Bracelet is a kind of circular decoration on the wrist. Since ancient times, bracelets made of gold, silver, jade and other materials have been sought after by the public. With the development of technology, more bracelets of different materials have appeared on the market. Among them, the photochromic silicone bracelet (light-changing bracelet) is a fashionable element with various color changes, which meets the needs of users who pursue personalization.

Bracelets have a large market as small accessories in the jewelry category. Beautiful and fashionable bracelets can always attract the love of female consumers. However, the color of ordinary silicone bracelets will not change in any environment, and this immutable limitation can no longer meet the diverse needs of current consumers. The light-changing silicone bracelet is different. Although the raw materials and processes are similar, a certain amount of photochromic powder is added to the original silica gel raw material, thereby realizing the process from colorless to colored, and colored to colorless. Periodic changes. This optically variable pigment is a product processed by microencapsulation technology. The appearance is powder, the particle size is between 1-10um, and it has the characteristics of high temperature resistance and oxidation resistance.

The color changing principle of photosensitive toner is to absorb the ultraviolet light source of a specific wavelength, then the energy and color of the light source are convenient, and when the ultraviolet light source of the specific wavelength is not available, it will return to the original color. Therefore, the photochromic silicone bracelet is no different from ordinary silicone bracelets when there is no ultraviolet light source in the room, but in the outdoor environment with ultraviolet rays, it will produce color changes. There are currently five basic colors of photochromic powder on the market, namely purple, blue, yellow, orange and red. The photochromic silicone bracelet can be added with different colors of photochromic powder according to customer requirements. Of course, it can also be mixed with different toners to create more diverse color variations.

The amount of photosensitive colorant added to the photochromic silicone bracelet, usually 0.2%~5.0%, is processed to wet the rubber compound, and then the colorant is added to the rubber compound and stirred. Pay attention to dispersion during stirring. If the dispersion is not good, you can add an appropriate amount the dispersant.

The photochromic silicone bracelet is favored by many users because of its changeable colors. At the same time, users can also choose their favorite colors and styles according to their own preferences.