| 摘要 |
PROBLEM TO BE SOLVED: To provide a doormat where risks of falling and getting injured are reduced in the door mat by suppressing slipping even when its surface is wet with water. SOLUTION: Onto the surface of the doormat M made of non-foaming resin which has a plurality of vertical holes 5 opening at its surface, the surface of a surface pressing roll 61 to which abrasive grains of prescribed grain sizes are fixed is pressed for molding with pressure to mold a slip prevention surface 7. COPYRIGHT: (C)2007,JPO&INPIT
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