Ricoh Company, Ltd.

Kazuhiro Hasebe

Masaaki Kobayashi

Minoru Hakiri

Motoo Tasaka

Hiroki Sugiyama

Mitsuru Maeda

A thermosensitive image transfer recording medium having a support, a release layer formed thereon containing as the main components an unvulcanized rubber and a thermofusible wax component, and a thermofusible ink layer containing a coloring agent and a thermofusible resin component, with addition of a thermofusible wax component thereto when necessary, formed on the release layer. Further, the release layer may consist of two sub-release layers which are successively overlaid on the support, with one of the sub-release layers containing the thermofusible wax component, and the other sub-release layer containing the unvulcanized rubber and the thermofusible wax component. The thermosensitive image transfer recording medium may further include a mat layer containing a pigment and a binder agent between the support and the release layer, and if necessary an overcoat layer on the thermofusible ink layer, which contains a thermofusible wax component or a mixture of a thermofusible wax component and a thermofusible resin component.

Thermosensitive image transfer recording medium

A multi-strike ink ribbon comprising a film substrate and an ink layer formed on the substrate, when necessary, with an adhesive layer interposed therebetween, which ink layer comprises as the main components a resinous material and an ink component comprising a coloring agent and an oil component which is not soluble in the resinous material, the oil component containing as an indispensable component a branched saturated primary alcohol, a fatty acid ester thereof or a hydroxy-fatty acid ester thereof.

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Numazu, Japan

Kazuhiro Hasebe