A New Pulping Method for Non-wood Fiber Resources for the Purpose of Lightening the Loading to Environment

The soft pressure type kneading machine (New Taizen) which has been used as useful deinking machine was attempted to use as a new instrument for the pulping of non-wood resources. This new pulping method is expected to lighten the loading to environment in comparison with traditional alkaline chemical pulping. We applied it to the straws.It was revealed that this new pulping method is hopeful for the straws, especially for a rice straw. Although some shives (fiber bundles) were found in the treated pulp, they may be separated into individual fibers by subsequent refining and bleaching or by higher alkali addition.