The aluminum foil on the bottle cap is a hot stamping material which is directly rolled into a sheet by metal aluminum. The hot stamping effect is similar to that of the pure silver foil stamping, so it is also called a fake silver foil. The aluminum foil applied to the bottle cap has excellent moisture resistance, shading and high barrier ability, and the net, the color is uniform, and there is no spot, and safety and hygiene are the most important.
Because of the safety and hygiene, the aluminum foil of the bottle cap is applied to various caps under the requirement of food grade aluminum foil. The medical cap material, the beer cap cover and the yogurt cap can all be made of aluminum foil. The cap material requires different performance. The aluminum foil alloy used, 8021 aluminum foil is suitable for capping materials with better deep drawing performance, and 8011 aluminum foil is often used for yogurt caps and the like.
8021 bottle cap aluminum foil
Aluminum foil can be divided into different aluminum foils according to different performance requirements.
The aluminum foil is divided into a single-sided aluminum foil and a double-sided aluminum foil according to the surface state.
Aluminum foil can be divided into thick foil, single zero foil and double zero foil according to the thickness difference.
1. Thick foil ("heavy gaugefoil"): a foil having a thickness of 0.1 to 0.2 mm.
2. "Medium gauge foil": a foil having a thickness of 0.01 mm and less than 0.1 mm/.
3. "Light gauge foil": The so-called double-zero foil is a foil with two zeros after the decimal point in the thickness of mm, usually aluminum foil with a thickness less than 0.01, ie 0.005~0.009mm Aluminum foil. In foreign countries, an aluminum foil having a thickness of ≤ 40 ltm is sometimes referred to as a "light gauge foil", and an aluminum foil having a thickness of > 40 btm is collectively referred to as a "heavy gauge foil".