The body color of this series is milky white or grayish white . It has the most outstanding brightness performance, with a minimum visual perception of 8-10 hours in a completely dark indoor environment after fully charged (Purple is an exception with weaker brightness). High brightness grade can reach 10-12 hours. This series is suitable for products which need high brightness and long-term illumination for a few hours.

This series present a variety of body colors during the day, but the luminous brightness is lower and the afterglow is shorter. They can be perceived by the naked eyes for about 2-3 hours in a completely dark indoor environment after fully charged. They are suitable for products requiring colorful appearance in daytime, and can accept lower and shorter glowing performance. The applications include clothing patterns, toys, accessories, and craft items etc.

This series is a physical mixture of Natural Color Series and different fluorescent powders. Customers can also mix according to their own specific needs.

The body color of this series is milky white or orange-red (The two orange-red powders have a distinct odor which are not used widely). Since this series has the weakest afterglow and the shortest luminous time of only ten minutes to half an hour, and its price is the highest one among these three series, it is usually suitable for high unit-value products such as art painting，jewelry and luxury accessories.

For ordinary dying pigments, customers only need to get the color card and choose what they like, but glow in the dark pigment can not be like this. The different glowing colors have different characters and performance. The choice of color is determined by the usage. Communication with customers will focus on their specific needs for the end products, including daytime body color, brightness requirements, production methods, and budgets etc, to ensure the accurate selection of applicable colors.

4.5.1 Basically, for dyed glow powders, the body color and glowing color are nearly the same, but there are a few exceptions.

4.5.2 Take the Pink-Red dyed glow powder as an example. This glow powder is made by natural Yellow-Green with pink fluorescent powder physically mixed together.

For body color: the natural yellow-green has a milky white body color, but when mixed with pink fluorescent powder, the base color appears pink, which is the pink-red color.

For glowing color: The natural Yellow-Green emits a yellow-green glow. However, when mixed with pink fluorescent powder, the two colors combine through together, resulting the final glow color as orange.

4.5.3 This example shows that some dyed glow powders may have a different body color and glow color. This phenomenon is determined by the properties of light combination, and it’s important to keep this in mind when using these powders in practical applications.

Solutions:

In the mixing process, the viscosity of the resin can be adjusted by adding thickeners, anti-settling agents and other additives to effectively inhibit the settlement of luminous powder. When implementing viscosity adjustment, the following three key factors need to be considered comprehensively:

1. Resin properties: Different chemical composition, molecular structure and physical properties will lead to different viscosity, and they may have different response to the thickening agent and anti-settling agent. It will significantly affect the final system viscosity regulation effect.
2. Glow in the dark powder particle size: Glow in the dark powder with larger particle size may need higher system viscosity to maintain its suspension state, whereas the finer particle powder can be stabilized with lower viscosity resin.
3. Proportion: The proportion of glow in the dark powder will have an important effect on the rheological properties of the system. When the proportion is high, the viscosity of the resin needs to be adjusted higher to prevent settling.