White paper board, and printed matter, printed box or packaging container each produced using same

摘要

A white paper board in which the formation state of a paper layer is improved and of which the rigidity and the degree of whiteness can be controlled. The white paper board has a multi-layered structure composed of three or more layers, wherein an inorganic filler is added to each of a front-side layer and a back-side layer in an amount of 1.0 to 9.0% relative to the amount of pulp fibers, the inorganic filler is added to an intermediate layer in an amount of 2.0 to 15.0% relative to the amount of the pulp fibers, and the white paper board is produced by combining the front-side layer, the intermediate layer and the back-side layer. As the inorganic filler, at least one component selected from light calcium carbonate, heavy calcium carbonate, clay and talc or a combination of two or more components selected from the above-mentioned materials is used. For example, the light calcium carbonate is of a rosetta type.