The hottest material is the basis of packaging des

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Materials are the basis of packaging design, while tin is an excellent food packaging material

[China Packaging News] in packaging design, we have many materials to use, but when designing food packaging, we generally use tin. Then, as a commonly used packaging design, what are the advantages and disadvantages of tin? In fact, materials are the basis of packaging design, and finding suitable materials is the basis of excellent design

tin is a silvery white and soft metal, which is very similar to lead and zinc, but looks brighter. Its hardness is relatively low, and it can be cut with a knife. It has a good ductility in the experiment of electrochemical measurement of the data line corresponding to each point on the observation curve, which can be enlarged, reduced and clicked. Especially at the temperature of 100 ℃, it can be developed into extremely thin tin foil, and the thickness can be less than 0.04 mm

tin is also a low melting point metal. Its melting point is only 232 ℃. Therefore, as long as you use candle flame, you can melt it into a liquid with good fluidity like mercury

pure tin has a peculiar property: when the tin rod and tin plate are bent, it will make a special popping sound like crying. This sound is caused by friction between crystals. Such friction will occur when the crystal is deformed. Strangely, if tin alloy is used instead, it will not make such a cry during deformation. Therefore, people often identify whether a piece of metal is tin or not according to this characteristic of tin

then, what are the excellent properties of the tin coat? In short, it can resist both corrosion and poison

why does tinned iron have such excellent properties? This is inseparable from the nature of tin. It turns out that the chemical properties of tin are very stable. Its performance is stable and reliable, and there will be no chemical reaction with water. Even if it is exposed to humid air for a long time, it will only gradually form a dense oxide film on its surface, which can prevent the continuous oxidation of tin, which is the reason for the corrosion resistance of tinned iron sheet

in addition, tin acts slowly with inorganic acids and hardly with organic acids, and the salts of tin are generally non-toxic. Therefore, tin plated iron sheets are often used as food packaging materials, such as food cans, biscuit boxes, etc

after knowing the basic characteristics of tin, do we know how to use it in packaging design? For more information, please continue to pay attention to Chinese packaging

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