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Home > News > Packaging

New coating from Stora Enso helps minimize plastics in paper cups

Source：Adsale Plastics Network Date ：2021-12-09 Editor ：JK

UltraThinPE Tec is a new innovation from Stora Enso that reduces the share of plastic coating in foodservice board (FSB) and applications such as single-use paper cups. With the help of UltraThinPE Tec, Stora Enso has developed one of the thinnest polymer coatings for FSB products on the market.

This allows paper cup designs with less than 5% plastic, representing a step in helping packaging converters, brand-owners, and retailers meet their plastics reduction targets. The technology is presently used in the production of UltraThinPE coatings for Stora Enso’s Cupforma product range for paper cups.

UltraThinPE Tec reduces plastic coating weight by up to 40% when compared to Cupforma Natura products with 15 g/m² PE (polyethylene) or renewable PE Green coatings (bio-based polyethylene), therefore enabling a share of greater than 95% paperboard.

Stora Enso’s UltraThinPE Tec reduces the share of plastic coating in foodservice board.

Achieving a plastic share of less than 5% helps brand-owners meet the composite threshold for packaging in some European countries. As a result, UltraThinPE Tec coatings can significantly reduce extended producer responsibility (EPR) fees by as much as 75% in countries such as Germany.

FSB products with UltraThinPE Tec coatings can be recycled with paper or board depending on local regulations, collection, and sorting infrastructure. As one-sided, minimal-plastic coatings, they can also ease the recycling of FSB in standard recycling mills when combined with other paper and board packaging.

“UltraThinPE Tec enables brand-owners to further meet their sustainability targets, especially concerning plastics reduction, while maintaining the highest product hygiene and safety standards as in the case of paper cups,” stated Tuomas Puonti, VP, Head of Business Line LPB Fresh & FSB at Stora Enso.

For converters, Cupforma products with UltraThinPE Tec coatings perform similarly to materials with traditional polymer coatings. It offers good barrier performance, heat sealability, and fast implementation time. The coatings are produced at Stora Enso’s Imatra site in Finland and Forshaga site in Sweden.

Cupforma by Stora Enso is a renewable, low-carbon material for paper cups and is optimized for recycling. It includes Cupforma Natura for foodservice end-uses, like hot cups, and Cupforma Special for end-uses like ice cream cups and ice cream packaging. Cupforma Natura is recognized as a material-efficient product range for paper cups available and yields more cups from each tree.