Abstract
Microfibrillated Cellulose (MFC) consists of remarkably fibrillated fine fiber. The unique structure of MFC swollen in aqueous suspension was characterized by arithmetic average fiber length and water retention values. Dranage behavior of pulp suspention on wire was controlled by controlling MFC addition to paper stock at wet-end. Furthermore, pigment retention, dye retention and tensile strength were improved by the MFC addition. These advantages of MFC as a wet-end additive for papermaking seem to be due to its large specific surface area and its micro-network formation between pulp fibers in papersheet.
