Inherent mosquito repellent-cum-multifunctional polyurethane for multifunctional coating of cotton fabric.

[Display omitted] Textile had evolved from simple apparel to multifunctional textiles due to increasing awareness and upgrading technology. For fulfilling modern demands, multifunctional textile became a vital area of exploration for textile research community, and polyurethane coated textile is a significant contributor to attain this position. The current work reports ethyl anthranilate-based durable inherent mosquito repellent polyurethane (Mos PU) with ultraviolet (UV) protective, antibacterial and waterproof-breathable properties for coating of textiles. The Mos PU was characterised using Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) and Gel permeation chromatography (GPC) techniques. The changes in the properties of cotton fabric with the varying add-on were also studied. Thermal properties of Mos PU and coated samples were studied using thermogravimetric analysis. The functional properties of the coated cotton fabrics were also assessed against repeated laundering. The bacteria adherence and quantitative antibacterial activity tests confirmed the antibacterial effect of coated surface on different bacterial strains, gram positive S. aureus and gram negative E. coli. Moreover, the prepared coated cotton fabric showed excellent mosquito repellency (100 %), appreciable water vapour transmission rate and excellent UV protection factor (UPF rating of 50⁺). The functional properties of the prepared coated samples were significant even after ten launderings. [ABSTRACT FROM AUTHOR]