| 摘要 |
PURPOSE:To provide a thermoplastic resin sheet comprising a transparent resin layer formed with a thermoplastic resin and a colored zone, buried in the transparent resin layer, the shape of which can be varied freely in an apparatus during production. CONSTITUTION:In a manifold 3 of a mould for extrusion molding to which a transparent resin (a) is supplied, a conductor 2 which can supply a colored thermoplastic resin (b) is installed. The conductor 2 is composed of an inner cylinder 21 and an outer cylinder 20. By the % axial movement of the outer cylinder 20, the width of a slit part 8 formed in the inner cylinder 21 is changed. Corresponding to the change in the width of the slit part 8 of the conductor 2, the length of a colored zone in a sheet 9 varies. |
