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US 6,568,931 B2Granted
Emboss pattern processing apparatus
AssigneeIdemitsu Petrochemical Co., Ltd.
InventorsAtsushi Fujii, Ryuji Moriwaki
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Abstract
An emboss pattern processing apparatus for transferring an emboss pattern onto a thermoplastic resin sheet includes an emboss patterning roller and a lustering device having a mirror face member. The emboss patterning roller includes a roller body having a face embossed with the pattern and sealing rings attached on each side face of the roller body. The roller body and the sealing rings have a passage for flowing a cooling medium from one sealing ring through the roller body to the other sealing ring.
Claims19
An emboss pattern processing apparatus, comprising:
- an emboss patterning roller for transferring an emboss pattern onto a first face of a thermoplastic resin sheet;
- a lustering device having a mirror face member that is positioned to press against a second face of the thermoplastic resin sheet that is opposite the first face while the thermoplastic resin sheet is against said emboss patterning roller for lustering the second face of the thermoplastic resin sheet;
- a cooling device located inside said emboss patterning roller for cooling the thermoplastic resin sheet while the thermoplastic resin sheet remains against said emboss patterning roller to a lower temperature than a temperature at which the emboss pattern is transferred to the thermoplastic resin sheet wherein said cooling device is positioned to draw thermal energy away from the first face of the thermoplastic resin sheet towards the emboss patterning roller after the emboss pattern is transferred to the thermoplastic resin sheet;
- and
- a peeling device for removing the cooled thermoplastic resin sheet from said emboss patterning roller.
2 more elements
An embossing pattern apparatus comprising:
- an emboss pattern roller for transferring an emboss pattern onto a first face of a thermoplastic sheet, said emboss pattern roller including a roller body having an annular face with an embossing pattern and an inner structure enabling sequential cooling of portions of the annular face of said emboss pattern roller;
- a pressing roller for pressing against said emboss pattern roller to form the embossed pattern on the first face of the thermoplastic sheet;
- and
- a peeling roller for peeling the thermoplastic sheet from said emboss pattern roller,
- wherein said inner structure of said roller body provides cooling of portions of the annular face of said emboss pattern roller only in the vicinity of said peeling roller.
2 more elements
Dependencies are inferred from the claim text.