Discriminating Webbing

The two kinds of warp and weft yarn do not know the category of ribbon out of several, respectively with a lighter burning, burning process to observe some physical phenomena, in order to determine the raw material of warp and weft yarn. When burning, we should observe the flame, melting condition and smell, and the condition of the ashes after burning.
The following are the combustion physical performance parameters of two kinds of webbing materials for your reference:
Nylon webbing: near flame that melt melt burning, dripping and foaming do not directly continue to burn like celery flavor hard, round, light, brown to gray, beaded
Polyester webbing: near flame melting melting flame, dripping and foaming can continue to burn, a few smoke very weak sweet hard round, black or light brown
Cotton fiber and hemp fiber
Cotton fibers and hemp fibers are just near the flame is burning, burning quickly, the flame is yellow, blue smoke. The difference between the smell emitted by burning cotton and the ash after burning is that the smell of paper is emitted by burning cotton, and the smell of wood ash is emitted by burning hemp. When burned, cotton has very little powder ash, which is black or gray, while hemp produces a small amount of gray powder ash.
Nylon and polyester
Nylon (nylon) the scientific name of polyamide fiber, near the flame is rapidly melting into a white glue, melting in the flame dripping and foaming, burning without flame, leave the flame difficult to continue burning, sending out celery flavor, after cooling light brown melt is not easy to grind.
Polyester fiber, the scientific name of polyester fiber, easy to ignite, near the flame is melting, burning side melting side black smoke, yellow flame, emitting aromatic smell, after burning the ashes into black brown hard block, can be broken with fingers.