Fig. 1: Infrared (IR)- and thermal radiation-shielding properties of a textile weaved using polyurethane–antimony tin oxide (PU–ATO) composite fibers.
From: Development of a wearable infrared shield based on a polyurethane–antimony tin oxide composite fiber
a A conceptual schematic of the method of concealing the IR image of a person by shielding the IR and thermal radiation emitted from the person with the PU–ATO textile. When concealed with a commonly used fabric, such as polyester or polyurethane fabric, the IR profile of the person clothed in the fabric is recognizable. In contrast, when concealed with the textile weaved using the PU–ATO composite fibers, the IR profile of the person is not recognizable because of the shielding of IR and thermal radiation. b IR transmittance properties of textiles based on polyester, PU, and the PU–ATO composite; measurements were performed over the wavelength range of 7–14 µm. c A schematic showing the IR- and thermal radiation-shielding and hydrophobic properties of a textile weaved with PU–ATO composite fibers to prevent the degradation of IR and thermal radiation shielding due to water absorption by the fibers. d Visible-light and IR images of textiles based on polyester, PU, and PU–ATO applied to parts of a white cotton T-shirt. The part where the PU–ATO textile was applied appears as a hole in the body. e Visible-light and IR images of an index finger partly wrapped with the PU–ATO textile. In the images, a part of the finger appears to have been cutoff, owing to its invisibility.
