Thermal transfer recording medium
AssigneeKao Corporation
InventorsShiro Kawahito, Koichi Sakai
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Abstract
A thermal transfer recording medium comprising a substrate and a hot-melt ink layer, provided on one surface of the substrate, and a back-coated layer, provided on the other surface of the substrate, said hot-melt ink layer comprising a polyether resin having a basic bisphenol structure and hydroxyl groups at the terminal ends thereof as a binder, and a colorant, said back-coated layer comprising a reaction product of a polyisocyanate and an amino-modified silicone oil, is disclosed. The thermal transfer recording medium of the present invention is capable of forming a transferred image of high quality substantially without being affected by the surface properties of the image receiving paper, and has a high stability.
Claims41
A thermal transfer recording medium, consisting essentially of a substrate, a hot-melt ink layer, and a release layer between said substrate and said hot-melt ink layer, provided on one surface of said substrate, and a back-coated layer, provided on the other surface of said substrate, said hot-melt ink layer comprising a polyether resin having a bisphenol skeleton and hydroxyl groups at the terminal ends thereof as a binder, and a colorant, said release layer comprising a member selected from the group consisting of a silicone resin, a higher fatty acid, a metal salt of a higher fatty acid, a fatty acid derivative, a higher alcohol, and a wax, and said back-coated layer comprising a reaction product of a polyisocyanate and at least one amino-modified silicone oil.
A thermal transfer recording medium, comprising a substrate, a hot-melt ink layer, and a release layer between said substrate and said hot-melt ink layer, provided on one surface of said substrate, and a back-coated layer, provided on the other surface of said substrate, said hot-melt ink layer comprising a polyether resin having a bisphenol skeleton and hydroxyl groups at the terminal ends thereof as a binder, and a colorant, said release layer comprising a member selected from the group consisting of a silicone resin, a higher fatty acid, a metal salt of a higher fatty acid, a fatty acid derivative, a higher alcohol, and a wax, and said back-coated layer comprising a reaction product of a polyisocyanate and at least one amino-modified silicone oil.
Dependencies are inferred from the claim text.