Nature Valley is First in Snack Bar Category with 100% Recyclable Film

Those physical properties included the film’s ability to provide the needed barrier, run on existing packaging lines, seal properly, and provide puncture resistance. The biggest challenge, Cluskey shares, was developing the cold-seal/cold-seal release lacquer. “BOPP films have been specialized over the past several decades to receive and release from the cold-seal adhesive, and Printpack needed to tackle that challenge on a completely new substrate,” he explains.

The film, branded under Printpack’s Preserve™ platform, is an adhesive lamination made from overprint varnish/BOPE/ink/adhesive/metallized BOPE/cold seal. The metallized layer provides the barrier, which allows for the same six- to eight-month shelf life provided by the (non-recyclable) multilayer plastic film it replaces. Says Cluskey, printability is enabled by “a treatment at Jindal Films and on Printpack’s equipment.” The film is decorated using five-color extended-gamut flexo printing.

Both the new wrapper as well as the secondary paperboard carton that holds the product carry abundant messaging on what to do with the wrapper waste.To bring the film to market, multiple rounds of material testing were required to ensure it could run successfully on Nature Valley’s equipment. Dave McClain, Director of Sustainability for Printpack, says this is where the partnership between Printpack and the brand owner was critical. “The engineers at General Mills are incredibly knowledgeable and talented, as are the folks running the equipment,” he notes. “When things didn’t run exactly like the incumbent packaging, details on the ‘failure modes’ were required to make the necessary adjustments to the design of the package.”

After the new film was put through its paces, General Mills submitted the substrate for testing under The Association of Plastic Recyclers – Film Critical Guidance Test protocol, which determined the material was indeed eligible to carry the How2Recycle Store Drop-Off label on its packaging.

This is a significant milestone for the company, which for some time has championed increased recycling through its involvement with recycling-focused industry organizations. Its new packaging provides the perfect canvas on which to educate consumers on recycling via Store Drop-Off programs. Both the new wrapper as well as the secondary paperboard carton that holds the product carry abundant messaging on what to do with the wrapper waste.

“We are working with several industry partners to make sure consumers have the information they need to participate in Store Drop-Off recycling,” Wulff explains. “The two primary NGOs we are working with are The Recycling Partnership and the Wrap Recycling Action Program. Every recyclable Nature Valley Crunchy granola bar wrapper directs consumers to www.recycle4nature.com, which is the W.R.A.P. store drop-off directory to help consumers locate a program where they can drop off their recyclable wrappers and other eligible plastics.

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“Furthermore, Nature Valley has created an informational webpage at www.naturevalley.com/recycle4nature, directing consumers to more information such as what materials, beyond our wrappers, are Store Drop-Off recyclable and examples of aftermarket uses for polyethylene film [synthetic lumber/decking equipment among them].”

The new packaging launched in spring 2021. The environmental impact of the switch, says Wulff, will depend on the wrapper’s ability to inspire Nature Valley’s 100 million U.S. customers to begin using the Store Drop-Off system for all their recyclable films. At this stage, even conservative estimates point to significant success: If just 1% of Nature Valley’s customers start recycling 1 lb of film per person per year, 1 million pounds of plastic will be diverted from landfills annually.