Food safety is a crucial consideration in the packaging industry. Tinplate cans have proven themselves to be extremely safe as food packaging materials over many years.
Tinplate packaging cans are widely used for beverages and liquid foods, especially products that require a good seal, such as carbonated beverages and beer.
Tinplate packaging cans are not suitable for packaging foods with high acidity or high salt content, such as ketchup, fruit vinegar, and preserved foods.
Metal tin (Sn) is a soft silver-white metal at room temperature with good ductility and chemical stability. Its resistivity is about 1.09×10−7Ω⋅m, which is slightly higher than copper and silver, but still in the range of typical metal conductors. The presence of tin will not only not weaken the conductivity of the steel plate, but also protect the continuity of the conductive layer due to its uniform coverage.
Tinplate packaging cans have extremely strong pressure resistance and impact resistance. This structural strength can effectively prevent deformation and cracking during food transportation, stacking and handling, thereby protecting the internal food from external damage.
From the perspective of recycling, tinplate sheet has a high reuse value. Its iron-based material can be melted and reprocessed, and the tin layer can also be effectively recycled. Compared with other metal materials, tinplate sheet has higher economic and environmental benefits in the recycling process.
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Tinplate packaging cans can effectively isolate air, moisture, light and harmful substances, and prevent oxygen from entering the can. Oxygen is the main factor causing coffee oxidation and flavor loss, and being able to prevent the entry of oxygen directly affects the shelf life of coffee.
The price of customized tinplate packaging cans is usually higher than wholesale packaging because it involves more design and production processes. Customized packaging requires a series of designs and productions according to the specific needs of customers, and the production quantity is usually small, so the unit cost is high.
Unlike many disposable plastic packaging, tinplate packaging cans have a very high recycling value. It is a 100% recyclable material that can be recycled many times. This feature makes tinplate packaging cans an ideal environmentally friendly packaging choice.
Although the production process of tinplate packaging cans still requires energy consumption and generates carbon emissions, compared with aluminum alloys, the production process of tinplate packaging cans is more energy-efficient and environmentally friendly, and its recycling process has a lighter burden on the environment.
