@article{article_1726585, title={UV PROTECTION PROPERTIES OF CELLULOSIC-POLYESTER BLEND FABRICS: EFFECTS OF FIBER TYPE AND MOISTURE CONTENT}, journal={Tekstil ve Mühendis}, volume={32}, pages={268–277}, year={2025}, DOI={10.7216/teksmuh.1726585}, author={Morsümbül, Seniha}, keywords={Cotton, viscose, lyocell, polyester, UV protection factor, moisture content, fiber cross-sectional shape.}, abstract={This study investigates the effects of fiber type and moisture content on the ultraviolet (UV) protection properties of cellulosic–polyester blend fabrics. Twill-woven fabrics composed of cotton, viscose, and lyocell fibers blended with polyester, all with comparable structures and areal densities, were analyzed. Ultraviolet Protection Factor (UPF) measurements and air permeability tests were conducted to assess performance under both dry and wet conditions. The results revealed that polyester fibers provided the highest UV shielding effectiveness in blended fabrics, followed by cotton, viscose, and lyocell. Furthermore, the cross-sectional shape of polyester fibers significantly influenced UV protection, with hexa-channel fibers showing the highest UV protection, followed by micro- and circular-types. It was also observed that increasing moisture content reduced the UV protection of fabrics, while lower air permeability enhances their UV-blocking efficiency. These findings provide valuable insights for the development of UV-protective clothing, particularly for summer garments, and highlight opportunities for modeling and optimization in textile production.}, number={139}, publisher={Tekstil Mühendisleri Odası}