Flame retardant standards determine: a) detect any sample after ignition should not have spread to the burning fabric or fabric upper edge. b) detect any kind should not have holes to form after ignition. c) detect any sample should not have been ignited burn or melt droplets fall. d) extension of time shall be less than or equal fired two seconds. e) smoldering time must be less than or equal to 2 seconds. Shandong Antai New Material Technology Co., Ltd. Main wool flame retardant wool manufacturer, welcome new and old customers to buy. Flame retardant finishing three ways: (1) exhaust combustion method: flame retardants and cellulose fibre ionic bond or covalent bond Weifang retardant wool, it does not dissolve in fibre obtain durability fire-retardant effect. (2) dope method: the flame directly into the spinning solution. (3) copolymerization method: flame retardant added to the polymer chain segments retardant wool, the fabric has a washable, resistant to bleaching, perspiration fastness and other qualified, does not cause the skin to be absorbed. Shandong Antai New Material Technology Co., Ltd. Main retardant wool, welcome new and old customers to buy. Weifang wool flame retardant wool brand _ _ Shandong by Shandong Aetna Aetna Technology New Material Technology Co., Ltd .. Shandong Antai New Material Technology Co., Ltd. (www.antaitech.com) strong, credible, Shandong Weifang other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shandong Advanced Technology and you work into the brilliant, for a better future!