The photoluminescent pigment has two kinds: one is made by activating alkaline earth aluminate with rare earth elements; another one is traditional sulfide-based. Especially alkaline earth aluminate phosphor-based glow in dark pigment, This material is characterized by performances such as light absorption, light storage and light radiation and can glow in darkness for 12 hours continuously after it has absorbed various visible lights for 10-20 minutes. Its luminance brightness and duration is at least 30 times of traditional luminescent materials represented by ZnS:Cu, and can be used repeatedly. The test results issued by National Institute of Metrology (NIM) demonstrate that the product is nontoxic, radioactive free, and has stable chemical performance. It can be made into various photoluminescent products, and have been widely applied to fire prevention, place-name signs, household electric appliances, clocks and watches, finery, garments, craftworks and gifts, and so on.
Applications:
1. Luminous paint: Propylene kind, alcoholic acid kind, epoxy resin type of varnish is recommended to use.
2.Coating: Coating has its own coating powder-general phosphor powder, made by special coating treatment.
It can prevent the hydrolysis and improve the storage time of the luminous coating.
3.Plastic: Luminous powder can be added in the molding of plastic or light-emitting plastic film panels, light-emitting plastic toys, plastic light-emitting Signs, etc.
4.Also used in ceramics.
5.Mixed with synthetic resin crafts molding.
6.Cosmetics use: glow nail polish.
Characteristics of Photoluminescent Pigment: 1.Contains no toxin or radioactive element, harmless to humans and the environment; 2. Has less restriction on excitation light source. As long as the light intensity reaches 25LX, it can be used as an excitation light source, and in general buildings the light intensity can get to 500LX and above. Therefore, sunlight, general lighting, surrounding stray light can be used as excitation source. 3.Able to produce high-luminescence afterglow in the next 12hours after 10-20 minutes of exposure under the light, which is 30 times of that produced by traditional phosphor; 4.Possesses excellent physical and chemical properties, can be used outdoors or in extreme environment, able to resist ultraviolet, and maintains its performance basically after thousand hours of exposure to 300W high-voltage mercury lamp. It demonstrates sound ability in resisting chemical corrosion and can be applied in a wider temperature range (-20 to 500℃). 5.Available in multiple photoluminescent colors including red, yellow-green, blue-green, blue, and purple and appearance colors; 6.Long service life (> 15 years) and its characteristics (light absorption, storage and radiation) can be infinitely reused; 7.Can be processed into products in different grain sizes (5 - 200 um) corresponding to different industrial requirements.
2.Photoluminescent powders in general grain sizes usually have better luminescence. However, it is recommended to select the photoluminescent pigment of proper granularity in accordance with your specific manufacturing process.
3.As the photoluminescent pigment has heavier specific gravity, it has to be particularly mixed until it is evenly blended. 4. It should be stored in ventilated and dry environment. Moisture prevention is required. If the pigment can not be used up in one application, it should be sealed during storage.
5.Metallic materials will give significant influence on its luminescent performance; therefore, it should be ground by avoiding metallic materials as practically as possible.
Photoluminescent Pigment Packaging, Transportation, and Storage: 1. Packaging: The standard package of the product composes of inner plastic bag (1 kilo/bag) and external plastic barrel (25 kilos/barrel). Packaging in other forms can be used to customer’s specific requirements. 2.Transportation: Measures should be taken to prevent corrosion, extrusion, sun and rain. 3. Storage: It should be stored in ventilated and dry environment. Anti-moisture measures are particularly required.
