Food and beverageNewsProcess industries

Delfort and Henkel partnership presents barrier paper for temperature sensitive foods

Cold-sealable barrier paper for ice cream.
Image: Delfort

Delfort has introduced a thin barrier 302 specialty paper that ensures premium protection for ice cream, chocolates, candies and other temperature-sensitive items.

To ensure its papers can be efficiently and effectively cold-sealed Delfort partnered with Henkel to find the perfect cold seal coating solution.

With barrier properties including moisture, oxygen, aroma and fat resistance, Delfort said brands have a reliable paper packaging solution that ensures products remain fresh and protected. The paper is being positioned as a smart alternative to traditional materials, as well as aligning with consumer preferences and industry trends.

Paired with compatible cold seal coatings, such as those developed by Henkel, the paper provides protection against external elements, ensuring the taste, appearance and texture of foods.

Despite its lightweight design, the paper is strong, with flex-crack resistance that withstands the demands of handling and transportation. Free from any intentionally added PFAS and recyclable according to the CEPI method, it combines high functionality with sustainability.

Boasting a low moisture vapour transmission rate (MVTR) of less than 10, measured at 23°C and 85% humidity, the paper prevents moisture from penetrating the packaging. The low MVTR keeps products dry and maintains their texture and quality. This prevents freezer burn that can degrade texture and flavour, especially in items like ice cream bars. The specially designed barrier ensures that frozen foods do not become icy or dried-out over time.

A low MVTR is also crucial for other non-frozen food products like powdered foods, dry snacks, and baked goods that are highly sensitive to humidity changes.

With a low oxygen transmission rate (OTR) value of less than 30, the barrier paper restricts oxygen from entering the package. This is essential for products such as chocolates and nuts, preventing rancidity, preserving flavour and nutritional value. For non-frozen foods, a low OTR helps preserve the natural aroma of the product, crucial for maintaining the sensory experience of premium confectionery and snacks.

The paper can also withstand the rigours of packaging and handling, ensuring it doesn’t tear or open unintentionally, keeping products secure from production to delivery. Additionally, the release coating on top of the cold seal of the paper prevents the paper from sticking to itself during storage or processing, making it easy to work with and ensuring smooth operations on packaging lines. This combination of strength and non-blocking performance provides both reliability and convenience, so your products stay perfectly protected every step of the way.

Delfort’s barrier paper was optimally designed with a paper surface that makes it compatible with a range of cold seals from Henkel, each tailored for specific requirements of relevant flow pack structures,” explained Dr Freddy E. Boscán, general manager PD innovation flexible coatings at Henkel. “These cold seals promote circularity by being certified as recycling-compatible and enable sustainable packaging solutions that align with the industry’s shift towards a closed-loop economy.”

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