Thermal transfer recording medium
AssigneeToppan Printing Co., Ltd.
InventorsTakehito Yamato, Takeshi Arita
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Abstract
A thermal transfer recording medium which includes a dye layer having storage stability and sufficient color development properties, and enables improvement in image quality of the printed matter. The thermal transfer recording medium according to an embodiment of the present invention includes a substrate, a heat-resistant lubricating layer provided on a first surface of the substrate, and a dye layer provided on a second surface of the substrate, wherein the dye layer includes a dye, a binder A, and a binder B which contains at least one of polyvinyl butyral and polyvinyl acetal, a solubility parameter of the binder A is within a range of 9.5 (cal/cm3)1/2 or more and 12.0 (cal/cm3)1/2 or less, and a melting viscosity of the binder A at 200° C. is 400 Pa sec or less.
Claims4
A thermal transfer recording medium comprising:
- a substrate;
- a heat-resistant lubricating layer provided on a first surface of the substrate;
- and
- a dye layer provided on a second surface of the substrate, wherein
- the dye layer includes a dye, a first binder, and a second binder which contains at least one of polyvinyl butyral and polyvinyl acetal,
- a solubility parameter of the first binder is within a range of 9.5 (cal/cm3)1/2 or more and 12.0 (cal/cm3)1/2 or less, and
- a melting viscosity of the first binder at 200° C. is 400 Pa sec or less.
Dependencies are inferred from the claim text.