Journal
JOURNAL OF THE TEXTILE INSTITUTE
Volume 107, Issue 5, Pages 614-624Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00405000.2015.1054144
Keywords
porosity; refractive index; fibre volume percentage; optical model; UV protection; fibre diameter
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Funding
- Commonwealth Scientific and Industrial Research Organization (CSIRO)
- Deakin University
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Ultraviolet (UV) radiation protection is becoming increasingly necessary for human health, and textiles play an important role. The interaction between UV light and textiles is a complex one, involving fibre, yarn and fabric parameters. In this study, an optical model is presented for examining the influences of fibre parameters on the UV protection offered by a bundle of fibres with a given mass. The effects of mean fibre diameter and fibre type on UV absorption were examined. The model was verified with results of UV-visible diffuse reflectance measurements on natural and synthetic fibres. When the mass of fibres was kept constant, within the measurement range in this study, a bundle of fibres with coarser fibres had a lower UV reflectance than that with finer ones. The model accurately predicted factors influencing UV protection, including fibre diameter, fibre transmittance, porosity and refractive index.
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