Provided is a thermal transfer sheet which has satisfactory printability and provides a printed matter having excellent boiling resistance. Disclosed is a thermal transfer sheet which is provided with a substrate, at least a transferable protective layer and a transferable color layer in this order on one side of the substrate, and is provided with a back face layer on the other side of the substrate, characterized in that the transferable protective layer contains a cyclic olefin-based polymer having a glass transition temperature of 100 C. or more as a main component and further contains an incompatible resin with the cyclic olefin-based polymer, and the transferable color layer contains a colorant and a phenolic resin having a softening point of 100 C. or more.

Provided is a thermal transfer sheet that can form a good image on both a transfer object made of a polyethylene terephthalate and a transfer object made of a polypropylene, as well as can form an image with high alcohol resistance. The thermal transfer sheet of the present invention includes a substrate, and a transfer layer including a colored layer and an adhesive layer, in which the adhesive layer has a phase-separated structure formed by a polyester and a polyolefin that are incompatible with each other, and in which the percentage of the region formed by one of the polyester and the polyolefin to the total area (100%) of the adhesive layer is 55% or more and 85% or less.

A thermosensitive recording body has at least a thermosensitive recording layer and a topcoat layer formed on a substrate. The substrate consists of a transparent film. At least the thermosensitive recording layer and the topcoat layer includes a diffuse reflection suppressor component that suppresses diffuse reflection of light from particles constituting the thermosensitive recording layer and the topcoat layer.

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 polyester film has a wax on a surface of one side of the film and is a polyester film in which this wax is dispersed in the form of islands on the surface of the film, and a filling factor of the wax in the film surface is 20 to 45%, and, as for a number of islands of the wax dispersed in the form of islands and each of which has an area of 200 m.sup.2 or larger, there is one or less/10000 m.sup.2.

A main object of the present invention is to provide a thermosensitive recording material having excellent recording color developability and recording image quality, having no inhibition of a color-developing reaction due to the adhesive component after being processed into a thermosensitive recording label (glue desensitization), and being able to withstand long-term storage while retaining excellent recording performance. The present invention is a thermosensitive recording material (1) having at least an anchor layer (1) containing a sizing agent on a support, an undercoat layer containing at least one member selected from the group consisting of plastic hollow particles and sizing agents on the anchor layer (1), and a thermosensitive recording layer containing a leuco dye and a coloring agent on the undercoat layer; and is a thermosensitive recording material (2a) having an anchor layer (2) containing specific amounts of a pigment and a specific sizing agent on a support, and a thermosensitive recording layer containing a leuco dye and a coloring agent on the anchor layer (2); a thermosensitive recording material (2b) having an anchor layer (2) containing a pigment and a specific sizing agent on a support, and a thermosensitive recording layer containing a leuco dye and a specific coloring agent on the anchor layer (2); or a thermosensitive recording material (2c) having an anchor layer (2) containing a sizing agent and a water resistance-imparting agent on a support, and a thermosensitive recording layer containing a leuco dye and a coloring agent on the anchor layer.

Hollow resin particles for thermosensitive recording media containing a thermoplastic resin shell and a hollow part surrounded by the shell. The hollow resin particles contain a thermally-vaporizable hydrocarbon in an encapsulation ratio of at least 0.2 wt %. The hollow resin particles preferably have a mean volume particle size ranging from 0.1 to 10 m.

A colour laser markable laminate includes a colour laser markable layer including a leuco dye and an infrared absorbing compound, an optional adhesive layer, a polymeric support, an optional outerlayer, wherein the colour laser markable layer further includes an acid scavenger. The support, the optional adhesive layer, or the optional outer layer includes a UV absorbing compound.

Provided is a thermal transfer sheet which has satisfactory printability and provides a printed matter having excellent boiling resistance.

Disclosed is a thermal transfer sheet which is provided with a substrate, at least a transferable protective layer and a transferable color layer in this order on one side of the substrate, and is provided with a back face layer on the other side of the substrate, characterized in that the transferable protective layer contains a cyclic olefin-based polymer having a glass transition temperature of 100 C. or more as a main component and further contains an incompatible resin with the cyclic olefin-based polymer, and the transferable color layer contains a colorant and a phenolic resin having a softening point of 100 C. or more.

Provided is a thermal transfer sheet which has satisfactory printability and provides a printed matter having excellent boiling resistance.

Disclosed is a thermal transfer sheet which is provided with a substrate, at least a transferable protective layer and a transferable color layer in this order on one side of the substrate, and is provided with a back face layer on the other side of the substrate, characterized in that the transferable protective layer contains a cyclic olefin-based polymer having a glass transition temperature of 100 C. or more as a main component and further contains an incompatible resin with the cyclic olefin-based polymer, and the transferable color layer contains a colorant and a phenolic resin having a softening point of 100 C. or more.