New packaging

● Lunch boxes that can be raised or lowered at will A German company produces a new type of lunch box that can be frozen and heated. The lunch box is equipped with semiconductor components and has two plugs. One is cooling down, plug in the plug, the food in the box can be reduced to 0 °C, even in hot summer, the food will not deteriorate; before eating, plug in another plug, the food quickly heated to 85 °C, when the hot food that is fragrant is available for people to enjoy.

● Household cold-keeping food bags A Japanese company introduced a new type of domestic cold-preserved food bags to the market. It is a double-layer vinyl plastic bag, 20 centimeters long and 16.5 centimeters wide. It is filled with a polymer absorbent polymer coagulant in the outer bag. The inner bag has micropores on the surface and is fitted with a Root suction pipe. Before use, put it in water for 15-30 minutes so that the water slowly infiltrates to form a gel-like coolant. When traveling abroad or carrying out sports activities in the wild, frozen food taken from the refrigerator can be put into a cold-keeping food bag, which can not only be carried around but also kept cold for a long time, and the cold food is not easily deteriorated.

● Automatic Inflatable Packaging Bag A Japanese company produced a new type of automatic inflatable packaging bag. Compared with ordinary bags, these bags are 90% lighter in weight and have the properties of waterproof, heat insulation, collision resistance, high temperature resistance, etc., and are suitable for packaging various articles.

● Preventing the packaging of goods from being stolen In recent years, the phenomenon that packaging products have been stolen has often occurred in Japan. For this reason, Japanese experts have developed two new types of packaging technologies: One is the signal display that the packaging is intact It is green, such as Kaifeng, it becomes red; the other is to put the ferrous oxide powder of the packet into the package, and at the same time install another oxygen indicator icon in the transparent cover. Once it is opened, the oxygen-free environment in the package is affected. Destruction, ferrous oxide becomes iron oxide, and the icon changes color.

● New food packaging A new type of packaged pastry food has emerged in the Swiss market. It is a layer of jelly or vanilla pudding sandwiched between two thin cakes, packaged in a covered PS plastic injection tray. To open the package, remove the frozen pastry, just turn the plastic plate over and pull the pull-tab molded on the edge. The edge of the bowl will be torn off and released in vacuum. The plate can be easily removed from the pastry. , And leave the pastry on the reversed lid for food.

● New technology for long-term storage of goods A French company has developed a new technology for the long-term preservation of goods. The article is placed in a cuboidal plastic bag made of polyethylene (the bag has a capacity of 1100 liters and weighs 12 kilograms). The bag is then sent to a vacuum chamber where air and moisture have been completely extracted, and the robot can hold the bag surface. The pores are blocked. Items such as cement, grain, coffee, flour, cheese, and dried fruits preserved by this method are still intact as early as two years later, and quality is not affected at all, such as grain, neither worms nor mildew.