Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. Often it is the case where the emitted light has a longer wavelength than the absorbed radiation. The fluorescent surface will absorb the wave of light and then release it in the form of a long wavelength electromagnetic wave. This results in a brighter, visible and often more colorful light to the viewer.More +

The selection criteria for dyes used in masterbatch colorant should not only include the related technical standards of the pigments, but should also refer to the interactions between the polymers and additives. The processability and performance demands of the application need to be considered. These factors include things such as heat resistance, migration fastness, weather fastness, and solvent resistance. The dye selected should be brightly colored, fade resistant, and durable. The required performance and evaluation methods of the dyes used for masterbatch are detailed in the sections below.More +

When dyes are added to paint, sometimes problems can arise when the pigments do not disperse evenly. Flocculation, dull colors, low transparency, and rheological stability issues can be avoided when using properly designed dyes like those produced by Wanlong.
In theory, good dispersion means that each pigment particle of the paint will mix evenly and prevent flocculation. That is to say, each pigment particle will be surrounded by a thin layer of paint binder or solvent instead of particles sticking to one another. However, achieving this level of completely uniform dispersion is not possible. Despite this fact, we work hard to get achieve perfection even though we know all we can do is come extremely close. More +