Fiber When the flame is near the flame, the olfactory ash shape after leaving the flame in the flame.
Cotton burns immediately after the flame is close to the flame, and continues to burn faster,
with afterglow Burning paper smell Very little, soft, black or gray.
Hair Melts from flame Melts and burns Hard to burn, self-extinguishing Burning feather smell Fragile, brittle, black
The silk melts away from the flame There is a faint sound when burning It is difficult to continue burning, self-extinguishing, and splashes when burning Burning feather smell Fragile, brittle, black.
Hemp will burn when near flames, there will be a popping sound when burning, continue to burn,
smoke will have afterglow, the same cotton, the same cotton.
Viscose burns near flame, burns very fast, no afterglow, burning paper mixed with chemical odors,
no ash except for those with no light, and a small amount of black ash in between.
Nylon melts when near the flame, melts, drips and foams, does not continue to burn directly,
like celery, hard, round, light, brown to gray, pearl.
Polyester Same as above Same as above Can continue to burn, a few have smoke Very weak sweetness Hard round, black or light brown.
Acrylic fiber melts, burns near flame, melts and burns, fast burning, splashing, weak pungent taste, hard black, irregular or beaded.