Is the color changing cup harmful to drinking water?
The color-changing cup is a creative and romantic cup. Although it is fun and magical, everyone is more concerned about whether the color-changing cup is harmful to drinking water and what is the principle of the color-changing cup. Then let ’s take a look together!
1. What is a color changing cup?
Color changing cup, also known as magic cup. That is, if hot water / cold water is poured into the cup, the color of the cup will change. The colors before the color change are black, red, yellow, green, blue, brown, purple, light blue, light yellow, light green, and red. , Lilac, pink, etc. Including the dot effect, it can be designed as the surface layer of the color changing cup.
Second, is it harmful to drink water in a discolored cup?
Inside is heat-sensitive material. It emits radiation, and the exterior is colored with glaze. There are also radiant metals, but they are extremely trace amounts. It is okay to use it for a short time. Do not use it for a lifetime.
2. Classification of color changing cups
(1). Thermochromic cups (the most common), as the name implies, will start to change color when it encounters hot water with a temperature of more than 40 degrees, showing the printed pattern.
(2). Color-changing cup with water (currently less), that is, it can change color when it encounters water, of course, it refers to low-temperature water instead of hot water.
(3).Cold color changing cups (currently few), cold color changing cups change color when the temperature is below 20 degrees Celsius.
What is the principle of color changing cups
The color-changing cup can change color without its unique structure. The color-changing cup is composed of two parts, an outer cup and an inner cup, which are coaxially arranged, and a thermosensitive color-changing volatile liquid is filled between the bottom ends of the two cups. In the sandwich cavity, the outer wall of the inner cup is engraved with an artistic graphic channel that communicates with the inner cavity of the layer. After the drinking cup is poured with hot water, the heat-sensitive liquid in the sandwich cavity will change color and rise to the inner cup graphic channel. In order to make the cup wall show an artistic pattern, people can obtain beauty and artistic enjoyment. Therefore, the discoloration of the color changing cup lies in this heat-sensitive coating structure, and the color changing cup is completed inside the cup wall, which is a pure natural physics. The reaction itself is fun, non-toxic, harmless, and pollution-free. Because the temperature-sensitive materials used are printed on the cup body, the materials used are imported high-quality heat-sensitive materials, which can reach high temperature 320 degrees Celsius, non-toxic and lead-free. It is chromium-free and can meet European FDA standards. At the same time, the heat-sensitive material is completely isolated in the inner layer of the cup, and it does not contact the beverage in the cup, and it will not cause pollution.
It is completely a closed space, and the heat-sensitive material cannot run out, so it can be used unlimited times. Due to technological breakthroughs, the scope of the current color-changing cups is continuously expanding: black color-changing cups, red color-changing cups, blue color-changing Cup, green, brown, purple, light blue, light yellow, light green, light red, light purple, including dot effect, or black color changing cup technology is more mature, the effect is the best