An infrared absorbing composition including a compound that is represented by formula (1) and has solubility of 30 mg/mL or less in toluene at 25°C, an organic solvent having a solubility parameter of from 7.3 to 12.1, and a resin is disclosed. In formula (1), each of R1 to R16 independently represents a hydrogen atom or a substituent group, provided that at least one of R1 to R16 represents an R17-X- group or that the compound represented by formula (1) contains at least one condensed-ring structure in which any adjacent two of R1 to R16 form a ring; X represents -S-, -NH-, -NR18-, or -O-; each of R17 and R18 independently represents an aliphatic group or an aryl group; and M represents two atoms selected from the group consisting of hydrogen atoms and monovalent metal atoms, or a divalent metal atom, or a divalent substituted metal atom moiety including a trivalent or tetravalent metal atom and a substituent group.
本发明公开了一种红外吸收组合物,该组合物包括由式(1)表示且在 25°C 时在
甲苯中的溶解度为 30 mg/mL 或更低的化合物、溶解度参数为 7.3 至 12.1 的有机溶剂和
树脂。在式 (1) 中,R1 至 R16 中的每一个独立地代表氢原子或取代基,条件是 R1 至 R16 中至少有一个代表 R17-X- 基团,或者式 (1) 所代表的化合物包含至少一个缩合环结构,其中 R1 至 R16 中任意相邻的两个形成一个环;X 代表-S-、-NH-、-NR18-或-O-;R17 和 R18 各自独立地代表脂肪族基团或芳基;以及 M 代表选自氢原子和一价
金属原子组成的组中的两个原子,或二价
金属原子,或二价取代
金属原子分子,包括三价或四价
金属原子和取代基。