What is glow in the dark pigment?
Glow in the dark pigment, also known as phosphorescent pigment, is a special type of pigment that can absorb and store light energy from various sources and emit it as a visible glow in the absence of light. It contains phosphors, which are substances capable of absorbing and re-emitting light. Glow in the dark pigment is widely used in coating.
The Luminescent Powder's Luminescence Principle and Physical Parameters
Luminescent powder, also known as phosphorescent powder, is a special type of fluorescent material that has the ability to absorb energy under light and emit visible light in dark conditions. Its luminescence is primarily based on the phenomenon of phosphorescence.
The luminescence process of luminescent powder is as follows:
The physical parameters of glow in the dark pigment powder
The physical parameters of a specific glow in the dark pigment powder can vary depending on the specific type and composition. The following are the physical parameters commonly associated with luminescent powders and the properties they exhibit in coating applications:
Particle Size: The particle size of the luminescent powder can range from a few microns (µm) to tens of microns. The size of the particle size affects the dispersibility, brightness and performance of the powder.
Color (Color): Luminous powder can present different colors, such as green, blue, yellow or orange, etc. The color is determined by the phosphor composition in the powder.
Glow Duration: Glow Duration refers to the length of time that the glow powder can continue to glow after charging. Glow time can vary from a few minutes to hours, depending on the quality and type of powder.
Glow Intensity: Glow Intensity refers to the brightness of the visible light emitted by the luminous powder. The luminous intensity is affected by many factors, such as powder composition, concentration and activation method.
Specific Gravity: Specific gravity is a measure of the density of a substance relative to the density of water. The specific gravity of luminescent powder is usually within a certain range, and the specific gravity can affect its behavior during mixing, application and sedimentation.
Chemical Composition: The chemical composition of the luminescent powder can vary depending on the type of phosphor used. Common compositions include rare earth elements such as europium, dysprosium, or terbium, as well as other compounds or dopants.
It's important to note that the exact numerical values for these physical parameters can differ depending on the specific product and formulation. When considering glow in the dark pigment powder, it's advisable to consult the product specifications provided by the manufacturer or supplier to obtain precise information about the physical parameters of the specific glow in the dark pigment powder you are interested in.
Properties exhibited by glow in the dark pigment powders in coating applications
Charging characteristics: glow in the dark pigment powder can be charged by absorbing the energy of an external light source, and emit visible light in dark places.
Glow time and intensity: The glow time and intensity of glow in the dark pigment powder in the coating can affect its visibility and persistence in dark environments.
Stability: glow in the dark pigment powder should have good light fastness, heat resistance and chemical stability to ensure its long-term luminous performance and color stability.
Dispersion: the glow in the dark pigment powder should have good dispersion in the coating to ensure uniform dispersion: the glow in the dark pigment powder should have good dispersion in the coating to ensure uniform distribution in the coating In the system, avoid particle aggregation or precipitation.
Transparency and Coverage: Should have appropriate transparency to be compatible with the coating substrate and exhibit good luminescence. At the same time, it should also have a certain coverage to ensure a uniform luminous effect on the surface of the coating.
Durability and stability: the glow in the dark pigment powder should have good durability, be able to maintain the luminous effect for a long time, and not easy to fade or decay. In addition, it should be stable against external factors such as humidity, temperature and chemicals that can affect its performance.
Health and environmental protection: glow in the dark pigment powder should comply with relevant health and environmental protection standards and contain no harmful substances to ensure safety and sustainability in coating applications.
These physical parameters and characteristics are important in selecting a glow in the dark pigment powder suitable for a specific coating application. When selecting and using glow powders, it is advisable to refer to the product specifications provided by the manufacturer or supplier for accurate information on the specific glow in the dark pigment powder and to ensure its suitability for the desired coating effect and performance requirements.
Glow in the dark pigment used for coating：
In order to gain a competitive edge, an increasing number of manufacturers are incorporating phosphorescent pigments, commonly known as glow-in-the-dark pigments, into their coatings. From a market perspective, let's explore the various applications of luminescent coatings and their market prospects.
Market prospects for glow-in-the-dark coatings are promising. The demand for these coatings is driven by several factors, including increasing safety regulations, growing interest in unique aesthetics, and the need for innovative marketing and promotional materials. Moreover, advancements in technology have led to the development of long-lasting and environmentally friendly phosphorescent pigments, further fueling market growth.
How to use photoluminescent pigment in the manufacturing?
In the production process, luminescent pigments can be added to the desired materials or products in the following ways: