TAPPI TIP 0404-04 2011, Recommended tensions in dryer fabrics, provides engineering guidance for selecting appropriate operating tension levels for dryer fabrics used on paper machines. The paper explains how fabric tension affects heat transfer, paper shrinkage, sheet quality, fabric life, machine runnability, and equipment loads.
It includes theoretical relationships between fabric tension, dryer diameter, machine speed, air-film thickness, and contact pressure; summarizes experimental results for newsprint, fine paper, and linerboard; presents recommended tension curves in English and metric units; and describes a method for calibrating dryer fabric tension indicators. Safety precautions, measurement guidance, material data, keywords, and cited technical literature are also included.
Application Scope: For papermakers, process engineers, maintenance personnel, dryer fabric suppliers, and technical specialists responsible for paper machine drying performance, fabric tension, and runnability.
