Nowadays, the application of plastic casings has become widespread. For example, electrical shells, as well as our commonly used washbasins, are all plastic, but when plastic processing, color instability is a common problem.

1. First of all, the color instability is related to the high and low temperature of the injection molding machine. Therefore, it is necessary to check the priority when processing the plastic casing.
2.sometimes the instability of the production cycle, will also cause color changes.
3. When mixing, the toner and raw materials are not mixed according to the mixing process. For example, the time is insufficient, the feeding method or the order of feeding is inconsistent, resulting in uneven color distribution, which is one of the causes of color instability.
4. Because the humidity of the raw material is too high, the viscosity inside has not spread, and finally the color of the plastic processing is unstable.
5. The return amount of the degraded material is unstable, which has a great influence on the light-colored injection molded parts.
6.Due to the different ground color of each raw material, the color of the same toner injection molded parts will be different.
7.If the quality of the toner is too bad, it is not heat-resistant or the toner that is not suitable for the raw material will make the color unstable.