A Cooler bag, or ice bag, is a bag that holds heat, mainly for hot or cold food. The principle of the ice pack is to use certain chemical properties to achieve the purpose of cold storage and cooling. Its main contents are cold storage materials such as sodium polyacrylate, and some other substances are added. The ice pack has the characteristics of large cold capacity, non-toxic, tasteless, non-corrosive, non-reflective and elastic, and its effective cold capacity is 3 to 4 times that of ice, which can be used repeatedly.
Ice packs are widely used in daily life, such as family picnics, recreational fishing, camping parties and other scenes, and are often used for outdoor travel to keep food fresh, cool down the summer, and preserve and transport. At the same time, it is also widely used in North America, is the United States primary and secondary school students, white-collar workers and truck drivers and other people to pick up lunch or carry food commonly used items.
In addition, there is A low-temperature vacuum bag, also known as the ice bag vacuum bag, is a vacuum packaging that will extract all the air in the bag and seal, this packaging helps to prevent food deterioration, reduce the loss of vitamin A and C.
In short, the cooler bag is a practical insulation tool that can provide convenience for us both in outdoor travel and daily life.
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