The project ran between June and December 2023.
CASSPAK (renamed Löven foams) is the next generation of biobased foams for sustainable packaging used to protect and cushion fragile goods. Using 0% detergents and 0% plastics, the major input for the production of Löven foams is the cellulose fibre reject (CFR) of the paper and pulp industry. The aim of the project was to validate that a combination of CFR and microfibrillated cellulose (MFC) in Cass’ proprietary foaming technology, at lab scale, will produce a 100% tree-based foam material for sustainable packaging. With a density of 0.03 g/cm3 and a thermal conductivity of 0.04 W/mK makes the foam material light weight with good insulation properties, comparable to commercially available packaging materials.
The potential hydrophobicity and good shape recovery are great properties for fresh food packaging. The use and value adding of the CFR in the production of Löven foams increases the sustainability and circularity of, not only, the paper and pulp industry but also the packaging industry.
Photo from the project.
Participants
Cass Materials AB (renamed Löven foams), Domsjö AB, Borregaard AS and HJ Freezing Solutions ApS.
Budget
The project’s total budget was 815 000 SEK.