THERMAL RECORDING SHEET

摘要

Disclosed is a thermal recording sheet including a substrate, an intermediate layer containing a pigment having a low oil absorption and a thermal color developing layer containing a leuco dye type chromogenic component containing a leuco dye and an organic color developer such as a 4- hydroxy-4'-alkoxydiphenylsulfone and a metal chelate type chromogenic component containing a metal double salt of a C16-C35 fatty acid as an electron acceptor and a polyphenol compound having a C18-C35 long-chain alkyl group as an electron donor. The thermal recording sheet has improved dynamic sensitivity, image stability and printability.