I. Introduction: Optical fiber coloring ink is an essential raw material for optical cable production. Based on technical cooperation with relevant universities and scientific research institutions, the company has developed industrial manufacturing technology for UV100 fiber-optic pigmented ink after more than three years of technical research and application testing. The products not only filled the blank of domestic products in 2004, but also The quality of the products reaches the level of similar products of foreign companies. Second, the technical principle: fiber optic coloring ink UV100's main chemical components include oligomers and monomers, photoinitiators, pigments and additives. Oligomers and monomers are the backbone structures in the formulation ingredients. They determine the physical properties of the ink (the viscosity of the liquid ink and the modulus of the ink after curing). Photoinitiators are added to the formulation because they are exposed to UV light and can generate free radicals.