| 摘要 |
A thermal transfer sheet is provided which, during storage up to use thereof, is less likely to cause a dye contained in a thermally transferable ink layer to migrate to a heat-resistant protective layer in contact with the thermally transferable ink layer and, in actually performing thermal printing, does not cause heat fusing between a thermal head and the sheet. The thermal transfer sheet comprises: a substrate sheet; a thermally transferable ink layer provided on one surface of the substrate sheet; and provided on the other surface of the substrate sheet, a heat-resistant protective layer comprising a primer layer and a heat-resistant slip layer provided in that order, the primer layer being formed of a composition comprising a synthetic resin which has a storage modulus G' of not less than 106 Pa at 40° C. and a loss modulus G'' of not less than 104 Pa at 120° C.
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