Functionality of a transparent film of a new plastic film

With the continuous improvement of people's quality of life and food safety requirements, more and more requirements and higher standards have been put forward for the functionality of food packaging. Under this situation, countries around the world are also very active in developing new varieties of plastic film for food packaging to maximize the humanization needs of the market.

France introduced two new packaging films made from ordinary polyethylene (PVC) materials to identify whether the packaged food uses genetically modified materials. Using this specially treated PVC film for packaging, it is possible to identify whether the contents of the package, such as soybean oil, are processed from GM soy materials. Even for 5%-10% GM soy foods, it can be identified. France also pushed the market to {TodayHot} a two-layer superimposed film dedicated to packaging meat. The outer layer is a high-density polyethylene film with special structure and properties, and the inner layer is edible paper. The use of the film to package the meat can solve the problem that the meat of the ordinary material package will be soaked with bleeding and oil, and the skin is not easily separated and the surface is formed into a hard skin, and the original color, fragrance and taste of the meat can be maintained.
Recently, a British company successfully developed a new type of plastic food packaging, which has a passive and active barrier function, which can effectively inhibit the infiltration of oxygen, even after the food bag is cooked, the effect will not be weakened. The new plastic food packaging not only extends the shelf life of the product, but also can be directly heated in a microwave oven, especially for the packaging of instant noodles. This new package is made up of 6 layers of different materials. The first layer is polypropylene, which is a polymer material with high oil resistance; the second layer and the fourth layer are adhesives; the third layer is an oxygen barrier polymer material EVOH; the fifth layer is an oxygen scavenger mixture, which is called As an active barrier, it not only prevents the entry of extraneous oxygen molecules, but also the oxygen in the package. The last layer is polypropylene. {HotTag} In the new package, the oxygen scavenger remains active even in the presence of moisture. Therefore, the shelf life of the food can be extended.