申请人:——
公开号:US20020045548A1
公开(公告)日:2002-04-18
A heat-sensitive recording sheet comprises an electron donative leuco dye, an acidic developer for developing the dye, and a sensitizer. The acidic developer has a main component of a phenolic compound that contains a sulfonyl group in a molecule. The sensitizer comprises an amide compound, N-(4-tolyl) -phenylacetic amide. An amide compound to be mixed with the N-(4-tolyl)-phenylacetic amide for use in the sensitizer is at least one compound selected from the group consisting of N -cyclohexylphenylacetic amide, N-phenylphenylacetic amide, N-(2-tolyl)phenylacetic amide, N-phenylphenoxyacetic amide, N-(4-tolyl)phenoxyacetic amide, N-phenyl-(4-tolyloxy)acetic amide and N-(4-tolyl)-(4-tolyloxy)acetic amide.
一种热敏记录片包括一种电子捐赠型白兰地染料、一种用于显影该染料的酸性显影剂和一种敏化剂。酸性显影剂的主要成分是分子中含有磺酰基的酚类化合物。敏化剂包括一种酰胺化合物,即 N-(4-甲苯基)-苯乙酸酰胺。与 N-(4-甲苯基)-苯乙酸酰胺混合用于敏化剂的酰胺化合物是至少一种选自 N-环己基苯乙酸酰胺的化合物、N-苯基苯乙酸酰胺、N-(2-甲苯基)苯基乙酸酰胺、N-苯基苯氧基乙酸酰胺、N-(4-甲苯基)苯氧基乙酸酰胺、N-苯基-(4-甲苯氧基)乙酸酰胺和 N-(4-甲苯基)-(4-甲苯氧基)乙酸酰胺。