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Dryer fabrics are typically made from various synthetic polymer monofilaments in a wide range of designs (Figure 11.4) which provide the mechanical integrity, air permeability and surface characteristics suitable for different paper grades, dryer systems and positions within the dryer part. Contributing to the mechanical integrity are tensile properties, structural rigidity, stability and uniformity across the machine. Also important over a running period of maybe one year are resistance to wear and bending characteristics around small vacuum rolls in single-tier systems. |
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