申请人:——
公开号:US20040071187A1
公开(公告)日:2004-04-15
A thermosensitive recording material has a support and a thermosensitive coloring layer formed thereon containing a leuco dye and a color developer capable of inducing color formation in the leuco dye upon application of heat thereto, with the color developer including at least one compound (A) having in a molecule thereof at least two aromatic ring moieties with specific structures, selected from the group consisting of an aromatic ring moiety having at least one carboxyl group and electron-attracting functional group, an aromatic ring moiety having at least one carboxyl group and electron-donating functional group, and an aromatic ring moiety having at least one carboxyl group, free of the electron-attracting and electron-donating functional groups. An aromatic carboxylic acid compound serving as the above-mentioned compound (A) and the producing method thereof are also disclosed.
一种热敏感记录材料具有支撑体和在其上形成的热敏感着色层,其中该着色层含有一种白色染料和一种色素显色剂,能够在施加热量时诱导白色染料发生显色反应,其中色素显色剂包括至少一种化合物(A),其分子中至少含有两个具有特定结构的芳香环基团,所述芳香环基团选自具有至少一个羧基和电子吸引基团的芳香环基团、具有至少一个羧基和电子给予基团的芳香环基团以及不含电子吸引和电子给予功能基团的芳香环基团。还公开了作为上述化合物(A)的芳香羧酸化合物及其生产方法。