Coated aluminum foil, as a core material in modern sealing technology, has become the preferred packaging solution in the food, pharmaceutical, and industrial sectors due to its multi-layer composite structure and functional design.

Bottle cap aluminum foil typically uses 8011 aluminum alloy (such as H14, H16, H18 temper) with a thickness range of 0.006-0.5mm. It combines high mechanical strength (tensile strength ≥170MPa) with excellent corrosion resistance, making it suitable for acidic or high-salt food environments.

Coating Types and Functions:

Corrosion-resistant Coating:
The surface is coated with blue, gold, or black anti-corrosion layers to enhance the foil's weather resistance, making it suitable for marine transportation or high humidity environments.

Heat Seal Coating:
The inner layer is composite PE, PET, or other heat seal materials, enabling fast sealing with the bottle neck. The sealing strength reaches 5-10N/15mm, preventing leakage.

Printing Layer:
Brand logos and anti-counterfeit codes are printed using screen printing or artistic painting techniques, enhancing product identification and anti-counterfeit capabilities.

Specifications for Aluminum Alloy Bottle Cap Material:

Core Advantages of Coated Aluminum Foil for Bottle Caps:

1.Excellent Sealing Performance:
Prevents air, moisture, and bacteria from entering, ensuring long-term freshness of the contents.

2.Anti-oxidation and Moisture Resistance:
Effectively isolates oxygen and moisture, extending shelf life, especially suitable for products that are sensitive to moisture or oxidation.

3.Temperature Resistance:
Can withstand temperature fluctuations from -40℃ to +150℃, making it suitable for refrigerated and hot-filled products.

4.Superior Printability:
The smooth surface is ideal for high-quality printing, enhancing the product's visual appeal.

5.UV Protection:
Effectively blocks ultraviolet rays, protecting light-sensitive ingredients, making it ideal for food and pharmaceutical packaging.

6.Good Mechanical Strength:
Resistant to abrasion and tearing, ensuring that the foil does not break easily during transportation or handling.

7.Environmental Friendliness:
Complies with food-grade standards, non-toxic materials, and recyclable aluminum foil, making it an eco-friendly packaging choice.

8.Corrosion Resistance:
Stays stable in acidic or alkaline liquids, suitable for various industries.

9.Self-adhesive and Adaptability:
Easily seals with bottle necks and is adaptable to various bottle materials.

10.Anti-static Properties:
Prevents static electricity from affecting the packaging quality, suitable for high-precision products.

Applications:

Bottle caps, seals, and small bottles in the pharmaceutical industry

"Anti-theft" caps in the pharmaceutical industry

Caps and containers in the cosmetics industry

Aluminum ROPP caps, PP caps, anti-theft caps for wine and beverages