Abstract:

This paper tends to develop a piece of electrical heating textile for thermal clothing. Six pieces of heating textiles with different textures and different silver-coated yarn content were knitted. The electric heating properties of the six samples were tested, based on an electric heating module and an infrared temperature acquisition system. Then, the one, which performs best in thermal stability and heat generation, was picked out to electrically heated clothing simulation. The test results indicated that the resistance of interlock stitch is lower than plain stitch. And the higher the silver-coated yarn content is, the lower the resistance becomes. Also, the thermal stability of resistance shows better with interlock texture. When charged, the temperature distribution of interlock stitch is more uniform than plain stitch, and the temperature rise of sample, with the rate of silver coated and polyester yarn of 3：7, is most obvious. The simulation test of thermal garment’ s heating properties showed that the temperature of the clothing surface, with the sample mentioned above as the heating element, could reach 35℃ at 6 V. Consequently, the textile knitted with silver-coated yarns can provide enough heat to the body while maintaining its thermal comfort.

Key words: electrically-heated textile, silver-coated yarn, thermal-electric property, electrical resistance