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Title: Air and water permeability characteristics of nonwoven fabrics
Authors: Bhattacharjee, D
Ray, A
Kothari, V K
Keywords: Air permeability;Darcy's coefficient;Fabric porosity;Pressure head;Typar fabric;Water permeability
Issue Date: Jun-2004
Publisher: NISCAIR-CSIR, India
IPC Code: Int. Cl.7 D04H 3/00; G01N 15/00
Abstract: Experimental investigations on air and water permeability characteristics of spunlaid heat-bonded Typar fabrics show a very close linear correlation between both the permeability values. The ratio of water permeability to air permeability is a function of the pressure head at which these values are measured. The values of air and water permeabilities themselves are a polynomial function of the fabric porosity. Hence, the knowledge of fabric porosity and the active pressure head would be enough to predict the air permeability and water permeability values of spun laid heat-bonded fabrics.  
Page(s): 122-128
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Appears in Collections:IJFTR Vol.29(2) [June 2004]

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