PET cans
In plastic cans, pure plastic cans are used instead. Most are made of plastic, paper, aluminum foil and other composite materials, while the bottom and lid are made of plastic or metal. This plastic can is also called a combination. tank.
The difference between plastic cans is mainly the can body, which can be divided into two types according to its composition structure:
① Laminated composite material tank. It is made of several materials, such as plastic film, aluminum foil, and cardboard, into composite materials, and then extruded into a can body. The can body is mostly square with rounded corners. The bottom cover is mostly plastic, and is connected to the tank body by high frequency welding.
② Multi-layer material winding tank. It is made of a variety of materials into a cylinder by winding, and then cut into cans according to requirements, and then the bottom and lid of the can are respectively connected.
Plastic cans have not been around for a long time, but they have developed very quickly. Metal cans and glass bottles have been replaced on many occasions, mainly because of its many advantages:
① Light weight. The density of the materials used to make plastic cans is relatively small. According to the mass of containers with the same volume, plastic cans are smaller than metal iron cans and glass bottles.
② Low cost. Plastic cans have lower material costs and are easier to manufacture, so the overall price is cheaper.
③ can reliably protect the product. The tank body is made of a variety of materials with good chemical stability and barrier properties. The combination of the bottom, lid and tank body adopts a reliable sealing structure, so it can reliably protect the contents.
④ Good mechanical strength. Although the mechanical properties of plastic cans are slightly lower than that of metal cans and glass bottles, they are sufficient for packaging general products and rarely cause damage to strength.
⑤ Good shelf effect. The surface of the plastic tank is easy to print and easy to decorate, which is great for attracting customers and promoting sales.
Plastic cans are also inadequate: for example, the quality of the seal between the bottom cover and the can body is still unstable; when vacuum packaging and pressure packaging are performed, the strength of the can body is sometimes not high enough.
Plastic cans are widely used in the packaging field as a new type of packaging container. It can be used to package fruit juice, milk powder, aerated beverages, coffee, cosmetics, oils, etc.
With the rising cost of packaging for cans such as aluminum and tinplate, and traditional cans are opaque, consumers cannot observe packaging products. Plastic food cans were launched in this context. Plastic food cans use PET as the material, which is lighter than traditional cans, which facilitates long-distance transportation. The outer packaging is transparent. Through effective combination with some transparent labels, the product looks very dynamic and beautiful. At the same time, consumers can get up close Observe the product, the consumer experience is more perfect. Therefore, plastic food cans are very popular, and there are also professional food can manufacturers in China. Regarding the development of the market, Perfectly optimistic believes that although plastic food cans cannot completely replace cans, but as consumers' habits change, the growth of this market is an inevitable trend.
