The present invention provides a heat-sensitive recording material high in
sensitivity and whiteness. That is, a heat-sensitive recording material
which comprises a support and a recording layer between which an
intermediate layer is provided and which is of high sensitivity could be
obtained by using a latex having a temperature-sensitive gelling
characteristic as a binder of the intermediate layer and by adjusting pH
of a coating solution of the intermediate layer to 7.0 or more, and
adjusting temperature of the coating solution at the time of preparation
and coating to a temperature lower at least 20.degree. C. than the gelling
temperature of the temperature-sensitive latex. Furthermore, a
heat-sensitive recording material of high whiteness and very high
printability could be obtained by adding a non-crosslinking type acrylic
alkali thickening agent to the coating solution of the intermediate layer.