The secret of making clothes shine is nothing more than starting with materials. At present, there are three common luminous clothing technologies in the market: the first is to use fluorescent powder, the second is to use reflective materials, and the third is to use luminous fiber fabrics to make clothes glow in the dark. Although these three materials can make clothes glow, their luminous effects and principles are quite different. Phosphors (commonly known as luminous powder) are usually divided into light energy storage luminous powder and radioactive luminous powder. Light energy storage luminescent powder is a fluorescent powder that obtains light energy and stores it under the irradiation of natural light or other ultraviolet rays. When the light stops, the fluorescent powder will slowly release the stored light energy in the form of fluorescence, so the light can still be seen for hours in the dark environment. Radioactive phosphor is a mixture of radioactive substances of phosphor, which is excited by radiation emitted by radioactive substances. This kind of phosphor has a long luminous time, but it is toxic and harmful to human body and will pollute the environment because it is doped with radioactive substances.