| 摘要 |
A thermosensitive recording material comprising a support member and a thermosensitive layer formed on the support member, which thermosensitive layer contains a colorless or light-colored leuco dye and acidic material, capable of forming a color upon application of heat to the thermosensitive layer, and at least one amide compound selected from the group consisting of amide compounds represented by the formulas <IMAGE> +TR <IMAGE> wherein R1 represents an alkyl group with 1 to 30 carbon atoms, a phenyl group or a substituted phenyl group; R2 represents hydrogen or an alkyl group with 1 to 4 carbon atoms; R3 represents an alkyl group with 1 to 30 carbon atoms; R4 and R5 individually represent hydrogen, a halogen atom, an alkyl group with 1 to 4 carbon atoms or an alkoxy group with 1 to 4 carbon atoms; and n is an integer, 0 or 1, whereby image formation is improved with respect to the image density, the quantity of energy required for image formation, and thermal head operation on the thermosensitive recording material, and a compound represented by the formula <IMAGE> wherein R6 and R7 individually represent an alkyl group with 10 to 30 carbon atoms, whereby prevention of discoloration of the recording material by pressure or friction is achieved.
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