Insight into property development of LC- refined NBSK and its mixtures

自然资源的收获是加拿大经济繁荣的支柱。没有可行的纸浆和造纸业，就不可能有可行的林业。传统上，不列颠哥伦比亚省和加拿大的纸浆和造纸部门针对美国市场的通信用纸。最近的经济衰退，再加上无纸化通信的颠覆性技术，导致新闻纸和通信用纸的消耗量减少了40%。这一转折点意味着森林工业的生存取决于**加拿大开发高质量北方漂白针叶木（NBSK）纤维的创新新用途的能力。**纸浆行业正在全球范围内积极开发NBSK纤维在通信纸、包装、卫生产品和新应用中的新市场。这种纸浆通常用于增强含有机械纸浆或来自南方气候的短而快速生长的纤维的纸制品的强度。造纸商使用NBSK的一个关键操作是精炼——造纸前的一种机械处理。**如果操作得当，可大大提高纸浆的品质；如果处理不当，牙髓质量可能仍然不发达。因此，必须向造纸商提供关于如何最好地单独或与短纤维混合精制NBSK纸浆的关键知识和指导方针**。不幸的是，这一领域的知识在一些关键方面是有限的。同样缺乏关于NBSK如何增强浆料混合物强度的知识。本研究的目的是填补这些关键的知识空白。

The harvest of natural resources is the backbone of a thriving Canadian economy. Without a viable pulp and**paper industry, it is not possible to have a viable forestry industry. Traditionally, BC and Canada's pulp and**paper sector targeted communications papers in the US market. The recent economic downturn, coupled with**disruptive technologies for paperless communication, has resulted in a 40% reduction in newsprint and**communication paper consumption. This turning point means that the forest industry's survival depends on**Canada's ability to develop innovative new uses for high quality Northern Bleached Softwood Kraft (NBSK)**fibres.**The pulp sector is actively developing new markets around the world for NBSK fibre in communication**papers, packaging, hygiene products, and novel applications. This pulp is often used to enhance the strength of**paper products containing mechanical pulps or short, fast-growing fibres from southern climates. A key**operation in the use of NBSK by papermakers is refining-a mechanical treatment just prior to papermaking.**When done correctly, pulp quality is greatly enhanced; when done poorly, pulp quality may remain**undeveloped. It is therefore imperative that papermakers be provided with the key knowledge and guidelines**on how to best refine NBSK pulps, alone, or when mixed with short fibres. Unfortunately, knowledge in this**field is limited in some key aspects. Similarly lacking is knowledge on how NBSK reinforces strength of pulp**mixtures. The objective of this research is to fill these critical gaps in knowledge.