Recently, visible light sensitive photoinitiation systems have been developing very quickly, owing to the rapid development of both laser and photocuring technologies.Of these systems intra-ion-pair electron transfer dye photosensitization systems specially attract great attention. One of the reasons for this is that a large variety of available dyes can al-most cover the whole visible and near infrared spectrum range and thus can be chosen as the photosensitization component based on different requirements. On the other hand, the photosensitization and initiation components are placed together before irradiation by the coulombic attraction between the cations and anions, which overcomes the limitation of the diffusion process to ordinary bimolecular energy or electron transfer and thus increases