The ROPP cap full form is "Roll-On Pilfer Proof Cap", which is a kind of tamper evident bottle cap. This kind of bottle cap is widely used in the packaging of alcoholic beverages and other liquid products to ensure the safety and integrity of the product during transportation and storage. Ensure that the packaged product has not been opened before sale and provide a certain sealing performance.

Structure of ROPP cap

- Cap body:

ROPP cap is usually round in shape with a certain height and thickness. The material of the cap is generally aluminum or other metal materials, which has good sealing and corrosion resistance.

- Liner:

The liner is usually made of polymer materials (such as polyethylene or polyurethane) and is located on the inside of the cap to enhance the sealing performance, prevent liquid leakage and reduce product oxidation.

- Threaded part:

The inside of the ROPP cap has a specially designed thread structure, usually in a serrated or beveled shape, which can bite with the thread of the bottle mouth when the cap is tightened to form a seal. This design allows the bottle cap to be rotated and produce a certain tearing effect when the bottle cap is opened, thus preventing it from being closed again.

- Anti-theft design:

An important feature of the ROPP cap is its anti-theft design. Usually there will be some marks or grooves on the cap, which will leave obvious signs of damage after opening. Consumers can judge whether the product has been opened by these signs.

Advantages of ROPP cap:

- Anti-theft: Due to its unique design, the ROPP cap can effectively prevent unauthorized opening and protect the safety of the product.

- Sealing: Good sealing performance can prevent liquid leakage and oxidation, and maintain the freshness of the product.

- Strong applicability: ROPP cap is suitable for a variety of bottle specifications and is easy to automate packaging on the production line.

Application field of ROPP cap:

ROPP cap is widely used in the packaging of products such as alcoholic beverages (such as wine, spirits), beverages (such as juice, carbonated beverages), condiments (such as oil, vinegar), etc., and is one of the common packaging forms in the modern beverage and food industry.

The design of ROPP cap aims to provide a method that is convenient for consumers to use and can effectively prevent products from being illegally opened. Once the cap is properly applied to the bottle, any attempt to remove it will cause the anti-tampering ring to break, which provides additional security for consumers. In addition, ROPP caps can also be customized with different colors, patterns and anti-counterfeiting features as needed, enhancing the market appeal of the product.