The hottest metal material tinplate

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Metal material tinplate

tinplate container has many advantages, such as high strength, good formability, strong compatibility with products and so on. Therefore, since the first two centuries, countries have generally attached importance to this kind of packaging container, which is widely used from shoe polish, paint, ink, lubricating oil, to various chemicals, dangerous goods and so on. In particular, we constantly improve the design, modeling and technology, create a beautiful appearance and brand, and promote the sales of products

now, products packaged in metal cans can be seen everywhere from the petrochemical industry to the food industry. The building materials industry uses it to contain all-purpose adhesives, sealing fillers and high-grade coatings. At present, it has become fashionable to pack high-end underwear with metal shaped cans. Therefore, metal shaped cans will have broad prospects for development

nowadays, small and beautifully printed tinplate resealable containers are still very popular. These containers are mainly used to hold dry food, naked candy, biscuits, nuts, drugs, tobacco, shoe polish, car wax, Buttercup, vegetable oil, and so on. Many small factories in Japan produce such tinplate containers. What will be produced when they are used for seaweed? What measures will they take Green tea, rice cakes, biscuits, etc. to keep the products dry, you can also add artistic wrapping paper, traditional cloth stickers or delicate printing on the outside of tieting as gifts

Germany once used tinplate containers to pack balls, and Britain also used tinplate cans as gift boxes for men, which contain neckties, golf balls, and even shoes in France. This kind of tinplate, except for the bottom, is made of all color printing and trademark stamping. Experts in the industry generally believe that it has a good effect and is popular with consumers

sheet printing is mainly offset lithography. Because the tinplate substrate is not absorbent, the drying room curing method is used to volatilize the solvent in the ink. For a long time, tinplate printing products have problems such as low color saturation, small range of color gamut performance, poor pattern reduction, easy point deformation, and more difficult to control accuracy and color difference than other printing. At the end of the 20th century, the latest achievements of computer information system and image processing, as well as the combination of high-definition printing and wide color gamut printing, have produced a high fidelity effect in tinplate printing

packaging containers can promote sales and have become a trend of market development. In order to commemorate the centenary of Lipton tea's sale in the UK, Lipton tea company in the UK has specially designed a delicate tinplate tin, which is printed in eight colors and coated with green paint on the surface. Hundreds of thousands of tea tins have been sold in the United States within a year.

resistance welding provides sufficient strength and integrity for the tinplate, especially for the manufacture of round and special-shaped tins. The British company siembi imitates the Indian elephant tea tin and also adopts the resistance welding process to design and manufacture. The tin body and the tin cover are color printed and coated with shiny green paint. Paint tin is a representative product in the application field of tinplate containers

tinplate tins have obvious advantages such as good strength, puncture resistance, strong fire prevention and decoration, and have better oxygen resistance than plastic cans. However, the defect of tinplate used for water-based paint is that the upper edge is easy to rust, resulting in paint discoloration. A Belgian paint manufacturer has developed a polyethylene gasket, which is placed in the upper ring to prevent corrosion of water-based paint

during the production of canned food, a layer of paint must be painted on the inner wall of the can to separate the inner food from the tinplate, so as to reduce the reaction between them, so as to ensure the food quality and extend the shelf life. The coating must be non-toxic, odorless, tasteless, and will not affect the flavor and color of food. The coating will not fall off when subjected to impact, folding, bending and other processing. It will not scorch when welded at high temperature, and no harmful substances will leak out. The film is dense, basically free of pores, and has strong corrosion resistance

in order to meet the quality requirements of raw materials for the can making process, the process steps must be strictly controlled when producing tinplate, and the three key processes of stamping, welding and sealing must be grasped. For special-shaped cans, the flanging size of the can body is also crucial. The enterprises that produce metal special-shaped cans basically adopt resistance welding technology, which is characterized by good sealing performance, high welding strength, beautiful welding shape and thin thickness of welding place, which is convenient for the operation of subsequent processes such as flanging, necking and sealing

the United States has introduced a metal barrel with a capacity of more than 30 liters, which is mainly used for the transportation of chemicals, oils, solvent products, liquid dangerous goods, etc. the gasket in the barrel cover can prevent the entry of light and moisture, and has good oxygen resistance and air tightness

the metal barrel has a smooth appearance and can be marked with permanent special marks and legal warnings for safe use. According to the regulations of the United Nations on the packaging of dangerous goods, the packaging used for dangerous goods must withstand the tests of stacking, falling, leakage prevention, water pressure, etc., and the containers that pass the test should be marked with permanent or molded relevant marks on the barrels. Australia is the first country in the world to require dangerous goods to be packaged in domestic and export transportation

a Dutch metal container company called BIFI manufactured the first conical pail, which was approved by the United Nations and accepted as the transportation packaging of liquid dangerous goods. The bucket can withstand falling from a height of 1.8 meters, in line with the United Nations regulations on the packaging of dangerous goods

with the expansion of the consumer market, soft drinks are in short supply. The technology of tinplate containers and special-shaped cans used in beverage cans and food industry has developed rapidly. In the past, the tinplate needed by China's metal container industry has always depended on imports. Now, domestic Baosteel and WISCO, as well as Zhongshan, Wuxi, Zhangzhou, Guangzhou, Haikou, Shanghai, Fuzhou, Shenyang and other places can also produce it. The Pearl River, Yangtze River and Bohai Sea deltas are concentrated metal industrial belts. China can produce internationally used tinplate, ink, paint, sealant, copper wire and general products

tinplate containers will face competition and opportunities. Plastics and other packaging materials will strive to compete for the market. However, the recyclability of tinplate containers can meet the requirements of environmentalists for green products in China, so the swing rod still plays an important role in prohibiting vertical marking in the 21st century

source: Shanghai packaging

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