Stora Enso has introduced two updates to its Trayforma tray board range, combining lower basis weights across the existing portfolio with the launch of Trayforma Brown, a new unbleached board designed for brands seeking a natural shelf appearance.
The company said the lighter Trayforma board delivers the same strength, forming performance and converting reliability as the current base board while using less raw material. According to Stora Enso, the reduction in material per tray is intended to improve yield across the value chain, while the lower board weight contributes to a reduced carbon footprint in production and transport.
Trayforma Brown has been developed to meet demand for tray packaging with a premium natural appearance. Stora Enso said the board offers the same technical performance requirements as the rest of the Trayforma family and is the first brown tray board to support oven heating, withstanding temperatures of up to 220°C with a transparent PET coating.
The product is also available with Stora Enso’s high-barrier BarrPeel solution for vacuum-skin packaging.
“For our customers, the natural look of brown board is increasingly relevant, but not at the cost of performance. With Trayforma Brown, they don’t have to make that trade-off. And with our advancements in lightweighting Trayforma, everyone in the value chain benefits from better yield,” said Jaana Tani, Technical Account Manager, Trayforma and Barriers at Stora Enso.
Both the lightweighted Trayforma range and Trayforma Brown are based on a three-ply structure incorporating CTMP in the middle layer. Stora Enso said this enables reduced basis weight while maintaining board thickness.
Trayforma Brown is positioned for applications including ready meals, bakery products, and chilled and frozen food.
The new Trayforma Brown and the lightweighted Trayforma range will be presented at Interpack 2026 in Düsseldorf from 7 to 13 May.
