Differences in coating metals
The most fundamental difference between tin-plated steel and galvanized steel lies in the difference in their coating metals. Tin-plated steel is coated with tin, while galvanized steel is coated with zinc.
Tin packaging usually refers to various can-shaped packaging containers made of tin-coated steel sheets (tinplate) or other types of thin steel sheets. The most common material in tin packaging is tinplate, which is a thin layer of tin coated on the surface of the steel sheet.
If it is a large-area spraying job, such as architectural painting or automotive painting, you can choose a large-capacity paint aerosol can; for small furniture, decoration or handicraft spraying, you can choose a small-capacity aerosol can.
As a strong and stable metal material, tin plate sheet can effectively prevent the influence of oxygen, moisture, ultraviolet rays and other factors in the air on cosmetics. Through good sealing and impermeability, tin plate sheet packaging can minimize the contact of cosmetics with the external environment, thereby extending its shelf life.
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.
There are many types of anti-corrosion coatings for printing tinplate cans on the market. Common types include epoxy resin coatings, polyester coatings, polyurethane coatings, and fluorinated coatings. Different types of coatings have certain differences in anti-corrosion performance, high temperature resistance, and chemical resistance.
When making cookie packaging tins, the size of packaging tins must be determined first. The choice of size not only directly affects the cost of packaging, but also the performance of the product in the market.
In addition to tin plating, tinplate sheet manufacturers can also use other surface treatment methods to enhance the durability of the product. For example, some tinplate sheet manufacturers use anti-corrosion coatings (such as epoxy resin coatings, polyester coatings, etc.) to provide additional protection for tinplate sheet.
1. Why is the top of tin plate cans called "can lid"?
The top of tin plate cans is usually called "can lid" or "lid", which is used to close the can body and isolate the internal contents from the outside world. Depending on the purpose, the tin plate cans lid will adopt different designs.
Tinplate containers and plastic containers have their own advantages and disadvantages and are suitable for different packaging needs. Tinplate containers are suitable for food or daily necessities that require long-term storage and high corrosion resistance, while plastic containers are suitable for the packaging needs of daily consumer goods with their lightness and economy.
