Mechanics of creping: modeling and experiments

卫生纸产品在日常生活中使用。虽然印刷纸和书写纸的需求多年来有所下降，但随着亚洲和南美市场的迅速扩大，对卫生纸的需求正在增长。然而，关于组织制造工艺的科学知识，特别是关于干皱的科学知识是分散的，而且仍处于萌芽阶段。这个行业的激烈竞争阻碍了每个制造商从艰苦的实验中获得的科学知识的共享。另一方面，在理解屈曲分层力学方面的进步，与起皱过程有关，尚未在严格的工业相关设置中应用。本提案旨在通过系统的建模和实验方法为这项任务做出贡献。本计画的主要目标是透过机械模型和实验室规模及商业规模的实验，了解组织制造中的起皱现象。从第一原理建立的验证模型的开发将对加拿大组织工业的知识库做出重大贡献。这个项目的关键优势在于合作伙伴。Forest Product Innovations（加拿大领先的非营利性林产品创新者）、加拿大索理思（creping化学品供应商）和克鲁格（Kruger products）（加拿大领先的知名品牌纸巾制造商，如Purex和Cashmere纸巾）是参与组织，为实现该项目的目标贡献了大量的财政和技术资源。

Tissue products are used in every day life. While the demand for printing and writing paper declined over the years, demand for tissue products is growing with rapidly expanding markets in Asia and South America. However, scientific knowledge of tissue manufacturing processes, particularly on dry creping, is scattered and still in its embryonic stage. Intense competition in this industry sector precludes the sharing of scientific knowledge gained by each manufacturer from painstaking experimentation. On the other hand advancements in the understanding of buckle-delamination mechanics, relevant to creping process, are yet to be applied in a rigorous and industrially relevant setting. This proposal seeks to contribute to this task through a systematic modeling and experimental approaches. Fundamental understanding of creping in tissue making using mechanistic models and experiments on lab scale and commercial scale pilot machine is the overarching goal of this project. Development of a validated model built from first principles will be a significant contribution to the knowledge base of Canadian tissue industry. The key strength of this project is in the partners. Forest Product Innovations (leading Canadian not for profit forest products innovator), Solenis Canada (creping chemical supplier) and Kruger products (leading Canadian tissue maker of popular brands such as Purex and Cashmere tissues) are the participating organization contributing significant financial and technical resources to accomplish the goals of this project.