For conventional food cans and beverage packaging, the shelf life of tinplate products is usually around 3-5 years, depending on the nature of the contents. For some special-purpose tinplate products, such as chemical barrels or tool boxes, the service life can reach more than 10 years.

Why is tinplate environmentally friendly? 1. Recyclability of tinplate 2. Durability and reusability of tinplate 3. Tinplate has less environmental impact during production 4. Advantages of tinplate in reducing resource consumption

The unique material of tinplate determines that it must be highly compatible with ink to ensure the printing quality and durability of the pattern. The surface of tinplate is usually smooth and has a certain hardness, which makes it impossible for ordinary ink to adhere directly to its surface, and thus puts higher requirements on the performance of ink.

The black spots on the tin plate sheet usually refer to a significant color abnormality that appears on the surface of the tin plate sheet after these processes are completed. These black spots generally appear in the shape of dark or black spots, vary in size, and may be scattered or concentrated.

In acidic environments, the tin-plated layer of electrolytic tinplate can provide a certain degree of protection, but its acid resistance is limited. Strong acid environments may cause the dissolution and corrosion of the tin layer, thereby exposing the low-carbon steel substrate and further inducing corrosion.