Patent ID: 7442437

Claim:
A thermal transfer sheet comprising a transfer layer disposed in a peelable manner on at least a part of one surface of a substrate sheet, wherein the transfer layer contains a layer consisting of the adhesive composition which comprises a copolymer (a) of a methylacrylate and/or a butylmethacrylate and a styrene at a position of an outermost layer, and wherein the copolymer has a ratio by weight of acrylic monomer including a methylmethacrylate and a butylmethacrylate to a styrene monomer (acrylic monomer: styrene monomer) is in a range of 25 to 30:1 to 5, wherein the Tg of the copolymer is 40° C. to 100° C., the weight average molecular weight of the copolymer is 20,000 to 150,000, and the layer consisting of the adhesive composition is heat-sensitive.