Improved Cheese Packaging
New Expeco® packaging (Extrusion à Perméeabilites Contrôlées) is a paraffin-free package that combines a DuPont™ Bynel® adhesive resin layer and a DuPont™ Selar® PA 3426 barrier resin layer laminated on paper. Bynel® is used as a bonding agent and Selar® PA 3426 is an amorphous nylon resin that provides an oxygen and carbon dioxide barrier, as well as optical properties.
- Optimized cheese maturation.
- Full control of the water vapor/oxygen/carbon dioxide gas exchange.
- Product preservation without affecting flavor.
- Ability to fine tune barrier properties of the structure to comply with weight loss requirements.
Materials Selected and Why
Packaging converter, Lawson Mardon Morin, worked with DuPont to develop a permeable packaging film that would be ideally suited to soft cheese with surface mold. Bynel® and Selar® were chosen for this unique application because in combination they give the packaging film specific barrier properties and optimize the cheese maturation. Bynel® is compatible with a wide range of processes, including extrusion coating and features limited permeability to water vapor. Selar® PA 3426 provides oxygen and carbon dioxide barrier, as well as optical properties. In addition, its easy-to-extrude nature and thermoforming characteristics make it ideal for both film and sheet.
Packaging Converter: Lawson Mardon Morin – Sarrebourg, France
Food Company: Chamois d’Or Cheese from France