Material and product design for recyclable screw caps made of paper fiber

The project develops an improved concept for fiber-based screw caps with a top seal liner. The goal is to create a significant impact addressing the yearly 2500 billion of closures produced and to offer a more sustainable yet cost efficient and scalable solution.


Blue Ocean Closures AB, Karlstad University and Stora Enso AB.

Budget & time plan

The project’s total budget is 8,5 MSEK and the project runs during two years – between June 2022 and June 2024.