Patent ID: 8298987

Claim:
A material, which is a heat-sensitive recording material comprising in this order a support a heat-sensitive recording layer producing a color upon heating, and a protective layer obtained from a composition (A) comprising an emulsion of, as a main component a copolymer resin (a), which copolymer resin (a) (1) comprises 1-10 wt. %, based on the copolymer resin (a), of a vinyl monomer component (i) having a carboxyl group, methyl methacrylate, and a vinyl monomer component (ii) copolymerizable with (i), and (2) has a SP value (solubility parameter) of 9.5 to 11.0 (cal/cm 3 ) 1/2 and a glass transition temperature (Tg) of 20 to 130° C., wherein the emulsion of the copolymer resin (a) having a minimum film-forming temperature (MFT) of more than 5° C. to less than 50° C.