Solve the problem of raw edges of PVC keychains

The PVC keychain has burrs, which means that the mold is not handled well. What solutions are available in the PVC keychain factory? 

PVC key chain is made by putting raw materials into a mold and forming it by high temperature oil pressure. The raw material in a hole is definitely heavier than the product after molding. The extra raw material will be burr. After the burr is processed, a line can be seen faintly.

Optimized design for the mold makes the demolding and tearing easier, which improves the production efficiency by up to 40%. In addition, the cause of the uncleanness of the PVC keychain's burrs may also be some uncomfortable operations by the operator, such as: excessively thick raw materials, short molding time, and low molding temperature.