technology performance, background and description of the responding team and their related experience. To Respond, please use the red Respond button.
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