Technical improvements in aluminum can manufacturing by Japanese companies

In recent years, due to the increase of PET bottles in the Japanese packaging market, the demand for aluminum cans used for drinks has gradually decreased. However, with the development of new aluminum bottles and cans, the demand for aluminum cans starts to rise again.

At present, companies such as Kunai Stamping Industry, Daiwa Canning and Mitsubishi Materials have entered the field of aluminum can production, and the aluminum bottle cap developed by Qaiqi Factory has also been put on the market at the same time.

It is reported that Daiwa cans, the two big companies in the bunay stamping industry a few years ago began to aluminum bottle research and development.

The beverage containers of aluminum bottles and cans with the functions of maintaining content quality and easy recovery and resealing were developed successively.

The newly developed aluminum can has these characteristics: first, compared with the original aluminum can, the shape is beautiful and can be resealed, easy to carry, easy to recycle;

Second, compared with PET bottles, the light avoidance and barrier properties are greatly improved, and the weight of cans is reduced by 30%. Third, the beverage contains excellent preservation performance, extended shelf life.

The structures of aluminum bottles and cans from Daiwa And Kunai stamping industries are also different.

The product diameter of Yamato tank is 28mm. In order to shape this diameter, the bottom of the tank is formed as the mouth part. The lid, tank body and bottom cover are all made of aluminum.

The weight of an aluminum bottle (take a 500ml bottle for example) is only 67% of that of a PET bottle.

The inside of the tank and bottom cover is covered with polyester film, the inside of the top cover is covered with low density polyethylene film.

The difference between Wunei stamping Industry Company and Daiwa cans company is that the diameter is 38mm, the tank design is smooth, easy to print.

Mitsubishi Materials, which introduced the technology from Takuchi Stamping Industries, has converted a third production line at its Okayama plant into a dedicated line for aluminum bottles and cans.

The packaging material market is one of the largest markets for metal materials.

In order to improve the brand benefits, in addition to the use of aluminum silver-white material properties, aluminum can shape is becoming more and more important, so metal forming equipment manufacturers are constantly studying aluminum can forming and embossing technology.

In addition, because aluminum is easy to shape and meets the requirements of the shape, developers are exploring aluminum can reel expansion molding, pressure molding and rheological molding technology, in the near future will be the first application in the sprinkling tank.