Materialul capacului din aluminiu este utilizat pe scară largă în ambalarea produselor, deoarece aluminiul are o rezistență bună la oxidare, formând o peliculă densă de oxid pe suprafața aluminiului, care nu este ușor de ruginit și corodat. Capacele din aluminiu au proprietăți bune de etanșare, evitarea contactului dintre produs și lumea exterioară, și au un aspect frumos. Commonly used aluminum cap materials include 8011 folie de aluminiu, 3105 placa de aluminiu, 3104 placa de aluminiu, 1235 folie de aluminiu, 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, puterea, 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. în plus, 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, și 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. în plus, cost scăzut, good food safety and recyclability are also the advantages of aluminum anti-counterfeit cap material.