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1 2011

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Press Felts Coated with Electrospun Nanofbres

Hakala T., Heikkilä P.

Fibres & Textiles in Eastern Europe

2011

Vol. 19, no. 1 (84)

89-93

Press felt specimens were coated with nanofbres using the electrospinning process. The coating weight of the nanofbre layer and the spinning distance were varied in order to study the homogeneity and coverage of the nanofbre web. The specimens were studied by scanning electron microscopy (SEM) and laser proflometry to understand how the nanofbre web attaches to the press felt, and how nanofbres improve the surface smoothness. The surface pore size, thickness, weight per unit area and air permeability of the specimens were measured. The surface smoothness improved and the air permeability decreased slightly. The adhesion of the nanofbre web to the press felt and the mechanical strength of the nanofbre web were poor. The study showed, however, that the combination of electrospinning and felt structures has the potential to enhance press felt performance.