Patent ID: 9120256
Filing Date: 2015-09-01
Classification: B29C

Abstract:
1. An injection molding method comprising the steps of: causing a long film to travel between a first die and a second die while applying tension to the film including a base film, and positioning the film between the first die and the second die, the film having a surface tilted with respect to a parting face of the first die; closing the first die and the second die; forming a molded article with a transfer film by injecting resin into a cavity formed by the first die and the second die that hold a part of the film, the transfer film being transferred from the base film; opening the first die and the second die; and separating the base film from the first die so as to tilt the surface of the film with respect to the parting face of the first die, wherein tension applied to the film gradually increases in multiple steps when the base film is separated from the first die.