Bibliographic citations
Apaza, E., (2022). Influencia de los parámetros colorimétricos y de construcción de la tela de tejidos planos de algodón en el factor de protección ultravioleta UPF determinado mediante técnica in vitro [Tesis, Universidad Nacional de Ingeniería]. http://hdl.handle.net/20.500.14076/24556
Apaza, E., Influencia de los parámetros colorimétricos y de construcción de la tela de tejidos planos de algodón en el factor de protección ultravioleta UPF determinado mediante técnica in vitro [Tesis]. PE: Universidad Nacional de Ingeniería; 2022. http://hdl.handle.net/20.500.14076/24556
@misc{renati/712474,
title = "Influencia de los parámetros colorimétricos y de construcción de la tela de tejidos planos de algodón en el factor de protección ultravioleta UPF determinado mediante técnica in vitro",
author = "Apaza Mamani, Enver Gary",
publisher = "Universidad Nacional de Ingeniería",
year = "2022"
}
Forty-two cotton woven fabrics of different colors were analyzed in order to determine the ultraviolet protection factor and relate them to the colorimetric and construction parameters of the fabrics. The samples were distributed in three groups, so that each group of fabric shares the same fabric construction parameters. Samples of each fabric were taken to evaluate their physical properties in the laboratory: fabric density, mass per unit area (weight) and thickness, to then calculate the fabric coverage. Through the in vitro technique, using the UV-VIS spectrophotometer and in accordance with AATCC 183-2014 Standard, the ultraviolet radiation transmitted through the fabric samples was measured and the ultraviolet protection factor (UPF) was calculated. The ultraviolet protection of the fabrics in the wet state was also evaluated. The color of the fabrics was measured in an SF-550 reflectance spectrophotometer and using the Tools version 1.1 software, the reflectance measurements were processed and the colorimetric values of the CIE L*a*b* color space were calculated. According to the results, the fabrics were classified as lightweight fabrics and it was concluded that the ultraviolet protection of the fabrics improves as the fabrics increase the intensity of the color and that this improvement is more significant in those fabrics that have greater coverage. Likewise, the humidity in the fabric varies the UPF of the fabrics, but the dark colored fabrics maintained good protection against ultraviolet rays as indicated by the ASTM D6603-19 Standard.
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