| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for processing lumber, in which a desired shaded pattern is formed on a lumber surface. SOLUTION: The method for processing the lumber includes: a sap absorbing process (S2) in which a part of the surface of a piece of lumber taken from material wood is made to absorb sap of the same kind of lumber, and a compression process (S4) in which the piece of lumber with the sap absorbed in the sap absorbing process is deformed by adding compression force to it in a vapor atmosphere of a higher temperature and higher pressure than the atmospheric air. A heat-reshaping process (S7) may be additionally performed in which the piece of lumber compressed in the compression process is re-shaped while being heated in the atmospheric air. COPYRIGHT: (C)2010,JPO&INPIT
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