| 摘要 |
<p>A combination writing board/reflecting screen sheet excellent in writing and erasing abilities when used as a writing board, and excellent in glare-proofness and free from hot spot when used as a reflecting screen, the sheet comprising a resin layer provided on at least one surface of a base material and permitting writing and erasing by a writing board pen. The resin layer has an unevenness formed by embossing and having an arithmetic average roughness (JIS-B-0601) of 1.0 to 4.0 νm and an average ridge interval between adjacent protrusions (JIS-B-0601) of 30 to 300 νm, and preferably contains an ionizing radiation curable resin such as ultraviolet-curable resin. The sheet, having its unevenness formed by embossing, will not allow ink to permeate into the layer and serves as a writing board excellent in erasing performance.</p> |
