Project
Paper structure control through boundary layer flow
Project DescriptionOne of the key structural properties of a paper or board sheet is the fibre anisotropy. This quantity is only a function of the sheet forming process. Fibre anisotropy variations in the plane of the paper sheet as well as throughout the sheet thickness can cause defects in the final product. However, if fibre anisotropy could be controlled it would open new possibilities, through i.e. headbox design, to actively control the structure of paper products. Based on earlier findings there seems to be a large potential to use boundary layers to control fibre orientation and flocculation in papermaking suspensions.
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