Definition: The fabric is burned on open flame to observe the deformation of the fiber after heating, the flame condition, the difficulty of burning speed, emitting the smell and color, after burning the ashes and the shape of the residue, hardness and other methods to identify.
Cotton, the case of fire that is burning, fast, yellow flame, a little white smoke and the smell of burning paper, charred ember soft, dark gray. Ma fiber: similar to cotton, but the ash is gray.
The flame is orange, burning protein taste, burning faster than cotton, ashes and more, was not forming a dark brown shape, by hand a pressure that is, that is, Broken, into a loose powder.
Silk: burning shape and hair fibers similar to the first volume into a ball, burning faster than wool, protein taste, but the smell than wool. After burning brown ball.
Viscose fiber: similar to cotton, burning faster than cotton, yellow flame, burning paper smell, ashes gray or light gray.
Polyester: When burning drops the melt, the flame is blue. The top has black smoke, slightly aromatic odor, ashes were lumps, finger pressure that is broken.
Nylon: not easy to burn, see the fire first crimp, melt transparent colloidal, hot silk can be pulled out, the taste of celery. The ashes are not brittle.
