what is an aluminum foil seal?
An aluminum foil seal, also known as a induction seal, is a type of closure used to seal containers such as bottles, jars, and tubes. It is a thin layer of aluminum foil that is applied to the opening of the container and is typically sealed using electromagnetic induction.
The aluminum foil seal is designed to create a tamper-evident, airtight and leak-proof seal that provides protection to the contents inside the container. The seal works by creating a bond between the aluminum foil and the container using heat generated by an induction sealer.
When the container with the aluminum foil seal is passed through an induction sealing machine, an electromagnetic field is applied to the foil which generates heat. This heat melts the foil’s innermost layer, which is then bonded to the container’s rim or lip. This process creates a seal that is difficult to tamper with or break, ensuring the safety and freshness of the product.
Aluminum foil seals are commonly used in the food and beverage industry, pharmaceutical industry, and cosmetic industry. They can be found on a variety of products such as juice bottles, peanut butter jars, and skincare tubes.