Reasons for product color difference in mold injection molding

In the production and processing of Mold Injection Molding, thermal injection molding is one of the more common forming methods. The entire process of injection molding and its finished products are likely to encounter various difficulties. There is a problem that has a small impact on product characteristics but a significant impact on appearance, which is color difference. So what aspects generally affect the color difference?

1. Color masterbatch is the key factor causing color difference. The color quality of plastic products immediately depends on the quality of the basic color of the color master. The heat resistance, dispersibility, and covering ability of the color masterbatch are not only indicators for detecting the quality of the color masterbatch, but also have immediate contact with the color difference. Choosing high-quality color masterbatch not only helps to reduce color difference, but also improves the comprehensive appearance of injection molded products.

2. The temperature, working pressure, and melting time during the production process of mold injection molding can also lead to color difference problems. In addition, processing factors such as different batch numbers of materials, different machine equipment, and beer can also affect them.

3. Reducing the temperature of the material barrel has an impact on color difference. During production and manufacturing, it is common to encounter situations where a certain electric heating coil is damaged or ineffective, or a part of the heating control cannot be controlled for prolonged burning, resulting in a strong change in the temperature of the material barrel and causing color difference.

4. Reduce the impact of adjusting the injection molding process. When adjusting the main parameters of the injection molding process due to non color difference reasons, try not to change the injection temperature, condensing type, injection cycle time, and color masterbatch addition amount. Additionally, observe the impact of changing the main parameters of the processing process on the color. If color difference is found, it should be adjusted immediately.

5. If the raw material elements have been removed before production and color difference is found during mold injection molding production, it is only necessary to distinguish the problem of mixing color masterbatch with plastic masterbatch. After establishment, it can be adjusted according to changing the injection temperature or condensing type. It is very easy to ensure that you understand the trend analysis of color tones.