In life, you often see a variety of tea iron boxes, food iron boxes and milk powder cans and other iron box iron cans, although on the surface they seem to be tinplate (tinned iron) as raw material iron box iron cans, but different uses, the process used is also very different. Let's take a look at the process and particularity of different uses of common tinplate cans.
1. Tea can is a common kind of iron can, the lid mouth is mainly shrinking, internal pressure, outer roll, the bottom process is mainly gong bottom and buckle bottom. The inside is coated with food-grade anti-rust oil, and the outside is printed with four colors and spot colors. It is mainly used for the packaging of tea leaves such as Longjing, Biluochun, Maofeng, Huangya, etc.
2. The production process of the lid and bottom of the food iron box is not much different from that of the tea iron box, and it is required to reach food grade in printing, which is mainly used for the packaging of biscuits, candy, chocolate, honey and mooncakes.
3, milk powder can, rice flour can because of its particularity, need to have a very good sealing, so most of them will use welding machine sealing process, raw material selection and production process and tea, food packaging is different, the equipment used is also different.
4. The types of gifts and handicraft iron boxes are cumbersome, and the shapes are also varied, such as open change iron cans, toy iron boxes with windows, shaped Christmas iron boxes, flip stationery iron boxes, special-shaped iron boxes and drawer boxes, etc.
