Aluminum beverage cans have innovation

At present, the development of aluminum beverage cans has three major features, namely, easy-pull lids, special-shaped cans, and self-heating/self-cooling beverage cans. For a long time, although metal packagings such as aluminum beverage cans have been challenged by tinplates and PET materials, due to their light weight and recyclable advantages, they are still one of the major beverage packaging formats and have not only achieved stable development. And it is also constantly developing innovation.

Recently, coins packaging company developed "EPOL" (easy opening cover). This can lid is coated with a polymer-coated steel ring and heat-resistant aluminum foil, which can be used in existing filling equipment. The aluminum foil lid can be safely opened and is more suitable for the elderly and children.

Due to the competition of PET bottles, the demand for aluminum cans for beverages in the Japanese market has gradually decreased in recent years, but with the development of new aluminum cans, the demand for aluminum cans has started to rise. At present, companies such as Takeuchi Stamping Industry, Daiwa Manufacturing, and Mitsubishi Materials have entered the production of aluminum cans, and aluminum can lids developed by the Caisaki Manufacturing Plant have also been put on the market.

It is reported that Yamato Can Making and Wuken Stamping Industry Co., Ltd. began researching and developing aluminum bottles and cans in 1997. They have successively developed aluminum bottled beverage containers that maintain the superior performance of the preserved contents of the original aluminum cans and the easy recovery and resealing functions. The newly developed aluminum cans have the following features: (1) Compared with the original aluminum cans, the appearance is beautiful and stylish, and can be re-sealed, easy to carry, and easy to recycle; (2) Compared with PET bottles, light protection and barrier Significantly improve the sex, and reduce the weight of the tank by 30%; (3) The preservation performance of the loaded beverage is excellent, and the shelf life is prolonged.

There are some differences in the structure of aluminum bottles and jars in the Daiwa and Takeuchi stamping industries. The product of Yamato cans is 28mm in diameter (in order to form the caliber, the bottom of the can of two-piece cans is formed as the mouth); the lid, the can body, and the bottom lid are all made of aluminum; the weight of the aluminum cans (in 500ml bottles) For example), only 67% of PET bottles; the inside of the can and the bottom cover is covered with a polyester film, and the inside of the top cover is covered with a low density polyethylene. The difference between the Wune stamping industry and the Yamato can-making aluminum bottle cans is: the diameter is 38mm; the design of the tank body is smooth and easy to print. Mitsubishi Materials, after introducing the technology from the Takei stamping industry, has transformed the third production line of the Okayama Plant into a special production line for aluminum cans and entered the field.

According to the investigation of the Japanese Aluminum Can Recycling Association, due to the four companies entering the production of aluminum cans, the sales volume of aluminum cans reached 1.5 billion cans in 2002, which is 2.5 times that of the previous year. Based on this in 2003, Increase by about 20%.

The beverage packaging market is one of the largest markets for metal packaging. In order to improve the brand effect, in addition to using the silver-white properties of aluminum, the shape of aluminum cans is becoming more and more important. Therefore, manufacturers of metal forming equipment are also discussing aluminum can forming and embossing technologies. Because aluminum is easier to shape and achieve the desired shape, researchers are exploring aluminum can roll reel forming, spin forming and rheology techniques that will be used first in beer cans in the near future.

Experts believe that the new market share of aluminum cans will make new progress with the promotion of so-called “effective packaging” (“active packaSing in English”). Current coffee self-heating cans have been sold in supermarkets, and researchers are still developing cold drink cans for consumers to drink anytime, anywhere. Due to the application of new technologies for the development of aluminum cans, the demand for aluminum cans may further expand in the future, and new types of aluminum cans will be more attractive in the world.