Nowadays, the application of plastic products has become widespread. In life, we are very common. For example, electrical shells, as well as our commonly used washbasins, are all plastic, but when processing plastic products in Dongguan, Color instability is a common problem.
1. First of all, it is necessary to check the temperature of the injection molding machine, the color is unstable, and it is related to the temperature of the injection molding machine. Therefore, when processing plastic products, it is necessary to check first.
2, sometimes the back pressure is too large, the production cycle is unstable, the production cycle is unstable, and when the time is open, the color will change.
3, the mixer does not mix the toner and raw materials according to the mixing process, such as insufficient time, feeding method or the order of feeding is inconsistent, resulting in uneven color, which is one of the reasons for color instability, so, processing It is also important to check when injecting the casing.
4, due to the humidity of the raw material is too large, the viscosity inside has not spread, it will cause the instability of the processing color of plastic products.
5, the amount of water return material is used for a long time, which has a greater impact on light-colored plastic products.
6. The grades of raw materials are inconsistent. Because the color of each raw material is different, the color of the same toner plastic product will be different. Sometimes the same supplier, the batch number is different, the background color will be somewhat biased, so the product with high color deviation requirements, even to control whether the background color of each batch is consistent.
7. If the quality of the toner is too bad, it is not heat-resistant, or if the toner used in the wrong material is not suitable, the color will be unstable.