Heat-sensitive recording material

摘要

A heat-sensitive recording material is disclosed, comprising a support having provided thereon a heat-sensitive recording layer containing microcapsules containing a color former and an organic solvent as core materials and a color developer exterior thereto, the wall of said microcapsules being impermeable to both of the color former and the color developer at room temperature but becoming permeable to at least one of the color former and color developer upon the application of heat, wherein the heat-sensitive recording layer further contains a pigment having an average particle size greater than that of the microcapsules. The material exhibits improved handling and running properties.