With the development and progress of science and technology and people’s awareness of environmental protection, many new food packaging products that are hygienic, convenient, practical, and environmentally friendly have been developed and developed abroad. They are popular and they are now ready for introduction.
1. Packages that can cook rice Japan has developed a packaging bag that can be used to cook rice. Its design has two layers. The outer layer is a heat-resistant nylon; the inner layer is an ethylene film, but there is a water level in the bag. Line, when used, put raw rice into the bag, add water to the corresponding water line, put the bag into the pot and cook it for 20 minutes, then open the bag for food. It is hygienic and convenient, especially suitable for use in the field.
2. Food cooling bags Japan introduced household food cooling bags, which are double-layered vinyl bags, about 20cm in length and 16cm in width. The outer bag contains a polymer water-absorbing polymer coagulant and a micropore on the inner surface. With a straw. If the bag is put into the water for 15 to 30 minutes, the water will slowly infiltrate into the bag and form a gel-like coolant, which is then placed in the refrigerator for cooling. When traveling, people can take cold or cold drinks from the refrigerator and put them in cold storage bags. They can take their food freely, especially for midsummer use.
3. Grain anti-mildew packaging bag Japan Mitsubishi Chemicals has developed a new kind of grain anti-mildew bag, which is made of polyolefin resin film and contains 0.01%-0.05% vanillin, which can slowly volatilize and infiltrate. In food, it can not only inhibit mold for a long time, but also produce a pleasant fragrance for food.
4. Frozen Food Insulation Bags Frozen foods insulated bags developed by France are similar in appearance to Plastic Bags and paper bags provided by goods or supermarkets, but they are thicker. The bag is divided into two layers, the outer layer is a general plastic and thick paper, and the inner layer is an insulating layer made of nylon fiber. The seal above the merchandise bag is tighter and the principle is similar to the heat preservation water bottle. The holding time is 2h, 3h, 4h, and there are different temperatures such as 0°C, -4°C, and 10°C. There is also a portable travel bag type, which can hold 10kg of frozen food for longer holding time.
5, meat double layer superimposed film packaging France launched the meat double layer superimposed film packaging, the outer layer is a high-density polyethylene film with a special structure and performance, the inner layer is edible paper. The superposed bilayer film is translucent and has a thickness of only 12 μm. The package can solve the problem that ordinary materials packaged meat will impregnate the blood and the grease is not easy to separate and make the surface into a hard problem, and can maintain the original color, smell and taste of the meat. Plastic film is non-toxic and very safe.
6, anti-corrosion packaging paper Sweden Orenson Paper Co., Ltd. introduced high permeability food packaging paper. Its inner and outer layers are made of a thin layer of fluororesin, which is free of water and oil, and the inside and outside temperatures can be the same when wrapped in food. The original flavor of the food can be better preserved in the refrigerator and it is fresh as before. A Japanese company uses a paper immersed in an ethanol solution containing 2% succinic acid, 33% sodium succinate and 0.07% sorbic acid, and then dried to make a food packaging paper for packaging foods at 38°C. Stored for 3 weeks without deterioration.
7. Inflatable packaging bags Inflatable packaging bags are used to remove foodstuffs from the air and fill with carbon dioxide and dioxosulfuron to extend the food shelf life. Foods such as potatoes, apples, beef, mushrooms, etc. can be stored at room temperature for 250 days in an air-packing bag, and they do not need to be refrigerated during storage, sales, and sales, which can save a lot of energy (compared with frozen foods and canned foods, can be reduced Energy consumption 45%).
8. Releasable packaging Japan's NIS-SEKI has developed a film that can release fragrances such as apples, strawberries, and lemons for packaging foods such as sweets, fresh vegetables, and seafood.
9, temperature control packaging The United States 3M company developed a THIN-SUITE plastic non-woven fabrics, made with food packaging can be insulated and cold. 3M and L-POIMT have also developed a temperature-controlled package that monitors the temperature of the food in the package.
