Patent ID: 6207613
Filing Date: 2001-03-27
Classification: B41M

Abstract:
A reversible thermosensitive recording material comprising a recording layer which is formed overlying at least one side of a substrate and which comprises an electron donating coloring agent and an electron accepting color developer, wherein the recording layer achieves a colored state when heated at a temperature not lower than a coloring temperature and then cooled at a cooling speed (a), and the recording layer in the colored state achieves a non-colored state when heated at a temperature lower than the coloring temperature and not lower than an erasing temperature, or when heated at a temperature not lower than the coloring temperature and then cooled relatively slowly compared to the cooling speed (a), and wherein the electron accepting color developer comprises a phenolic compound having the following formula (1): ##STR47##wherein n is an integer of from 1 to 3; m is an integer of from 1 to 20; r is 0 or an integer of from 1 to 3; X and Y independently represent a divalent group including a hetero atom; R.sub.1 represents a hydrocarbon group having from 1 to 20 carbon atoms; and R.sub.2 represents a hydrocarbon group having from 2 to 20 carbon atoms.