A Peel-Off cap consists of the following main parts:
- Ring: It is the circular metallic part that fits on the rim of the container. The ring provides the structure and support needed to hold the lid in place and ensure a tight seal.
- Aluminum foil: A thin, flexible aluminum foil that is sealed to the ring by a heat-sealing process. This film acts as a barrier to protect the contents of the package and maintain its freshness and quality.
- Polypropylene or other heat sealable material layer: This layer is located between the ring and the aluminum foil, and allows the foil to adhere to the ring efficiently and securely during the sealing process.
- Tongue: A small tab, usually made of plastic, which is attached to the aluminum foil. The tab makes it easy to open the Peel-Off cap by pulling on it, allowing the foil to be detached from the ring and access to the contents of the container.
These parts work together to provide an airtight, easy-to-open closure on metal containers, making Peel-Off closures a popular choice in the food and non-food packaging industry.
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