| 摘要 |
PROBLEM TO BE SOLVED: To provide a paper tatami mat easily harmonised with a floor surface for laying a TATAMI mat, layable in a smooth state even if there is a recess-projection on the floor surface, restraining the warping of the whole tatami mat by moisture absporption, and easy in laying work. SOLUTION: This tatami mat 1 has a plate-like paper core 2 of turning a seam 20 in the obverse-reverse direction by superposing a plurality of corrugated board materials 23 formed by joining a plate 22 having unit area weight smaller than a corrugated plate 21 on one surface or both surfaces of the corrugated plate 21, a plate material 3 superposed in a noncontact state on at least a surface of the obverse/reverse of the core 2 and a tatami facing 4 arranged on the upper surface of the obverse side plate material 3. The plate material 3 is formed of a paper material of 800 g/m<SP>2</SP>or heavier. COPYRIGHT: (C)2004,JPO
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