This powder is a type of unradioactive and environmental long after-glow photoluminescent material. Free from any radioactive substance and with strong capability of absorbing-storing-emitting light, the powder can glow in the dark automatically after absorbing varieties of visible lights. Being one kind of additives, it can be added in applied in many medium, such as dope, printing ink, plastic, printing paste, ceramatics, glass, fiber etc. Those luminous products applied of this powder, such as clothes, shoes and hats, stationery, clocks, switches, scutcheons, fishing gear, handicraftsman and sports products, show good effects in illumination, indication and decoration. And the powder also play a good role in many systems, like architectural decoration, conveyance military installations,fire emergency systems(including exit signs, life saving path signs).
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