Walki MONOMATERIAL SOLUTIONS
Less complexity, more circularity
High-performance single-material film solutions designed for circularity
Made for performance. Designed for recycling.
Walki’s monomaterial film solutions use a single polymer such as MDO-PE, XDPE, PE or PP laminate to simplify recycling, reduce resource use and deliver strong functional performance. Optimised for high barrier properties, flexibility and aesthetic printability, these films support both sustainability goals and real-world packaging demands.
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At Walki we apply monomaterial concepts across flexible packaging and barrier film applications. Our portfolio includes:
- MDO + PE (machine-direction oriented PE)
- MDO + Barrier PE
- XDPE + PE
- PE (monolayer)
- PP (monolayer)
- OPP + OPP
By relying on one polymer family instead of multi-layer mixed materials, we enable: easier sortation, more efficient recycling and better quality recyclate. These materials maintain good barrier, sealing and mechanical properties while streamlining production and logistics.
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Walki’s monomaterial film structures are designed from the ground up to meet the EU Packaging and Packaging Waste Regulation (PPWR) requirements for recyclability by 2030. Whether it’s MDO + PE, PE + PE or PP + PP, each construction is based on a single polymer family to ensure compatibility with established recycling streams.
By eliminating mixed layers and focusing on one material type, our monomaterial solutions make sorting and recycling straightforward, resulting in higher-quality recyclate and less waste. This design approach not only future-proofs packaging for evolving legislation but also supports brand owners in achieving circular-economy goals without compromising barrier performance, shelf life or visual appeal.
Every Walki monomaterial film — from high-barrier PE laminates to lightweight MDO films — is PPWR-ready by design, enabling a smooth transition to tomorrow’s fully recyclable packaging landscape.
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Our monomaterial film solutions are applicable across many sectors:
- Dry foods (nuts, cereals, snacks)
- Grains (rice, pastas, legumes)
- Meats and ham products
- Diary and lactose products
- Frozen foods (bakery, seafoods, ready-meals, vegetables)
- Household and personal-care flexible packaging
- Whatever the format—flowpack, doypack, stand-up pouch, pillow pouch, sachets, Walki’s single-material film platforms deliver performance and recyclability.
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At Walki we apply monomaterial concepts across flexible packaging and barrier film applications. Our portfolio includes:
- MDO + PE (machine-direction oriented PE)
- MDO + Barrier PE
- XDPE + PE
- PE (monolayer)
- PP (monolayer)
- OPP + OPP
By relying on one polymer family instead of multi-layer mixed materials, we enable: easier sortation, more efficient recycling and better quality recyclate. These materials maintain good barrier, sealing and mechanical properties while streamlining production and logistics.
-
Walki’s monomaterial film structures are designed from the ground up to meet the EU Packaging and Packaging Waste Regulation (PPWR) requirements for recyclability by 2030. Whether it’s MDO + PE, PE + PE or PP + PP, each construction is based on a single polymer family to ensure compatibility with established recycling streams.
By eliminating mixed layers and focusing on one material type, our monomaterial solutions make sorting and recycling straightforward, resulting in higher-quality recyclate and less waste. This design approach not only future-proofs packaging for evolving legislation but also supports brand owners in achieving circular-economy goals without compromising barrier performance, shelf life or visual appeal.
Every Walki monomaterial film — from high-barrier PE laminates to lightweight MDO films — is PPWR-ready by design, enabling a smooth transition to tomorrow’s fully recyclable packaging landscape. -
Our monomaterial film solutions are applicable across many sectors:
- Dry foods (nuts, cereals, snacks)
- Grains (rice, pastas, legumes)
- Meats and ham products
- Diary and lactose products
- Frozen foods (bakery, seafoods, ready-meals, vegetables)
- Household and personal-care flexible packaging
- Whatever the format—flowpack, doypack, stand-up pouch, pillow pouch, sachets, Walki’s single-material film platforms deliver performance and recyclability.
