Nano-cotton Fabrics with High Ultraviolet Protection

Abstract

Ultraviolet resistant cotton fabrics were developed by coating with ZnO and TiO2 nanoparticles. The ZnO nanoparticles applied on cotton yarns were found to withstand the knitting operation. Meanwhile, the TiO 2 nanoparticles applied on the bleached as well as reactive dyed cotton fabrics by the sol-gel and linking agent methods were found to be intact after various cycles of domestic washing. Knitted fabrics containing ZnO nanoparticles showed moderate to high ultraviolet protection factor (UPF) values, whereas 50+ UPF values were measured for the TiO2-coated samples. Further it was found that the rutile phase was better than anatase phase in blocking UV rays. The developed process can be easily adapted to the existing textile machinery, making it industrially viable.

Functionalization of cotton fabrics with corona/air RF plasma and colloidal TiO2 nanoparticles

“…TiO 2 9 2 fabric after washing can be also found in literature and it is assigned to morphological change of textile nano-composite that occurred after washing (Paul et al 2010). Daoud and co-workers suggested that the good laundering durability of Co fabrics loaded with TiO 2 NPs can be attributed to the formation of covalent bonding resulting from a dehydratation reaction between the hydroxyl groups of cotton and the hydroxyl groups of TiO 2 Xin et al 2004).…”

Application of anisotropic silver nanoparticles: Multifunctionalization of wool fabric

“…Consumers are demanding textile products with enhanced functionalities, such as antibacterial [31][32][33][34], antistatic [35][36][37], stain resistant [38,39], and UV protection [40][41][42]. Wool fiber is a superior natural textile material due to its resilience and comfort attributes.…”

Fabrication and UV-blocking property of nano-ZnO assembled cotton fibers via a two-step hydrothermal method

“…These radiations are present in natural terrestrial sunlight in different amounts due to the filtering activity of the upper atmosphere and local conditions (latitude, altitude and clouds). UV-C and most of UV-B are filtered by the ozone layer (Ghule et al 2006;Paul et al 2010). Here, UV spectra were recorded for untreated and treated cotton fibers by measuring the transmission.…”

“…It can efficiently absorb UV radiation coming from the atmospheric ozone layer (Sato and Ikeya 2004) and can be directly used in daily applications. Recently, many studies have been devoted to improve the UV protection function of cotton fabrics using nano-ZnO (Yadav et al 2006;Kathirvelu et al 2009;Mao et al 2009;Zohdy et al 2009;Farouk et al 2010;Paul et al 2010;Wang et al 2011). Yadav et al (2006 applied ZnO nanoparticles onto cotton fabrics using acrylic binder.…”