HEAT SENSITIVE RECORDING BODY

摘要

PURPOSE:To provide a heat sensitive recording body which is hard to generate texture fog under high temperature environment and has high sensitivity. CONSTITUTION:In a heat sensitive recording body, at least one kind to be selected out of 3-dimethylamino-7-(o-chlorophenyl amino) fluorane, and 3-diethyl amino-7-(m-trifluoromethl anilino) fluorane is used as basic dyes. At least one kind out of 4-hydroxydiphenyl sulfone compounds having the melting point of at least 120 deg.C is used as a coloration agent and emulsion of stearic amide having a mean particle diameter of not exceeding 0.5mum is used together.