| 摘要 |
PROBLEM TO BE SOLVED: To obtain a highly glossy molded aritlce by a method wherein at parison, against the outer surface of which a thermoplastic resin powder is sprayed, is pinched between both molds so as to be blown and, a the same time, the molds are heated up to the softening temperature of the thermoplastic resin or above so as to decorate the surface of the molded article. SOLUTION: In response to the hanging down of a parison P from a die head 2, a thermoplastic resin powder is sprayed against the parison P through an injection nozzle from a resin powder spraying device 10. When the parison P is hung down to a predetermined position, the parison P is clamped with both molds 8A and 8B. When the temperature of the parison becomes the temperature near the softening temperature of the thermoplastic resin powder and the surface of the parison S is brought to a softened and melted state at the cavity surfaces of the molds 8A and 8B, the surface of the parison is pressed against the cavity surfaces of the molds so as to be transferred to the cavity surfaces of the molds. At the same time, by blowing the pressure air through a blowing pin 15 into the parison P, the thermoplastic resin powder is fused into the surface of the parison to be an integral body under pressure. |
