Material composition:18%silver/82%nylon，40D/300m=328YARD，70D/160m=174YARD，140D/80m=87YARD，200D/60m=65YARD，280D/50m=54YARD，350D/35m=38YARD，400D/30m=32YARD 1. Anti-electromagnetic wave effect: In the modern society full of electromagnetic waves emitted by OA machines, mobile phones, etc., superconducting silver ion fibers have a highly blocking effect of electromagnetic waves, which can effectively block 96.7%-99.97% of electromagnetic waves. 2. Electrical effect: After comparing the superconducting silver ion fiber with the fiber fabric with carbon, it is found that the resistance is significantly smaller, and the conductivity is good, which can prevent the stinging sensation caused by static electricity in the dry winter. 3. Thermal insulation effect: superconducting silver ion fiber has a high degree of reflection effect on electromagnetic waves, ultraviolet rays, infrared rays, etc., in addition, because the radiant heat released by the human body is difficult to discharge from the body, it has a good thermal insulation and thermal insulation effect, so that the human body feels warm in winter and cool in summer. Suitable for sewing machines and hand sewing, used for joint sewing, strong enough. If you want to reduce costs, you can use it only as the top thread and match it with regular sewing thread as the bottom thread. Under the premise of good line contact, the conductivity is not affected