Mechanics of tissue making: modelling and experiments

低密度薄纸和毛巾纸产品已经生产和消费了几十年。然而，目前对组织制造科学的理解还处于萌芽状态。全球对纸巾产品的需求不断增长，特别是在亚洲和南美洲不断扩大的市场，刺激了这一制造业的竞争和技术的经验发展。从艰苦的，往往是昂贵的，实证研究中出现的专有技术受到制造商的密切保护，以保持在加拿大和世界范围内造纸工业这个不断增长的部门的竞争优势。 该提案建立在2015年UBC研究人员和工业合作伙伴之间建立的合作伙伴关系基础上：克鲁格产品公司。（北美领先的卫生纸生产商）、FPInnovations（加拿大林业部门和生物产品研究和创新的旗舰组织）、索理思（卫生纸生产所用化学品的领先供应商）。这些合作伙伴的综合知识和专业知识将确保这种合作的成果具有影响力并与工业实践相关。 我们致力于开发生产过程的基本力学模型，测量和量化该过程赋予纸巾的绉结构，以及对纸巾产品宏观性能的最终影响，如拉伸强度，模量，柔软度和拉伸度。同时，将进行实验室规模和工业规模工艺的实验研究，以推动建模过程。分析和数值模拟的组合将与关键的实验研究相结合，以获得与起皱相关的组织制作过程的全面了解。该项目目标的成功实现将刺激加拿大卫生纸行业的创新。

Low density tissue and towel paper products have been produced and consumed for many decades. Yet the present understanding of the science of tissue making is nascent. The globally growing demand for tissue products, particularly in expanding markets in Asia and South America, has spurred competition and empirical development of technologies in this manufacturing sector. Proprietary technologies emerging from the painstaking, and often costly, empirical studies are closely guarded by the manufacturers to retain competitive advantage in this growing sector of paper industry in Canada and worldwide. This proposal builds on a collaborative partnership has been established in 2015 between UBC researchers and industrial partners: Kruger products inc. (leading tissue producer in North America,) FPInnovations (the flagship Canadian organization for research and innovation in forest sector and bio products,) Solenis (a leading supplier of chemicals used in tissue production). The combined knowledge and expertise of these partners will ensure that the outcomes of this collaboration are impactful and relevant to industrial practice. We seek to develop fundamental mechanics models for the manufacturing process, measure and quantify the crepe structure this process imparts to a tissue, and the eventual impact on macroscopic properties of a tissue product, such as tensile strength, modulus, softness and stretch. Concurrently, experimental studies on lab scale and industrial scale processes will be undertaken to drive the modelling process. A combination of analytical and numerical modelling will be combined with critical experimental studies to gain a comprehensive understanding of the tissue making processes relevant to creping. Successful realization of the goals of this project will spur innovations in tissue industry in Canada.