Thermal transfer sheets
AssigneeDai Nippon Printing Co., Ltd.
InventorYuzu Imakura
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Abstract
The thermal transfer sheet according to the present invention that has, in the order mentioned, a substrate, a colored layer, and an adhesion layer; and wherein the colored layer contains a colorant, polyester-based resin A, and polyester-based resin B; the number average molecular weight of the polyester-based resin A is not less than 15,000; the number average molecular weight of the polyester-based resin B is not more than 5,000; a content ratio by mass of the polyester-based resin A to the polyester-based resin B (polyester-based resin A/polyester-based resin B) in the colored layer is not less than 2/3 and not more than 9/1; and the adhesion layer includes a polyester-based resin.
Claims16
A thermal transfer sheet comprising, in the order mentioned, a substrate, a colored layer, and an adhesion layer, wherein
- said colored layer comprises a colorant, polyester-based resin A, and polyester-based resin B;
- the number average molecular weight of said polyester-based resin A is not less than 15,000;
- the number average molecular weight of said polyester-based resin B is not more than 5,000;
- a content ratio by mass of said polyester-based resin A to said polyester-based resin B (polyester-based resin A/polyester-based resin B) in said colored layer is not less than 2/3 and not more than 9/1;
- and
- said adhesion layer comprises a polyester-based resin.
Dependencies are inferred from the claim text.