和紙のサイジングに關する一考察

抄録

Sizing of Japanese-Style paper is very iifficult as compared with that of ordinary printing paper. This may he attributable to the fact that even a slightly excessive addition of sulphate of alumina in the stock weakens the reaction of “ Tororoaoi ” (Abelmoschus manihat), a mucous matter indispensable for uniform sheet formation in the manufacture of Japanese-style paper.
The paper aims to determine the critical amount of sulphate of alumina to be applied.