Never spray paint plastic toys or products, ten products have two at the time of printing design is not complete, also is not oil, is a normal phenomenon. For injection molding machine in the process of production of toys, each dozen products to steel surface spraying mold release agent, release agent had just spray mold first product or second product surface has a lot of mold release deposit, if this product without water or water to clean that wash a face that day, for pad printing directly, this phenomenon will emerge.