There are two types of aluminum foil available based on their shape, namely roll aluminum foil and sheet aluminum foil. The majority of aluminum foil that undergoes extensive processing is supplied in rolls. On the other hand, sheet aluminum foil is used only on select occasions, particularly for handicraft packaging purposes.
When it comes to aluminum foil, it's important to understand the different states it can come in. There are generally three types: hard foil, semi-rigid foil, and soft foil. Each one has its own unique properties and uses, making it important to choose the right type for your specific needs. Whether you're looking for something that's more durable and rigid, or something that's more flexible and easy to mold, there's an aluminum foil option that's perfect for you. So take some time to explore the different types of aluminum foil available, and find the one that works best for your particular project or application.
Aluminum foil that has not undergone annealing is known as hard foil. This type of foil may contain surface residues if degreasing has not been performed. Prior to printing, laminating, and coating, the hard foil must undergo a degreasing process. However, it can be used directly in forming operations.
Semi-rigid foil is a type of aluminum foil that falls between the strength and hardness of hard foil and soft foil. It is commonly utilized in processes that involve formation and shaping, thanks to its unique level of malleability. This material is widely used in the packaging industry, where it is used to protect various products from oxidation, light, and moisture. Its semi-rigid nature makes it easy to fold and form, making it ideal for a wide range of applications. Whether it's wrapping food, packaging goods, or protecting sensitive items, semi-rigid foil is an essential material for many industries.
Soft foil refers to aluminum foil that has undergone a complete annealing and softening process after the rolling stage. This specific type of foil possesses a soft and malleable characteristic with no traces of residual oil on its surface. Flexible foils find extensive application in various industries including packaging, lamination, and electrotechnical materials.