2023 年 79 巻 10 号 p. 229-241
As the global environment changes, the development of thermal functionality of fabric products has attracting attention. Accordingly, methods to measure the surface temperature of fabrics and an experimental system to immediately provide changes in humidity for this purpose were examined. We first attempted a method to move the humidity setting of an artificial climate chamber up and down at the maximum rate for the evaluation of exothermicity of moisture absorption and endothermicity of moisture release characteristics. Next, we evaluated a method to move back and forth between two consecutive climate artificial chambers to measure exothermicity of moisture absorption and endothermicity of moisture properties with higher accuracy. The latter method was then used to compare the infrared thermocamera, a non-contact thermometer, with the K-type thermocouple sensor, a contact thermometer.
The results suggested that the thermometer’s heat capacity had an effect on the measurement. Furthermore, when woven and knitted fabrics were measured by moving them between low and high humidity environments of 10 °C, 20 °C, and 30 °C, a correlation was found between the amount of heat generated and the grade of the woven and knitted fabrics.
