Photoluminescent Pigment Production Technic Process

Long-lasting glow powder is a special type of crystal structure luminescent material. It has strong absorption, storage and luminescence capabilities. When exposed to natural light and artificial light, the light energy is absorbed and stored, and then slowly released in the form of visible light in the dark. The luminescence can be activated in the dark for 5 minutes and then automatically continues to emit light for up to 12 hours. The absorption process can be repeated countless times for luminescence. The luminescence lifetime is over 20 years. Now let’s take a look at the manufacturing process of the night glow powder.
Features: This is different from the luminescent fluorescent powder. It has no radioactivity, has a long light duration but high luminescence efficiency, low cost, and bright colors.
Equipment: Heating furnace, crucible, ball mill, drying equipment.
Formula:
Red luminescent powder: Barium sulfate 55 g, magnesium sulfate 40 g, lithium phosphate 2 g, copper nitrate 3 g
Blue luminescent powder: Calcium sulfide 63 g, sodium 5 g, potassium sulfate 5 g, strontium sulfate 10 g, sodium chloride 6 g, silver nitrate 1 g, magnesium sulfate 10 g.
Purple night glow powder: Calcium sulfide 63 g, magnesium sulfide 26 g, sodium sulfide 10 g, strontium nitrate 1 g.
Green night glow powder: Calcium sulfide 55 g, potassium sulfide 1 g, sodium sulfide 10 g, barium nitrate 12 g, indium nitrate 13 g.
Yellow light powder: Barium sulfide 55 g, magnesium sulfate 40 g, aluminum sulfide 2 g, potassium nitrate 3 g.
Craftsmanship: There is a good raw material. In the crucible furnace, heat the raw materials at a temperature. The raw materials are placed in the pot, but after that, the raw materials are directly mixed and burned in the furnace at a temperature of 133 degrees for 50 minutes. The incomplete color impurities are removed there. Then, it is placed in a grinding machine to be ground into fine powder, and then soaked in water to precipitate and remove the water. The powder in the water tank can be placed in an oven to dry.
Usage method: Dissolve colorless transparent organic glass in two parts of banana. After 72 hours, add an appropriate amount of water and luminescent powder to apply it to watches, clocks, instruments and handicrafts.