CURRENT-CARRYING HEAT TRANSFER SHEET.

摘要

A current-carrying heat transfer sheet (1) having one, two or more resistance layers (5) on one surface of a substrate sheet (2) and having, on the other surface thereof, a dye layer (4) consisting of a heat migrating dye and a binder. At least one layer of the resistance layers (5) has a positive resistance temperature coefficient. Here, the resistance layer (5) has a ratio R100/R25 of the resistance (R25) at 25 DEG C to the resistance (R100) at 100 DEG C of greater than 1.2, and has a ratio R200/R100 of the resistance (R100) at 100 DEG C to the resistance (R200) at 200 DEG C of greater than 2.5. By providing such resistance temperature characteristics, it is allowed to effectively prevent the melt adhesion by the heat at the time of printing and to improve printing sensitivity and picture quality.