Meeting PPWR Design for Recycling Standards: Plastic-Free Coatings and Re-pulpability in Food Packaging

The EU’s Packaging and Packaging Waste Regulation is already in force. Since August 12, 2026, its PFAS limits for food-contact packaging have applied across all member states. But for brands selling into Europe, a second deadline is approaching, and it may prove harder to meet: Article 6, the design-for-recycling (DfR) requirement.

From January 1, 2030, all packaging placed on the EU market must be designed for recycling and achieve a recyclability performance grade of C or higher—at least 70% recyclability. From 2038, the minimum rises to Grade B, or 80%. Packaging below Grade C is treated as technically non-recyclable and will be restricted from the market. The grading is based on material composition, component compatibility, and—critically for food packaging—the presence of barrier layers and coatings. A paper bag with a thin plastic laminate may perform well in use, but it fails the recyclability test because the plastic layer cannot be separated from the fibre in standard recycling streams. The same applies to fluorine-based oil repellents. They provide excellent grease resistance at low cost, but PFAS substances are now subject to strict limits under Article 5. Since August 2026, food-contact packaging must not exceed 25 ppb for any single non-polymeric PFAS, 250 ppb for total non-polymeric PFAS, and 50 ppm for total fluorine content. So packaging that relies on either plastic coatings or fluorine-based treatments will struggle to reach Grade C. The question is what can replace them.

Re-pulpability is the practical measure of whether a coated paper product can be recycled in existing paper mills. A repulpable coating allows paper to be broken down into fibres without dedicated separation equipment, meaning the material can enter standard recycling streams. Testing typically follows TAPPI UM 213, which evaluates whether a coated paper product can be repulped under neutral or alkaline conditions without leaving harmful residues. If a product passes this test, its coating does not compromise the recyclability of the fibre underneath. For brands exporting to the EU, re-pulpability is not just an environmental virtue. It is a compliance requirement. Packaging that cannot be repulped will likely score below Grade C and be non-compliant from 2030.

Several coating technologies are emerging as viable replacements for both plastic laminates and fluorine-based treatments. PHA-based bio-coatings use polyhydroxyalkanoate, a biopolymer produced through microbial fermentation. PHA-based aqueous barrier coatings are heat-sealable and provide oil, water, and grease barrier properties. Their key advantage is that they are repulpable, enabling full fibre recovery without special equipment. They are also biodegradable in marine, freshwater, and soil environments. Starch-based coatings derived from cassava or other renewable feedstocks offer another pathway. Recent research has shown that modified starch coatings can achieve Kit-12 oil resistance while remaining fully repulpable. A second coating cycle on recycled fibres successfully restored barrier properties, demonstrating closed-loop recyclability. Natural polymer coatings derived from seaweed and plant sources are also entering commercial trials. These are designed to integrate into existing paper recycling streams and can withstand hot liquids up to approximately 90°C, making them suitable for takeaway beverage applications.

Fujian Nanwang Environment Protection Scien-tech Co., Ltd. (Stock Code: 301355) has developed plastic-free coating technologies that address the DfR requirements directly. The company’s fluorine-free oil-resistant paper bags use biomass-based materials and advanced barrier coating technology to achieve oil resistance without fluorine compounds. Testing shows an oil resistance grade of Kit-6, effectively resisting 85°C hot oil penetration for 30 minutes. The product is lamination-free, allowing it to degrade naturally and remain compatible with paper recycling streams. Nanwang has also produced paper cup samples coated with PHA bio-based coating. Derived from renewable resources, this coating degrades naturally without requiring industrial composting and is repulpable, enabling full fibre recovery in standard recycling processes. These technologies align with Nanwang’s broader commitment to circular economy principles. The company has invested over RMB 90 million in R&D over the past three years. More than 80% of its adhesives and eco-friendly, water-based inks are formulated to ensure packaging remains fully recyclable and food-safe. Nanwang is also a drafting unit for two key group standards that define the technical roadmap for fluorine-free packaging: T/CSTM 01169—2024 and T/CNFIA 161-2022. These standards provide a benchmark for evaluating plastic-free coatings in food-contact applications.

The DfR requirements may not apply until 2030, but the decisions that determine compliance are being made today. Packaging redesign is not an overnight process—it involves assessing current formats, identifying alternatives, testing new designs, qualifying suppliers, and rolling changes across an entire portfolio. For brands exporting to the EU, the practical steps are to assess current packaging against DfR criteria and identify formats that rely on plastic laminates or fluorine-based coatings; request re-pulpability documentation from suppliers, including test results under TAPPI UM 213 or equivalent protocols; evaluate plastic-free coating alternatives such as PHA, starch-based, or natural polymer coatings, and request samples for performance testing; verify PFAS compliance through third-party testing, ensuring total fluorine content remains below 50 ppm; and build technical documentation demonstrating compliance with both Article 5 and Article 6 requirements.

The 2030 deadline is not far away. The technologies exist, and the standards are being defined. The work now is to contact our R&D team to test, qualify, and scale your sustainable packaging solutions before the market decides for you.