| 摘要 |
PURPOSE:To improve machining adaptability, by mixing 5-95% of wooden fiber which is obtained by a wet type or dry type refinery, in an internal layer chip, manufacturing the three layered or multilayered particle board, thereby smoothing a cut end surface. CONSTITUTION:In the internal layer chip, 5-95%, more desirably 30-80%, of the fiber (wooden fiber), which is obtained by the wet type or dry type refinery, is mixed. In this method, the internal layer becomes minute in comparison with a conventional constitution, compression by a press becomes good, void parts become few, and the cut end surface becomes very smooth. Materials such as used paper pulp, is addn. to the material obtained by said refinery can be used. In this method, even though the amount of use of a bonding agent is increased, the very smooth cut end surface is obtained and coating or lamination can be performed without ground treatment. |
