Efficiency of Protective Textile Smart Systems Using Electronic Tags

The possibilities of creating textile smart systems for protective clothing operating at elevated temperatures are investigated. The main performance indicators of textile products in such conditions are determined. Protective clothing for working in an environment of elevated temperatures provides for the possibility of working in temperatures from 40 to 160°. For these purposes, fire-resistant polyester fibres are used. The service life of such materials is limited, and for high temperatures, the total service life can be several hours. An indicator of the integrated accumulation of thermal damage is proposed to monitor the condition of a textile product. The automated monitoring of the state of the protective system is provided by an integrated electronic complex, including a temperature sensor, a contactless NFC transmitter, an NFC tag, and an external NFC reader. Experiments in which electronic tags were heated to high temperatures under mechanical stress were conducted. Microscopic studies demonstrate certain changes in the structure of electronic tags. The main indicator of an electronic tag is not its appearance, but its performance. The ability to record and read information is proposed as such an indicator. The studies demonstrate the practical invariance of the response time up to a temperature of 130–140° and a slight increase with long-term heating to a temperature of 160–170°, which exceeds the maximum values of the functioning of protective textile systems.