Phosphorescent luminescent pigment characteristics

Afterglow luminescent pigments can maintain visible 1-2 hours. But that depends on the type of excitation light source type and brightness , as well as luminescent pigments , outside light , dark adaptation of the eye , the coating area and visual distance and other factors.
* Excitation light in the ultraviolet content , Photoluminescent Masterbatch the excitation efficiency .
For example: a light source with the same illumination inspired brightness set to 100 units , then tungsten , white fluorescent light , compared with 180 units , and the black lights for 220 units.
* Luminescent pigment excitation time is basically not limited to stimulate the type and brightness of the light irradiation for about 2 --- 3 minutes to reach its saturation excited .
* Luminous pigment because of its brightness powdered paint pigments varies.
Initial luminescent brightness and afterglow luminescent pigment time is about 1.2-1.3 times the GB-U 's .
* Brightness phosphorescent pigment and its particle size increases with increased hiding power and dispersibility but its decline. Optimal particle size and dispersion of light emission efficiency and workability of 19 --- 25um.