| 摘要 |
The present invention is intended to artificially break pit membranes in cel l membranes of cells constituting wood and then to readily attain dryness of the wood. In view of the fact that one pit or the other pit of pits in the form of a pair is blocked with the torus 1 in felle d wood to cause poor removal of water in cells, it is intended to prevent the blockage of the pit membran e, i.e., to break the pit membrane per se, thereby facilitating easy escapement of water in cells afte r the breaking. In the present invention, wood fuel is burned, and subject wood is allowed t o stand in a treatment chamber filled with smoky wood gas generated by the combustion for a predetermined period of time, to expose the subject wood to far-infrared radiation and components contained in the wood gas. Further, ceramic material for multiplying far-infrared radiation o r high-density lava is heaped in a combustion chamber with appropriate gaps left therebetween, thereby effecting heat reservation and further multiplication of far-infrared radiation. Accordingly, the subje ct wood is irradiated with a large amount of far-infrared radiation, thereby preventing the torus of th e wood from blocking up one pit or the other pit of pits in the form of a pair to form gaps in the pits.
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