| 摘要 |
PROBLEM TO BE SOLVED: To provide a black color multilayered paper board having low color unevenness and clear color tone.SOLUTION: There is provided a multilayered paper board consisting of a surface layer, a back layer, and a middle layer formed between the surface layer and the back layer, each of the layers mainly containing pulp. The surface layer and the back layer contain 1 to 8 pts.mass of a black color direct dye based on 100 pts.mass of pulp, and 5 to 15 pts.mass of a black pigment based on 100 pts.mass of the pulp. The total content of the black dye and the black pigment is 10 pts.mass or more based on 100 pts.mass of the pulp. |
