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As a steel-based material, tinplate sheet possesses the inherent strength and durability of steel. Compared to other packaging materials such as plastic and paper, tinplate sheet effectively protects canned foods from external physical impact or compression.

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.

Due to the moisture-proof, light-proof and anti-oxidation properties of tinplate food packaging cans, it can provide a relatively stable and closed environment for tea, thereby delaying the loss of tea flavor. Therefore, the use of tinplate food packaging cans can significantly extend the shelf life of tea.

The tin coating of food packaging cans can not only prevent food from directly contacting the iron cans, but also reduce the penetration of oxygen, thereby reducing the oxidation effects that canned beef may suffer during long-term storage.

Pattern printing on food packaging cans is a precise and systematic process, which usually includes the following main steps: 1. Pattern design and plate making 2. Metal surface treatment 3. Printing and drying 4. Topcoating and packaging

Based on the specific needs of tinplate cans for food packaging, offset printing is the most suitable printing method for most food packaging. It can provide high-precision printing effects, bright colors, and is suitable for mass production. At the same time, the cost of offset printing is relatively low, which can meet the needs of most food companies.

Epoxy resin coating can not only prevent metal from direct contact with food, avoid metal corrosion or contamination of food, but also extend the shelf life of food. Therefore, the inner wall coating of many food and beverage cans contains BPA.

It does not react like other metals when it encounters water or acid, and can provide stronger corrosion resistance for packaging cans. At the same time, the surface of tin is smooth, odorless, and non-toxic, and will not affect the taste and quality of the food inside the package.

Tinplate products in food packaging: 1. Tinplate packaging in canned food ● Canned food ● Canned soup and liquid food ● Canned high-acid food 2. Tinplate products in beverage packaging ● Metal beverage cans ● Tea cans and coffee cans 3. Tinplate products in candy and snack packaging ● Candy boxes ● Biscuit and cake cans ● Potato chip cans 4. Tinplate products in dairy and milk powder packaging ● Milk powder cans ● Dairy packaging cans 5. Tinplate packaging for condiments and oily foods ● Condiment cans ● Edible oil packaging cans

Tinplate is actually a composite material, its core part is low-carbon steel plate, and the surface is plated with a thin layer of tin. Therefore, tinplate is mainly composed of two materials: steel plate (iron) and tin.