Plastics coloring, which is generally carried out using a pigment, either organic pigments, inorganic pigments may be, what is the use of specific, are mainly looking at the color intensity and brilliant degree requirements, and the need to achieve what effects. Therefore, this work is very important because its use is relatively more. Pigments they use, we can call it a colorant. And coloring agents, it is one of the Website, so the following small series to talk about this aspect.

In the coloring agent, the size of coloring power, which will determine the amount of colorant. And generally speaking, the organic than inorganic better. However, no matter what kind, the dispersion is better, that is, when the coloring agent in the polymer to fine particles uniformly dispersed state, then, to be able to have a good coloring effect. Moreover, when the particle fineness which meet the requirements before they can reflect the good optical effect.
Migrating colorant, which is mainly of three types, which are specifically as follows:
Solvent extraction: that is its bleeding in water and organic solvents.
Contacts migration: it can cause pollution between adjacent objects.
Surface spray cream: mainly because the solubility of the colorant thermal processing time is relatively large, but it is at room temperature, the solubility becomes small, resulting in crystallization caused.