| With the advantages of environmental protection, sanitation, economy, saving resources and having well printability and so on, the water-based ink is being greeted more and more in graphic arts trade. However, the water-based ink produced in home and abroad at present generally has the problem of bad stability, water-repellency and glossiness, which has badly blocked the widespread application of it. Aimed at this practical status quo, a research is launched on in this paper.Water is the solvent in the water-based ink, which determines the selection of its vehicle is localized in the range of water-soluble or water-dispersible, as a result the characteristics of the water-based ink and the solvent-based ink may have a biggish difference. Based on the right recognition of the structure system and the application mechanism of the water-based ink, the influence factors of stability, water-repellency and glossiness are analyzed systematically. Under the precondition for improving the stability, water-repellency and glossiness, the most fundamental formulation of the water-base ink is studied and tested through experiments, the previous theoretical analyzes are combined, the water-based ink formulations are adjusted continuously, and the results are compared and analyzed. Experiments find that the stable dispersion of the water-based ink can help to improve the stability, water-repellency and glossiness; the densifier can efficiently improve the viscosity of the system and do good to the dispersion; the temperature may influence the viscosity and do bad to the stability; the amount of the water in the water-based ink and the surface tension of it may have a biggish affection to the glossiness; the amine substance can harmonize the stability and the water-repellency for the system; the emulsoid resin operates the function of the resin as well as the role of the surfactant, which can improve the stability, water-repellency and glossiness quite available.
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