A thermosensitive recording material having high whiteness and resistance to color formation under high temperature, high humidity conditions has a thermosensitive colored image-forming layer formed on a substrate sheet and includes a dye precursor, a binder and a color developing agent including a compound of the formula (I) and optionally a compound of the formula (V).
R1, R3 = unsubstituted or methyl or chlorine-substituted aryl group, R2 = at least C3 divalent organic group, R4 = at least C3 alkyl, aralkyl or aryloxyalkyl group.
一种在高温、高湿条件下具有高白度和抗彩色形成能力的热敏记录材料,其热敏彩色图像形成层形成于基片上,包括
染料前体、粘合剂和
显色剂,其中包括式(I)化合物和可选的式(V)化合物。
R1、R3 = 未取代或甲基或
氯取代的芳基,R2 = 至少 C3 的二价有机基团,R4 = 至少 C3 的烷基、芳基或芳氧基烷基。