Flexible Packaging Recycling: Quality Becomes the New Priority

Flexible plastic packaging is one of the most widely used packaging formats in food, consumer goods and industrial supply chains. It is also one of the hardest to recycle at scale.

A new report from the Alliance to End Plastic Waste puts this challenge under the spotlight. Instead of treating flexible packaging recycling as a simple question of collection volumes, the report argues that the next stage of progress depends on producing higher-quality recycled materials that converters and brand owners can actually use in demanding applications.

The message is clear: flexible packaging recycling will not scale only by collecting more material. It will scale when the recycling system is able to deliver consistent, reliable and marketable recyclate.

Why flexible packaging is difficult to recycle

Flexible packaging is technically complex. It can include polyethylene, polypropylene, PET, HDPE, LDPE, barrier layers, inks, adhesives and sometimes aluminium or aluminium oxide.

This material mix is useful for performance. It helps packaging protect food, reduce weight, extend shelf life and lower transport emissions. But the same complexity creates problems at end of life.

Thin films are difficult to sort. Multilayer structures can be hard to separate. Contamination from food residues, labels and mixed polymers can reduce the value of the output. As a result, much flexible packaging has historically been downcycled, exported, incinerated or landfilled.

That is why the industry is now looking more closely at advanced mechanical recycling systems.

The Alliance report: a 50,000-tonne recycling model

The Alliance to End Plastic Waste says its report provides a technical and economic assessment of how a 50,000-tonne-per-year advanced mechanical recycling plant could process discarded household flexible plastic packaging.

The study suggests that advanced mechanical recycling can support the production of higher-quality recyclates from flexible plastics. According to the Alliance, this could allow recycled content of more than 30% in demanding flexible packaging applications.

That point is important because recycled-content targets are becoming a commercial and regulatory priority. Under the EU Packaging and Packaging Waste Regulation, plastic packaging placed on the EU market will face stronger requirements on recyclability, recycled content and packaging minimisation in the run-up to 2030.

For brands, converters and recyclers, this means recycled content can no longer be treated as a niche sustainability claim. It is becoming part of compliance, procurement and packaging design strategy.

Mechanical recycling still has room to improve

Mechanical recycling is often viewed as the more established route for plastics recycling. It usually involves sorting, washing, shredding, melting and reprocessing plastic waste into pellets or flakes.

For flexible packaging, however, conventional mechanical recycling has often struggled to deliver the level of quality required for high-performance film applications.

The Alliance report argues that the solution is not simply to process more mixed flexible plastics at lower cost. Instead, recyclers need to move toward a market-pull model.

That means starting with the requirements of converters and brand owners, then designing sorting, washing, extrusion and quality-control systems around those specifications.

In practice, this could mean better feedstock control, more precise polymer separation, improved washing, deodorisation, filtration and stronger testing of final recyclate properties.

Quality-first recycling changes the business model

The traditional recycling model has often been volume-driven. The goal was to move as much material as possible through the system at the lowest possible cost.

Flexible packaging recycling needs a different approach.

If recyclate is intended for demanding film applications, quality becomes the central economic factor. Buyers need predictable mechanical properties, colour, odour, contamination levels and processability.

This changes the role of recyclers. They are no longer just waste processors. They become material suppliers.

That shift requires investment in technology, quality assurance and customer alignment. It may also require longer-term contracts between recyclers, converters and brands to reduce investment risk.

The role of EPR and policy support

The Alliance highlights extended producer responsibility schemes as one of the key enablers for scaling flexible packaging recycling.

EPR policies can help shift the cost of packaging waste management from municipalities to producers. If designed well, they can also reward packaging that is easier to recycle and support investment in better collection, sorting and recycling infrastructure.

This matters because advanced sorting and recycling systems are capital-intensive. Optical sorting, film handling, washing lines, extrusion upgrades and quality-control systems all require significant investment.

Without predictable demand for premium recyclate, project economics can become difficult.

That is why policy, procurement and market demand need to work together. Recyclers need confidence that higher-quality recycled materials will find buyers at prices that justify the investment.

Mechanical and chemical recycling are not the same solution

The report also recognises that mechanical recycling and chemical recycling may play complementary roles.

Mechanical recycling is generally better suited when the waste stream can be sorted, cleaned and reprocessed into usable material with acceptable quality. Chemical recycling may be considered for more complex or contaminated streams that cannot be handled effectively through mechanical routes.

However, the two technologies should not be treated as interchangeable. Mechanical recycling keeps polymer value closer to the material level, while chemical recycling often requires more energy and more complex processing.

For flexible packaging, the most practical route may involve using advanced mechanical recycling wherever quality can be achieved, while reserving chemical recycling for fractions that cannot realistically be recycled mechanically. flexible packaging recycling

Why upstream sorting matters

One of the most important points in the Alliance report is the need to rethink where sorting takes place.

Material recovery facilities are not always designed to handle complex flexible packaging streams. Thin films can wrap around equipment, contaminate paper lines or be missed by systems optimised for rigid packaging.

The report suggests that some of the heavier sorting burden could move upstream to dedicated plastics recovery facilities. These facilities could be better equipped to separate flexible plastics by polymer type, colour and quality before sending them to advanced mechanical recycling plants.

Brownfield upgrades could also help reduce costs. Instead of building every facility from scratch, existing sites could be adapted with better sorting and processing technology.

What this means for brands and converters

For packaging buyers, the report sends a practical signal: recycled content targets will not be met only through public commitments.

Brands and converters will need to collaborate earlier with recyclers. They may need to redesign flexible packaging structures, simplify material combinations, improve recyclability and specify what kind of recycled content can be used in each application.

This is especially relevant for food and sensitive applications, where safety, regulatory compliance and material performance are more demanding.

For non-food flexible packaging, the path to higher recycled content may be faster, provided the supply of quality recyclate improves.

Flexible packaging recycling is moving from ambition to execution

The flexible packaging sector has spent years discussing circularity. The next phase is more practical.

The industry needs better feedstock, stronger sorting infrastructure, advanced mechanical recycling capacity, credible recycled-content claims and stable end-market demand.

The Alliance to End Plastic Waste report does not suggest that flexible packaging recycling is easy. Instead, it shows that the technology and operating model are becoming clearer.

The biggest barrier may no longer be whether flexible packaging can be recycled into better material. The bigger question is whether the value chain can align fast enough to make the economics work.

Outlook

Flexible packaging will remain important because it is lightweight, efficient and widely used. But its future will depend on whether the industry can solve the end-of-life problem.

Advanced mechanical recycling offers one route forward. It will not solve every flexible packaging waste stream, and it will not remove the need for better packaging design. But it can help create a more credible bridge between waste collection and high-value recycled-content applications.

As PPWR deadlines move closer, flexible packaging recycling is becoming a strategic issue for the whole packaging value chain.

The winners will likely be the companies that treat recyclate quality, packaging design and recycling infrastructure as connected parts of the same system.

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