Development of a dewatering method for fibrillated fibers

多姆塔尔公司是世界上最大的非涂布纸生产商之一，也是北美主要的纸级纸浆生产商之一。Domtar开发了一种具有高流体动力学比表面积的特定纸浆并获得专利，纤维长度损失最小，细粉产量更低。表面增强纸浆纤维（SEPF）先前在Innofibre进行了研究，并证明了纸浆在添加到其他纸张等级时作为纸张增强材料的潜力。纸浆脱水能力限制了其生产和商业化。经过脱水和再制浆后，纸浆的性能受到影响，纸浆的潜在使用价值明显下降。本计画将能了解实验室规模的机械脱水与热传脱水对纸浆的脱水效果。使用实验设计优化中试规模的脱水技术将为Domtar提供所需的信息，以植入适合SEPF的最有益的脱水系统。因此，Domtar将能够进一步发展SEPF的使用和商业化，并继续成为加拿大，北美和世界纸浆制造商的领导者。

Domtar Inc. is one of the largest producers of uncoated free sheet in the world and one of the main paper grade pulp producers in North America. Domtar has developed and patented a specific pulp with a high hydrodynamic specific surface area, with minimal loss in fiber length and lower fines production. The Surface Enhanced Pulp Fiber (SEPF) was previously studied in Innofibre and demonstrated the pulp potential as paper reinforcement when added in other paper grade. The pulp dewatering capacity limits its production and commercialization. After dewatering and re-pulping, the pulp properties are affected, and the potential use of pulp significantly decreased. This project will able to understand the dewatering effect on the pulp at laboratory scale dewatering involving mechanical water removing and dehydration by heat transfer. Optimization of pilot scale dewatering technologies using experimental designs will then give needed information to Domtar to implant the most beneficial dewatering system adapted to SEPF. Therefore, Domtar will be able to further develop the SEPF use and commercialization and to remain a pulp manufacturer leader in Canada, North America and in the world.