Novel coating materials and methods with Stora Enso
Stora Enso, a leader in renewable materials, is developing new generations of bio-based and renewable food packaging solutions, that can not only preserve the food properties, but also enable recyclability and/or reusability of the packaging material. Therefore, we are looking into bio-based materials and surface treatment technologies from other industries as well to find the most groundbreaking innovations.
Many of the critical properties of food packaging are provided by barrier materials: they control the transmission of oxygen, humidity, grease, heat and aromas to name a few. At the same time, recyclability of food packaging materials is increasingly important for Stora Enso, its customers and consumers. While Stora Enso already has a wide range of bio-based barrier materials, we believe that there could be synergies between our current offering and other industries working on innovative materials and technologies for different coating properties.
The material solutions we are looking for would need to eventually fulfil food safety regulation but no previous experience from food packaging solutions is required. We also aim to maximize our packaging performance with minimum material use, in which different application methods or technologies could help. Our use cases differ from flexible packaging to home delivery of greasy foods, so bear in mind that we are looking for a broad variety of solutions, even those comprising inorganic compounds.
Your opportunity with Stora Enso
We want to replace fossil-based barrier components in food packaging by using innovative coating materials and state-of-the-art coating technologies. If you have something to offer in the field of food-safe, functional and sustainable packaging materials & technologies, please read more about our key focus areas below.
More about Stora Enso Biomaterials
The Biomaterials division meets the growing demand for the replacement of products made from fossil-based materials with bio-based solutions. We use all fractions of biomass, like lignin and cellulose, to develop new solutions. The division's offering includes a wide variety of pulp grades to meet the demands of paper, board, tissue, textile and hygiene product producers as well as materials from our side streams, such as tall oil and turpentine from biomass.
Examples of solutions we’re interested in
Novel biomaterial-based coatings
We are looking for high-performance (OTR < 1 and/or WVTR<1) and fossil-free coating materials to provide the required barrier properties for food packaging while reducing material consumption. Such coating materials may range from monomaterials to formulations and shall be applicable on paper-based substrates through technologies other than melt extrusion.
New application and coating methods
We are also investigating new technologies, processes, application methods or surface treatment concepts to construct barrier properties for existing substrates. We are hoping to find “out-of-the-box” approaches and methods not commonly used in the paper and board industry.
Low coat weight barrier technologies and materials
Low coat weight may enable the recyclability of packaging, even though the barrier material itself would not be fossil-free/recyclable. We are searching for new barrier materials or technologies for existing barrier materials that provide the required barrier properties with low (<2 g/m2) coat weight.
Lignin is the second most abundant forest-based material, and we see a potential for lignin in barrier packaging. Therefore, we are interested in lignin-based barrier solutions or lignin-derived barrier components. Such lignin-based solutions should eventually comply with food safety regulations and packaging recyclability demands.
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