News

In the realm of flexible packaging, selecting the optimal film is a critical decision that balances performance, cost, and functionality. Three dominant materials—BOPP (Biaxially Oriented Polypropylene), BOPET (Biaxially Oriented Polyethylene Terephthalate), and BOPA (Biaxially Oriented Polyamide)—each offer distinct advantages and limitations as barrier packaging film solutions. Understanding their comparative barrier profiles is essential for engineers and brand owners designing high barrier packaging for sensitive products.

BOPA earns its status as a high barrier film not from a single attribute, but from a powerful convergence of inherent material science and advanced manufacturing. Its oriented crystalline structure creates a formidable labyrinth against oxygen and aromas, while its integration into multi-layer laminates overcomes its moisture sensitivity, resulting in a complete protective system.

Changsu's functional BOPA film offers excellent barrier properties, along with toughness, puncture resistance, and resistance to high-temperature cooking and low-temperature refrigeration. It not only helps lock in freshness and flavor, maximizing the preservation of the food's taste, but also prevents bag breakage and flavor transfer, ensuring the safe delivery of prepared meals to every table so people can fully enjoy their meals.

In daily life, unscientific food preservation methods not only cause waste and pollution but can even harm health. Food rots because components in the air, such as oxygen or microorganisms like bacteria, react chemically with certain components in the food. Extending the shelf life of food means slowing down the rate of this chemical reaction as much as possible. We can use many methods, such as temperature control, modified atmosphere packaging, sterilization, and vacuum sealing.

Changsu Vector Film® EHA® Freshness-Locking Formula boasts advantages such as good flexibility and high transparency, allowing for better display of the contents. Pet owners can clearly and intuitively see the meat, vegetables, and fruits inside the pet food, ensuring food safety and stimulating their purchasing desire, thus enhancing the consumer experience.

Food spoilage is primarily caused by oxidation and microorganisms, traditionally relying on chemical additives for inhibition. Now, physical preservation technology is changing the game. Taking Changpu EHA freshness-locking film as an example, it possesses ultra-high oxygen barrier properties (oxygen permeability <2cc/(m²·day·atm)), significantly delaying food oxidation and maximizing the preservation of freshness.

Changsu BOPA film is safe, non-toxic, and environmentally friendly, with superior overall performance. It is widely used in food, daily chemicals, pharmaceuticals, new energy vehicles and other fields, making it a leading film material for the future.

BOPA boasts excellent tensile and puncture resistance, easily withstanding various long-distance, high-load, and harsh environmental transportation and storage processes. It is not prone to brittleness and breakage even at -60℃, thus preventing shortened shelf life or spoilage and waste, greatly expanding the application range and scenarios for frozen foods.