Classification of color-changing water cups:
1, thermal color-changing cup: it will start to change color when it meets hot water above 40 degrees, showing printed patterns.
2. Color-changing cup in case of water: it can change color in case of water, which of course refers to low-temperature water instead of hot water.
3. Cold color-changing cup: The cold color-changing cup changes color when the temperature is lower than 20 degrees Celsius.
Color change principle:
1. The color-changing cup consists of an outer cup and an inner cup which are coaxially arranged, and an inner charge is arranged between the bottom ends of the two cups.
2. The outer side wall of the inner cup is engraved with an artistic graphic channel communicating with the inner cavity. After the drinking cup is filled with hot water, it is in the interlayer cavity. The heat-sensitive liquid will change color and escape from the graphic channel of the inner cup, so that the cup wall presents artistic patterns, which makes people get aesthetic feeling and artistic enjoyment. Therefore, the color change of the color-changing cup lies in this heat-sensitive coating structure. The color-changing cup is completed inside the cup wall, which is a pure natural physical reaction and a non-toxic, harmless and pollution-free fun toy.
3. Because the temperature-sensitive materials used are printed on the cup body, all the materials used are imported high-quality temperature-sensitive materials, which can reach the high temperature resistance of 320 degrees Celsius, and are non-toxic, lead-free and chromium-free, all of which can meet the European food FDA standards. At the same time, the heat-sensitive material is completely isolated in the inner layer of the cup, which is completely out of contact with the beverage in the cup and will not cause pollution.
4. It is a completely closed space, and the heat-sensitive materials are inexhaustible, which can be used indefinitely.