Injection of thermoplastic resin onto rear side printed films during which a leading film end is pressed progressively against a tool cavity wall by melt as it enters a tool cavity

摘要

The film (7) is placed in an injection molding tool cavity with the leading edge facing the incoming melt (3) pressed against a wall of the cavity and initially the remaining film held away from this wall. An incoming melt flow then presses the remaining film against the wall as its trailing end is released.