Different packages indicate different production processes, different shelf life lengths and different brands.
Specifically introduced as follows:
1, the production process is not the same
such as Tetra Pak know that the package is composed of paper, aluminum, plastic six-layer composite packaging; the structure of the Bailey package is a multi-layer aseptic composite film; the outermost layer of the roof box packaging is a plastic film, the intermediate layer of fibers, the cold filling of the inner layer of the impermeable layer of paper, the hot channel filling of the inner layer is aluminum foil.
2, shelf life length is not the same.
Different processes manufactured milk packaging is bound to affect the shelf life of milk. Such as Tetra Pak itself can also effectively allow milk and air, bacteria, light and isolate each other, the shelf life can reach 6 to 9 months or even a year
Paraben packages on the oxygen barrier performance is more than 300 times that of the special ordinary plastic film, the shelf life of more than 30 days; roof box cold filled products shelf life of 7 days or 21 days to 30 days, hot-filled products have a shelf life of 3 months to 1 year.
3, different milk packaging can effectively differentiate from other brands.
Such as student milk is usually Tetra Pak, bright milk is usually roof box packaging, Wahaha milk is usually PET bottle packaging. These packages are both the commodity and the consumer's impression of the milk brand.
Extended information: Types of packaging for milk are: 1. Fresh milk is packaged mainly in the form of plastic bags, boxes and bottles. It is closely related to the sterilization method of fresh milk. 2, ultra-high-temperature sterilized milk, also known as UHT milk, mostly in composite plastic bags or paper-plastic composite packaging, pillow, brick and other forms. 3, pasteurized milk is commonly known as sterilized milk, using simple plastic bags or plastic bottles, glass bottles packaging, the general use of plastic bags single layer of polypropylene material. Baidu Encyclopedia-High Barrier Packaging Baidu Encyclopedia-Milk