Glow-in-the-dark stickers are harmless.

Glow-in-the-dark stickers are non-toxic, harmless and non-radioactive. It requires no power supply and is an energy-saving product. Other material-related products include tempered glass, PVC, PET and other luminous safety exit direction labels.

Glow-in-the-dark stickers, also known as luminous signs and luminous signs, are made of light-storing self-luminous materials, which have the function of absorbing and storing light. The bright areas absorb visible light such as sunlight and lights for 20 minutes, and can continue to glow for more than 12 hours.

Extended information:

The principle of luminous stickers:

The luminous paper is coated with fluorescent materials, and there are two principles of its luminescence:

< p>1. It uses natural minerals that can store light. When there is external light, it absorbs part of the light energy and stores it. When the outside world becomes dark, it naturally releases part of the stored light energy, thereby producing a luminous effect.

2. Non-woven fabric is used as raw material. After being irradiated by a purple light, it will produce a luminous effect, because the tool of purple light must be used.

The fluorescent substances currently used are mainly white powders of zinc sulfide or copper sulfide. When exposed to light, it absorbs a small amount of energy. After leaving the light source, it emits a faint fluorescence, which is green.

People often add a very small amount of activators to the above-mentioned fluorescent substances: adding 1/10000 of copper chloride and copper nitrate can enhance the brightness; adding substances such as manganese chloride or silver nitrate will cause the fluorescent material to emit light Different colors of light.

Baidu Encyclopedia - Luminous Labels

Baidu Encyclopedia - Fluorescent Materials