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

摘要

The problem addressed by the invention is to provide a thermal transfer recording medium that has high transfer sensitivity during high speed printing and is capable of reducing the poor image quality that occurs in high density areas, that is, the phenomenon of the surface of the printed object becoming matted locally, and of preventing poor printing due to wrinkles that occur during printing. For this thermal transfer recording medium: the equilibrium moisture content at 23°C/50% of an undercoating layer containing a water-soluble polymer as the main component is 15% or less, preferably 13% or less; and more preferably, the mean value (alpha) for the surface roughness (root mean square deviation Sq) of the heat-resistant lubricating layer is 0.05 - 0.40 µm, the mean value (beta) for the surface roughness (root mean square deviation Sq) of said heat-resistant lubricating layer after being left standing for ten minutes at 150°C is 0.00 - 0.70 µm, and the difference between the mean value (alpha) and the mean value (beta) is 0.00 - 0.30 µm.