Special core paper for compounding high-grade grey paperboard and production process of special core paper

The invention relates to the technical field of papermaking, in particular to special core paper for compounding a high-grade grey paperboard and a production process of the special core paper. According to the invention, papermaking sludge, hydrochloric acid, a sodium sulfate solution and streptomycin sulfate are used as raw materials to prepare the bactericide with excellent bactericidal performance; the streptomycin sulfate and the dodecyl trimethyl ammonium chloride are compounded for use, so that the antibacterial property of the special core paper for compounding the high-grade grey paperboard is further improved under the synergistic cooperation of the streptomycin sulfate and the dodecyl trimethyl ammonium chloride; due to the use of pentaerythritol, the mechanical property of the special core paper for compounding the high-grade grey paperboard is improved to a certain extent, and the quality of the special core paper is effectively ensured; in addition, brush wood chips, waste cardboard paper, sludg