The principle of fusion
The ignition point, combustion heat, flame temperature, and oxygen limit index of the original fiber have a decisive effect on the flammability, the spread and expansion of the fire. Some fibers are heated and melted while burning, leaving the fire source like candle oil. It can relieve the burning and reduce the bottom of the kettle, but if the molten material comes into contact with the skin, it will cause severe burns that are difficult to peel off. Synthetic fibers have melting problems. Fabrics blended with cellulose fibers can be tested without dripping molten matter, but the problem of sticking and scalding the skin still exists. After flame retardant finishing, or adding synthetic fiber spinning solution Combustion agent can make synthetic fiber meet the flame retardant requirements, but the melting point does not change much.