Walki Experts
Meet Juan Ángel Ruiz, R&D & Materials Manager at Walki Plasbel. In our Walki Experts series he discusses how Lamibel®MDO-PE laminate combines high barrier, mono-material construction and full recyclability into one package. Learn his view on how this innovation drives the packaging industry towards circular-first.
Where simplicity meets performance
A refined portfolio of PE- and PP-based structures engineered for clarity, stiffness, sealability and circularity. From MDO-enhanced stiffness to high-barrier PE laminates, each film is designed to do more with less — and recycle the right way.
MDO-PE + PE
Lamibel®MDO-PE is a mono-polyethylene structure designed for high stiffness, transparency, and recyclability while using less plastic overall. Advanced orientation technology aligns polymer chains to reduce film thickness and maximise performance. Ideal for frozen and chilled food packaging, Lamibel®MDO-PE offers an excellent balance of strength and sustainability, making it a PPWR-ready alternative to traditional multi-layer films.
MDO-PE + Barrier PE
Lamibel®MDO-Barrier PE combines machine-direction-oriented polyethylene with a high-barrier PE layer to protect against water vapour and oxygen while maintaining full recyclability. Approved by RecyClass as compatible with the flexible PE recycling stream, it delivers superior product protection and aligns with EU PPWR 2030 goals for circular, high-performance packaging.
XDPE + PE
Lamibel®XDPE combines the optical clarity of LDPE with the mechanical strength and high stiffness of HDPE, creating an ideal alternative to traditional LDPE. This structure enables downgauging, using less material without sacrificing performance. Available in matte or glossy finishes with low SIT and excellent transparency, Lamibel®XDPE is fully recyclable thanks to its pure PE composition and supports film reduction and resource efficiency.
PE (monolayer)
Lamibel®PE is a high-quality polyethylene film recognised for its excellent processability and seal performance. Available as a single layer or for lamination, it can be sealed on one or both sides and comes with a low Seal Initiation Temperature (SIT). The film offers good stiffness, transparency and sealability, making it ideal for a broad range of applications, including frozen and chilled foods. Lamibel®PE supports circular packaging goals.
PP (monolayer)
PP is a polypropylene monolayer film known for its excellent stiffness, optical clarity and easy processing. Ideal for snack and dry food packaging, it offers effortless opening and premium printability for strong shelf appeal. Available in matte or glossy finishes, it delivers both functionality and an elegant appearance while remaining fully recyclable within the PP stream.
OPP + OPP
A polypropylene-to-polypropylene laminate that delivers exceptional stiffness, gloss, and printability. This mono-family structure provides a crisp, easy-to-open feel with outstanding optical properties, making it a classic choice for snack packaging. Available in high-gloss or matte options, OPP + OPP ensures good shelf presentation and compatibility with PP recycling streams.
Print That Elevates the Product
Precision printing powered by Walki’s state-of-the-art facility
At Walki, outstanding packaging is more than material performance — it’s also the art of printing. Our teams work closely with designers, repro houses and production specialists to ensure every design translates flawlessly onto film. With state-of-the-art flexographic technology and meticulous prepress expertise, we deliver vibrant, precise and premium results trusted by leading food brands. Discover how collaboration, craftsmanship and innovation come together to create award-winning packaging.
“Our job is to make the designer’s vision technically perfect, right from the start.”
Ville Julin
Sales Manager – Consumer Packaging
What makes Walki Monomaterial film solution different
Walki’s monomaterial film solutions are engineered for circular performance at every stage. Built to meet PPWR standards, they use a true single-polymer structure designed for smooth recycling in standard PE systems. From high-barrier options to full in-house film and print capabilities, we deliver packaging that performs, protects and recycles the right way.
True single-polymer design
Unlike hybrid structures, our films use one dominant material
PPWR – ready
Designed to meet Europe’s future recyclability requirements.
Integrated production chain
From film extrusion to premium printing, all under one roof.
Barrier + recyclability combi
We offer high barrier performance while preserving recyclability by replacing mixed-materials.
