Mitsubishi Chemical Corporation (MCC) has developed a new coating technology that imparts gas barrier and oil-resistant properties to paper-based packaging, using its proprietary SoarnoL™ solution. The development is positioned as a PFAS-free alternative for food packaging applications, addressing growing regulatory concerns around per- and polyfluoroalkyl substances (PFAS).
The technology enables the simultaneous application of a SoarnoL™ ethylene vinyl alcohol copolymer (EVOH) solution and an anchor coating agent to paper substrates. This process forms a stable barrier layer that offers oil resistance and high gas barrier performance, even under high temperatures and folding conditions.
SoarnoL™, traditionally used in multilayer films and sheets for food packaging, is known for preserving food quality and extending shelf life. Its application in paper substrates marks a shift toward more sustainable packaging options, particularly as global restrictions on PFAS substances increase.
“While PFAS are commonly used to enhance the oil resistance of paper packaging materials, this new technology achieves oil resistance surpassing that of PFAS-based packaging materials even under high temperatures and folding,” the company stated.
The oil resistance of the new coating solution, combined with its compliance with hygiene standards for direct food contact, makes it suitable for applications such as packaging for fried foods and fast food items.
MCC plans to seek feedback from prospective customers and stakeholders as it targets commercialization in fiscal year 2026. The company will showcase the technology at the New Functional Materials EXPO 2026, scheduled from January 28 to 30 at Tokyo Big Sight.
This development aligns with MCC’s management vision “KAITEKI Vision 35,” which prioritizes food quality preservation and the provision of environmentally conscious materials as part of its sustainability goals.
PFAS, widely used for their durability and repellency, are now subject to international scrutiny due to their persistence and environmental impact.