THERMAL TRANSFER RECORDING MEDIUM, MANUFACTURING METHOD THEREFOR AND THERMAL TRANSFER RECORDING METHOD

摘要

To provide a heat-sensitive transfer recording medium that has high transfer sensitivity during high speed printing and is capable of reducing image quality failure that occurs in high density areas, that is, the phenomenon of the surface of a printed object becoming matted locally, and of preventing a print failure due to wrinkles that occur during printing. The heat-sensitive transfer recording medium of the invention is such that an equilibrium moisture absorption rate at 23°C/50% of an undercoating layer containing a water-soluble polymer as a main component is 15% or less, preferably 13% or less, and more preferably, a mean value (±) of the surface roughness (root mean square deviation Sq) of the heat-resistant lubricating layer is 0.05 - 0.40 µm, a mean value (²) of the surface roughness (root mean square deviation Sq) of the heat-resistant lubricating layer after being allowed to stand for 10 minutes at 150°C is 0.00 - 0.70 µm, and a difference between the mean value (±) and the mean value (²) is 0.00 - 0.30 µm.