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Convenient packaging of food packaging design

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the convenience of food packaging is also an aspect that can not be ignored in the development of food packaging. Consumers need more convenient packaging for opening and sealing. At the same time, they also need food packaging, which can bring more convenience to life. Convenience is a new development trend of food packaging
for the convenience of consumers, the principles of light energy, chemical energy and metal oxidation are used to realize automatic heating or automatic cooling of food in a short time, so as to meet the needs of outdoor workers, tourists, the elderly and children. For example, the self cooling beverage can in the United States contains a small container of compressed C02. When it is opened, the volume of C02 expands rapidly, which can reduce the beverage temperature to 4.4 ℃ within 9s. Based on the principle of heat production by mixing quicklime and water, Japan has developed a self heating packaging of sake, which can heat a can of sake to 58 ℃ within 3 minutes. Riqing company has developed a self heating instant can based on the principle of metal oxidation, which can cook the noodles in the can in 5min. There is also food insulation paper, which can convert light energy into heat energy. The food can be heated by putting the paper package in the place exposed to the sun. Self heating or self cooling cans produced by Japanese food manufacturers are mainly used for the packaging of coffee, thick soup, rice porridge, noodles, sausages, rice wine and beverages. They have been mass produced and put on the market. The can is made of composite plastic or aluminum, with food or beverage in the upper part and heating or refrigeration device at the bottom. The force mouth heat is realized by mixing water with quicklime to produce heat; Refrigeration is obtained by the chemical reaction between water and ammonium nitrate or ammonium chloride
in order to facilitate infant feeding and medication for the elderly, the development of thermosensitive color development packaging is becoming more and more important. Heat sensitive color developing packaging materials can be made by injecting heat sensitive chemical elements into PE. The packaging containers made of this packaging material will show different colors when holding food at different temperatures. When using, consumers only need to look at the color of the package to judge whether the food is suitable for consumption. In the past, food packaging containers were often made very tight in pursuit of sealing. It was very inconvenient to open and destructive. Food must be eaten in time after opening. With the improvement of technology and the renewal of materials, easy to open and easy to seal packaging containers have developed rapidly because of their convenient use. On the one hand, easy to open and easy to seal materials such as composite plastic film and aluminum plate are used to replace the past tinplate; On the other hand, the old round cans and roll sealed glass bottles are partially replaced by cans, self sealing bags, easy to open cans and rotary glass bottles. In addition, in order to meet the requirement that athletes can drink without stopping during sports, a packaging company in the United States has designed and produced a push-pull bottle cap. The bottle cap is designed with a sip bottle mouth, which is clamped on the water bottle holder of the bicycle for consumers to drink when cycling
a Canadian company that has been engaged in meat food processing for a long time has developed a new polyester material packaging. The top is sealed by thermoformed polyvinylidene chloride coextrusion film, so that consumers can open the packaging immediately without difficulty and enjoy the delicious taste of fresh meat food. Austal dairy modified the half gallon herringbone roof milk beverage box, opened the top of the milk packaging box, and applied a screwed internal thread cap in the well to make the milk beverage box easier to open. The bulk butter shall be sealed and packaged to avoid the problems of cumbersome weighing and difficult cleaning of containers. The method is to put the aluminum foil bag marked with the metering line into the pet box, pour the viscous butter into the aluminum foil bag, and then fill nitrogen to seal. The sealing material is aluminum foil as the base material. When taking, tear off the aluminum foil, take it according to the metering line on the aluminum foil as needed, and then cover the attached pet box after taking it

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