| 摘要 |
The surface smoothness of decorative laminate pressed without pans is improved by using as a pressure equalizing medium during consolidation of the laminate lay-up under heat and pressure, a thermoplastic resin layer between successive laminate lay-ups which melts or softens and flows at the consolidation temperature, the thermoplastic resin layer being protected on either side by a release medium. The use of the thermoplastic resin layer eliminates the use of the usual highly polished metal caul plates for all but the smoothest laminates and permits the use of press build-ups of many more laminate lay-ups than when using metal caul plates.
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