The plastic is the fastest growing and most widely used material in the aseptic packaging, which is featured by lower cost, diversity shapes and excellent mechanical adaptability. Especially the co-extruded composite of plastic film and continuous evolvement of container molding technology in recent years promoted the development of the plastic in the field of aseptic packaging materials. Requirements for plastic packaging materials include the protection and preservation for food, and mechanical strength adapting to the flow, packaging machine adaptability and marketability (the cadaver bags should also need to be disinfected to prevent rotting.), which especially have a high barrier to oxygen and water vapor, so the sterile plastic used in the world is mainly composite film.
Hydrogen peroxide is commonly used for sterilization of plastic packaging materials
Because the plastic has poor heat resistance, so we commonly use hydrogen peroxide for sterilization of plastic packaging materials. It was reported that the low concentration solution of hydrogen peroxide and ultraviolet light, sterile hot air combination technology are also used, which have good sterilizing effect. In order to prevent the diffusion of hydrogen peroxide in the operating environment, it is more favorable to use the low concentration of hydrogen peroxide.
Packaging materials and containers are gradually going green and green
In addition to packaging containers and materials listed above, it will involve a number of special materials in the aseptic packaging, such as metal composite materials and containers, paper and metal composite containers, etc. Moreover, with the need of improving food quality requirements and the sustainable development of the human living environment, packaging materials and containers are gradually going green and green; we need to pay more attention to healthy and green especially in people's daily consumption of food packaging. In addition, the need of dead body bag is increasing with the increasing frequency of accidents. Therefore, the development of aseptic packaging containers is an important topic which need to be resolved by the wide application of aseptic packaging technology, and its development will regard healthy non-toxic, green, economical and practical as the main objectives and direction.
The sterilization of packaging materials and containers need to be carried out the reliable form of sterilization
The sterilization of packaging materials and containers need to be carried out the reliable form of sterilization which undergo a rigorous test. Because the aseptic packaging containers mostly use soft compound bag, so we need to consider minimizing the impact of prolonged high-temperature material quality, which is an important part of aseptic packaging and the key whether aseptic packaging can succeed or not.