Base paper anchor coating agents, anchor coating layers, laminates, and paper barrier materials for paper barrier materials

摘要

PROBLEM TO BE SOLVED: To provide an anchor coating agent for a base paper of a paper barrier material having leveling property and mechanical stability. A styrene-butadiene resin emulsion, a styrene-acrylic resin emulsion, an alkali-soluble resin, and an aqueous medium are contained, and the ratio of the resin of the styrene-butadiene resin emulsion to the solid content of the anchor coating agent is 50. The ratio of the resin in the styrene-acrylic resin emulsion is 3% by mass or more and 25% by mass or less, and the ratio of the alkali-soluble resin is 3% by mass or more and 25% by mass or less. Anchor coating agent for base paper of paper barrier material. [Selection diagram] None