Low-viscosity colored system light-cured printing resin as well as preparation method and application thereof

The invention belongs to the technical field of light-cured resin, and provides low-viscosity colored system light-cured printing resin as well as a preparation method and application thereof. The two/three-functionality polyurethane acrylate, the epoxy acrylate, the monomer, the accelerant, the photoinitiator, the dispersing agent, the bentonite, the fumed silica and the color paste are used as main raw material components of the low-viscosity colored system photocuring printing resin; wherein di/tri-functional polyurethane acrylate with the viscosity of 6000-60000cps and epoxy acrylate with the viscosity of less than 50000cps (25 DEG C) are adopted, a monomer with the weight-average molecular weight of less than or equal to 500 is adopted, and bentonite with a slight low-shear thickening effect is matched with fumed silica with extremely low thixotropy, so that the shear thinning effect is extremely low, and the anti-settling effect is remarkable. 本发明属于光固化树脂技术领域，提供了一种低粘度有色体系光固化打印树脂及其制备方法和应用。本发明采用二/三官能度聚氨酯丙烯