Abstract: A heat-sensitive recording material produced by a process wherein an excess amount of a color developing layer coating solution or a protective layer coating solution is removed by a roll blade coater is excellent in recording machine applicability and dynamic sensitivity without bringing about streaks, pressure fogging and heat fogging on the uppermost treated surface.

Abstract: This invention provides an overcoat composition for a heat-sensitive record material comprising as an effective component thereof an emulsion of graft copolymer prepared by graft-copolymerizing methyl (meth)acrylate (A), a lower hydroxalkyl (meth)acrylate (B) and (meth)acrylic acid (C) with a polyvinyl alcohol in the presence of water and a neutralization salt of diisobutylene-maleic anhydride copolymer; a heat-sensitive record material having a heat-sensitive layer coated over its surface with an overcoat composition defined above; and a process for preparing a heat-sensitive record material comprising coating the surface of the heat-sensitive layer of a heat-sensitive record material with an overcoat composition defined above.