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The Nonwovens Formation in the Melt-blown Process

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Abstract:

Melt-blowing is an industrial method for the rapid production of nonwoven fibres. In melt-blowing a polymer is melted and extruded through a capillary while heated air is blown through an air nozzle. The aerodynamic drag of the air jets on the polymer provides the attenuation force that draws the polymer streams into fine diameter fibres. In this paper, the following factors are presented: a modified mathematical model of melt spinning for a pneumatic process accounting for the effects of structural transformation in the viscoelastic behavior of the spun polymer; the application of mathematical modelling to the melt-blown process; a novel method for nonwoven formation in airflow with supersonic velocity.

Tags: melt-blown process, mathematical modeling, supersonic airflow, nonwoven formation.

Published in issue no 5-6 (64-65) / 2007, pages 77–81.

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