Abstract
UV curing technology could offer various advantages, spontaneous curing, high solid formulation and highly resistant coating surface. These characteristics are favorable to achieve ecologically friendly and economical printing system. Recent advances of imaging technology in electronic applications, particularly, display and microelectronic area, inspire the further development of new materials, including photoinitiator. In this paper, an overview of the radical photoinitiators foundation, their uses in UV-ink and UV-coating applications are given, including newly commercialized products. As a future trend, water soluble and low migrating photoinitiators are necessary to develop ecoefficent products. At the last section, cationic photoinitiators are also covered.
