Aluminum Foil – Ultimate Barrier for Product Freshness

 

       Aluminum foil is a high-barrier material ideal for packaging that demands protection from moisture, light, and oxygen.

 

🛡️  Blocks air, light & contaminants

 

⚙️ Easy to form, fold & laminate

 

📦 Perfect for snacks, coffee, pharmaceuticals & more

 

♻️  Lightweight, recyclable & food-safe

Aluminum Foil Laminations and Applications

Typical Lamination Structures

PET/Aluminum Foil/PE:High-barrier packaging for liquids and snacks.


PA/Aluminum Foil/CPP: Retort pouches suitable for high-temperature sterilized foods.


PET/Aluminum Foil/CPP: Ready-to-eat meal pouches with high-temperature resistance and freshness.


Aluminum Foil/EVOH/PE: Long-shelf-life foods, such as sauces and powdered milk. 

Functions of Aluminum Foil in Laminations 

Barrier Performance: Whether used as an outer, middle, or inner layer, aluminum foil provides excellent protection against moisture, oxygen, and light. 

Heat-Sealing Capability: Aluminum foil combined with PE or CPP ensures secure heat seals. 

Protection: As a middle layer, aluminum foil is shielded from external creasing or wear, while adding structural strength to the packaging. 

Versatility: Multi-layer designs incorporating aluminum foil adapt to a variety of product requirements, from food to pharmaceuticals. 

Aluminum Foil as the Outer Layer

Structure:

Outer Layer: Aluminum Foil for gloss, excellent barrier properties, and printability.
Inner Layer: PE or CPP for heat sealing.

Applications:

Used for visually appealing and protective food packaging, such as coffee bags, snack pouches, and candy wraps.

Features:

Provides a premium printing surface, enhances branding, and ensures strong barrier performance.

Aluminum Foil as the Middle Layer

Structure:

Outer Layer: PET or BOPP for high strength and printability.
Middle Layer: Aluminum Foil for barrier protection against light, oxygen, and moisture.
Inner Layer: PE or CPP for heat-sealing and flexibility.

Applications:

Ideal for long-shelf-life food (e.g., powdered milk, condiments) and pharmaceutical packaging, especially for products requiring superior barrier performance.

Features:

Aluminum foil as the middle layer maximizes barrier efficiency while protecting the foil from external damage, such as creasing or oxidation.

Aluminum Foil as the Inner Layer

Structure:

Outer Layer: PET or BOPA for strength and printability.
Middle Layer: EVOH or PE for enhanced barrier performance.
Inner Layer: Aluminum Foil for direct contact with the product, providing complete barrier protection.

Applications:

Commonly used in vacuum packaging, pharmaceutical blister packs, and high-end food custom packaging.

Features:

Directly protects the contents, making it ideal for sensitive products requiring ultra-high protection.

Why choose this lamination film?

AL film is the best choice when you need an enhanced moisture barrier film. Fats, oils, vitamins, and chemicals can lose their original properties due to oxidation. Pet food and snacks can get soggy from contact with water, as cookies can get dry and hard from water depletion. UV light can deteriorate aroma and flavors from teas and spices. These features are key requirements for optimal shelf life, especially when dealing with products that spoil easily as baby food and freeze-dried foods.

There are several considerations to make when choosing the ideal film for your packaging:

Application

Barrier level required

Moisture and oxygen barrier

Sealability

Design aspects

Costs

At SF POUCH, we are aware it is challenging to choose your food packaging film. That's why we have specialists always available to help you make the right decision for your brand. 

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