The Air-permeability of Non-woven Fabrics

Dent, R. W.

doi:10.1080/00405007608630571

Cited by 29 publications

(12 citation statements)

References 2 publications

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“…The various permeability tests to evaluate textiles and textile materials have been applied in practice in the industry for many years, and determinations of permeability and porosity have long been subjects of interest in this field. Previous studies investigated the relationship between air permeability and structural characteristics of nonwoven fabrics, such as fabric weight, thickness, density, and fiber diameter [55]. It has generally been demonstrated that air permeability decreases as thickness, weight, or fabric density increases.…”

Section: Air Permeability Measurementmentioning

confidence: 99%

A feasibility study on semi industrial nozzleless electrospinning of cellulose nanofiber

et al. 2015

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The current study focuses on the production of cellulose nanofiber through semi-industrial nozzleless electrospinning process. The cellulose biopolymer used for spinning process was extracted from rice straw as renewable, abundant, and inexpensive natural resource. The electrospinning device comprising one needle is extremely inefficient because of low productivity level of about 0.3 g/h. Thus, using the nozzleless electrospinning system guarantees the high productivity of nanofiber web for diverse applications. The successful electrospinning process is accomplished through systematic control of the surface tension, viscosity, and electric conductivity of aqueous solutions of cellulose. Moreover, a design expert software was used for providing experimental plan for the investigation of the influence of the operational conditions on the spinning properties of the selected solution. The polyvinyl alcohol with a weight ratio of 60 % relative to cellulose content was used as a biocompatible polymer to facilitate electrospinning process for producing the aqueous cellulose solution of 0.63 wt%. Based on the scanning electron microscopy images, and various selected parameters, namely, the drum rotation rate of 9 rpm, high voltage range of ±55 kV, the spinning temperature of 41°C, and 10-cm distance between drum and collector an average diameter of 89 ± 1 nm was arrived. The composite nanofibers used for filter production and their performance were evaluated by porosity analysis and permeability tests. Results show the negative impact of the weak mechanical strength as an obstacle in Penetration test. (It promotes by higher electrospinning time and reaching proper stiffness in web layer.) The permeability tests show a maximum value of 3.5 cm 3 /cm 2 /s at the maximum pressure of 120 Pa.

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Section: Air Permeability Measurementmentioning

confidence: 99%

A feasibility study on semi industrial nozzleless electrospinning of cellulose nanofiber

et al. 2015

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“…Several previous studies have addressed the relationship between air permeability and structural characteristics of nonwovens, including fabric weight, thickness, density and fiber diameter. [5,6,7,8,9] Generally, these studies have shown that air permeability decreases nonlinearly as thickness, weight or fabric density increases. However, in a study of 80 nonwoven filters, air permeability declined linearly with increases in thickness.…”

Section: Previous Researchmentioning

confidence: 99%

“…The same study also showed that fabric density had a more significant influence on air permeability than either thickness or fiber size. [5] In a study designed to determine how the method of conversion of a fiber web into a nonwoven fabric influenced air permeability, Kothari and Newton [6] found that among the needlepunched, stitchbonded and adhesive bonded fabrics that were evaluated, weight per unit area was a stronger determinant of air permeability than either thickness or fabric density. Evaluating the same data, Dent [7] maintained that the second most important factor was fabric density.…”

Section: Previous Researchmentioning

confidence: 99%

Pore Size and Air Permeability of Four Nonwoven Fabrics

Epps

Leonas

2000

International Nonwovens Journal

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The relationship between pore size and air permeability in two spunlaced fabrics and two spunbonded/meltblown/spunbonded (SMS) fabrics were investigated. Minimum, maximum and mean flow pore sizes were determined using liquid porosimetry. The influence of fabric weight and thickness on air permeability and pore sizes was also evaluated. For the spunlaced fabrics, air permeability was most highly correlated with mean flow pore size, while there was a significant correlation between air permeability and maximum pore size for the SMS fabrics. Liquid porosimetry is a useful technique in assessing pore sizes of nonwoven fabrics and can also aid in understanding the mechanism of air permeability.

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“…Air permeability is one of the foremost properties that affect the performance of these hygienic care products. Many researchers investigated the relationship between air permeability and structural features of nonwoven fabrics; namely porosity, fiber diameter, fabric weight, fabric thickness and density [5,[12][13][14][15][16][17][18]. Among these structural features, pore size is the determinant parameter for air permeability property.…”

Section: Introductionmentioning

confidence: 99%

Determination of Air Permeability Property of Air-Laid Nonwoven Fabrics Using Regression Analyses

Çelik

2017

PEN

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Air-laid nonwoven fabrics are generally used for hygienic care products such as diaper, adult nappy and sanitary napkins. Air permeability is one of the foremost properties that affect the usage performance of these hygienic care products. In this study, 10 different air-laid nonwoven fabric samples are produced. The porosity ratios of these samples are determined by digital image processing methods. Air permeability of the samples is tested by digital air permeability test device. Then regression analyses were applied to the experimental results using SPSS 21.0 package program. Finally regression equation was obtained for prediction of air permeability by using porosity, thickness and fabric weight.

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The Air-permeability of Non-woven Fabrics

Cited by 29 publications

References 2 publications

A feasibility study on semi industrial nozzleless electrospinning of cellulose nanofiber

A feasibility study on semi industrial nozzleless electrospinning of cellulose nanofiber

Pore Size and Air Permeability of Four Nonwoven Fabrics

Determination of Air Permeability Property of Air-Laid Nonwoven Fabrics Using Regression Analyses

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