| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the cushion sheet for a laminated board, in which a paper once used can be used repeatedly as a cushioning material. SOLUTION: In a cushion sheet to be used at manufacturing a laminated board, a multilayered printed board or the like, water content is absorbed in the cushion sheet used once or more for using the cushion sheet again. The preferable water content percentage of the cushion sheet through the absorption of water content is set to be 0.5-15 wt.% after the drying of the sheet at 120±5 deg.C for 60±5 min.</p> |
