USE OF “ NORIASA ” FOR JAPANESE PAPER MAKING

Abstract

The mucilage obtained from special plant called “ Noriasa” recently developed by Prof. Kagawa of Kyoto University, has been experimented for Japanese paper making at Takasago Mill of Mitsubishi Paper Co. The mucus content of Noriasa is found to be less compared with Tororoaoi but the effect on paper making is about the same. Besides, microscopical examinations show that the mucilage obtained from Noriasa has very much the similar sharacteristics of Tororoaoi, especially with respect to elongation of the mucous liquid, drop in viscosity due to lapse of time after extraction, diminishing of viscosity at higher temperature, changes in viscosity is unmarkeetc. The fact that Noriasa grows in high spirits in hot summer when Tororoaoi due to stirring, table, might be of worth for thepaper makers to notice.