The hottest plastic film for food packaging keeps

2022-08-16
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With the continuous improvement of people's requirements for quality of life and food safety, more and more requirements and higher standards are put forward for the functionality of food packaging. In this situation, countries all over the world are also very active in the development of new varieties of plastic films for food packaging to meet the humanized needs of the market to the greatest extent

France introduced two kinds of new packaging films with round samples of no less than 1 processed from ordinary polyethylene (PVC) materials to the market, which can be used to identify whether the packaged food is made of genetically modified raw materials. Using this specially treated PVC film for packaging can identify whether its packaging contents, such as soybean oil, are processed from genetically modified soybean raw materials. Even foods containing only 5% - 10% GM soybeans can be identified clearly. France also introduced to the market a double-layer laminated film specially used for packing meat. Its outer layer is a high-density polyethylene film with special structure and performance, and its inner layer is edible paper. Using this film to pack meat can solve the problem that ordinary meat packed with materials will be soaked with blood and grease, which is not easy to separate from the meat and make the surface form a hard skin, and can maintain the original color, aroma and taste of meat

recently, a British company has successfully developed a new type of plastic food packaging, which has passive and active barrier functions, and can effectively inhibit the infiltration of oxygen production. Even after the food bag is cooked, the effect will not weaken. The new plastic food packaging can not only prolong the storage life of the product, but also directly use microwave oven heating, which is especially suitable for the packaging of instant noodles. This new packaging is made of 6 layers of different materials. The second layer is polypropylene, which is a polymer material with high oil resistance; The second and fourth layers are adhesive; The third layer is EVOH; The fifth layer is the mixture of deoxidizers, which is called active barrier, which can not only prevent the entry of foreign oxygen molecules, but also absorb the oxygen in the package; The last layer is polypropylene material. In the new packaging, the deoxidizer can remain active even in the presence of water, which can extend the shelf life of food

Switzerland has recently developed and launched a special cover film simkahin for microwave oven products. The film is not only resistant to high pressure, but also has good fog resistance. The cover film is specially used for heating various dishes in a microwave oven, which can be quickly and conveniently heated for eating. During the heating process, the pressure generated by water vapor can be safely released through the film. A plastic processing company in ruitu has successfully developed a chemical self destructing plastic, which can gradually dissolve and no longer pollute the environment. This chemical self destructing plastic is sprayed with a specially formulated solvent, which can react with the plastic and gradually dissolve it into a substance that can be washed away by water. After the composite plastic film produced by this new type of plastic is made into food and beverage packaging, once the packaging is torn open, the inner absorption coated with special reagent highlights the moisture in the air for a long time in the future, reacts with the polymer with reaction group, and the film will slowly decompose like a perforation

according to overseas media reports, German scientists have successfully developed antibacterial plastic packaging with medical expertise. The package is suitable for the packaging of liquid drinks such as milk, and it is an important change in the field of food packaging technology. Researchers from German processing manufacturers and Packaging Technology Association used coating technology to coat a layer of anti-corrosion and antibacterial materials on plastic packaging film, replacing the preservatives added in food. This kind of coating can be realized by materials and special technologies based on composite resins

influenced by the international packaging trend, domestic beer and beverage manufacturers began to use plastic film packaging in the product combination packaging process of the 3 (5) layer film composite extrusion production line, which was subject to the size of the extruder and the design of the mold, and gradually replaced the traditional cartons. The advantages of plastic film packaging are: low packaging cost; It can effectively reduce the accidents of bottle explosion and personal injury, and solve the pollution problem of plastic turnover boxes on the surface of memory bottles during circulation and stacking; Applicable to a wide range of products, such as glass bottles, metal cans and cartons; It can give consumers a refreshing feeling

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