Aluminum cap material is widely used in the packaging of products because aluminum has good oxidation resistance, forming a dense oxide film on the surface of aluminum, which is not easy to rust and corrode. Aluminum caps have good sealing properties, avoiding contact between the product and the outside world, and have a beautiful appearance. Commonly used aluminum cap materials include 8011 aluminum foil, 3105 aluminum plate, 3104 aluminum plate, 1235 aluminum foil, etc. This article focuses on the 3105 aluminum sheet bottle cap material.
3105 aluminum plate belongs to 3 series aluminum manganese alloy, has good rust resistance, good deep punching effect, the strength, elongation and processing performance of the material to meet the automatic strength of the higher cap production process, in the processing will not appear creases or rupture phenomenon. Moreover, 3105 bottle cap material has flat board shape, no roll marks and no oil spots, which is convenient for later printing and makes the pattern clear and recognizable.
Compared with traditional plastic caps, aluminium sheet for bottle cap has good sealing, no leakage of wine, such as with PE pad covered with aluminum foil, its oxygen permeability is smaller and water permeability is lower, and 3105 aluminum alloy cap material has large area fine printing, multi-color printing, side roller printing, etc. A variety of technologies can be applied, with large design space, easy color matching, good saturation and high gloss. In addition, low cost, good food safety and recyclability are also the advantages of aluminum anti-counterfeit cap material.