Seeking for the future image of Pulp and Paper Research. Pulping and Bleaching.

Matsukura Motoo

doi:10.2524/jtappij.50.757

Research and Development should seek for the increase of productivity because pulp and paper industry depend on the big capital investment. Therefore R & D for pulping and bleaching is also seeking for the effective productivity with conservation of resources and environmental protection.<BR>There are two issues in Kraft pulp as a main material, a low yield in pulping and environmental problems by bleaching effluent. It may be important to plant the specie which gives higher yield for a increasing of pulp yield. Then it is the most important topic to create the new specie by modifying lignin structures, and to improve plantation technology. On bleaching technology there is a trend to minimize the total organochlorine compounds in a mill effluent. And many researches are conducting to develop non-chlorine bleaching. Recently a new large plant for organosolve pulping was started to prove the feasibility. It will be expected to start the operation in future.<BR>There are several issues in mechanical pulp as another main material, namely 1) utilization of low grade resources, 2) energy saving, 3) light and heat induced yellowing, 4) pitch troubles, 5) environmental load of the effluent. It would be necessary to improve opacity to increase the use of radiata pine as a new resource. Biomechanical pulping method was developed for energy saving. But the method can not be applied into the process because of cost and a low brightness. Finally application of biotechnology into papermaking process for pitch troubles was conducted successfully.

Seeking for the future image of Pulp and Paper Research. Pulping and Bleaching.

Bibliographic Information

Abstract

Journal

Keywords

Details 詳細情報について

Export

Report a problem