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FOLDS: Fold and Sustain

Updated: Aug 31

Protective packages are designed to withstand the many rigors of the distribution (e.g. sudden impacts and sustained load). Flexible protective packaging is one of the fast-growing product segments and a great opportunity to Finnish economy. Cushioning structures based on simple tessellation designs are not yet common and neither there is a roll-to-roll folding technique for paper webs. The main goal of the FOLDS project is to find flexible protective packaging solutions, potential origami-based symmetric tessellation types suitable for industrial roll-to-roll folding process and demonstration of potential tessellations. The project will create scientific understanding of the mathematical, physical and mechanical interactions involved in cellulose-board tessellations and generate fundamental knowledge, experimental results and demonstrative 3D structures made from cellulose.

Main results

  • Suitable designs for highly flexible and multifunctional folded structures have been discovered to be used as a cushioning material and as a protective surface in packaging.

  • Design of the tessellation pattern is the key for successful structures. In addition, local extensibility of the material was recognized as a key property for successful folding event of papers and boards.

  • A framework for mechanical performance of self-supporting paper-like Miura structures was developed (Mechanics of Advanced Materials and Structures, 2022)

  • A basis for identifying qualitative design-driven folding parameters and their quantification via numerical simulations was developed.

  • A folding nip prototype was developed.

Publications (see also links below the news item)

Research Project Managers

Kirsi Peltonen, Aalto

Jarmo Kouko, VTT

Project status

Funded by FinnCERES 2018-2021.

The work continued as a Business Finland-funded Co-Creation project and is currently continuing in the Business Finland-funded Co-Innovation project "Novel folding technology for light-weight design structures and protective packaging".

In addition, related work is continuing in the Cellugami project funded by Aalto Bioinnovation Center.

Photos: Valeria Azovskaya. Licensed under CC BY-SA 4.0

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