| 摘要 |
A plastic laminated sheet and a manufacturing method for the same are provided to produce the triple laminated sheet using PET(G)(Polyethylene Terephthalate/Polyethyleneglycol Methacrylate) or PC(Polycarbonate) and SAN(PS)(Styrene Acrylonitrile Copolymers/Polystyrene) and K-resin. A plastic laminated sheet is composed of upper and lower layers made of PET or PC and an intermediate layer formed between the upper and lower layers and made of synthetic materials of SAN resin and transparent K-resin. A plastic laminated sheet manufacturing method comprises the steps of: drying the inserted PET resin at 80~100°C for 2~4 hours by using a dehumidifying dryer or a dry hopper; drying synthetic resin of SAN and K-resin at 90~100°C for 1~3 hours by using the dehumidifying dryer or the dry hopper; melting the dried PET resin at 220~280°C by using a melting extrusion; melting the dried synthetic resin of SAN and K-resin at 200~240°C by using the melting extrusion; drawing the melted PET resin for sheets for the upper and lower layers and the melted synthetic resin of SAN and K-resin for sheets for the intermediate layer while regulating the thickness, by using a T-die with the temperature of 230~260°C; and forming the triple laminated sheet by hot-pressing the sheets passing through the T-die, by a polishing roller.
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