HEAT-SENSITIVE RECORDING BODY

摘要

A heat-sensitive recording body comprising a supporting body and a heat-sensitive recording layer is disclosed wherein the heat-sensitive recording layer contains a leuco dye, a coloring agent and a copolymerized resin emulsion. The copolymerized resin constituting the copolymerized resin emulsion is characterized in that (1) it contains a (meth)acrylonitrile (i) and a vinyl monomer (ii) which is copolymerizable with the (meth)acrylonitrile, and (2) it has a solubility parameter of not less than 12.0. The vinyl monomer (ii) contains at least one carboxyl group-containing vinyl monomer, and the carboxyl group-containing vinyl monomer is contained in an amount of 1-10 mass% relative to the total mass of the copolymerized resin.