In modern society, metal tin box packaging, as an environmentally friendly and portable packaging form, is widely used in food, medicine and other fields. However, tin can are prone to rust when exposed to air and humid environments, which not only affects the aesthetics of the product, but may also affect the quality of the product. Today, let's discuss how to avoid the rust of tin box packaging.
First of all, the reason why tin box packaging is easy to rust is that when tin is in full contact with water and oxygen, an oxidation reaction will occur to form tin oxides, which is our common rust. Therefore, to prevent the metal tin can from rusting, the key is to reduce the contact between itinplate, water and oxygen.
Second, use anti-rust paint. Anti-rust paint is a special paint that can be coated on the surface of the tin box, which can form a protective film that isolates tin from contact with water and oxygen, thereby effectively preventing the metal tin can packaging from rusting. We can choose the appropriate coating according to the specific use environment of the tin box. For example, in a high-temperature and high-humidity environment, high-temperature anti-rust coatings can be selected; in ocean transportation, marine anti-rust coatings can be selected.
Thirdly, electroplating treatment. Through electroplating, a protective layer can be formed on the surface of the tin box to isolate the tin from contact with water and oxygen, so as to achieve the purpose of rust prevention. Common electroplating processes include galvanizing, chrome plating, and tin plating. Electroplating treatment can not only prevent the tin can from rusting, but also improve the aesthetics of the tin box and improve product quality.
Finally, storage environment management. In addition to treating the surface of the tin box, reasonable storage of the metal can is also an important means to prevent the tin box from rusting. We can manage the storage environment and reduce the risk of custom printed tin cans rusting through the following measures:
1. When storing tin boxes, try to choose a dry and ventilated place, and avoid long-term storage in a humid environment.
2. Avoid placing the tin can directly on the ground. You can use tin frames, trays and other tools to isolate it to prevent ground moisture from intruding.
3. When storing the tin jar, some desiccant and dehumidifier can be placed to keep the environment dry.