| 摘要 |
PROBLEM TO BE SOLVED: To obtain a clear print on a recording sheet even if a surface of a fluorescent ink layer for forming a thermal transfer ink layer is smoothed and a concentration of a fluorescent pigment in an ink layer is enhanced by specifying a mean particle size of the pigment of the layer. SOLUTION: A thermal transfer ink layer 2 made of a fluorescent pigment, a heat fusible substance and a binder resin is provided on a surface of a base material 1. The layer 2 has a fluorescent ink layer formed of a mixture of the pigment and the binder resin. As the pigment, a mixture of a polymer obtained by emulsion polymerizing it in the presence of a fluorescent dye or a dyed material of the polymer by the fluorescent dye obtained by dyeing the polymer by the dye or an impregnated material is used. A mean particle size of the pigment of mainly 0.1 to 2 μm is used. Thus, transferability, sharpness, small part skip, printing density can be improved. |
