抄録
In this study, the effect of adding bulking agents on properties of recycled handsheet, and sizing performance was evaluated. The density of handsheet decreased with recycling, and the addition of bulking agents further reduced it. Repeated recycling increased the total pore volumes, and the addition of bulking agents further increased it. In any case, the addition of the bulking agents contributed to the AKD retention. The addition of one of the bulking agents improved the sizing performance further only AKD on recycled handsheet. In the case of recycling 5 times, the ratio of the pore diameter region ranting from 4 to 8μm, it was confirmed that the increase of pore volume by addition of the bulking agents.
