Cooking-resistant water-based ink pigment and preparation method thereof

The invention relates to a pigment preparation method, in particular to a pigment for boiling-resistant water-based ink and a preparation method thereof, and the preparation method comprises the following preparation steps: S1, sequentially mixing different material additives according to a formula ratio, S2, stirring and pre-dispersing the materials mixed in the S1, S3, finely grinding the pre-dispersed raw materials in the S2, S4, uniformly mixing the materials, and S5, uniformly mixing the materials to obtain the pigment for boiling-resistant water-based ink. S5, filling the qualified raw materials in the step S4, S6, warehousing and temporarily storing the filled products in the step S5, and S7, rechecking the temporarily stored products in the step S6, so that the products can leave the factory. According to the invention, a plurality of raw materials can be more finely, rapidly and thoroughly mixed, the production efficiency is improved, compared with the currently used solvent-based ink, the ink is mor