Photocrosslinking dye is can take in the radiant energy, chemically with initiating active intermediate ability of a substance, be any need of UV-curing system.

• 光引发剂是能吸收辐射能，经过化学变化产生具有引发聚合能力的活性中间体的物质，是任何UV固化体系都需要的主要成分。