There is provided a transfer sheet with improvement in smudges and blurs of a transfer layer when printed matters are produced even after storing the transfer sheet under high temperatures. The transfer sheet according to the present invention comprises a substrate, and in the order a peel layer and a transfer layer on the substrate, wherein the peel layer contains a binder resin, a silicone oil and/or a wax component and the total contents of the silicone oil and the wax component in the peel layer is 0.1 mass % or more and 15 mass % or less, based on the solid content of mass of the binder resin.

There is provided a transfer sheet with improvement in smudges and blurs of a transfer layer when printed matters are produced even after storing the transfer sheet under high temperatures. The transfer sheet according to the present invention comprises a substrate, and in the order a peel layer and a transfer layer on the substrate, wherein the peel layer contains a binder resin, a silicone oil and/or a wax component and the total contents of the silicone oil and the wax component in the peel layer is 0.1 mass % or more and 15 mass % or less, based on the solid content of mass of the binder resin.

A thermal transfer ribbon includes a carrier layer, a release layer, and a thermally transferable ink layer. The ink layer includes an active ink having a chemistry that is configured, responsive to the occurrence of an environmental, physical or biological condition, to undergo a chemical or physical state change causing a change in the color state of the active ink.

The disclosure discloses an ink ribbon. The ink ribbon includes a ribbon base layer, a first layer, and a second layer. The first layer is configured to separate from the ribbon base layer and is disposed on a first surface of the ribbon base layer. The second layer is configured to adhere to a transfer target and is disposed on the first layer. The melting point of the second layer is 60 [° C.] or more and 90 [° C.] or less.

The disclosure discloses an ink ribbon. The ink ribbon includes a ribbon base layer, a first layer, and a second layer. The first layer is configured to separate from the ribbon base layer and is disposed on a first surface of the ribbon base layer. The second layer is configured to adhere to a transfer target and is disposed on the first layer. The melting point of the second layer is 60 [° C.] or more and 90 [° C.] or less.

A thermal transfer ribbon includes a carrier layer, a release layer, and a thermally transferable ink layer. The ink layer includes an active ink having a chemistry that is configured, responsive to the occurrence of an environmental, physical or biological condition, to undergo a chemical or physical state change causing a change in the color state of the active ink.

A thermal transfer recording medium that is capable of dealing with the requirement for an increase in thermal transfer printing speed, and high density and high quality of a thermally transferred image, capable of preventing the occurrence of abnormal transfer at high temperature and high humidity, and capable of improving transfer sensitivity in printing. A thermal transfer recording medium includes a heat-resistant lubricating layer on one surface of a base material, and an undercoat layer and a dye layer in that order on the other surface of the base material. The undercoat layer includes a copolymer of a polyester having a sulfonic acid group and an acrylic polymer having at least one of a glycidyl group and a carboxyl group, polyvinylpyrrolidone, and an oxazoline group-containing polymer. A binder resin of the dye layer is an acid-modified polyvinyl acetoacetal resin.

A thermal transfer recording medium that is capable of dealing with the requirement for an increase in thermal transfer printing speed, and high density and high quality of a thermally transferred image, capable of preventing the occurrence of abnormal transfer at high temperature and high humidity, and capable of improving transfer sensitivity in printing. A thermal transfer recording medium includes a heat-resistant lubricating layer on one surface of a base material, and an undercoat layer and a dye layer in that order on the other surface of the base material. The undercoat layer includes a copolymer of a polyester having a sulfonic acid group and an acrylic polymer having at least one of a glycidyl group and a carboxyl group, polyvinylpyrrolidone, and an oxazoline group-containing polymer. A binder resin of the dye layer is an acid-modified polyvinyl acetoacetal resin.

A thermal transfer ribbon includes a carrier layer, a release layer, and a thermally transferable ink layer. The ink layer includes an active ink having a chemistry that is configured, responsive to the occurrence of an environmental, physical or biological condition, to undergo a chemical or physical state change causing a change in the color state of the active ink.

A thermal transfer ribbon includes a carrier layer, a release layer, and a thermally transferable ink layer. The ink layer includes an active ink having a chemistry that is configured, responsive to the occurrence of an environmental, physical or biological condition, to undergo a chemical or physical state change causing a change in the color state of the active ink.