| abstract |
(57) [Summary]nPROBLEM TO BE SOLVED: To have excellent antihalation property capable of thermal bleaching. Providing a composition that:nSOLUTION: a) hexaarylbiimidazole, and And b) the following structure I:nEmbedded imagen (Where A 1 And A Two Are the same or different activated A methylene moiety, L 1 ~ L 7 Is independently substituted or unplaced Represents a substituted methine group, M represents a counter ion, and k represents the structure The number of counterions M needed to give I a neutral charge And p and q are independently 0 or 1, and r is Oxonol color represented by 0, 1, or 2) A heat bleachable antihalation composition containing sulfur. |