Metal packaging containers refer to thin-walled packaging containers made of metal sheets. It is widely used in food packaging, pharmaceutical packaging, daily necessities packaging, instrument packaging, industrial packaging, munitions packaging, etc. Among them, the number used for food packaging is the largest.
Because of its material characteristics, metal packaging has better compression resistance than general packaging, is convenient for transportation, and is not easy to break. Among the metal packaging containers, tinplate containers are very popular among customers because of their strong oxidation resistance, diverse styles and exquisite printing.
Metal bucket: a container with a larger capacity made of sheet metal
Capacity: 35L, 45L, 50L, 63L, 80L, 100L, 200L, 208L
Specifications: small opening barrels, middle opening barrels, pails, special-shaped top barrels, full-opening tapered steel barrels, full-opening barrels, straight-opening barrels, open-necked steel barrels, etc.
Metal materials used: hot-rolled steel sheet, cold-rolled steel sheet, cold-rolled galvanized steel sheet, aluminum sheet
Metal cans: small-capacity containers made of thin metal plates (sealed and unsealed)
Representative products: two-piece cans, round cans, aluminum beverage cans, steel beverage cans, round, oval, square, and other empty cans.
Metal materials used: aluminum alloy sheet, tinned sheet steel
Special-shaped cans: three-piece cans, round cans, beverage cans, food cans, gift cans, art cans, chemical cans and other miscellaneous cans. Metal materials used: tin-plated steel sheet, chrome-plated steel sheet
Metal aerosol can: a metal container composed of a gas-tight metal shell and valve that can withstand a certain internal pressure
Representative products: aluminum aerosol cans with round shoulder, slanted shoulder, step shoulder, tinplate aerosol cans (three-piece aerosol cans), straight cans, necked cans, etc.
Metal closure: a set of (species) devices added to the container, its purpose is to keep the contents in the container and prevent the contents from being contaminated
Representative products: barrel sealer screw type, pressure type, top pressure type, closed hoop type
Metal materials used: cold-rolled steel sheet, tin-plated steel sheet, chrome-plated steel sheet, aluminum alloy sheet
According to statistics, the reason why metal packaging containers are widely used is that they have many unique advantages:
① Good mechanical properties. Compared with other packaging containers, such as plastic, glass, and paper containers, metal containers have greater strength, good rigidity, and are not easy to break. Not only can be used for small sales packaging, but also the main container for large transport packaging.
② Excellent barrier properties. The metal sheet has better barrier properties than any other material. It has good gas barrier properties, moisture resistance, light-shielding properties, and fragrance retention. In addition, the sealing is reliable and can reliably protect the product.
③ It is easy to realize automatic production. The production history of metal containers has a long history, with mature technology and a complete set of production equipment, high production efficiency, and can meet the packaging needs of various products.
④ Exquisite decoration. The metal material has good printing performance; the pattern and trademark are bright and beautiful, and the produced packaging container is eye-catching, which is an excellent sales packaging.
⑤ Various shapes. Metal containers can be made into various shapes according to different needs, such as round, oval, square, horseshoe, trapezoid, etc., which not only meets the packaging needs of different products, but also makes packaging containers more varied and promotes sales.
Metal packaging is an important part of China's packaging industry, and its output value accounts for about 10% of the total output value of China's packaging industry. It mainly provides packaging services for the food, canned, beverage, oil, chemical, pharmaceutical, cultural goods and cosmetics industries. At present, China's demand for metal packaging has a very broad future, and the demand is relatively large.
From January to November 2007, my country's metal packaging container manufacturing industry achieved a total industrial output value of 44,491,82,000 yuan, an increase of 25.42% over the same period of the previous year.
The demand of my country's packaging industry puts forward higher requirements for metal packaging not only in terms of quantity and quality. During the "Eleventh Five-Year Plan" period, my country’s packaging industry will continue to grow rapidly. By 2010, my country’s packaging industry market will exceed 500 billion yuan, an average growth rate of 9%. my country’s metal packaging is expected to reach about 50 billion yuan. Metal packaging has entered a new growth opportunity period. Metal packaging products are abundant, application fields are very broad, and there is huge room for development.
In the past ten years, China's economy has continued to increase by double digits, and people's living standards have continued to improve, especially as the consumption concept of contemporary young people has changed. Metal-packaged beverages, food, and cosmetics are very popular among them. In 2006, China’s beverage output was 41 million tons and became the world’s second largest beverage producer after the United States. The deepening development of China's petrochemical products, fine chemicals, and daily-use chemical products has not only expanded domestic demand but also increased exports, all of which have provided a huge potential market for metal packaging.
1. Excellent barrier properties. Metal packaging containers can not only block gases such as air, oxygen, water vapor, carbon dioxide, etc., but also block light, especially ultraviolet light, so it will not cause deliquescent, deterioration, corruption, fading and fragrance of the contents. Change.
2. Excellent mechanical properties Because metal packaging containers are rigid and easy to handle, they can withstand collisions, vibrations and stacking, and are convenient for transportation and storage, which greatly increases the sales radius of goods.
3. Good thermal conductivity. The use of food metal cans has high heating and cooling efficiency, which can improve the effects of high-temperature sterilization and rapid cooling, and it is possible to realize the in-tank cooking of the contents.
4. Good processing adaptability. Due to the good ductility of metal, high precision and high speed production can be achieved for complex forming processing. For example, the production speed of the tinplate three-piece can production line can reach 3,600 cans/min. Such high productivity enables metal containers to meet a large number of consumer demands at a lower cost.
5. Easy to use the metal packaging container is not easy to be damaged and is easy to carry. Now many beverage and food cans are combined with easy-open lids, which increase the convenience of use to adapt to the fast-paced life of modern equipment and are widely used in travel life.
6. Beautiful decoration Metal containers generally have a beautiful metallic luster, coupled with colorful graphic printing, which adds to the aesthetics of the product. Because of this, when giving gifts, people often prefer products packaged in metal containers.
7. Hygiene and safety Due to the use of appropriate coatings, the metal container fully meets the requirements for hygiene and safety of food containers.
8. Discarded and easy-to-handle metal containers can generally be recycled and reused after they are used up. It not only recovers resources, saves energy, but also eliminates environmental pollution. Even if the metal is rusted and scattered in the soil, it will not have a bad impact on the environment.
9. Has good shielding performance. The protective packaging of high-tech electronic equipment can no longer stay on the basic protective functions of moisture, mildew, rust, and shock. When electromagnetic waves penetrate the sensitive electrical components in the equipment, their effect is very much like electrostatic discharge, which will cause the electrical components to fail and make the equipment unusable. The good shielding performance of the metal packaging container makes it anti-electromagnetic and effective protection of high-tech electronic equipment.
10. Magnetically permeable Steel containers are magnetically permeable, so they can be transported by magnetic force.