EVOH Resin Drives the "Freshness-Logistics-Recycling" Closed-Loop Ecosystem
As the global food supply chain accelerates its green transformation, EVOH (ethylene-vinyl alcohol copolymer) is emerging as a key material for building a closed-loop ecosystem that integrates preservation, logistics, and recycling, thanks to its high barrier performance, recyclable design potential, and innovative technology advancements.
I. Freshness Technology Upgrades: From Passive Protection to Active Preservation
Ultra-Low Oxygen Transmission Rate (OTR): EVOH film achieves an OTR as low as 0.1 cc/m²·day at 0% humidity, effectively inhibiting fruit and vegetable respiration and meat oxidation, extending chilled beef's shelf life from 7 days to 21 days.
Humidity-Adaptive Design: Toray in Japan has developed an EVOH/nano-SiO₂ composite film that maintains an OTR of 1.5 cc/m²·day in 80% RH environments, making it ideal for high-humidity fresh produce storage scenarios.
II. Logistics Efficiency Optimization: Meeting End-to-End Supply Chain Needs
Wide Temperature Stability: EVOH pellets maintains stable barrier performance across a temperature range of -40°C to 120°C, supporting frozen storage, ambient transport, and microwave reheating scenarios, reducing the risk of cold chain disruptions.
Lightweight Carbon Reduction: Seven-layer co-extruded EVOH Oxygen barrier film (80μm) is 50% lighter than aluminum-plastic films, reducing per-box logistics carbon emissions by 18% (according to Amazon Logistics data).
III. Recycling System Development: From Linear Consumption to Circular Regeneration
Bio-Based and Degradable Solutions
Plant-Based EVOH: Mitsubishi Chemical’s BioEVOH™ contains 30% plant-based ethylene alcohol and achieves over 90% degradation within 180 days under composting conditions, earning EU OK Compost certification.
Enzymatic Recycling Technology: Covestro’s Evocycle® CQ film decomposes into monomers under specific enzyme catalysts, achieving an EVOH polymer recovery rate of over 85%, making it suitable for organic fresh produce packaging.
As a core EVOH supplier, we are deeply engaged in building this closed-loop ecosystem. The EVOH closed-loop model is not just a technical revolution but also a value reconstruction opportunity across the industry chain. Through material innovation, scenario adaptation, and ecosystem collaboration, EVOH granules will continue to lead the packaging industry toward a high-efficiency, low-carbon, and sustainable future.