10. Self-heating or self-cooling packaging Japan has used the heat released by the exothermic reaction of calcium chloride and water or the oxidation reaction of iron to heat the food in the package; the endothermic reaction of calcium chloride and urea is used to make the package Food cooling. This type of new packaging is used for canned and travel convenience foods.
11, absorbent packaging Germany STOCK-HANSEW company developed a FVOR-PAC film, made of absorbent packaging, can be used to package fresh fish, meat, can absorb blood and odor, to prevent pollution. It also absorbs water vapor to prevent condensed moisture from damaging the contents. Used to package frozen foods to reduce freezing time.
12. Anti-fog packaging Japan's GUNZE, TOYOBO, and CNA have developed a polyethylene and polypropylene film with anti-fog effect that can be made into an anti-fog package for packaging fresh fruit and preventing moisture from condensing and condensing. In the film, fruit rot occurs.
13. Antimicrobial packaging Japan Mitsubishi Corporation has developed a special zeolite material called ZEOMIE that is added to polyethylene, polypropylene and polystyrene films. Its content is only 0.7%-1% and it can produce active oxygen. Can inhibit the proliferation of microorganisms, antibacterial effect is good.
14, deodorant packaging Japan DANICEL chemical company developed a deodorant, it is added to the polyethylene film, used to package seafood food, can remove the smell of fish. Used to pack food waste, can remove ammonia and hydrogen sulfide and other odors.
15. Releasable far-infrared package Japan Paper Corporation has developed a ceramic-containing film for packaging fresh fish, meat, etc. It can extend the preservation time of fish and meat by releasing far-infrared rays.
Trebor Packing Co., Ltd. introduced vegetable and porcelain fresh-keeping packaging that combines inflatable packaging technology with advanced ceramic paper packaging technology. The vegetables are packed in thin-film bags with porcelain paper, and the air in the bags is removed by vacuum and then filled with inert gas. After the bags are sealed, the porcelain paper continuously emits harmless long-wave infrared radiation. Thus limiting the movement of bacteria in the water molecules, but also can absorb a small amount of ethylene gas, greatly prolong the preservation time of vegetables.
16. Dissolvable food packaging Most foreign food packaging materials that can be dissolved are processed from natural raw materials such as sugar, seaweed, starch, fruits and vegetables, food processing waste, etc., and have four major advantages: (1) Ready-to-eat, together with packaged foods Direct consumption; (2) Water-solubility, packaged as a film or a gapless capsule, soluble in water at a certain time, easily digested and absorbed by the body; (3) oil resistance; (4) low temperature resistance. The most promising of these new types of packaging is the food "edible wrapping". It uses spinach, cabbage, melon, carrots, mushrooms, kelp, fungus, pineapple, bananas, oranges, apples, tea and other fruits and vegetables and bean curd residue, distiller's grains, rice sugar and other raw materials processed into a variety of edible food packaging paper , can be used to package foods, can also be directly as a fruit food.
17, edible packaging The United States using soybean protein by adding enzymes and other materials, made of soybean protein packaging film, this package can make food moisture, prevent oxygen from entering, but also can be cooked together with food, avoid food Secondary pollution.
18. Packaging for pigs that can be fed Poland has developed a new type of packaging made from new material "Siris". Its production cost is lower than that of traditional plastic packaging. It can be used to package foods that can withstand 120°C and can be used to feed pigs. If buried underground, it can be quickly turned into fertilizer.
19, biodegradable resin packaging Japan's successful research "corn starch resin" has broad prospects for development, this resin is corn raw materials, after plasticization. The packaging material made of it can be disposed of through burning, biochemical decomposition, and insect feeding, thus eliminating the "white pollution" hazard.
20, nano-packages in the packaging materials (such as plastics and composite materials) add nano-particles, making it produce odor, sterilization and disinfection. Now some of our companies are using this technical feature to add nanoparticles to refrigerators, and foods have greatly extended their shelf life. Nanoparticles can also be added to paper, plastics, and composites for packaging foods, which can increase the shelf life of packaged foods.