[Challenge] benzoxazine disulfide dye SOLUTION means formula (1) D 1 - (Z 1) r -Y 1 -S-A (In the formula, A is a hydrogen atom or formula (1a) * - represents a group represented by (Z 2) r -D 2 - 2 S-Y And are each independently of one another, substituted or unsubstituted, linear or branched, uninterrupted or interrupted, Y 2 and Y 1 is an alkylene group having 1 to 10 carbon atoms carbon atoms represents a (alkylene group having 1 to 10 carbon atoms) - arylene group of 10 carbon atoms or 5 arylene group of 10 carbon atoms 5 cycloalkylene group of 10 to 5 Z 1 and Z 2, independently of one another, respectively, Or expression represents the It is represented by substituted or represents a cationic biradical of a heteroaromatic compound or an aromatic unsubstituted where Asterisk * represents a binding to D 1 and D 2 and / or Asterisk ** represents the binding to Y 1 and Y 2 and / or W 1 represents 5 group CR or N And are each independently of one another, R 5 and 3, R 4 R 1, R 2, R is a hydrogen atom 14 carbon atoms 1 To number 2 carbon atom alkenyl group of 14 alkyl group of carbon atoms 5 10 aryl carbon atoms 5 aryl group of 10 - (alkyl group having 1 to 10 carbon atoms) - or carbon atom I represent an aryl group (of 10 carbon atoms 5) alkyl group of 10 to 1. ) Independently of each other, respectively, D 2 D 1 and the formula represents the residue of an organic dye is selected from the group represented by the Independent of each other, respectively, R 7 and R 6 is a hydrogen atom carbon atoms cycloalkyl group having 6 carbon atoms 3 alkoxy group having 1 to 20 carbon atoms, alkyl group having 1 to 20 carbon atoms represents a sulfonate group or carboxylate aromatic group is Anireto (anellated) aryl group having 5 to 10 And are each independently of one another, a hydrogen atom and R 12 10, R 11 R and 8, R 9 R is substituted or unsubstituted, branched, monocyclic or polycyclic, interrupted or linear is or is not interrupted, an alkyl group having 14 carbon atoms
