Dai Nippon Printing Co., Ltd.

Yasuyuki Shouji

Ryoji Hattori

Kazuya Yoshida

Yoshihiro Imakura

Tomohiko Imoda

Daisuke Fukui

Koichiro Kuroda

To provide a coating liquid for release layer with which a release layer having a small variation in the performance difference can be stably formed, to provide a method for producing a thermal transfer sheet using this coating liquid for release layer, and to provide a thermal transfer sheet having stable releasability. A thermal transfer sheet having a substrate, a release layer provided on the substrate, and a transfer layer provided on the release layer, wherein the transfer layer is provided peelably from the release layer, and the release layer contains a silsesquioxane.

Thermal transfer sheet, coating liquid for release layer, and method for producing thermal transfer sheet

To provide a coating liquid for release layer with which a release layer having a small variation in the performance difference can be stably formed, to provide a method for producing a thermal transfer sheet using this coating liquid for release layer, and to provide a thermal transfer sheet having stable releasability. A thermal transfer sheet having a substrate, a release layerprovided on the substrate, and a transfer layerprovided on the release layer, wherein the transfer layeris provided peelably from the release layer, and the release layercontains a silsesquioxane.

There is provided a thermal transfer sheet having satisfactory peelability when a transfer layer is peeled off without being affected by a peeling environment when the transfer layer is peeled off. A thermal transfer sheetincludes a substrateand a transfer layerprovided on one surface of the substrate, in which the peeling force in a stable period is in the range of 4.6 g/cm or more and 23 g/cm or less when the transfer layeris peeled off at a peeling temperature in the range of 30&#xb0; C. or more and 70&#xb0; C. or less and at a peeling angle of 90&#xb0; while the surface of the transfer layeron the side opposite to the substrateis made to serve as a peeling interface.

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Tokyo, Japan

Yasuyuki Shouji