Packaging box green printing process based on water-based ink

The invention relates to the technical field of packaging box production, and discloses a packaging box green printing process based on water-based ink. Comprising the following steps: S1, ink preparation: weighing the following raw materials in parts by weight: 10-18 parts of pigment, 2-6 parts of diethylene glycol, 3.5-5 parts of an emulsifier, 3-7 parts of triethylene glycol monobutyl ether, 1.9-3.9 parts of ethylene glycol, 1.5-2.0 parts of EDTA tetrasodium salt, 4-6 parts of an adhesive, 2.5-5 parts of a defoaming agent, 1.0-4 parts of a dispersing agent, 3-10 parts of an adhesion auxiliary agent and 30-50 parts of deionized water, and then mixing the raw materials, and uniformly stirring in a mixing mill and then taking out for later use. And S2, leveling and preheating are conducted, specifically, a to-be-printed packaging box is placed on leveling equipment and then pressed and leveled, so that the surface of the packaging box is kept flat, and then the leveled to-be-printed product is fed into an air