What's the principle of making super low temperature ice bags?

Summer is coming, the temperature is gradually rising, more and more products need to use ice bags for low-temperature preservation, a large number of ice bags and ice boxes in the temperature range required for purchasing products have become an important work of most enterprises' purchasing departments, so many friends have a relatively high interest in the production principle of ultra-low temperature ice bags, what is the production principle of ultra-low temperature ice bags?

First of all, we will understand the components of the ultra-low temperature ice bag. The ultra-low temperature ice bag is mainly composed of an ultra-low temperature phase change temperature efficient refrigerant and a corrosion-resistant and freeze-resistant double-layer nylon composite film.

The manufacturing process of ultra-low temperature ice bag is to use a full-automatic refrigerant storage filling machine to quantitatively fill the ultra-low temperature phase change temperature high-efficiency refrigerant developed by Suzhou ante industry into a plastic bag made of nylon composite membrane material. The principle of ultra-low temperature ice bag is to realize constant temperature protection of low-temperature goods through the changing working principle, so as to prevent low-temperature goods from being caused by the outside world. The temperature is high and destroyed.