| 摘要 |
PURPOSE: A double structure urethane sheet is provided to have both the merit of the cold cure foam sheet and the merit of the memory foam sheet. CONSTITUTION: The double structure urethane sheet of the urethane foamed product comprises a high elastic and hard cold cure foam sheet(10) as an outer first structure and a memory foam sheet(20) as an inner second structure. The cold cure foam sheet has an inclined structure in which the upper side is wide and the lower side is narrow, and has a hole with the upper and lower parts open at the center. The memory foam sheet is inserted into the hole of the cold cure foam sheet.
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