Prediction of one-layer woven fabrics air permeability using porosity parameters

Zupin, Živa; Hladnik, Aleš; Dimitrovski, Krste

doi:10.1177/0040517511424529

Cited by 78 publications

(73 citation statements)

References 7 publications

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“…[2][3][4]. A number of authors [5][6][7][8] have dealt with the possibility to predict the value of the air permeability of fabrics based on their structural parameters. In some applications, woven fabrics are used as filters or protective barriers whose function is to prevent the penetration into the human body of various micro particles or microorganisms.…”

Section: Introductionmentioning

confidence: 99%

“…The elements of the structure which decide whether a woven fabric is capable of performing such a function are the inter-yarn pores, dependent on the weave and structural parameters of the fabric. These factors need to be pre-determined in the designing phase and realized in the weaving process [6,7,8]. The structure of a fabric is usually characterized by its porosity [8,9,10,11].…”

Section: Introductionmentioning

confidence: 99%

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The influence of structural variations on wool fabrics air permeability

Jordeva¹,

Tomovska²,

Zafirova³

2016

Adv techn

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Woven fabrics are materials of a sophisticated structure. Basic structural parameters, the raw material, linear density of warp and weft yarn, number of yarn twist, warp and weft density, warp and weft crimp, as well as weave contribute to the obtained properties of the fabric. Certain basic parameters of the fabric can be controlled directly either during the preparatory processes or during the weaving process itself. There are some important structural parameters, however, for which no direct quantitative controls exist. Since all structural parameters are closely interdependent, the lack of direct control results in an imperfect control of the fabric structure. The subject of the investigation was how small variations in semi-worsted wool fabric constructional parameters influence the air permeability, and to which extent they can be controlled in the design process and weaving of fabrics. The experiment showed that yarn count, warp and weft density and warp and weft crimp are highly interrelated, leading to small variations in the fixed sett. The statistical significance of small variations in the groups of fabrics was confirmed by the analysis of variance. The analysis confirmed that there were no differences in mass, although all other structural parameters differed. Additionally, a post-hoc Bonferroni test showed that the structural parameters of the group of fabrics, which has a practically balanced structure, are always different to those of groups g2 and g3. Fabric alternations done on the same warp, in such a manner to achieve the same mass per square meter, showed that the change in weft yarn count and weft density influenced the fabric structure as a result of the crimp interchange. However, there was not a statistically significant difference among the three groups of fabrics when tested for air permeability.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of structural variations on wool fabrics air permeability

Jordeva¹,

Tomovska²,

Zafirova³

2016

Adv techn

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“…Introducing some simplifications of the unit cell geometry (neglecting crimp if present, assuming straight warp and weft yarns with constant cross-section, assuming rectangular cross-section of the binder yarn), the actual gap cross-section ( Fig. 3) can be characterized by the hydraulic radius [22][23][24] :…”

Section: Sub-layer Of 3d Woven Fabricsmentioning

confidence: 99%

Through-thickness permeability study of orthogonal and angle-interlock woven fabrics

et al. 2014

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Abstract:Three-dimensional (3D) woven textiles, including orthogonal and angle-interlock woven fabrics, exhibit high inter-laminar strength in addition to good in-plane mechanical properties and are particularly suitable for lightweight structural applications. Resin Transfer Moulding (RTM) is a cost-effective manufacturing process for composites with 3D woven reinforcement. With increasing preform thickness, the influence of through-thickness permeability on RTM processing of composites becomes increasingly significant. This study proposes an analytical model for prediction of the through-thickness permeability, based on Poiseuille's law for hydraulic ducts approximating realistic flow channel geometries in woven fabrics. The model is applied to four 3D-woven fabrics and three 2D woven fabrics. The geometrical parameters of the fabrics were characterized employing optical microscopy. For validation, the through-thickness permeability was determined experimentally. The equivalent permeability of inter-yarn gaps was found to account for approximately 90 % of the through-thickness permeability for the analysed fabrics. The analytical predictions agree well with the experimental data of the seven fabrics.

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“…al. [7]. They analyzed different weave structures and fabric densities to develop models for fabric air permeability.…”

Section: Introductionmentioning

confidence: 99%

Prediction and Correlation of Air Permeability and Light Transmission Properties of Woven Cotton Fabrics

Nazir

Hussain

Afzal

et al. 2017

Autex Research Journal

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The aim of this study was to develop statistical models for predicting the air permeability and light transmission properties of woven cotton fabrics and determine the level of correlation between the two parameters. Plain woven fabrics were developed with different warp and weft linear densities, ends per inch and picks per inch. After desizing, scouring, bleaching, drying and conditioning, the air permeability and light transmission properties of the fabric samples were determined. Regression analysis results showed statistically significant effect of the fabric ends, picks and warp linear density on both the fabric air permeability and light transmission. Correlation analysis was performed to analyze the relation between the fabric air permeability and light transmission. A linear equation was also formulated to find the fabric air permeability through transmission of light intensity. A fitted line plot between the air permeability and light transmission exhibited significant correlation with R-sq. value of 96.4%. The statistical models for the prediction of fabric air permeability and light transmittance were developed with an average prediction error of less than 7%.

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Prediction of one-layer woven fabrics air permeability using porosity parameters

Cited by 78 publications

References 7 publications

The influence of structural variations on wool fabrics air permeability

The influence of structural variations on wool fabrics air permeability

Through-thickness permeability study of orthogonal and angle-interlock woven fabrics

Prediction and Correlation of Air Permeability and Light Transmission Properties of Woven Cotton Fabrics

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