| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a foamed resin laminated board capable of applying a heating method using an far-infrared ray heating as a heating method for a not-yet-foamed layer between a hard layer and another hard layer, on manufacturing a foamed resin laminated board with a foaming resin layer between the hard layer and the hard layer and capable of foaming the foamable resin described above by the far-infrared ray heating. SOLUTION: (1) The manufacturing method comprises preparing a laminated board 20 with a foamable resin layer in a state not yet foamed between the hard layers, bringing a far-infrared absorbing and heat conducting layer 21 and 22 with far-infrared ray absorbing and conductive properties by contacting 21 and 22 into contact with the surface of the hard layer on the one side or both sides of the laminated board 20 and then forming the foaming resin layer by carrying out the far-infrared ray heating to make the foamable resin layer described before. (2) In the manufacturing method of the foamable resin laminated board described before, a weight of the far-infrared absorbing and heat conducting layer 21 is 0.1-10 mg/mm<SP>2</SP>. COPYRIGHT: (C)2009,JPO&INPIT |
