A Better Framework for Developing Sustainable Flexible Packaging

Published: June 30, 2026

By Natalie Kaczorowski, Fresh-Lock® Business Development Manager

While sustainability may feel less prominent in today’s headlines, it remains a defining priority for the flexible packaging industry. Regulatory pressure, retailer expectations, and long-term environmental commitments continue to shape how packaging is designed, produced, and evaluated. Over the past several years, increasing concerns about the environment, waste, and greenhouse gas have led converters to advance their processes and opt for sustainable packaging solutions.

With a clear advantage over rigid formats, a flexible pouch requires less material, creates less weight, and may take up less space than a rigid container, thus helping to reduce the environmental impact of the supply chain. In addition to these innate source reduction benefits, the technology behind flexible packaging has advanced to make fully recyclable and compostable options more attainable for converters. But in order to fully take advantage of these technological advancements, we first need a stronger infrastructure to support them. This includes greater consumer education about proper collection, as well as increased access to curbside recycling and composting.

Without the operational framework to ensure that packages are properly recovered, how can packagers offer solutions that legitimately reduce waste in practical, measurable ways? The answer starts much earlier in the process.

Sustainability metrics should be derived from the package’s entire lifecycle, including early design stages. Image courtesy of Fresh-Lock.

Move Beyond End-of-Life and Shift the Focus Upstream

When addressing sustainability, most packagers default to a flexible pouch’s end of life—will it go to landfill, be recycled, or perhaps composted? Sustainability metrics should derive from the package’s entire lifecycle, including early design stages. By optimizing material use, choosing innovative components, and rethinking design for the entire lifecycle, brands and converters have the power to reduce environmental impact while maintaining functionality.

Here are some strategic decisions that can be made during early-stage packaging design to immediately improve the sustainability of a converter’s offerings:

Simplify and Cut the Excess

For converters looking to reduce their environmental footprint and save on packaging costs, source reduction is a highly valued approach. As previously mentioned, the transition from rigid to flexible packaging can be one of the first steps a packager takes when prioritizing waste reduction at the source, but once the packaging is flexible there are additional ways to continue designing out waste.

“Right-sizing” a flexible pouch, for example, helps minimize the materials used in production and allows for improved product-to-package ratio. Right-sized packaging can help brands avoid consumer frustration with a more streamlined experience, while simultaneously helping converters consume fewer resources and use less energy in material production.

Beyond format, structure matters. Simplifying multi-material laminations into mono-material solutions where possible, can significantly improve recyclability and reduce confusion at disposal. When consumers are required to separate components or are unsure how to dispose of a package the likelihood of proper recovery drops. Promoting successful mono-material structures helps converters set the conditions for circularity, making it easier for consumers to dispose of the package properly. Designing simpler structures help increase the probability that consumers participate in recycling.

Choose Materials Strategically

Incorporating post-consumer recycled (PCR) materials is a meaningful next step towards improving circularity. PCR helps create demand for recycled materials, which is critical, because without strong end markets even well-functioning recycling systems struggle to sustain themselves.

As recycling remains a major focus for the packaging industry, PCR materials bring secondary life to any package and help make successful recycling significantly more impactful by keeping existing materials in use. Because consumer waste has a high chance of ending up in a landfill, the diversion of those materials into recycling centers to be chemically or mechanically broken down for reuse not only reduces the need for virgin resources, but extends the lifecycle of packaging materials.

Polyethylene derived from renewable sources delivers the same performance as traditional PE while reducing reliance on fossil-based inputs. Image courtesy of Fresh-Lock.

In addition to PCR, bio-based materials present another opportunity to reduce reliance on fossil-based inputs. Traditional polyethylene (PE) is derived from petrochemicals, but PE can also be made from renewable, bio-based feedstock materials, like plants. This process begins with a plant like sugarcane being fermented into bioethanol, converted into ethylene, and polymerized into a PE resin. Polyethylene derived from renewable sources delivers the same performance as traditional PE while reducing reliance on fossil-based inputs.

Since plants contribute to carbon negativity during their growth cycle by absorbing carbon from the atmosphere, PE that is made from such plants demonstrate enhanced lifecycle sustainability metrics. Additionally, similar to opting for PCR materials, bio-based packaging can help reduce converters’ use of nonrenewable virgin materials. Ultimately, material decisions should not be made in isolation. They must align with the full system in which the package will exist.

Design Flexible Packaging for Lifecycle Efficiency

While single-use packaging is common, reuse is a crucial component of the circular economy that often gets overlooked. Reuse can take on many different forms in the packaging industry, including models where the packaging is designed to be returned to the producer in lieu of being discarded. By putting the package (or parts of it) back into the production cycle, brands and converters can continue to use the package for its intended purpose without breaking it down and transforming it into something new. This solution would require store drop-off system, which is already used for flexible packaging that doesn’t qualify for curbside recycling.

When the infrastructure for return and reuse isn’t available, reclosability is an added feature that can also extend the use of a flexible pouch in the consumer’s home. Especially impactful for food applications, reclosable flexible packaging can help reduce food waste by helping maintain freshness after a package has been opened. And an added closure not only helps reduce food loss, it also helps minimize the need for single-use packaging and plastic wraps for repackaging purposes. Unlike packaging that cannot be securely reclosed, a pouch with a zipper or slider makes storage and access more convenient and reduces the reliance on secondary packaging.

The Converter’s Role in Driving Collaboration Across the Supply Chain

No single supplier can deliver a fully optimized sustainable package. To manage these early-stage design choices successfully, open collaboration between suppliers is essential, and converters have the critical role of maximizing this collaboration.

With visibility across materials, components, and processes, convertors are uniquely positioned to align stakeholders and drive system-level innovation. By facilitating early collaboration between film suppliers, closure manufacturers, equipment providers, and brand owners, converters can ensure that all components are designed to work together from the outset. This reduces downstream complexity, minimizes rework, and accelerates the development of viable, scalable solutions.

And because each of these individual suppliers invest heavily into their own research and development, converters have the advantage of being able to test new developments early and co-develop next-generation packaging solutions with confidence. By connecting experts across the flexible packaging industry, the converter can facilitate joint R&D conversations so suppliers can collaborate on new solutions that may not be achieved alone.

Sustainability Cannot Wait for Infrastructure to Catch Up

By enabling the exchange of expertise and insights across the full supply chain early on, converters are better positioned to integrate sustainability at every stage of development, and ensure all components function in a cohesive system. In a country where recycling and composting infrastructure is limited, this level of collaboration is key to discovering new ways the industry can keep materials in use for as long as possible, reduce reliance on virgin materials, and improve the application of new, renewable ones.