Overview
ABSTRACT
Ensuring both protection and comfort is a major challenge for technical textiles. A fully waterproof material provides protection but not wearer comfort owing to the impossibility of exchanging heat and moisture with the external environment. Comfort and protection are therefore two conflicting concepts that require a compromise provided by air permeability of fabrics. To design a garment made of several layers and to dimension textiles reliably, prediction of permeability is useful. This article presents possible methods of measurement and prediction together with new prediction tools adapted to the realities of the textile sector.
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Eva GRINENVAL : Doctorate from Lyon University - CPE Engineer Lyon - NIMBE research engineer, CEA, CNRS, Université Paris-Saclay, CEA-Saclay, 91191 Gif-sur-Yvette Cedex, France
INTRODUCTION
The air permeability of a fabric is, by definition, its ability to allow air to pass through it. Measuring this capacity is a non-destructive physical test used in research and development to dimension a new product, as well as in quality control. Examples include ageing control of parachutes or airbags, cellulose density in wipes or the degree of contamination of filter fabrics. In the case of clothing, textiles act as the interface between the wearer and the climatic environment. In this way, the air permeability of a fabric is of interest for the comfort of the wearer, and complements other physical tests to characterize it. The personal protective equipment (PPE) and sportswear sectors are striving to develop garments that offer ever greater comfort. In fact, this notion prevails in purchasing criteria.
Field: Textile analysis technology
Degree of technology dissemination: Maturity
Technologies involved: Permeability measurements and prediction methods
Applications: Technical textiles
Main French players :
Competitive clusters: PÔLE FIBRES, TECHTERA, UP-TEX
Competence centers: IFTH, CETI, CETELOR
Technical textile manufacturers: EUROPROTECT, SOFILETA, POLYTRAME, PORCHER INDUSTRIES, KLOPMAN
Other global players: TEN CATE, SIOEN
Contact: [email protected]
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KEYWORDS
air permeability | textile material | multilayer | model for prediction | comfort
Prediction methods for the permeability property of fabrics
Comfort
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