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Clearer Packaging, Cleaner Planet: Tosaf’s Sustainable Antifog Innovations
Clarity in food packaging is not just a matter of aesthetics – it directly impacts consumer perception and product quality. When moisture builds up inside a pack, it reduces transparency, obscures the contents, and may even accelerate spoilage. For manufacturers and brands alike, maintaining clear visibility is essential for both shelf appeal and product freshness. And in a market increasingly driven by sustainability, finding long-term solutions that eliminate coatings and support recyclability is more crucial than ever.
Tosaf’s latest antifog innovations offer a highly effective, sustainable alternative to traditional surface coatings, integrated directly into the packaging material to deliver long-term clarity and reliable performance.
The Challenge: Moisture Buildup in Food Packaging
Fogging, caused by moisture condensing on the inner surface of packaging, leads to droplet formation that scatters light and reduces visibility. This not only compromises product presentation but can also shorten shelf life. For many polymers used in packaging sealing layers (like PETG), using internal antifog additives is a big challenge. Antifog coatings aim to address this, but they often come with limitations: added production steps, increased costs, use of non-recyclable materials, and potential regulatory concerns.
A New Approach for Built-In Antifog Performance
Tosaf’s FogFree™ portfolio uses a unique approach to develop masterbatch solutions for extremely challenging polymers. These antifog compounds prevent droplet formation by modifying surface tension and encouraging a uniform water layer.
FogFree™ EVA: Optimized for Sealing Films
EVA is commonly used in lidding films due to its sealing properties, but combining strong seal performance with high clarity and antifog behavior can be challenging. Tosaf’s FogFree™ EVA (AF9781EV) addresses this by offering:
- High transparency and optical performance
- Sealing Integrity – Minimal impact on sealing properties
- Excellent antifog efficiency at standard loading levels
- Full compatibility with blown and oriented film processes
- Streamlined production by eliminating post-coating steps
In lab tests, FogFree™ EVA was compounded into PA/PE/EVA structures and achieved strong antifog activity with no negative effect on seal strength, delivering shelf-ready films straight from the extrusion line.
FogFree™ EVA Performance Results: Immediate superior antifog performance maintained over time
FogFree™ PETG: A long-lasting antifog compound, the optimal alternative to surface coatings
PETG is increasingly used for lidding films due to its durability, clarity, and recyclability. However, its polar structure and high glass transition temperature make it more challenging for antifog additives to reach the surface effectively.
Tosaf’s FogFree™ PETG (AF9789ET) is specifically engineered to overcome these obstacles. Its advanced formulation ensures:
- Immediate antifog effectiveness
- Homogeneous additive distribution using 100% compound in a dedicated layer
- Excellent antifog performance for maximum clarity (E-level)
- No compromise on sealing properties or recyclability
- Seamless integration into existing PETG extrusion lines
FogFree™ PETG Performance Results: fast and excellent antifog performance maintained over time
Enhancing Sustainability Through Innovation
By eliminating the need for surface coating, FogFree™ helps reduce material usage, streamline production, and lower energy consumption. This built-in approach enables more resource-efficient manufacturing and supports the creation of fully recyclable mono-material packaging – helping our customers meet their sustainability goals while maintaining high standards.
FogFree™ Key Sustainable Benefits:
- Eliminates external coatings
- Reduces raw material use
- Enables mono-material recyclability
- Lowers energy consumption and simplifies production
Explore how FogFree™ can support your next packaging innovation.
Contact us to learn more about our antifog masterbatch solutions.