INDUSTRY NEWS
The effect of tinplate metal cans on food preservation
Usually, when customers choose tinplate metal cans, they must first check whether its raw materials are good materials, and secondly, they must look at the appearance of the packaging tin box, whether there are defects, whether there is color difference in printing, etc. Whether the tin can packaging process can ensure product quality. Usually, a layer of varnish is coated on the tinplate can (metal can) to increase the surface gloss and scratch resistance of the printed part, and at the same time, it can also enhance a certain hardness, so that the printing surface coating has a certain degree of flexibility and corrosion resistance sex.
Tinplate has opacity, good sealing and tin reduction: it can react with residual oxygen and has a good fresh-keeping effect. As a source of effective iron (trace iron elements needed by the body), tinplate also has the characteristics of corrosion resistance, non-toxicity, high strength, and good ductility, and is suitable as a metal packaging material. In order to maintain the original quality of various foods, as early as 1819, American Underwood opened the first tinplate canning factory in Boston. They cut the tinplate into a specific shape and let craftsmen weld it into cylinders. The end is welded with a round bottom, and a hole is opened at the top to put the food into the tube. This is the first high-end tinplate box packaging. With the passage of time, people have printed patterns on tinplate, so that tinplate metal cans not only have the function of food preservation, but also have the function of decorative appearance, which can attract customers' attention.
Metal cans produced from tinplate materials have a protective effect on food. But don't confuse tinplate metal cans with metal cans. The tinplate metal cans usually mentioned are iron boxes made of tinplate. But metal cans are different: metal cans are pop cans, and its can lid and can body are produced separately, and finally assembled together. There are two kinds of materials for making cans: aluminum and tinplate. Both tinplate cans and metal cans must look at the nature of the raw materials.
In fact, the packaging cost of wooden or paper cans is much cheaper than that of tinplate cans, and exquisite patterns can also be printed, but high-quality products require high-quality packaging; although the unit price of tinplate cans is relatively high, the packaging container has strength High, good formability, strong compatibility with products and many other advantages. If you want your products to look high-end and have a longer shelf life, tinplate metal cans can be said to be the best choice for packaging, and they also have a different value for the product.
Previous Page：Advantages of tinplate
Next Page：Last page
