Environment-friendly printing ink for packaging box and preparation method of environment-friendly printing ink

The invention relates to the technical field of ink blending, in particular to environment-friendly ink for a packaging box and a blending method of the environment-friendly ink. Setting a detection period, obtaining the rotating speed of each detection period, and calculating to obtain a rotating speed influence value; generating a stirring rotating speed signal according to the fluctuation value of the rotating speed ratio in the detection period; acquiring ink data based on the stirring rotating speed abnormal signal, and calculating to obtain an ink state influence value; generating an ink state signal based on the ink state influence value; acquiring ink stirring data, and calculating to obtain an ink influence value; acquiring an ink influence value, and calculating to obtain a total adjustment rotating speed; and the total adjustment rotating speed is fed back to the controller, and the rotating speed of the stirring equipment is adjusted, so that the ink can be fully stirred, and the caking phenomenon