Metal fiber has good electrical conductivity, excellent heat resistance, chemical resistance and high strength. Its fineness and flexibility are close to ordinary textile fibers. It has been listed as a new material and is mainly used for electromagnetic radiation protection. Clothing, antistatic clothing, etc. Among the existing electromagnetic radiation protective clothing, metal fiber protective clothing has accounted for half of the country.
At present, the metal fibers used as electromagnetic radiation protective clothing are mainly nickel fibers and stainless steel fibers, with diameters of 4, 6, 8 and 10 μm; the electromagnetic radiation shielding effectiveness of this fabric is in the range of 0.15 MHz~3GHz. 15 ~ 40dB, but the density of metal fiber is high and the elasticity is poor. Special technology must be used when mixing with fiber for use, and it is difficult to spin high count yarn above 60S. In addition, metal fibers have strong rigidity and lack resistance to rubbing. Metal fiber fabrics with a diameter of 8μm or more are particularly prominent. After repeated scrubbing, the broken metal fibers will fall off, causing it to feel irritating when worn next to the body, and the shielding effectiveness has also decreased; metal fibers encounter Sweat will rust, which is bad for human skin. In the process of producing stainless steel fiber protective clothing, the phenomenon that the body of the operator is allergic due to the shedding of the stainless steel fiber often occurs.
