The Secret Of Coloring Plastic Bottles

The plastic products we usually see are colorful, and you may have questions about how these plastic products are colored? And why is it fading?

How are plastic products colored?
The coloring of plastics is actually very simple. It is to mix a certain amount of coloring materials with natural color plastics evenly to obtain an overall uniform color, but in fact there are other requirements for plastic coloring, such as improving the light resistance of plastics. Increase the antistatic properties of plastics, which can be solved by color matching.

Why do plastic colored products fade?
The fading of plastic products is also related to the light resistance, oxidation resistance and heat resistance of the toner. If the light resistance level is poor, the plastic products will fade quickly. If the heat stability of the pigment is poor, the pigment will change color and fade. Some postal pigments will gradually fade after oxidation due to degradation of macromolecules or other changes.

What problems should be paid attention to when plastic coloring?
The types of pigments selected should be as few as possible, pay attention to the shade of the pigments, choose pigments with the same performance, and the thermochromic effect of the pigments.