| 摘要 |
PURPOSE: A method for manufacturing plywood directly coated with phenol resin or melamine resin is provided to improve productivity by combining several unit operations into nonstop operation. CONSTITUTION: The method comprises the steps of (i) heat a plywood with a thickness of 3-40mm up to 50-150deg.C; (ii) first coating of melamine resin or phenol resin(100g/m¬2) on the plywood; (iii) first dry it in a dryer at 100-150deg.C as passing at a speed of 3m/sec-9m/sec; (iv) second coating of melamine resin or phenol resin(100g/m¬2) on the plywood; (v) second dry it in a dryer at 100-150deg.C as passing at a speed of 3m/sec-9m/sec; (vi) compressing a patterned paper on the both sides of the plywood at 15-25Kg/cm¬2 for 20-40sec while heating the plywood in the temperature range 150-200deg.C.
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