| abstract |
The thermoreactive composition of the present invention contains at least one cyanine compound (α), a resin (β) having at least an ethylenically unsaturated bond and a hydrophilic group, and a thermal polymerization initiator (γ). Preferably, the resin (β) has a unit represented by the following general formula (I-1)), a unit represented by the following general formula (I-2), and a unit represented by the following general formula (I-3) . It is also preferable that the thermal polymerization initiator (γ) is an azo thermal polymerization initiator. In the following formulae, the definitions of Y 1 , X 1 , and R 1 to R 4 refer to the specification. |