| 摘要 |
PURPOSE:To inexpensively develop a pattern on a polypropylene resin surface, by subjecting a part in the form of the pattern of the polypropylene resin surface to a plasma treatment, then applying a coating material to the surface, and releasing the thus coated film exclusive of the plasma-treated pattern area. CONSTITUTION:A pattern base 6 provided with a vacuum chamber 8 on the rear side of a pattern 7 is brought into close contact with a polypropylene resin surface 9, and a vacuum pump 11 and a plasma-generating furnace 12 are connected to the vacuum chamber 8. After evacuating an air-tight chamber, a plasma treatment is conducted, thereafter the pattern base 6 is removed, a coating material is applied to the resin surface 9, and is dried. Then, the coated film at parts not subjected to the plasma treatment is released from the resin surface 9 by a water jet, leaving the coated film only at the part subjected to the plasma treatment, whereby the pattern can be developed. |
