BINDER FOR THERMAL TRANSFER LAYER AND THERMAL TRANSFER INK RIBBON

摘要

PURPOSE: To provide a binder resin for a thermal transfer layer excellent in the releasability thermal transfer with recording paper having a receiving layer containing no release agent and the preservability of an ink ribbon and a sublimable thermal transfer ink ribbon. CONSTITUTION: A binder for a thermal transfer layer contains a polyvinyl acetal resin and a silicone resin having a three-dimensional reticulated structure containing a siloxane bond as a main skeleton and solid at the normal temp. and soluble in an org. solvent. A thermal transfer ink ribbon is obtained by providing a thermal transfer layer containing a sublimable dye and the binder for the thermal transfer layer on a base material.