| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an in-mold coating method which can improve the adhesion of a coating material and a resin molding even without using special equipment and a mold. <P>SOLUTION: In the in-mold coating method including the injection step of injecting a coating material for coating the surface of the resin molding into the mold and the dwelling injection step of injecting the coating material into the mold while pressure in the mold obtained in the injection step is made to be close to a target value, the dwelling injection step comprises a standby step in which the injection of the coating material into the mold is stopped, and a pressure drop in the mold by the contraction of a resin is expected when the pressure in the mold exceeds the target value in the standby step and the adjustment step in which the coating material is injected until the pressure in the mold reaches the target value when the pressure in the mold is below the target value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
