Ultraviolet (UV) protection fi nishes, which are sometimes referred to as UV shielding agents, represent one of the most important groups of chemical fi nishing agents applied to textile materials, with the goal of protecting people and textile materials from the harmful eff ects of UV radiation. Th e energy of UV radiation, which is signifi cantly higher than that of visible light, has the potential to initiate diff erent chemical reactions that may be hazardous to human health and can deteriorate textile fi bres. Although moderate sun exposure has benefi cial health eff ects, overexposure to UV radiation may result in serious harmful health eff ects since both UVA (320-400 nm) and UVB (280-320 nm) rays induce diff erent cellular responses that manifest as pigmentation, sunburn, skin ageing, skin cancer and DNA damage [1-3]. Th e disadvantages of longterm exposure of textiles to UV weathering are associated with the cleavage of diff erent chemical bonds by the absorbed UV radiation, which leads to