Thermochromic Sewing Yarn Temperature-Sensitive Color-Changing Thread for Fabrics

1.Thermochromic yarns support multiple base temperature-triggered color changes, covering the range from -5℃ to 78℃. Common trigger temperatures include 0℃, 5℃, 21℃, 31℃, 45℃, etc. The color change can be reversed over and over again wi...