Noctilucent powder series are a new type of optical storage, luminescent material. After absorbing ultraviolet and visible lights, they can steadily and permanently send out soft light. This new type of light-emitting material, if under the sun or indoor light for 10-30 minutes, will gradually store energy till saturation. When stopping to shine it, it can independently light as long as 4 to 12 hours. Because of stable physical and chemical properties, it can serve more than 10 years, and it has the advantages of being harmless, non-toxic and non-radioactive, etc.

According to the requirements of various industries, all sorts of color luminescent powders can be obtained through dyeing the surface of the luminous powder and coating processing. The following points should be noticed in the processing.
1. Properly increase the temperature at the feed section.
2. The speed of the host should be 15% to 20% higher than the normal speed so as to improve the material speed.
3. When the materials are to be mixed, friction should be reduced in case the luminous effect is affected.