| 摘要 |
PROBLEM TO BE SOLVED: To prevent the cutting of a decorative sheet comprising a paper base material during lamination caused by the deterioration of the paper base material by ionizing radiation even when the surface resin layer of the sheet is crosslinked by the ionizing radiation to improve surface properties such as abrasion resistance. SOLUTION: In the decorative sheet S, a high elasticity resin layer 2 at least 40 MPa in tensile strength is formed on the paper base material 1, and the surface resin layer 4 comprising a crosslinked radiation curable resin is formed as a surface layer. A pattern layer 3, etc., can be incorporated. Coniferous pulp is preferable for use in the paper base material in view of strength. Pulp having carboxyl groups and carbonyl groups at the cut ends of cellulose molecules is used preferably. A decorative material such as the decorative sheet is obtained by laminating the sheet on a substrate base material with the use of an adhesive.
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