| 摘要 |
PROBLEM TO BE SOLVED: To improve stability of a color image by providing a recording sheet having a recording layer containing zinc salt of salicylic acid derivative and an adhesive sheet having an adhesive layer containing adhesive, leuco dyestuff, and ester compound. SOLUTION: For a carrier used for a recording sheet and an adhesive sheet, paper, film, or the like of thickness of about 25-250μm is adopted. For the adhesive layer of the adhesive sheet, various sorts of known rubber series adhesive or acryl resin series adhesive can be selectively used. Within them, acryl series resin adhesive of excellent stickness, transparency, and the like is desirable. For additive into the adhesive layer, ester compound of excellent compatibility to the adhesive and stability, leuco dyestuff and/or salicylic acid derivative of excellent solubility, easy control for temperature and time, are desiable. The recording layer is formed so that water is used as medium, by the use of a dispersion machine such as a sand mill, zinc salt of salicyilc acid derivative or zinc salt of mean particle diameter under 3μm, and adhesive are mixingly stirred, to make regulated coating liquid for a recording layer, and the coating liquid is applied and dried.
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