Article 1028 of the "Fire Code for Building Design" stipulates that the evacuation aisles and main evacuation routes of the dance and entertainment venues, underground stores and the ground or the wall near the ground should be set up with luminous evacuation signs. The design of high-rise civil bui

In our daily life, people find that adding luminescent pigments to injection molding products can make them glow in the dark. In the early days, the production technology was not mature, and the finished products would have a high chance of blackening.

Covering powerWhen an object is coated with a certain paint, the ability of the pigment in the paint to cover the base color on the surface of the object to be coated, so that the base color can no longer be revealed through the paint.Covering power = pigment mass (g) / surface area of the object to

Fluorescent powderis fluorescent because it contains fluorescent dyes. The following explains the changes that the fluorescent dye molecule undergoes during fluorescence.