| 摘要 |
<p>Provided is a method for manufacturing a thermo-plastic resin sheet bearing an embossed pattern, which employs a manufacturing apparatus includes a first roll having an elastic material coated surface, a mirror-faced metal, endless belt, which is wound around the first roll and a second roll, and a third roll so provided that the metal, endless belt is wrapped partially around the third roll, which contacts the first roll via the metal, endless belt and which has an embossed pattern formed on one surface. According to this method, the thermo-plastic resin sheet, partially melted, is fed between the metal, endless belt, which contacts the first roll, and the third roll. The elastic member is elastically deformed by application of a pressing force between the first and the third roll, while face pressure welding the thermo-plastic sheet by using the first and the third rolls to transfer the embossed pattern and to cool the thermoplastic resin sheet. A surface temperature for the third roll of from 0 DEG C to (resin's Tg +20) DEG C is maintained when the thermo-plastic resin sheet is formed of an amorphous resin, and a surface temperature for the third roll of 0 DEG C to (resin's m.p. +20) DEG C is maintained when the thermo-plastic resin sheet is formed of a crystal resin. Subsequently, face pressure welding of the thermo-plastic resin sheet is performed by using the metal, endless belt relative to the third roll. <IMAGE></p> |
