Pulpac to unveil fibre-based caps at Interpack 2026

Pulpac will present a new generation of fibre-based caps at Interpack 2026, marking its expansion into closures—one of the most widely used components in packaging.

The caps, currently under development, are designed to replicate the functional and tactile properties of plastic closures while offering a fibre-based alternative. Their introduction signals a move by Pulpac to extend its Dry Molded Fiber technology into more technically demanding applications.

Caps and closures represent a significant segment within packaging, used across multiple industries and formats. By targeting this category, Pulpac aims to address a key area in the transition towards more material-aligned and circular packaging systems.

According to the company, early testing has shown promising results across performance parameters such as thread engagement, opening and closing functionality, sealing structures, and overall user experience. The caps also offer design flexibility, including the ability to differentiate between interior and exterior surfaces for both functional and branding purposes.

The development is being carried out in collaboration with PA Consulting and with input from industry stakeholders, including machine partner Optima. The project is also linked to the Bottle Collective initiative, which explores fully fibre-based bottle systems involving multiple global brand owners and packaging companies.

Pulpac said early versions of the caps have already been produced and tested in real-world environments as part of ongoing packaging evaluations, reflecting increasing interest across the value chain in fibre-based alternatives to plastic closures.

Charlotte Walldal, chief technology officer at Pulpac, said the development builds on the company’s focus on advancing both current and future packaging solutions, adding that the caps challenge conventional expectations of fibre materials in terms of look, feel, and performance.

At Interpack 2026, the caps will be showcased at both Pulpac’s and Optima’s stands, alongside existing Dry Molded Fiber applications and ongoing developments.