To provide a recording medium formed of an ink ribbon and a recording material, laminated over each other, with the capability to print data with high printing quality without creases generated in the ink ribbon during printing.

A roll sheet 3A is of such a structure that an ink layer 3C of an ink ribbon 3G and a faint sticky layer 3D of a recording material 3H which shows a faint adhesion strength under normal pressure, are pressure-welded together under a specified high pressure. Thus both layers 3C and 3D can be bonded to each other over their entire surfaces. When data are printed by heat from the base film 3B side, the adhesive force between the ink layer 3C and the base film 3B becomes low, compared with the adhesive force between the ink layer 3C and the sticky layer 3D. Additionally, when an ink ribbon 3G is released from the recording material 3H, the part, where the data are printed by heat, of the ink layer 3C, is transferred to the recording material 3H side, and the part, where the data are not printed by heat, of the ink layer 3C remains as it is on the base film 3G side.