Recycles the right way
Compatible with standard mechanical PE recycling plants.
Sustainability Focus:
Designed for circular performance
At Walki we believe packaging should support a resource-efficient and circular future. Monomaterial films reduce complexity, enable higher quality recyclates and help minimise waste, both packaging waste and food waste (via improved shelf-life). Our solutions contribute to lower CO₂ emissions, less raw-material use and simplified end-of-life processing.
Designed for circular performance
Our mono-material films are engineered for circular economy principles:
- Single polymer stream → easier sorting, less contamination.
- Reduced film thickness → less plastic overall, lower weight, less transport energy.
- High-quality recyclate → enabling second-life applications.
- Repeatable cycle → designed to be recycled again and again in a closed loop.
Designed for recyclability and beyond
By 2030, all plastic packaging within the European Union must be recyclable or reusable.
Flexible packaging made of monomaterials has become one way of achieving this goal.
Comparison with mixed-material or non-recyclable solutions
| Walki Monomaterial Film | Traditional Multi-material Film | |
|---|---|---|
| Number of polymer types | Single | Multiple (PP/PA/PET/PE etc) |
| Recycling stream compatibility | Streamlined (e.g., PE) | Complex, often non-recyclable |
| Material thickness / weight | Reduced through optimised structure | May require higher material use depending on structure |
| Sorting & contamination risk | Low | High |
| Functional performance (barrier, sealing) | High (via MDO/Barrier PE tech) | Variable, often must compromise recyclability |
| Circular economy alignment | Strong | Weak or limited |
| PPWR Ready | Aligned with future classes | May face restrictions |
| Repeatable cycle | Designed to be recycled in a closed loop | Chemical recycling required |
High Barrier. Pure PE. Designed to Recycle
RecyClass-Approved Barrier PE Laminate
Walki’s Lamibel® MDO-PE Laminate HB sets a new standard for circular packaging. This barrier structure has been officially recognised by RecyClass as fully compatible with the flexible PE recycling stream in Europe, proving that barrier performance and recyclability can coexist. Made with over 95% PE, the laminate protects food against oxygen, moisture and odours while avoiding the mixed-layer complexity of traditional films. A breakthrough that supports food safety, reduces waste and aligns with PPWR requirements for 2030 and beyond.
“This laminate shows that barrier and full recyclability can go hand in hand. It protects food, reduces waste and fits seamlessly into the PE recycling stream.”
Juan Ángel Ruiz
Head of R&D and Materials at Walki Plasbel
Where advanced extrusion meets premium printing
Extrusion engineered
for next-level packaging.
Walki brings together one of the most extensive extrusion capabilities in the industry with cutting-edge printing technology. With more than 26 blown-film extrusion lines, we produce high-quality PE films, MDO-PE structures and certified compostable films at scale. Our facilities are equipped with next-generation flexographic presses capable of water- and solvent-based inks, as well as state-of-the-art digital printing for fast, precise and visually striking results. From film extrusion to final print, every step is controlled in-house, ensuring consistency, speed and premium quality for the world’s leading brands.
A monomaterial film is a packaging film made primarily of one type of polymer (for example PE or PP). By using a single polymer family, sorting and recycling become simpler and more effective.
Lamibel® MDO-PE is a film where the outer layer is MDO-PE (machine direction oriented polyethylene) and the inner film is PE. The mono-material structure enables the entire film to be recycled through the PE stream while delivering high barrier, clarity and process performance.
The film offers excellent barrier to gases, moisture and odours, thereby preserving product quality and freshness for a longer period. That leads to reduced food waste and better product integrity.
Walki’s monomaterial films are designed for compatibility with standard recycling streams (e.g., flexible PE stream in Europe). They have undergone independent assessment (e.g., via RecyClass) and meet the requirements for recyclability.
Because legislation (such as PPWR), consumer expectations and recycling infrastructure all increasingly point to mono-material, recyclable packaging. Choosing monomaterial films now positions your brand ahead of the curve with sustainability, cost-effectiveness and circular economy readiness.
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