The hottest new packaging materials for a variety

2022-08-23
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A variety of new packaging materials for agricultural products appeared overseas (I)

Germany launched corn packaging materials

a German farm developed biological packaging materials from corn, which can replace plastic packaging materials. Through experiments, the farm found that the particles made of corn flour slurry and extruded and expanded by the compressor can effectively withstand impact and pressure, and are antistatic, anti fog and will not pollute the environment. After repeated experiments, they successfully developed a unique corn packaging material. The core of this technology is the special processing technology and equipment. In order to prepare corn flour slurry, we should not only add water, but also add additives similar to vegetable oil, and add some ground grass roots to increase the stability of particles. The development of this corn biological packaging material received strong support from the German federal environmental foundation and the renewable raw materials Association. This achievement met the demand for pollution-free packaging materials, so it soon found a market in the packaging of pharmaceuticals, cosmetics and industrial products. This kind of biological packaging material has competitive advantages in price and application

Japan develops corn foaming material

Japan knitting synthetic fiber company uses polylactic acid extracted from corn as raw material to produce biodegradable foaming material, which can be used as compost and decomposed into carbon dioxide and water in the soil, without producing substances that pollute the environment. This kind of foaming material can also reduce waste products. The preparation method is to use corn flour to make polylactic acid resin, dissolve it, mix it with a special additive, control its molecular structure, and turn it into particles that are easy to foam, then add organic foaming agent made of carbohydrates, form it in the molding machine, and heat it with high-pressure steam to form foaming material. The foaming material made by the new process has many advantages, such as: strength, cushioning, drug resistance, etc. are the same as styrene plastic, and the existing plastic foaming material manufacturing equipment can be used; After use, the heat generated by incineration is only 1/2 to 1 of styrene. Plastic bags are still in the farmers' market. The development and utilization of a kind of reinforced and toughened polyethylene masterbatch is flooded/3, which will not damage the incinerator; After making compost, it can also fertilize the field and will not pollute the soil

Japan uses fruit residue and soybean residue to make food packaging paper

Japan Gaoqi paper company uses apple residue discarded by the food industry to produce fruit residue paper. The preparation method is: remove the seeds in the fruit residue, pound it into pulp, add an appropriate amount of wood fiber to make paper. This kind of paper is easy to decompose after use, can be burned or composted, and can also be recycled for papermaking. It does not pollute the environment and can be used for food packaging. In addition, some people in Japan make tofu dregs into water-soluble paper, which can be widely used in instant noodles, condiments, barbecue, cakes, fruit bags. This technology can also be used in the automotive industry. The preparation method is: add fatty acids and protein acids to the tofu residue, let it decompose, then wash it with warm water, dry it into dry fiber, and then add adhesives such as yam, taro, dextrin, oligosaccharide, polypropylene glycol, etc

Japan launched a new type of refrigerated fresh-keeping bag

Brazil developed a new environmental protection packaging material

the University of Campinas in Brazil developed a new environmental protection material, which can be used as a light packaging material to replace foam plastics to eliminate white pollution. This new substance is made of natural recyclable substances, most of which are refined from corn, soybeans and castor beans

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