改革开放以来,我国啤酒和饮料工业发展迅速,随着人民生活水平的提高,各种形式的包装涌入市场,其中以易拉罐(二片式易拉罐、三片式易拉罐)为包装的饮料产品占有较大的市场份额。因为易拉罐包装优点明显:①优良的阻隔性能,可以阻隔气体,阻光,良好的保香性能,较长的货架寿命。②优良的机械强度,便于 Since the reform and opening up, China’s beer and beverage industry has developed rapidly. With the improvement of people’s living standards, various forms of packaging have been poured into the market, among which beverage products with cans (two-piece cans and three-piece cans) have been packaged. Big market share. Because of the obvious advantages of cans packaging: 1 excellent barrier properties, can block the gas, block light, good fragrant performance, long shelf life. 2 excellent mechanical strength, easy