Ethylene-Vinyl Alcohol (EVOH), also known as EVAL

EVOH is a thermoplastic copolymer with excellent barrier properties, making it a widely used material in the packaging industry, especially for food applications.

Properties:

• Gas barrier: EVOH is impermeable to gases such as oxygen, carbon dioxide, and nitrogen, making it ideal for packaging that needs to maintain product freshness over an extended period.
• Barrier to hydrocarbons and solvents: It also resists a wide range of hydrocarbons and organic solvents, making it suitable for beverages, pharmaceuticals, and cosmetics.
• Transparency: EVOH is clear, allowing consumers to see the product inside.
• Good mechanical strength: It offers strong resistance to tension, impact, and punctures.
• Processability: It can be processed using various methods, including extrusion, injection molding, and blow molding.
• Recyclable: EVOH is a recyclable material.

Applications:

• Food packaging: Bottles, jars, trays, films, etc., for a wide range of food products including meats, cheeses, fruits, vegetables, and beverages.
• Pharmaceutical packaging: Used in vials, ampoules, and syringes for medicines and pharmaceutical products.
• Cosmetic packaging: Suitable for personal care and cosmetic products, including tubes, jars, and bottles.
• Tubes: For products such as adhesives, sealants, and fillers.
• Coatings: Used as barrier coatings to protect metals and other materials from corrosion and degradation.
• Medical applications: Employed in dialysis membranes, catheters, and other medical devices.