Patent ID: 7307042
Filing Date: 2007-12-11
Classification: B41M

Abstract:
1. A thermal recording material comprising a heat-sensitive recording layer formed on a support and color-developed by heat, and a protective layer formed on the heat-sensitive recording layer and comprising a resin emulsion (a), wherein, (1) the resin emulsion (a) comprises a copolymer resin emulsion (b) containing (meth)acrylonitrile and a vinyl monomer copolymerizable therewith, and having an SP value (solubility parameter) of 12.0 or more, a glass transition temperature (Tg) of 10 to 70° C., and a minimum film-forming temperature (MFT) of 5° C. or less, and a polyolefin copolymer resin emulsion (c) having a particle size of 2000 nm or less, (2) 1 to 10 parts by weight of vinyl monomers having a carboxyl group is comprised in 100 parts by weight of the solid content of the copolymer resin emulsion (b), and (3) the protective layer does not contain a crosslinking agent.