Bio and fibre-based Stand-Up Pouch

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The food packaging market is the focus of research and development by INN-PRESSME’s Finnish partner VTT. Food packaging, which protects against external influences such as moisture and light, is still mainly produced from numerous non-sustainable fossil materials. Multiple layers of plastics or metals make it impossible to recycle or biodegrade them. As part of the INN-PRESSME project, Finnish researchers and developers have further developed the production of stand-up pouches using biological nanofibres. The aim is to replace all fossil materials in the packaging and produce it in such a way that it can be easily recycled.

Together with the INN-PRESSME partners WALKI, FRAUNHOFER ISC and RISE, they ensure production safety and the requirements of industrial production sizes. The SUTCO coating machine specially developed by VTT took the team a big step forward. The SUTCO process has so far been used to test PLA-X, cellulose nanocrystals (CNC) biobased hybrid nanomaterials on thin paper. In the so-called thin-film coating processes, the results indicate that the industrial quantities can be achieved.

Facts & Figures

  • Multilayer coating done on two different base papers using: 
    • PLA-X (crosslinkable PLA-based aqueous dispersion)
    • CNC (cellulose nanocrystals)
    • bioORMOCER® (biodegradable inorganic nanoparticles stabilized by biopolymers )
  • Traditional coating methods such as gravure coating can be used to apply these materials into multilayer structures
  • Low coat weight and coating thickness (below 12 g/m2 and 8 µm) for all three layers combined
  • Promising barrier properties at 23 °C/ 50% RH
  • OTR as low as 0.8 – 2 cc/(
  • Excellent grease and mineral oil barrier
  • Good heat-sealing properties

Related pilot lines

Process and data optimisation in the surface treatment concept

SuTCo (Surface Treatment Concept) is a versatile pilot-scale coating and film preparation line with several coating units (e.g. rod, cast, slot and spray). Various bio-based dispersions and polymers have been applied with a rod coating applicator on fiber-based substrates.

What we want to achieve:
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  • SMEs can enter the market 25% faster with optimized products.
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Quality improvement of biobased coatings and nanoparticle synthesis

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What we want to achieve:
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  • Through our experience, we can also scale up laboratory synthesis, so that we can also increase the TRL that have run through third parties.
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Increasing the available amount of cellulose nano crystals

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What we want to achieve:
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  • the pilot line aims to have a scalable process with a commercially relevant product to support decision making for production scale implementation.
Download pilot line pdf