Recording material containing leuco dye

摘要

A recording material comprises a layer containing a leuco dye provided on a support, characterized in that the leuco dye has the following formula (I): (I) in which each of R1 and R2 independently is an alkyl group, an aralkyl group or an aryl group; R3 is an alkyl group or an aralkyl group; X is and each of R1, R2, R3, X and the benzene rings A, B, C and D may have one or more substituent groups.