1 Overview of the Development of Aluminum Materials for Packaging and Containers
Aluminum is widely used in the food and pharmaceutical industries because aluminum is non-toxic, non-adsorptive, and resistant to fragmentation. It also minimizes bacterial growth, produces colorless salts, and can undergo steam cleaning. When the container and conveyor belts are to enter the heating or freezing zone, the low volumetric specific heat of aluminum can generate energy-saving value. The spark-free nature of aluminum is valuable for mills and other factories that are vulnerable to fire and explosion. The corrosion resistance of aluminum is also important when shipping brittle commodities, valuable chemicals, and cosmetics. Sealed aluminum containers designed for air, shipping, train shipments and truck shipments can be used to ship chemicals that should not be bulked.
The packaging industry has always been one of the important markets for the use of aluminum, and it has developed rapidly. Packaging industry products include household packaging materials, flexible packaging and food containers, bottle caps, hoses, beverage cans, and food cans.
Aluminum beverage cans are an example of successful application in the aluminum industry. The penetration of aluminum food cans is also accelerating. Soft drinks, beer, coffee, fast food, meat, and even alcohol can all be packaged in aluminum cans. Draft beer can be shipped in aluminium-clad aluminum drums. Aluminum is widely used in the manufacture of soft packaging bags for toothpaste, food, ointment and pigment hoses and pharmaceuticals. To sum up, the main forms of aluminum for packaging are:
1 Flexible packaging made of aluminum foil, used in food and pharmaceutical industries and cosmetics industry; 2 Semi-rigid containers made of aluminum foil (boxes, cups, jars, plates, small boxes); 3 Aluminum foil for domestic use and packaging 4 Sealing caps for metal cans, glass bottles and plastic bottles; 5 Rigid aluminum cans, in particular two full aluminium beer cans and soft drink cans (hard cans); 6 Composite foil containers; 7 Soft tubular containers 8 large rigid packaging containers, such as containers, coolers, beer barrels, oxygen bottles and LNG tanks.
The amount of aluminum used in aluminum cans in the United States was 650,000 tons in 1975 and more than 1 million tons in 1980. In 2005, US aluminum cans produced a total of 130 billion, consumed more than 100 billion, and consumed more than 2 million tons of aluminum. , accounting for about 41% of the country's total aluminum sheet and strip production (4.65 million tons), and exports accounted for about 13%, which is in a stable development period (an annual growth of 1% to 2%).
In 2005, the aluminum can material production and consumption in Japan was about 440,000 tons, including 140,000 tons of can lids and pull rings, and 300,000 tons of cans. It was also in a period of steady development (about 2% annual growth rate). In 2005, production of aluminum cans in Europe was around 1.2 million tons, 11.15 million tons in Korea, 11.15 million tons in Brazil, and about 100,000 tons in other countries. The annual growth rate of these countries is about 5% to 10%. At present, the total annual output of aluminum cans in the world has reached approximately 4.3 million tons, including 2.89 million tons of cans and 1.41 million tons of can lids and looping materials. The countries and regions such as the United States, Japan, and Europe have been in relatively stable development. Outside the period, China, Brazil, India and other countries are still in a period of rapid development. Therefore, the annual growth rate of the world will remain at more than 8%.
The history of aluminum cans in China is not long and the foundation is poor. However, in recent years, it has developed rapidly. In 2005, it reached 10.3 billion, with an average annual increase of 1715 percent. It is estimated that it will reach 18 billion by 2010 and will grow at a rate of 10% for several years. In 2005, there were 22 production lines of 16 can-making enterprises nationwide, with a total annual production capacity of 11.5 billion. It is expected that in the near future, China will not only be a major producer of aluminum cans, but also a major consumer of aluminum cans.
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