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US 12,454,145 B2Granted
Heat-sensitive recording body
AssigneeOsaka Sealing Printing Co., Ltd.
InventorsMai Fujii, Yusuke Egashira, Masahiko Yoshida
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Abstract
A thermal recording medium includes: a transparent base material and a thermal recording layer on the base material. The thermal recording layer contains a dispersant having a carboxyl group and a crosslinking agent including an epichlorohydrin-modified polyamide polyamine resin or an organic compound containing an oxazoline group.
Claims2
A thermal recording medium having at least a thermal recording layer, an intermediate layer, and a top coat on a transparent base material in this order, wherein
- the thermal recording layer contains:
- a reaction product of a dispersant having a carboxyl group and a crosslinking agent containing, as a main component, an epichlorohydrin-modified polyamide polyamine resin or an organic compound containing an oxazoline group;
- and
- at least one of a particulate color former or a particulate developer,
- the intermediate layer includes a resin having a core-shell structure, and
- the dispersant is a styrene acrylic copolymer ammonium salt.
3 more elements
Dependencies are inferred from the claim text.