Aluminum ROPP caps for for carbonated drink bottles (with TPE liners) for carbonated beverage bottles excel in sealing, environmental friendliness, opening safety and high-temperature adaptability, making them an ideal choice for carbonated beverage packaging, especially suitable for products requiring high-temperature sterilization and internal pressure resistance. Aluminum ROPP caps also feature anti-counterfeiting and leak-proof functions. Their design allows users to clearly feel the opening of the cap, thus improving product safety and credibility.

Common sizes for aluminum ROPP caps with TPE liners for carbonated beverage drink bottles are concentrated around 28mm, and they are primarily used in beverage packaging.

- Aluminum cap body

Strong sealing: The aluminum material is rolled and formed to tightly interlock with the bottle neck threads, forming a reliable seal that effectively prevents gas leakage and deterioration of the contents.

Corrosion resistance: The aluminum surface can be oxidized or coated to resist the acidic corrosion of carbonated beverages, extending shelf life.

Recyclability: Aluminum can be recycled indefinitely, meeting the needs of a circular economy.

- TPE Liner

Non-toxic and environmentally friendly: TPE (thermoplastic elastomer) is FDA and other food-grade certified, free of PVC, plasticizers, and other harmful substances, ensuring safety in direct contact with beverages.

Excellent sealing performance: The soft and elastic TPE liner tightly conforms to the inner wall of the bottle opening, forming a double-sealed barrier, especially suitable for the high-pressure environment of carbonated beverages.

High temperature resistance: TPE can withstand 121℃ high-temperature sterilization (30 minutes) or 85-100℃ pasteurization, meeting the packaging requirements of high-temperature sterilization products.

No odor residue: No odor is generated during processing, avoiding contamination of beverage flavor.

Characteristics of aluminum ROPP caps for for carbonated drink bottles:

- Anti-theft and anti-counterfeiting

Indicative tamper-evident design: Once opened, the cap or tamper-evident ring breaks and cannot be restored, clearly indicating whether the product has been opened.

Multiple anti-counterfeiting methods: Brand protection can be achieved through QR codes, laser engraving, special textures, etc.

- Easy opening and resealing

Torque control: Easy opening is achieved by adjusting the friction between the cap and the bottle opening (e.g., child safety caps require specific torque).

Resealable: Some designs support multiple tightening cycles, allowing consumers to conveniently store unfinished beverages.

- Pressure Resistance:

Adaptable to carbonated beverage characteristics: The TPE liner and aluminum structure can withstand the carbon dioxide pressure released from carbonated beverages (e.g., beer needs to withstand 90 PSI pressure for 1 minute), preventing cap bursting or leakage.

Application scenarios of aluminium ROPP caps with TPE liner:

- Carbonated beverages:

Beer, soft drinks, soda water, and other carbonated beverages require strict sealing to prevent gas escape.

Example: A certain brand of beer uses a 28mm ROPP aluminum cap + TPE liner, achieving 100% sealing compliance after pasteurization at 85℃.

- High temperature sterilization products:

Beverages requiring high-temperature cooking, such as bird's nest, ready-to-drink coffee, and dairy products, can withstand temperatures up to 121℃ without deformation thanks to the TPE liner.

- High-end beverage packaging:

Non-carbonated beverages such as mineral water and juice, using exquisite printing and multi-color printing to enhance product quality.

When selecting aluminum ROPP cap for for carbonated drink bottles, it is recommended to refer to the specific bottle design and production requirements to ensure that the caps can perfectly fit the bottle opening and meet the requirements for sealing and leak prevention.