Fibre Chemistry

, Volume 41, Issue 4, pp 246–247 | Cite as

Evaluation of a model for predicting the air-permeability of needle-punch and calendered material

  • A. V. Dedov
  • I. B. Esmurziev

The proposed model has limited use for evaluating the effect of the needle-punching and calendering regimes on the air-permeability of the material. It is somewhat difficult to correct the model to consider the effect of changes in thickness during needle-punching and calendering. The limited use of the model is due to the use of the filling factor and thickness of the material as the structural parameter.


Bulk Density Surface Density Filling Factor Linear Density Thickness Change 
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Copyright information

© Springer Science+Business Media, Inc. 2009

Authors and Affiliations

  • A. V. Dedov
    • 1
  • I. B. Esmurziev
    • 1
  1. 1.Poisk Scientific and Industrial Innovation CenterMoscowRussia

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