Abstract: A method of manufacturing multi-functional yarn fiber material by mixing silver ion in the range of from wt. 5% to wt. 15% and functional powder in the range of from wt. 85% to wt. 95% is provided. The functional powder is one of coconut shell charcoal powder, bamboo charcoal powder, germanium powder, titanium dioxide powder, and aluminum oxide powder so as to produce the material which is applied in many purposes such as germproof, deodorization, producing far infrared ray and anion, balancing ion, anti-ultraviolet ray, cool, and comfort.

Abstract: A fireproof knitting fabric includes an interior lining and an exterior layer. The interior lining is obtained by interweaving flame retardant fiber. The exterior layer is obtained by carburizing oxidized PAN yarn (O.X.PAN) and then interweaving the oxidized PAN yarn and the flame retardant fiber of the interior lining. The obtained fireproof knitting fabric is featured by fireproofness, thermal insulation, light weight, soft and comfortable texture.