| abstract |
A paper manufacturing method and a pitch removing agent capable of efficiently removing pitch. When producing paper using waste paper, in the step of deinking by flotation and / or in the preceding step, the pulp slurry has an average polymerization degree of 300 to 2500 and a saponification degree of 70 to 88 mol. %, Where the absorbance at a wavelength of 490 nm is y (Abs) and the degree of saponification is x (mol%), and a pitch removing agent made of polyvinyl alcohol satisfying the formula (A) is added. [Selection figure] None |