Water-based ink composition, preparation method and application thereof

The invention relates to a water-based ink composition and a preparation method thereof. The water-based ink composition is composed of: 2-10% of a drying agent, 20-50% of water-based resin, 5-15% ofethanol, 1-5% of a wetting agent, 2-10% of a thickening agent, 1-5% of a dispersing agent, 1-5% of a defoaming agent, 2-10% of pigment, 2-10% of a film-forming assistant and 20-40% of water. Specifically, the drying agent is selected from any one or a mixture of two or more of 2-hydroxy-N, N-dimethyl acetamide, 3-hydroxy-N, N-dimethyl propionamide, N, N-dimethyl acetamide, N, N-diethyl acetamide,dimethyl carbonate, diethyl carbonate and ethyl methyl carbonate. The raw materials are mixed uniformly according to the mass ratio and are then ground till uniform dispersion, thus obtaining the water-based ink composition. The water-based ink composition can change the drying performance of water-based ink, and greatly increase the intaglio printing speed up to 115m/min. 本发明涉及一种水性油墨组合物及其制备方法。该水性油墨组合物由干燥剂2～10％、水性树脂20～50％、