Effects of insert film on asymmetric mold temperature and associated part warpage during in-mold decoration injection molding of PP parts

In mold decoration (IMD) injection molding is a relatively new multi-process technique that has been used for improving the surface quality and achieving colorful cosmetic surface of molded parts. During IMD processing, the film having the same shape as mold cavity is first inserted into the mold then molten polymer is injected into the cavity. Heat transfer in the cavity surface is significantly retarded because of the low thermal conductivity...