Ultraviolet-cured rotary silk-screen printing ink with LED as light source

The invention discloses an ultraviolet-cured rotary silk-screen printing ink with LED as a light source. The ultraviolet-cured rotary silk-screen printing ink comprises, by weight, 5 to 30 parts of pigment, 40 to 60 parts of radiation-cured resin, 1 to 15 parts of a photoinitiator, 5 to 20 parts of an active diluent, 0 to 10 parts of a solvent and 3 to 8 parts of an auxiliary agent. Electric energy consumed in curing of a silk-screen printing ink composition provided by the invention is about 1/4 of electric energy consumed by a common ultraviolet lamp; emission of CO2 is substantially reduced; and ozone is not generated. The silk-screen printing ink composition provided by the invention has viscosity of 50 to 350 mpa.s, overcomes problems in drying of a thick ink layer under irradiation of a low-power ultraviolet lamp and realizes instant drying under the rotary silk-screen printing condition of a high speed of 40 to 200 m/min; moreover, bonding between an ink film and a substrate is firm, and after curing, , each performance index (adhesion, friction resistance, chemical resistance and the like) of the printing ink accords with requirements on printing of securities.