Which Bottles are Aluminum Caps for

In the packaging material market, aluminum bottle caps occupy an important position with their excellent performance. Data shows that the market share of aluminum bottle caps in the global bottle cap market has been growing steadily, and the application rate in the fields of alcohol, beverages, and medicine has continued to rise.

Suitable for bottles made of various materials

Aluminium caps for glass bottles: In the fields of liquor, wine, oral liquid, etc., the combination of aluminum bottle caps and glass bottles is an ideal match. Taking Moutai as an example, its iconic aluminum cap adopts a twist-off design, combined with an internal gelatin gasket, which can not only withstand high-temperature steaming and sterilization, but also achieve zero leakage through the spiral structure. The thermoforming process of glass bottles is prone to cause errors in the size of the bottle mouth, but the elastic design of the aluminum cap can automatically compensate to ensure sealing.

Aluminium caps for plastic bottle: In the fields of cosmetics, medicines, etc., aluminum bottle caps are gradually replacing traditional plastic caps. For example, high-end skin care bottles often use aluminum-plastic composite caps, with an outer aluminum shell to enhance the texture and an inner plastic thread to ensure sealing. Compared with plastic caps, aluminum caps have stronger antioxidant properties, which can prevent cosmetics from oxidizing and deteriorating due to contact with air.

Aluminum caps for aluminium bottles: In emerging markets such as coffee and health products, all-aluminum packaging with aluminum bottles + aluminum caps has become the mainstream. For example, a 300-500 ml aluminum bottle with a silver sealing cap can achieve lightweight and improve corrosion resistance through anodizing. This combination can also be customized through laser marking to meet brand differentiation needs.

Functions of aluminum bottle caps

Pilfer proof

The anti-theft design of aluminium pilfer proof caps is based on the principle of mechanical fracture. For example, the integrated anti-theft aluminum cap is designed with a connecting block and an anti-theft ring. When it is opened, the clamp ring on the inside of the anti-theft ring will be rolled outward, forming a permanent fracture mark. This "one-time" design completely eliminates the possibility of counterfeiting by refilling, especially for high-end wines.

Technical anti-counterfeiting

There are mainly three anti-counterfeiting ways: Laser coding, Coating anti-counterfeiting and digital traceability. Some aluminum caps use temperature-variable coatings, and the pattern disappears when exposed to fire or high temperatures, and reappears after the temperature is restored; fluorescent coatings require specific light sources to identify hidden information.

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