General food aluminum foil bags are made of a composite of PET, NY, AL, and PE materials, while high-temperature retort pouches are made of a composite of PET, NY, AL, and CPP materials.
Food aluminum foil bags are made of aluminum foil composite material and are used in multiple food industries. They are also known as "food bags" or simply "aluminum foil bags." Made of aluminum-plastic composite material, they offer high-temperature resistance and other special properties. Food aluminum foil bags are packaging products made through dry lamination of high-barrier aluminum alloy materials. They are extremely thin sheets formed by repeatedly rolling high-purity aluminum, making them excellent heat conductors and light shields. The aluminum foil content in these bags can reach over 99%. Food aluminum foil bags can be used vacuum-sealed or gas-filled. Under high vacuum conditions, aluminum vapor is deposited in points onto various base films to form a thin film, typically with a thickness of 300A to 400A.
Food Aluminum Foil Bag Materials:
General food aluminum foil bags are made of a composite of PET, NY, AL, and PE materials. High-temperature retort pouches are made of a composite of PET, NY, AL, and CPP materials.
The core barrier layer completely blocks oxygen, moisture, light, and odors, significantly extending shelf life and maintaining the crispness and flavor of food.
High-end potato chips, meat products, coffee, mooncakes, and other products that need to be protected from light and moisture.
Inner layer
PE/PP
For direct contact with food, it has excellent heat-sealing properties and airtightness, ensuring that the packaging is sturdy, safe, and non-toxic. PE is soft and has good moisture resistance; PP has stronger heat resistance.
All types of snacks, especially suitable for products that require high-temperature baking or heat sealing.
Composite structure
PET/Al/PE、PET/PE、BOPP/PE etc.
Combining the advantages of various materials, it achieves high strength, high barrier properties, easy sealing, and good visual effect, making it the mainstream stand-up pouch structure.
Widely used in commercial stand-up zipper bags, such as those for roasted nuts, dried fruits, and pastries.