| 摘要 |
PROBLEM TO BE SOLVED: To provide a desk mat having high convenience, high learning performance, high taste, and high applicability, and writing on a sheet surface, preventing contamination caused by writing ink or erased wastes, or write erasure caused by contact, and adding a trace, a maze play or the like according to a type of a printed article held on a transparent sheet bottom surface.SOLUTION: A water-discolored desk mat 1 containing a low-refractive index pigment dispersed in a binder resin and fixed, is configured by forming a porous layer 3 made nontransparent in a liquid nonabsorbing state and made transparent in a liquid absorbing state on the surface of a transparent sheet 2. A water-discolored desk mat set includes the water-discolored desk mat and a water sticking tool. |
