| 摘要 |
PURPOSE: A puzzle mat is provided to prevent lengthening of groove portion at the frame portion even by repetitive assembly and disassembly of the puzzle mat for a long time. CONSTITUTION: A puzzle mat has a mat body and frame portion. The puzzle mat comprises: a close cell polyvinyl chloride foaming layer(1) mounted at the upper portion; a first adhesive layer(2) mounted at the lower portion of the close cell polyvinyl chloride foaming layer; an open cell polyvinyl chloride foaming layer(3) mounted at the lower portion of the first adhesive layer; a second adhesive layer(4) mounted at the lower portion of the open cell polyvinyl chloride foaming layer; and an EVA foaming layer(5) mounted at the lower portion of the second adhesive layer.
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