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Tinplate applications of varying thicknesses: 1. Thin Tinplate (0.13mm to 0.20mm) 1.1 Food and beverage cans 1.2 Biscuit boxes and candy packaging 1.3 Cosmetics and perfume containers 2. Medium Tinplate (0.21mm to 0.30mm) 2.1 Food cans 2.2 Paint cans and chemical packaging 2.3 Can caps and closures 3. Thick Tinplate (0.31mm to 0.50mm) 3.1 Large paint cans and chemical containers 3.2 Construction and decorative materials 3.3 Industrial packaging containers

Not all tinplate meets food-grade standards. In fact, tinplate can be categorized as food-grade or industrial-grade depending on its intended use. Food-grade tinplate must meet specific food contact safety standards, while industrial-grade tinplate is primarily used for non-food packaging, such as paint cans, lubricant cans, and cosmetics packaging.

Food packaging grade tinplate sheet is not easy to release harmful substances at room temperature, but whether it will release heavy metal elements such as lead and cadmium under high temperature conditions is worrying. High temperature may decompose the metal surface coating, resulting in food contamination.

The tin-plated layer on the surface of tinplate plate can not only resist the erosion of air and moisture, but also prevent the metal from directly contacting food. Especially in acidic foods (such as canned fruit and canned tomatoes), the protective performance of tinplate plate is particularly important.

Although tinplate cookie cans can be washed, improper cleaning methods will indeed damage the coating. Once the coating is damaged, it will not only affect the appearance of the can, but also have a negative impact on its functionality, causing the metal part to be exposed to the air and accelerating the corrosion process.

Although offset printing technology has many advantages, with the continuous advancement of printing technology, other emerging printing methods are also challenging the status of offset printing. In 2025, new technologies such as digital printing and screen printing have gradually entered the field of tinplate printing.

Tinplate printing is a complex process flow that usually requires multiple processes to complete. In contrast, the process flow of carton printing is relatively simple, mainly divided into two methods: flexographic printing and offset printing.

Combined with the analysis in the previous article, it can be seen that the production of metal cans does rely mainly on tinplate plate. Whether from the mechanical properties, chemical stability of the material, or from its anti-corrosion and decorative characteristics, tinplate plate is an ideal choice for making metal cans.

As the main material of tinplate plate, low carbon steel itself has the natural color of metal, usually showing a silver-gray or iron-gray metallic luster. This color of the steel surface comes from the essential properties of its iron element, and usually has a strong reflective effect.

Tinplate plate is not actually aluminum, but a steel with a tin coating. Although it is different from aluminum, like aluminum, tinplate plate is also a recyclable material. Let's learn more about tinplate plate and aluminum.