The hottest new fashion of food packaging design i

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The new fashion of food packaging design in this century II

3 functional packaging

with the rapid development of packaging technology, in recent years, a number of new packaging products with unique functions have been developed at home and abroad. 1 when it is necessary to print and store p1f1 and p2f2 of the tested samples, a variety of new packaging products are refreshing and have been favored by consumers and operators. Recently, FDA has approved the application of a UV barrier in food packaging in the United States. Sunlight and fluorescent lamps in warehouses contain ultraviolet rays, and this ultraviolet barrier added to transparent PET packaging materials can effectively block ultraviolet rays and prevent any changes in the color, smell, taste and nutritional value of the items in the packaging. Transparent packaging materials can let consumers know the quality and appearance of products

a Japanese company has introduced a kind of anticorrosive paper that can be used for food packaging. Its production process is to dip the base paper into an ethanol solution containing 20% succinic acid, 33% sodium succinate and 0.07% sorbic acid, and then dry it. The food packed with brine with this paper can be stored for 3 weeks at a high temperature of 38~c without changing its quality. Another Japanese company produces a new type of packaging paper that can prevent food from mildew and deterioration for a long time without damaging food flavor. The paper is made by fusing special monoglyceride, dissolving in the aqueous solution of water and ethanol, and then spraying or soaking on the paper. It can keep the freshness of fruits and can be used to package all kinds of food

most green foods contain a large amount of chlorophyll, which will undergo photosensitive oxidation reaction under light irradiation, leading to food decay. Goldham, a scientist at the Fraunhofer Institute of processing and packaging technology in Germany, recently invented a special method to "dye" plastic films with chlorophyll. After this treatment, the film can be used to package food, which can prevent the oxidation of chlorophyll in green food and greatly extend the fresh-keeping period of green food

at present, the pursuit of increasingly perfect preservation function has become the preferred goal of food packaging. Singapore developed and produced a kind of fresh-keeping packaging paper. This paper contains bacteriostatic and bactericidal agents. Apples stored with this paper will open half a year later, and the fruit will still be full. Another kind of fresh-keeping paper can keep citrus fresh for 3 months and litchi fresh for more than 30 days. Yingde has jointly developed a package using deoxidizing materials on the inner walls of containers and lids. eat up. Excess oxygen, in order to achieve the purpose of fresh-keeping and extend the shelf life of products. The United States has also introduced a composite cap with oxygen absorption function as a beer bottle cap, which can extend the shelf life of beer from months to months

Japan has recently successfully developed a new plastic composite packaging material that can inhibit the production of dioxin. This material is made by mixing PP and talc powder evenly, and then it is made into a container after heating and molding. This material itself will not produce HCl and other gases related to the production of dioxin, and can adsorb and fix the HCl gas produced by other wastes during combustion, so as to inhibit the production of dioxin

American researchers put a plastic film containing a chemical called ain090rb in the food packaging bag, which can remove the oxygen in the packaging and keep the packaged food from deterioration for a long time. The chemical substance is in a dormant state until it is irradiated by special light waves. When exposed to special light waves, the chemical action begins to appear. That is to say, when packaging food, there is no need to carry out complex deaeration treatment, as long as the last process of food packaging is irradiated by special light waves. Russian experts added dehydrated Acidifiers, various mineral salts and enzymes to the polymers of packaging materials. The surface of the packaging bag rich in these substances can absorb the excess water in the packaged food. In case of the above problems, it can kill bacteria, so as to improve the internal environment of the packaging bag. At the same time, the enzymes in the additives can also regulate the smell of food and create a living space for the nutrients in food

4 smart packaging

smart packaging is usually made of photoelectric temperature sensitive, humidity sensitive, gas sensitive and other functional packaging materials. It can display some important parameters such as temperature, humidity, pressure, sealing degree and time of the packaging space. If the sample is to be destroyed (for example, stretching is a promising functional packaging. Sichuan Haodong High Tech Co., Ltd. recently successfully developed a novel anti-counterfeiting packaging film. The advantage of this anti-counterfeiting packaging film is that it is colorless and transparent, and will not affect the patterns on the packaging bags, cartons, iron boxes, and glass bottles of goods. Under light, it can obviously show laser holographic patterns and words that cannot be imitated. If it is used in The automatic packaging production line of commodities can make the overall anti-counterfeiting effect of commodities more ideal. This novel anti-counterfeiting packaging film is colorless plastic film, and the thickness is generally 10 ~ 1001um. On the film, there are concave convex indentation patterns and words with different depths, as well as two-dimensional and three-dimensional geometric figures, which are embossed on the metal plate specially made by laser holography, with a strong sense of three-dimensional and clear layers. The depth of concave convex indentation is generally

warning packaging can indicate whether the food is deteriorated, which is composed of three separation layers: the inner layer is a porous permeable layer, which is in direct contact with the food. If the food is infected with some bacteria that can lead to disease in the work of the experimental equipment, these bacteria can pass through the porous permeable layer and reach the middle layer. The middle layer contains a gel, and bacteria can react with an antibody in the gel to change the color. Then the bacteria will enter the outermost layer, interact with another antibody on its surface, and spread out in the shape of X,

so that the eater can find that the food has gone bad

Australian packaging materials experts have developed a new type of electronic warning packaging. When perishable food is heated at high temperature, and its quality can no longer be guaranteed, the sensor strip on the packaging will change color, and the electronic chip will give an alarm. Electronic packaging technology can also help food exporters who lack fresh-keeping measures. Manufacturers can track and monitor the temperature changes of food transported overseas through satellites, so that their products can be safely exported abroad

a Swedish biological company developed the first intelligent packaging for sports drinks. The cover of this package looks like a sports push-pull latch, which is made of high-density polyethylene and polypropylene. The aluminum cover with plastic coating contains freeze-drying substances, which are sealed at the lower part of the cover. The bottle is a PET bottle with a 28mm bottleneck. When drinking, first take the protective sleeve or ring of the piston sleeve and press the upper part of the cover. When pressing the lid inch, a machine part punctures the sealing aluminum foil, and a small amount of freeze-dried tablets enter the drink. Shake the bottle to dissolve the freeze-dried tablets in the drink and activate the protozoa. Pull the upper part of the lid back and drink it. After drinking, close it

(to be continued)

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