| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thermal transfer sheet having improved preservation property. <P>SOLUTION: A dye layer comprising a thermally migrating dye and a binder resin is formed on one side surface 2a of a base 2, a heat-resistant smooth layer is formed on the other side surface, the thermally migrating dye includes an indoaniline type dye, the binder resin includes a polyvinyl acetal resin (A) and a polyvinyl acetal resin (B) both of which are represented by general formula (1), and a mass ratio of the polyvinyl acetal resin (A) to the polyvinyl acetal resin (B) is set as follow: polyvinyl acetal resin (A)/polyvinyl acetal resin (B)=9/1 to 5/5. <P>COPYRIGHT: (C)2010,JPO&INPIT |
