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US 7,071,142 B2Granted
Thermal recording material
AssigneeRicoh Company, Ltd.
InventorsMitsuru Naruse, Mitsunobu Morita, Kunio Hayakawa
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Abstract
A thermal recording material including a substrate; a thermal coloring layer which is located overlying the substrate and which includes a leuco dye and a developer for coloring the leuco dye upon application of heat; and a protective layer which is located overlying the thermal coloring layer and which includes a binder resin, a crosslinking agent and a filler, wherein the binder resin in the protective layer includes a polyvinyl alcohol having a silanol group, and the crosslinking agent includes a zirconium compound of lactic acid.
Claims10
A thermal recording material comprising
- a substrate;
- a thermal coloring layer which is located overlying the substrate and which comprises a leuco dye and a developer for coloring the leuco dye upon application of heat;
- and
- a protective layer which is located overlying the thermal coloring layer and which comprises a binder resin, a crosslinking agent and a filler,
- wherein the binder resin in the protective layer comprises a polyvinyl alcohol having a silanol group, and the crosslinking agent comprises a zirconium compound of lactic acid.
2 more elements
Dependencies are inferred from the claim text.