1. Cotton fiber and hemp fiber
Cotton fibers just close to the flame, burning quickly, the flame is yellow, snow blue smoke. Often when burning emit burning paper odor, after burning cotton fiber has very little powder ash, black gray.
Hemp fiber just near the flame, burning quickly, the flame is yellow, tongue blue smoke. Emit a smell of plant ash, after burning to produce a small amount of gray ash powder.
2. Wool fibers and silk
The hair (animal hair fiber, wool, cashmere, mink “, etc.) meets the fire concave combustion foaming, burning speed is slow, gives out the burning smell of hair. After burning the ash is mostly shiny black spherical particles, finger pressure is broken.
Silk shrinks into clumps when fired, burning slowly and with a sizzling sound. Exudes the hair burnt odor, after burning the ashes into black brown small ball, hand twist that is broken.
3. Polyamide and polyester
Nylon polyamide fiber (usually used to call nylon), near the flame that is rapid shrinkage melting into white gum, melting in the flame and bubbling, burning without flame. It is difficult to continue burning without the flame, emitting celery odor. After cooling, the melt is light brown and not easy to break.
Polyester fiber (Dacron), easy to ignite, melting near the flame, when burning while melting smoke, the flame is yellow, emitting a slightly sweet aroma, after burning the ash is black brown hard block. You can break it with your fingers.
4. Acrylic and polypropylene
Acrylic fiber polyacrylonitrile fiber (commonly used to make chemical fiber wool sweater), near the fire softening melting, black smoke after the fire, the flame is white, leaving the flame quickly burning, emitting the bitter smell of fire meat, after burning ash is irregular black hard block, hand twist fragile. Polypropylene fiber, the scientific name of polypropylene fiber, near the flame is melting shrink, flammable, from the flame burns slowly and snow black smoke, the top of the flame is yellow, the bottom of the flame is blue, exudes the smell of oil, after burning the ash is hard round collapse yellow-brown particles, easy to be broken by hand.
5. Veron and Loron
Vinylon polyvinyl formaldehyde fiber, not easy to ignite, near the flame melting shrinkage, burning at the top of a little flame, to be melted into a gelatinous flame rapidly increase, thick black smoke, sending out aromatic odor, after burning remaining black beaded particles, can be crushed by fingers.
Flon “scientific name polyvinyl chloride fiber, difficult to burn, from the fire is extinguished, the flame is yellow, the lower end of the green, white smoke, emitting pungent, spicy and sour taste. After burning the ash for black brown irregular hard block, finger is not easy to twist.
6.spandex and Flon
Polyurethane fiber, near the fire melting to burn, the flame is blue, leave the fire to continue melting, emitting a special pungent smell, mouth after burning ash for soft tent pine black ash.
Keratlon scientific name poly four years ethylene fiber ³, close to the flame only melting, difficult to ignite, do not burn, the edge of the flame is blue green carbonization. After melting decomposition, gas toxic, molten material for hard black beads, hand twist not broken.
7. Viscose fiber and copper ammonium fiber
Viscose fiber is flammable, burning fast, the flame is yellow, sending out the smell of burning paper, less ash after burning, a smooth twisted ribbon light gray or gray fine powder.
Copper ammonium fiber common name tiger kapok, near the flame that is burning, burning speed is very fast, the flame is yellow, emitting chemical ester acid odor, burning ash is very few, only a small amount of gray black ash.
Post time: Oct-17-2022
