Why Aluminum Foil is Superior in Flexible Packaging
Barrier Properties:
8mic aluminum foil is 0.008 mm thick and creates a barrier against moisture, oxygen, light, and contaminants. This improves shelf life of perishable foods (meat, dairy, etc.) by up to 18 months without oxidization or microbial growth.
Formability and Sealing:
The "O" (soft) temper of 8079/1235-O aluminum alloys allows for deep drawing and molding without wrinkles. This forms an airtight seal with materials such as PET or CPP laminate, which is critical in the manufacture of vacuum sealed packages and retort pouches .
Efficiency to Heat:
Aluminum has excellent thermal conductivity, which speed up heat sealing, and sterilization. Preparation of ready-to-eat meals or microwaveable packs, can get prior to vacuum, heating with steam, or other methods for food safety or quality of the end product.
Sustainability Edge:
Aluminum foil is 100% recyclable without losing quality; eating away at our dependency on plastic. Plus, its lightweight nature makes it easier to transport, and uses less resoureces than rigid packaging and that's an advantage.
The 8079-O vs 1235-O Alloy Comparison
Both alloys have applications that allow them to be used for flexible packaging; however, they have different compositions that guide their applications:
8079-O: Higher iron content (0.7-1.3%), improved puncture resistance and ideal for foods with sharp edges, or food with fat like frozen meats and cheese.
1235-O: Purity is required to be above or equal to 99.35% for improved ductility for shapes such as chocolate wraps or pharmaceutical blisters.
Applications of 8mic Alloys
| Product Type | Recommended Alloy | Packaging Form |
| Ready-to-eat chilled meals | 8079-O | Retort pouches |
| Coffee & items to snack on | 1235-O | Stand-up laminates |
| Pharmaceuticals | Both | Blister Packs |
| Sauces & condiments | 8079-O | Spouted pouches |
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Laminated Foil: The Best Multi-material Product
Laminated foil structures are produced when aluminum foil of 8 microns is laminated to film such as BOPP or PET; The combination can offer enhanced features for end-users .
Mechanical strength: The polymer layer adds to the durability of the foil, allowing it to be utilized for very high uses (i.e., can be used in pet food bags).
Printability: Capable of providing high-quality branded print to the outer layer of the packaging for increased shelf appeal.
Cost-efficiency: Uses 30% less material than standard single layer products.
Jumbo roll attributes: Precision is everything
These rolls are produced at an industrial level (width range of 200-1,600 mm; core ID specs of 76/152 mm around a cardboard core) can consist of:
Tolerance control: Film thickness tolerance ±3%, width tolerance of ±1.0 mm.
Certifications: Certified for Food Safety & Worldwide Use [FDA assured, ISO 9001, and SGS].
Packaging: All foils are enclosed in wooden crates with desiccant packaging to prevent corrosion during shipping.
Alloys of Jumbo rolls of 8mic food packaging foil, notably, 8079/1235-O laminated flexible packaging foil, have been and will continue to be the 'go to' product in food supply chains. This flexible packaging foil allows food supply chains to offer their increasingly environmentally conscientious consumers improved sustainable high-barrier solutions. Their ability to galvanize value-adding innovation then reach consumer's table in a responsible way, informs food supply chain operators to go forward with continued re-engineering and inspiration.
