| 摘要 |
PROBLEM TO BE SOLVED: To prevent thermosensitivity from being deteriorated with time by providing a protection layer containing UV ray curable resin, and allowing a quantity of an inorganic solvent contained in a thermosensible recording medium to be in a ratio of a specific range relative to a total weight of the thermosensible recording layer and protection layer. SOLUTION: A protection layer containing UV ray curable resin is furnished on a thermosensible recording layer, and a quantity an organic solvent contained in a thermosensible recording medium is allowed to be in a range of 0.5-2% in a total weight of the thermosensible layer and protection layer. In addition, a rate of the UV curable resin contained in the protection layer is made 20% or more relative to all weight of the protection layer. In this constitution, a problem can be solved in which the heat sensitivity lowers secularly because the solvent in the recording layer is secularly discharged gradually. Accordingly, a thermosensible recording medium can be obtained with high heat sensitivity and a small variation of heat sensitivity. Also, a plasticizer is further added in the thermosensible recording layer, thus obtaining a thermosensible recording medium with higher sensitivity and a small variation of the sensitivity. |
