초록 열기/닫기 버튼
As paper documents or books were often damaged physically during the use and storage, they should be recovered to impart durability. Leaf casting is one of techniques to restore the damages, which fills the damaged parts of the paper by self-healing of fibers during the dewatering of fiber suspension on the suction table. In this study, the effects of pulp type and chemical spraying of the leaf casting process on the strengthening performance and the aging behavior were investigated. The pulp used for the leaf casting had effects on the apprearance, strength, and aging behavior. Compared to the spraying of methyl cellulose on the wet sheet, the spraying of methyl cellulose after drying is the most effective method for strengthening the paper. Even after 14-day aging, the paper had higher mechanical strength. The leaf casting could be applied to the papers with physical defects, and the strengthening effect could be improved by choosing a proper type of fiber and additional chemical spray treatment.
