| 摘要 |
PROBLEM TO BE SOLVED: To reduce the generation of fusion bonding, eliminate the generation of uneveness of image and minimize head tailings by setting the softening temperature of a heat-resistant layer of a sublimation type heat transfer body measured based on JIS-K7196 at a specified numerical value or more. SOLUTION: In forming an ink layer 2, a sublimation dye and a binder are dispersed or dissolved in a solvent, and a base sheet 1 is coated with a solvent material thus prepared by using a coating device such as a graft coater and dried. The softening temperature of a heat-resistant layer 3 measured by JIS-K7196 is 200 deg.C or over. In the case it is lower than the above-referred temperature, tailings from the heat-resistant layer are made to adhere to a thermal head, and abnormal stripe-shaped or mark-shaped matters appear on an image. The above-referred characteristics can only be provided by setting optimum recipe conditions, manufacturing conditions and storing conditions for the temperature. Fusion bonding is not generated on the heat-resistant layer composed of a cured material of a silicone graft polymer and an isocyanate compound even when fine particles such as an organic or an inorganic filler are not added, and also the generation of white voids can be prevented. |
