Sterile and Antibacterial Plastic Packaging Materials

Sterile packaging can be aseptic conditions, without adding preservatives, at room temperature to maximize the retention of the original nutrients and flavors of food. The shelf life can be extended to facilitate transportation and storage. Aseptic packaging is mainly used in food, high seasonings, medicine and cosmetics. The flexible packaging materials used are paper, plastic, aluminum-plastic composite films, multi-layer co-extruded aseptic packaging sheets containing high barrier plastics, and the like.

Antibacterial plastic packaging material is to give a certain degree of antibacterial properties of plastic packaging materials, has now developed a new type of masterbatch containing silver ions as an inorganic antibacterial agent, silver ions have a significant antibacterial effect, characterized by the duration of antibacterial effect It will not be high due to gasification and migration and will not pollute the environment. A thin film prepared by adding a silver ion-containing master batch (a content of 1% to 3%) or a container coated with a layer of this thin film on the surface shows that in the case of a non-nutrient source, a 1% silver ion mother was used. The film of the material can completely kill the bacteria that can cause food poisoning within 1 to 2 days, and is widely used for packaging of cooked meat, aquatic products and liquid foods.